diff options
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/Kconfig | 26 | ||||
| -rw-r--r-- | drivers/mtd/nand/au1550nd.c | 166 | ||||
| -rw-r--r-- | drivers/mtd/nand/autcpu12.c | 23 | ||||
| -rw-r--r-- | drivers/mtd/nand/diskonchip.c | 100 | ||||
| -rw-r--r-- | drivers/mtd/nand/edb7312.c | 48 | ||||
| -rw-r--r-- | drivers/mtd/nand/h1910.c | 50 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 534 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_bbt.c | 248 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_ecc.c | 44 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_ids.c | 30 | ||||
| -rw-r--r-- | drivers/mtd/nand/nandsim.c | 164 | ||||
| -rw-r--r-- | drivers/mtd/nand/ppchameleonevb.c | 6 | ||||
| -rw-r--r-- | drivers/mtd/nand/rtc_from4.c | 58 | ||||
| -rw-r--r-- | drivers/mtd/nand/s3c2410.c | 126 | ||||
| -rw-r--r-- | drivers/mtd/nand/sharpsl.c | 41 | ||||
| -rw-r--r-- | drivers/mtd/nand/spia.c | 6 | ||||
| -rw-r--r-- | drivers/mtd/nand/toto.c | 20 |
17 files changed, 887 insertions, 803 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 36d34e5e5a5..1fc4c134d93 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -1,5 +1,5 @@ # drivers/mtd/nand/Kconfig -# $Id: Kconfig,v 1.31 2005/06/20 12:03:21 bjd Exp $ +# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $ menu "NAND Flash Device Drivers" depends on MTD!=n @@ -25,33 +25,33 @@ config MTD_NAND_VERIFY_WRITE config MTD_NAND_AUTCPU12 tristate "SmartMediaCard on autronix autcpu12 board" - depends on ARM && MTD_NAND && ARCH_AUTCPU12 + depends on MTD_NAND && ARCH_AUTCPU12 help - This enables the driver for the autronix autcpu12 board to + This enables the driver for the autronix autcpu12 board to access the SmartMediaCard. config MTD_NAND_EDB7312 tristate "Support for Cirrus Logic EBD7312 evaluation board" - depends on ARM && MTD_NAND && ARCH_EDB7312 + depends on MTD_NAND && ARCH_EDB7312 help - This enables the driver for the Cirrus Logic EBD7312 evaluation + This enables the driver for the Cirrus Logic EBD7312 evaluation board to access the onboard NAND Flash. config MTD_NAND_H1900 tristate "iPAQ H1900 flash" - depends on ARM && MTD_NAND && ARCH_PXA && MTD_PARTITIONS + depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS help This enables the driver for the iPAQ h1900 flash. config MTD_NAND_SPIA tristate "NAND Flash device on SPIA board" - depends on ARM && ARCH_P720T && MTD_NAND + depends on ARCH_P720T && MTD_NAND help If you had to ask, you don't have one. Say 'N'. config MTD_NAND_TOTO tristate "NAND Flash device on TOTO board" - depends on ARM && ARCH_OMAP && MTD_NAND + depends on ARCH_OMAP && MTD_NAND help Support for NAND flash on Texas Instruments Toto platform. @@ -59,8 +59,8 @@ config MTD_NAND_IDS tristate config MTD_NAND_AU1550 - tristate "Au1550 NAND support" - depends on SOC_AU1550 && MTD_NAND + tristate "Au1550/1200 NAND support" + depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND help This enables the driver for the NAND flash controller on the AMD/Alchemy 1550 SOC. @@ -71,7 +71,7 @@ config MTD_NAND_RTC_FROM4 select REED_SOLOMON select REED_SOLOMON_DEC8 help - This enables the driver for the Renesas Technology AG-AND + This enables the driver for the Renesas Technology AG-AND flash interface board (FROM_BOARD4) config MTD_NAND_PPCHAMELEONEVB @@ -88,7 +88,7 @@ config MTD_NAND_S3C2410 SoCs No board specfic support is done by this driver, each board - must advertise a platform_device for the driver to attach. + must advertise a platform_device for the driver to attach. config MTD_NAND_S3C2410_DEBUG bool "S3C2410 NAND driver debug" @@ -181,7 +181,7 @@ config MTD_NAND_DISKONCHIP_BBTWRITE config MTD_NAND_SHARPSL bool "Support for NAND Flash on Sharp SL Series (C7xx + others)" - depends on MTD_NAND && ARCH_PXA + depends on MTD_NAND && ARCH_PXA config MTD_NAND_NANDSIM bool "Support for NAND Flash Simulator" diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 4c7719ce3f4..9c5945d6df8 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -3,7 +3,7 @@ * * Copyright (C) 2004 Embedded Edge, LLC * - * $Id: au1550nd.c,v 1.11 2004/11/04 12:53:10 gleixner Exp $ + * $Id: au1550nd.c,v 1.13 2005/11/07 11:14:30 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -17,24 +17,19 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> +#include <linux/version.h> #include <asm/io.h> /* fixme: this is ugly */ #if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 0) -#include <asm/mach-au1x00/au1000.h> -#ifdef CONFIG_MIPS_PB1550 -#include <asm/mach-pb1x00/pb1550.h> -#endif -#ifdef CONFIG_MIPS_DB1550 -#include <asm/mach-db1x00/db1x00.h> -#endif +#include <asm/mach-au1x00/au1xxx.h> #else #include <asm/au1000.h> #ifdef CONFIG_MIPS_PB1550 -#include <asm/pb1550.h> +#include <asm/pb1550.h> #endif #ifdef CONFIG_MIPS_DB1550 -#include <asm/db1x00.h> +#include <asm/db1x00.h> #endif #endif @@ -45,39 +40,22 @@ static struct mtd_info *au1550_mtd = NULL; static void __iomem *p_nand; static int nand_width = 1; /* default x8*/ -#define NAND_CS 1 - /* * Define partitions for flash device */ const static struct mtd_partition partition_info[] = { -#ifdef CONFIG_MIPS_PB1550 -#define NUM_PARTITIONS 2 - { - .name = "Pb1550 NAND FS 0", + { + .name = "NAND FS 0", .offset = 0, - .size = 8*1024*1024 + .size = 8*1024*1024 }, - { - .name = "Pb1550 NAND FS 1", + { + .name = "NAND FS 1", .offset = MTDPART_OFS_APPEND, - .size = MTDPART_SIZ_FULL + .size = MTDPART_SIZ_FULL } -#endif -#ifdef CONFIG_MIPS_DB1550 -#define NUM_PARTITIONS 2 - { - .name = "Db1550 NAND FS 0", - .offset = 0, - .size = 8*1024*1024 - }, - { - .name = "Db1550 NAND FS 1", - .offset = MTDPART_OFS_APPEND, - .size = MTDPART_SIZ_FULL - } -#endif }; +#define NB_OF(x) (sizeof(x)/sizeof(x[0])) /** @@ -112,7 +90,7 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte) * au_read_byte16 - read one byte endianess aware from the chip * @mtd: MTD device structure * - * read function for 16bit buswith with + * read function for 16bit buswith with * endianess conversion */ static u_char au_read_byte16(struct mtd_info *mtd) @@ -142,7 +120,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte) * au_read_word - read one word from the chip * @mtd: MTD device structure * - * read function for 16bit buswith without + * read function for 16bit buswith without * endianess conversion */ static u16 au_read_word(struct mtd_info *mtd) @@ -158,7 +136,7 @@ static u16 au_read_word(struct mtd_info *mtd) * @mtd: MTD device structure * @word: data word to write * - * write function for 16bit buswith without + * write function for 16bit buswith without * endianess conversion */ static void au_write_word(struct mtd_info *mtd, u16 word) @@ -188,7 +166,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len) } /** - * au_read_buf - read chip data into buffer + * au_read_buf - read chip data into buffer * @mtd: MTD device structure * @buf: buffer to store date * @len: number of bytes to read @@ -202,12 +180,12 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len) for (i=0; i<len; i++) { buf[i] = readb(this->IO_ADDR_R); - au_sync(); + au_sync(); } } /** - * au_verify_buf - Verify chip data against buffer + * au_verify_buf - Verify chip data against buffer * @mtd: MTD device structure * @buf: buffer containing the data to compare * @len: number of bytes to compare @@ -242,16 +220,16 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len) struct nand_chip *this = mtd->priv; u16 *p = (u16 *) buf; len >>= 1; - + for (i=0; i<len; i++) { writew(p[i], this->IO_ADDR_W); au_sync(); } - + } /** - * au_read_buf16 - read chip data into buffer + * au_read_buf16 - read chip data into buffer * @mtd: MTD device structure * @buf: buffer to store date * @len: number of bytes to read @@ -272,7 +250,7 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len) } /** - * au_verify_buf16 - Verify chip data against buffer + * au_verify_buf16 - Verify chip data against buffer * @mtd: MTD device structure * @buf: buffer containing the data to compare * @len: number of bytes to compare @@ -305,26 +283,26 @@ static void au1550_hwcontrol(struct mtd_info *mtd, int cmd) case NAND_CTL_CLRCLE: this->IO_ADDR_W = p_nand + MEM_STNAND_DATA; break; case NAND_CTL_SETALE: this->IO_ADDR_W = p_nand + MEM_STNAND_ADDR; break; - case NAND_CTL_CLRALE: - this->IO_ADDR_W = p_nand + MEM_STNAND_DATA; - /* FIXME: Nobody knows why this is neccecary, + case NAND_CTL_CLRALE: + this->IO_ADDR_W = p_nand + MEM_STNAND_DATA; + /* FIXME: Nobody knows why this is neccecary, * but it works only that way */ - udelay(1); + udelay(1); break; - case NAND_CTL_SETNCE: + case NAND_CTL_SETNCE: /* assert (force assert) chip enable */ au_writel((1<<(4+NAND_CS)) , MEM_STNDCTL); break; break; - case NAND_CTL_CLRNCE: + case NAND_CTL_CLRNCE: /* deassert chip enable */ au_writel(0, MEM_STNDCTL); break; break; } this->IO_ADDR_R = this->IO_ADDR_W; - + /* Drain the writebuffer */ au_sync(); } @@ -339,14 +317,16 @@ int au1550_device_ready(struct mtd_info *mtd) /* * Main initialization routine */ -int __init au1550_init (void) +int __init au1xxx_nand_init (void) { struct nand_chip *this; u16 boot_swapboot = 0; /* default value */ int retval; + u32 mem_staddr; + u32 nand_phys; /* Allocate memory for MTD device structure and private data */ - au1550_mtd = kmalloc (sizeof(struct mtd_info) + + au1550_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip), GFP_KERNEL); if (!au1550_mtd) { printk ("Unable to allocate NAND MTD dev structure.\n"); @@ -364,14 +344,17 @@ int __init au1550_init (void) au1550_mtd->priv = this; - /* MEM_STNDCTL: disable ints, disable nand boot */ - au_writel(0, MEM_STNDCTL); + /* disable interrupts */ + au_writel(au_readl(MEM_STNDCTL) & ~(1<<8), MEM_STNDCTL); + + /* disable NAND boot */ + au_writel(au_readl(MEM_STNDCTL) & ~(1<<0), MEM_STNDCTL); #ifdef CONFIG_MIPS_PB1550 /* set gpio206 high */ au_writel(au_readl(GPIO2_DIR) & ~(1<<6), GPIO2_DIR); - boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) | + boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) | ((bcsr->status >> 6) & 0x1); switch (boot_swapboot) { case 0: @@ -397,25 +380,66 @@ int __init au1550_init (void) } #endif - /* Configure RCE1 - should be done by YAMON */ - au_writel(0x5 | (nand_width << 22), 0xB4001010); /* MEM_STCFG1 */ - au_writel(NAND_TIMING, 0xB4001014); /* MEM_STTIME1 */ - au_sync(); + /* Configure chip-select; normally done by boot code, e.g. YAMON */ +#ifdef NAND_STCFG + if (NAND_CS == 0) { + au_writel(NAND_STCFG, MEM_STCFG0); + au_writel(NAND_STTIME, MEM_STTIME0); + au_writel(NAND_STADDR, MEM_STADDR0); + } + if (NAND_CS == 1) { + au_writel(NAND_STCFG, MEM_STCFG1); + au_writel(NAND_STTIME, MEM_STTIME1); + au_writel(NAND_STADDR, MEM_STADDR1); + } + if (NAND_CS == 2) { + au_writel(NAND_STCFG, MEM_STCFG2); + au_writel(NAND_STTIME, MEM_STTIME2); + au_writel(NAND_STADDR, MEM_STADDR2); + } + if (NAND_CS == 3) { + au_writel(NAND_STCFG, MEM_STCFG3); + au_writel(NAND_STTIME, MEM_STTIME3); + au_writel(NAND_STADDR, MEM_STADDR3); + } +#endif - /* setup and enable chip select, MEM_STADDR1 */ - /* we really need to decode offsets only up till 0x20 */ - au_writel((1<<28) | (NAND_PHYS_ADDR>>4) | - (((NAND_PHYS_ADDR + 0x1000)-1) & (0x3fff<<18)>>18), - MEM_STADDR1); - au_sync(); + /* Locate NAND chip-select in order to determine NAND phys address */ + mem_staddr = 0x00000000; + if (((au_readl(MEM_STCFG0) & 0x7) == 0x5) && (NAND_CS == 0)) + mem_staddr = au_readl(MEM_STADDR0); + else if (((au_readl(MEM_STCFG1) & 0x7) == 0x5) && (NAND_CS == 1)) + mem_staddr = au_readl(MEM_STADDR1); + else if (((au_readl(MEM_STCFG2) & 0x7) == 0x5) && (NAND_CS == 2)) + mem_staddr = au_readl(MEM_STADDR2); + else if (((au_readl(MEM_STCFG3) & 0x7) == 0x5) && (NAND_CS == 3)) + mem_staddr = au_readl(MEM_STADDR3); + + if (mem_staddr == 0x00000000) { + printk("Au1xxx NAND: ERROR WITH NAND CHIP-SELECT\n"); + kfree(au1550_mtd); + return 1; + } + nand_phys = (mem_staddr << 4) & 0xFFFC0000; + + p_nand = (void __iomem *)ioremap(nand_phys, 0x1000); + + /* make controller and MTD agree */ + if (NAND_CS == 0) + nand_width = au_readl(MEM_STCFG0) & (1<<22); + if (NAND_CS == 1) + nand_width = au_readl(MEM_STCFG1) & (1<<22); + if (NAND_CS == 2) + nand_width = au_readl(MEM_STCFG2) & (1<<22); + if (NAND_CS == 3) + nand_width = au_readl(MEM_STCFG3) & (1<<22); - p_nand = ioremap(NAND_PHYS_ADDR, 0x1000); /* Set address of hardware control function */ this->hwcontrol = au1550_hwcontrol; this->dev_ready = au1550_device_ready; /* 30 us command delay time */ - this->chip_delay = 30; + this->chip_delay = 30; this->eccmode = NAND_ECC_SOFT; this->options = NAND_NO_AUTOINCR; @@ -438,19 +462,19 @@ int __init au1550_init (void) } /* Register the partitions */ - add_mtd_partitions(au1550_mtd, partition_info, NUM_PARTITIONS); + add_mtd_partitions(au1550_mtd, partition_info, NB_OF(partition_info)); return 0; outio: iounmap ((void *)p_nand); - + outmem: kfree (au1550_mtd); return retval; } -module_init(au1550_init); +module_init(au1xxx_nand_init); /* * Clean up routine diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c index 4afa8ced05a..a3c7fea404d 100644 --- a/drivers/mtd/nand/autcpu12.c +++ b/drivers/mtd/nand/autcpu12.c @@ -5,8 +5,8 @@ * * Derived from drivers/mtd/spia.c * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) - * - * $Id: autcpu12.c,v 1.22 2004/11/04 12:53:10 gleixner Exp $ + * + * $Id: autcpu12.c,v 1.23 2005/11/07 11:14:30 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -14,7 +14,7 @@ * * Overview: * This is a device driver for the NAND flash device found on the - * autronix autcpu12 board, which is a SmartMediaCard. It supports + * autronix autcpu12 board, which is a SmartMediaCard. It supports * 16MiB, 32MiB and 64MiB cards. * * @@ -27,7 +27,6 @@ * 10-06-2002 TG 128K card support added */ -#include <linux/version.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/module.h> @@ -93,7 +92,7 @@ static struct mtd_partition partition_info128k[] = { #define NUM_PARTITIONS32K 2 #define NUM_PARTITIONS64K 2 #define NUM_PARTITIONS128K 2 -/* +/* * hardware specific access to control-lines */ static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd) @@ -163,7 +162,7 @@ int __init autcpu12_init (void) this->hwcontrol = autcpu12_hwcontrol; this->dev_ready = autcpu12_device_ready; /* 20 us command delay time */ - this->chip_delay = 20; + this->chip_delay = 20; this->eccmode = NAND_ECC_SOFT; /* Enable the following for a flash based bad block table */ @@ -171,21 +170,21 @@ int __init autcpu12_init (void) this->options = NAND_USE_FLASH_BBT; */ this->options = NAND_USE_FLASH_BBT; - + /* Scan to find existance of the device */ if (nand_scan (autcpu12_mtd, 1)) { err = -ENXIO; goto out_ior; } - + /* Register the partitions */ switch(autcpu12_mtd->size){ case SZ_16M: add_mtd_partitions(autcpu12_mtd, partition_info16k, NUM_PARTITIONS16K); break; case SZ_32M: add_mtd_partitions(autcpu12_mtd, partition_info32k, NUM_PARTITIONS32K); break; - case SZ_64M: add_mtd_partitions(autcpu12_mtd, partition_info64k, NUM_PARTITIONS64K); break; - case SZ_128M: add_mtd_partitions(autcpu12_mtd, partition_info128k, NUM_PARTITIONS128K); break; + case SZ_64M: add_mtd_partitions(autcpu12_mtd, partition_info64k, NUM_PARTITIONS64K); break; + case SZ_128M: add_mtd_partitions(autcpu12_mtd, partition_info128k, NUM_PARTITIONS128K); break; default: { - printk ("Unsupported SmartMedia device\n"); + printk ("Unsupported SmartMedia device\n"); err = -ENXIO; goto out_ior; } @@ -213,7 +212,7 @@ static void __exit autcpu12_cleanup (void) /* unmap physical adress */ iounmap((void *)autcpu12_fio_base); - + /* Free the MTD device structure */ kfree (autcpu12_mtd); } diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index fdb5d4ad3d5..21d4e8f4b7a 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1,4 +1,4 @@ -/* +/* * drivers/mtd/nand/diskonchip.c * * (C) 2003 Red Hat, Inc. @@ -8,15 +8,15 @@ * Author: David Woodhouse <dwmw2@infradead.org> * Additional Diskonchip 2000 and Millennium support by Dan Brown <dan_brown@ieee.org> * Diskonchip Millennium Plus support by Kalev Lember <kalev@smartlink.ee> - * + * * Error correction code lifted from the old docecc code - * Author: Fabrice Bellard (fabrice.bellard@netgem.com) + * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * converted to the generic Reed-Solomon library by Thomas Gleixner <tglx@linutronix.de> - * + * * Interface to generic NAND code for M-Systems DiskOnChip devices * - * $Id: diskonchip.c,v 1.54 2005/04/07 14:22:55 dbrown Exp $ + * $Id: diskonchip.c,v 1.55 2005/11/07 11:14:30 gleixner Exp $ */ #include <linux/kernel.h> @@ -42,16 +42,16 @@ static unsigned long __initdata doc_locations[] = { #if defined (__alpha__) || defined(__i386__) || defined(__x86_64__) #ifdef CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH - 0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000, + 0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000, 0xfffd0000, 0xfffd2000, 0xfffd4000, 0xfffd6000, - 0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000, - 0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000, + 0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000, + 0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000, 0xfffe8000, 0xfffea000, 0xfffec000, 0xfffee000, #else /* CONFIG_MTD_DOCPROBE_HIGH */ - 0xc8000, 0xca000, 0xcc000, 0xce000, + 0xc8000, 0xca000, 0xcc000, 0xce000, 0xd0000, 0xd2000, 0xd4000, 0xd6000, - 0xd8000, 0xda000, 0xdc000, 0xde000, - 0xe0000, 0xe2000, 0xe4000, 0xe6000, + 0xd8000, 0xda000, 0xdc000, 0xde000, + 0xe0000, 0xe2000, 0xe4000, 0xe6000, 0xe8000, 0xea000, 0xec000, 0xee000, #endif /* CONFIG_MTD_DOCPROBE_HIGH */ #elif defined(__PPC__) @@ -138,7 +138,7 @@ MODULE_PARM_DESC(doc_config_location, "Physical memory address at which to probe /* the Reed Solomon control structure */ static struct rs_control *rs_decoder; -/* +/* * The HW decoder in the DoC ASIC's provides us a error syndrome, * which we must convert to a standard syndrom usable by the generic * Reed-Solomon library code. @@ -163,8 +163,8 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) /* Initialize the syndrom buffer */ for (i = 0; i < NROOTS; i++) s[i] = ds[0]; - /* - * Evaluate + /* + * Evaluate * s[i] = ds[3]x^3 + ds[2]x^2 + ds[1]x^1 + ds[0] * where x = alpha^(FCR + i) */ @@ -188,7 +188,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) if (nerr < 0) return nerr; - /* + /* * Correct the errors. The bitpositions are a bit of magic, * but they are given by the design of the de/encoder circuit * in the DoC ASIC's. @@ -205,7 +205,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) can be modified since pos is even */ index = (pos >> 3) ^ 1; bitpos = pos & 7; - if ((index >= 0 && index < SECTOR_SIZE) || + if ((index >= 0 && index < SECTOR_SIZE) || index == (SECTOR_SIZE + 1)) { val = (uint8_t) (errval[i] >> (2 + bitpos)); parity ^= val; @@ -216,7 +216,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) bitpos = (bitpos + 10) & 7; if (bitpos == 0) bitpos = 8; - if ((index >= 0 && index < SECTOR_SIZE) || + if ((index >= 0 && index < SECTOR_SIZE) || index == (SECTOR_SIZE + 1)) { val = (uint8_t)(errval[i] << (8 - bitpos)); parity ^= val; @@ -233,7 +233,7 @@ static void DoC_Delay(struct doc_priv *doc, unsigned short cycles) { volatile char dummy; int i; - + for (i = 0; i < cycles; i++) { if (DoC_is_Millennium(doc)) dummy = ReadDOC(doc->virtadr, NOP); @@ -242,7 +242,7 @@ static void DoC_Delay(struct doc_priv *doc, unsigned short cycles) else dummy = ReadDOC(doc->virtadr, DOCStatus); } - + } #define CDSN_CTRL_FR_B_MASK (CDSN_CTRL_FR_B0 | CDSN_CTRL_FR_B1) @@ -327,7 +327,7 @@ static u_char doc2000_read_byte(struct mtd_info *mtd) return ret; } -static void doc2000_writebuf(struct mtd_info *mtd, +static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -343,7 +343,7 @@ static void doc2000_writebuf(struct mtd_info *mtd, if (debug) printk("\n"); } -static void doc2000_readbuf(struct mtd_info *mtd, +static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -358,7 +358,7 @@ static void doc2000_readbuf(struct mtd_info *mtd, } } -static void doc2000_readbuf_dword(struct mtd_info *mtd, +static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -379,7 +379,7 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd, } } -static int doc2000_verifybuf(struct mtd_info *mtd, +static int doc2000_verifybuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -406,12 +406,12 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) doc200x_hwcontrol(mtd, NAND_CTL_SETALE); this->write_byte(mtd, 0); doc200x_hwcontrol(mtd, NAND_CTL_CLRALE); - + /* We cant' use dev_ready here, but at least we wait for the - * command to complete + * command to complete */ udelay(50); - + ret = this->read_byte(mtd) << 8; ret |= this->read_byte(mtd); @@ -438,7 +438,7 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) this->read_buf = &doc2000_readbuf_dword; } } - + return ret; } @@ -469,7 +469,7 @@ static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this, int state) struct doc_priv *doc = this->priv; int status; - + DoC_WaitReady(doc); this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); DoC_WaitReady(doc); @@ -503,7 +503,7 @@ static u_char doc2001_read_byte(struct mtd_info *mtd) return ReadDOC(docptr, LastDataRead); } -static void doc2001_writebuf(struct mtd_info *mtd, +static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -517,7 +517,7 @@ static void doc2001_writebuf(struct mtd_info *mtd, WriteDOC(0x00, docptr, WritePipeTerm); } -static void doc2001_readbuf(struct mtd_info *mtd, +static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -535,7 +535,7 @@ static void doc2001_readbuf(struct mtd_info *mtd, buf[i] = ReadDOC(docptr, LastDataRead); } -static int doc2001_verifybuf(struct mtd_info *mtd, +static int doc2001_verifybuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -570,7 +570,7 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd) return ret; } -static void doc2001plus_writebuf(struct mtd_info *mtd, +static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -587,7 +587,7 @@ static void doc2001plus_writebuf(struct mtd_info *mtd, if (debug) printk("\n"); } -static void doc2001plus_readbuf(struct mtd_info *mtd, +static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -617,7 +617,7 @@ static void doc2001plus_readbuf(struct mtd_info *mtd, if (debug) printk("\n"); } -static int doc2001plus_verifybuf(struct mtd_info *mtd, +static int doc2001plus_verifybuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -797,7 +797,7 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col WriteDOC(0, docptr, Mplus_FlashControl); } - /* + /* * program and erase have their own busy handlers * status and sequential in needs no delay */ @@ -822,7 +822,7 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col /* This applies to read commands */ default: - /* + /* * If we don't have access to the busy pin, we apply the given * command delay */ @@ -945,7 +945,7 @@ static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, for (i = 0; i < 6; i++) { if (DoC_is_MillenniumPlus(doc)) ecc_code[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i); - else + else ecc_code[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i); if (ecc_code[i] != empty_write_ecc[i]) emptymatch = 0; @@ -982,7 +982,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ void __iomem *docptr = doc->virtadr; volatile u_char dummy; int emptymatch = 1; - + /* flush the pipeline */ if (DoC_is_2000(doc)) { dummy = ReadDOC(docptr, 2k_ECCStatus); @@ -997,7 +997,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ dummy = ReadDOC(docptr, ECCConf); dummy = ReadDOC(docptr, ECCConf); } - + /* Error occured ? */ if (dummy & 0x80) { for (i = 0; i < 6; i++) { @@ -1035,7 +1035,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ if (!emptymatch) ret = doc_ecc_decode (rs_decoder, dat, calc_ecc); if (ret > 0) printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret); - } + } if (DoC_is_MillenniumPlus(doc)) WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf); else @@ -1046,7 +1046,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ } return ret; } - + //u_char mydatabuf[528]; /* The strange out-of-order .oobfree list below is a (possibly unneeded) @@ -1065,7 +1065,7 @@ static struct nand_oobinfo doc200x_oobinfo = { .eccpos = {0, 1, 2, 3, 4, 5}, .oobfree = { {8, 8}, {6, 2} } }; - + /* Find the (I)NFTL Media Header, and optionally also the mirror media header. On sucessful return, buf will contain a copy of the media header for further processing. id is the string to scan for, and will presumably be @@ -1251,7 +1251,7 @@ static inline int __init inftl_partscan(struct mtd_info *mtd, mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits); mh->FormatFlags = le32_to_cpu(mh->FormatFlags); mh->PercentUsed = le32_to_cpu(mh->PercentUsed); - + printk(KERN_INFO " bootRecordID = %s\n" " NoOfBootImageBlocks = %d\n" " NoOfBinaryPartitions = %d\n" @@ -1468,7 +1468,7 @@ static inline int __init doc2001_init(struct mtd_info *mtd) ReadDOC(doc->virtadr, ChipID); if (ReadDOC(doc->virtadr, ChipID) != DOC_ChipID_DocMil) { /* It's not a Millennium; it's one of the newer - DiskOnChip 2000 units with a similar ASIC. + DiskOnChip 2000 units with a similar ASIC. Treat it like a Millennium, except that it can have multiple chips. */ doc2000_count_chips(mtd); @@ -1530,20 +1530,20 @@ static inline int __init doc_probe(unsigned long physadr) * to the DOCControl register. So we store the current contents * of the DOCControl register's location, in case we later decide * that it's not a DiskOnChip, and want to put it back how we - * found it. + * found it. */ save_control = ReadDOC(virtadr, DOCControl); /* Reset the DiskOnChip ASIC */ - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, virtadr, DOCControl); - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, virtadr, DOCControl); /* Enable the DiskOnChip ASIC */ - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, virtadr, DOCControl); - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, virtadr, DOCControl); ChipID = ReadDOC(virtadr, ChipID); @@ -1738,7 +1738,7 @@ static int __init init_nanddoc(void) int i, ret = 0; /* We could create the decoder on demand, if memory is a concern. - * This way we have it handy, if an error happens + * This way we have it handy, if an error happens * * Symbolsize is 10 (bits) * Primitve polynomial is x^10+x^3+1 diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c index 5549681ccdc..9b1fd2f387f 100644 --- a/drivers/mtd/nand/edb7312.c +++ b/drivers/mtd/nand/edb7312.c @@ -6,7 +6,7 @@ * Derived from drivers/mtd/nand/autcpu12.c * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: edb7312.c,v 1.11 2004/11/04 12:53:10 gleixner Exp $ + * $Id: edb7312.c,v 1.12 2005/11/07 11:14:30 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -71,27 +71,27 @@ static struct mtd_partition partition_info[] = { #endif -/* +/* * hardware specific access to control-lines */ -static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd) +static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd) { switch(cmd) { - - case NAND_CTL_SETCLE: - clps_writeb(clps_readb(ep7312_pxdr) | 0x10, ep7312_pxdr); + + case NAND_CTL_SETCLE: + clps_writeb(clps_readb(ep7312_pxdr) | 0x10, ep7312_pxdr); break; - case NAND_CTL_CLRCLE: + case NAND_CTL_CLRCLE: clps_writeb(clps_readb(ep7312_pxdr) & ~0x10, ep7312_pxdr); break; - + case NAND_CTL_SETALE: clps_writeb(clps_readb(ep7312_pxdr) | 0x20, ep7312_pxdr); break; case NAND_CTL_CLRALE: clps_writeb(clps_readb(ep7312_pxdr) & ~0x20, ep7312_pxdr); break; - + case NAND_CTL_SETNCE: clps_writeb((clps_readb(ep7312_pxdr) | 0x80) & ~0x40, ep7312_pxdr); break; @@ -122,16 +122,16 @@ static int __init ep7312_init (void) int mtd_parts_nb = 0; struct mtd_partition *mtd_parts = 0; void __iomem * ep7312_fio_base; - + /* Allocate memory for MTD device structure and private data */ - ep7312_mtd = kmalloc(sizeof(struct mtd_info) + + ep7312_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); if (!ep7312_mtd) { printk("Unable to allocate EDB7312 NAND MTD device structure.\n"); return -ENOMEM; } - + /* map physical adress */ ep7312_fio_base = ioremap(ep7312_fio_pbase, SZ_1K); if(!ep7312_fio_base) { @@ -139,23 +139,23 @@ static int __init ep7312_init (void) kfree(ep7312_mtd); return -EIO; } - + /* Get pointer to private data */ this = (struct nand_chip *) (&ep7312_mtd[1]); - + /* Initialize structures */ memset((char *) ep7312_mtd, 0, sizeof(struct mtd_info)); memset((char *) this, 0, sizeof(struct nand_chip)); - + /* Link the private data with the MTD structure */ ep7312_mtd->priv = this; - + /* * Set GPIO Port B control register so that the pins are configured * to be outputs for controlling the NAND flash. */ clps_writeb(0xf0, ep7312_pxddr); - + /* insert callbacks */ this->IO_ADDR_R = ep7312_fio_base; this->IO_ADDR_W = ep7312_fio_base; @@ -163,14 +163,14 @@ static int __init ep7312_init (void) this->dev_ready = ep7312_device_ready; /* 15 us command delay time */ this->chip_delay = 15; - + /* Scan to find existence of the device */ if (nand_scan (ep7312_mtd, 1)) { iounmap((void *)ep7312_fio_base); kfree (ep7312_mtd); return -ENXIO; } - + #ifdef CONFIG_MTD_PARTITIONS ep7312_mtd->name = "edb7312-nand"; mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, part_probes, @@ -185,11 +185,11 @@ static int __init ep7312_init (void) mtd_parts_nb = NUM_PARTITIONS; part_type = "static"; } - + /* Register the partitions */ printk(KERN_NOTICE "Using %s partition definition\n", part_type); add_mtd_partitions(ep7312_mtd, mtd_parts, mtd_parts_nb); - + /* Return happy */ return 0; } @@ -201,13 +201,13 @@ module_init(ep7312_init); static void __exit ep7312_cleanup (void) { struct nand_chip *this = (struct nand_chip *) &ep7312_mtd[1]; - + /* Release resources, unregister device */ nand_release (ap7312_mtd); - + /* Free internal data buffer */ kfree (this->data_buf); - + /* Free the MTD device structure */ kfree (ep7312_mtd); } diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c index 3825a7a0900..f68f7a99a63 100644 --- a/drivers/mtd/nand/h1910.c +++ b/drivers/mtd/nand/h1910.c @@ -7,7 +7,7 @@ * Copyright (C) 2002 Marius Gröger (mag@sysgo.de) * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: h1910.c,v 1.5 2004/11/04 12:53:10 gleixner Exp $ + * $Id: h1910.c,v 1.6 2005/11/07 11:14:30 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -54,24 +54,24 @@ static struct mtd_partition partition_info[] = { #endif -/* +/* * hardware specific access to control-lines */ -static void h1910_hwcontrol(struct mtd_info *mtd, int cmd) +static void h1910_hwcontrol(struct mtd_info *mtd, int cmd) { struct nand_chip* this = (struct nand_chip *) (mtd->priv); - + switch(cmd) { - - case NAND_CTL_SETCLE: + + case NAND_CTL_SETCLE: this->IO_ADDR_R |= (1 << 2); this->IO_ADDR_W |= (1 << 2); break; - case NAND_CTL_CLRCLE: + case NAND_CTL_CLRCLE: this->IO_ADDR_R &= ~(1 << 2); this->IO_ADDR_W &= ~(1 << 2); break; - + case NAND_CTL_SETALE: this->IO_ADDR_R |= (1 << 3); this->IO_ADDR_W |= (1 << 3); @@ -80,7 +80,7 @@ static void h1910_hwcontrol(struct mtd_info *mtd, int cmd) this->IO_ADDR_R &= ~(1 << 3); this->IO_ADDR_W &= ~(1 << 3); break; - + case NAND_CTL_SETNCE: break; case NAND_CTL_CLRNCE: @@ -108,18 +108,18 @@ static int __init h1910_init (void) int mtd_parts_nb = 0; struct mtd_partition *mtd_parts = 0; void __iomem *nandaddr; - + if (!machine_is_h1900()) return -ENODEV; - - nandaddr = __ioremap(0x08000000, 0x1000, 0, 1); + + nandaddr = ioremap(0x08000000, 0x1000); if (!nandaddr) { printk("Failed to ioremap nand flash.\n"); return -ENOMEM; } - + /* Allocate memory for MTD device structure and private data */ - h1910_nand_mtd = kmalloc(sizeof(struct mtd_info) + + h1910_nand_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); if (!h1910_nand_mtd) { @@ -127,22 +127,22 @@ static int __init h1910_init (void) iounmap ((void *) nandaddr); return -ENOMEM; } - + /* Get pointer to private data */ this = (struct nand_chip *) (&h1910_nand_mtd[1]); - + /* Initialize structures */ memset((char *) h1910_nand_mtd, 0, sizeof(struct mtd_info)); memset((char *) this, 0, sizeof(struct nand_chip)); - + /* Link the private data with the MTD structure */ h1910_nand_mtd->priv = this; - + /* * Enable VPEN */ GPSR(37) = GPIO_bit(37); - + /* insert callbacks */ this->IO_ADDR_R = nandaddr; this->IO_ADDR_W = nandaddr; @@ -152,7 +152,7 @@ static int __init h1910_init (void) this->chip_delay = 50; this->eccmode = NAND_ECC_SOFT; this->options = NAND_NO_AUTOINCR; - + /* Scan to find existence of the device */ if (nand_scan (h1910_nand_mtd, 1)) { printk(KERN_NOTICE "No NAND device - returning -ENXIO\n"); @@ -160,9 +160,9 @@ static int __init h1910_init (void) iounmap ((void *) nandaddr); return -ENXIO; } - + #ifdef CONFIG_MTD_CMDLINE_PARTS - mtd_parts_nb = parse_cmdline_partitions(h1910_nand_mtd, &mtd_parts, + mtd_parts_nb = parse_cmdline_partitions(h1910_nand_mtd, &mtd_parts, "h1910-nand"); if (mtd_parts_nb > 0) part_type = "command line"; @@ -175,11 +175,11 @@ static int __init h1910_init (void) mtd_parts_nb = NUM_PARTITIONS; part_type = "static"; } - + /* Register the partitions */ printk(KERN_NOTICE "Using %s partition definition\n", part_type); add_mtd_partitions(h1910_nand_mtd, mtd_parts, mtd_parts_nb); - + /* Return happy */ return 0; } @@ -191,7 +191,7 @@ module_init(h1910_init); static void __exit h1910_cleanup (void) { struct nand_chip *this = (struct nand_chip *) &h1910_nand_mtd[1]; - + /* Release resources, unregister device */ nand_release (h1910_nand_mtd); diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 04e54318bc6..5d222460b42 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -5,14 +5,14 @@ * This is the generic MTD driver for NAND flash devices. It should be * capable of working with almost all NAND chips currently available. * Basic support for AG-AND chips is provided. - * + * * Additional technical information is available on * http://www.linux-mtd.infradead.org/tech/nand.html - * + * * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) * 2002 Thomas Gleixner (tglx@linutronix.de) * - * 02-08-2004 tglx: support for strange chips, which cannot auto increment + * 02-08-2004 tglx: support for strange chips, which cannot auto increment * pages on read / read_oob * * 03-17-2004 tglx: Check ready before auto increment check. Simon Bayes @@ -21,7 +21,7 @@ * Make reads over block boundaries work too * * 04-14-2004 tglx: first working version for 2k page size chips - * + * * 05-19-2004 tglx: Basic support for Renesas AG-AND chips * * 09-24-2004 tglx: add support for hardware controllers (e.g. ECC) shared @@ -30,25 +30,27 @@ * * 12-05-2004 dmarlin: add workaround for Renesas AG-AND chips "disturb" issue. * Basically, any block not rewritten may lose data when surrounding blocks - * are rewritten many times. JFFS2 ensures this doesn't happen for blocks + * are rewritten many times. JFFS2 ensures this doesn't happen for blocks * it uses, but the Bad Block Table(s) may not be rewritten. To ensure they * do not lose data, force them to be rewritten when some of the surrounding - * blocks are erased. Rather than tracking a specific nearby block (which - * could itself go bad), use a page address 'mask' to select several blocks + * blocks are erased. Rather than tracking a specific nearby block (which + * could itself go bad), use a page address 'mask' to select several blocks * in the same area, and rewrite the BBT when any of them are erased. * - * 01-03-2005 dmarlin: added support for the device recovery command sequence for Renesas + * 01-03-2005 dmarlin: added support for the device recovery command sequence for Renesas * AG-AND chips. If there was a sudden loss of power during an erase operation, * a "device recovery" operation must be performed when power is restored * to ensure correct operation. * - * 01-20-2005 dmarlin: added support for optional hardware specific callback routine to + * 01-20-2005 dmarlin: added support for optional hardware specific callback routine to * perform extra error status checks on erase and write failures. This required * adding a wrapper function for nand_read_ecc. * + * 08-20-2005 vwool: suspend/resume added + * * Credits: - * David Woodhouse for adding multichip support - * + * David Woodhouse for adding multichip support + * * Aleph One Ltd. and Toby Churchill Ltd. for supporting the * rework for 2K page size chips * @@ -59,7 +61,7 @@ * The AG-AND chips have nice features for speed improvement, * which are not supported yet. Read / program 4 pages in one go. * - * $Id: nand_base.c,v 1.147 2005/07/15 07:18:06 gleixner Exp $ + * $Id: nand_base.c,v 1.150 2005/09/15 13:58:48 vwool Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -103,8 +105,8 @@ static struct nand_oobinfo nand_oob_64 = { .useecc = MTD_NANDECC_AUTOPLACE, .eccbytes = 24, .eccpos = { - 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, + 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63}, .oobfree = { {2, 38} } }; @@ -147,19 +149,19 @@ static void nand_sync (struct mtd_info *mtd); static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf, struct nand_oobinfo *oobsel, int mode); #ifdef CONFIG_MTD_NAND_VERIFY_WRITE -static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages, +static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages, u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode); #else #define nand_verify_pages(...) (0) #endif - -static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state); + +static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state); /** * nand_release_device - [GENERIC] release chip * @mtd: MTD device structure - * - * Deselect, release chip lock and wake up anyone waiting on the device + * + * Deselect, release chip lock and wake up anyone waiting on the device */ static void nand_release_device (struct mtd_info *mtd) { @@ -213,7 +215,7 @@ static void nand_write_byte(struct mtd_info *mtd, u_char byte) * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip * @mtd: MTD device structure * - * Default read function for 16bit buswith with + * Default read function for 16bit buswith with * endianess conversion */ static u_char nand_read_byte16(struct mtd_info *mtd) @@ -240,7 +242,7 @@ static void nand_write_byte16(struct mtd_info *mtd, u_char byte) * nand_read_word - [DEFAULT] read one word from the chip * @mtd: MTD device structure * - * Default read function for 16bit buswith without + * Default read function for 16bit buswith without * endianess conversion */ static u16 nand_read_word(struct mtd_info *mtd) @@ -254,7 +256,7 @@ static u16 nand_read_word(struct mtd_info *mtd) * @mtd: MTD device structure * @word: data word to write * - * Default write function for 16bit buswith without + * Default write function for 16bit buswith without * endianess conversion */ static void nand_write_word(struct mtd_info *mtd, u16 word) @@ -275,7 +277,7 @@ static void nand_select_chip(struct mtd_info *mtd, int chip) struct nand_chip *this = mtd->priv; switch(chip) { case -1: - this->hwcontrol(mtd, NAND_CTL_CLRNCE); + this->hwcontrol(mtd, NAND_CTL_CLRNCE); break; case 0: this->hwcontrol(mtd, NAND_CTL_SETNCE); @@ -304,7 +306,7 @@ static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) } /** - * nand_read_buf - [DEFAULT] read chip data into buffer + * nand_read_buf - [DEFAULT] read chip data into buffer * @mtd: MTD device structure * @buf: buffer to store date * @len: number of bytes to read @@ -321,7 +323,7 @@ static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) } /** - * nand_verify_buf - [DEFAULT] Verify chip data against buffer + * nand_verify_buf - [DEFAULT] Verify chip data against buffer * @mtd: MTD device structure * @buf: buffer containing the data to compare * @len: number of bytes to compare @@ -354,14 +356,14 @@ static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len) struct nand_chip *this = mtd->priv; u16 *p = (u16 *) buf; len >>= 1; - + for (i=0; i<len; i++) writew(p[i], this->IO_ADDR_W); - + } /** - * nand_read_buf16 - [DEFAULT] read chip data into buffer + * nand_read_buf16 - [DEFAULT] read chip data into buffer * @mtd: MTD device structure * @buf: buffer to store date * @len: number of bytes to read @@ -380,7 +382,7 @@ static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len) } /** - * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer + * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer * @mtd: MTD device structure * @buf: buffer containing the data to compare * @len: number of bytes to compare @@ -407,7 +409,7 @@ static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len) * @ofs: offset from device start * @getchip: 0, if the chip is already selected * - * Check, if the block is bad. + * Check, if the block is bad. */ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) { @@ -424,14 +426,14 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) /* Select the NAND device */ this->select_chip(mtd, chipnr); - } else - page = (int) ofs; + } else + page = (int) ofs; if (this->options & NAND_BUSWIDTH_16) { this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page & this->pagemask); bad = cpu_to_le16(this->read_word(mtd)); if (this->badblockpos & 0x1) - bad >>= 1; + bad >>= 8; if ((bad & 0xFF) != 0xff) res = 1; } else { @@ -439,12 +441,12 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) if (this->read_byte(mtd) != 0xff) res = 1; } - + if (getchip) { /* Deselect and wake up anyone waiting on the device */ nand_release_device(mtd); - } - + } + return res; } @@ -462,7 +464,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) u_char buf[2] = {0, 0}; size_t retlen; int block; - + /* Get block number */ block = ((int) ofs) >> this->bbt_erase_shift; if (this->bbt) @@ -471,25 +473,25 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) /* Do we have a flash based bad block table ? */ if (this->options & NAND_USE_FLASH_BBT) return nand_update_bbt (mtd, ofs); - + /* We write two bytes, so we dont have to mess with 16 bit access */ ofs += mtd->oobsize + (this->badblockpos & ~0x01); return nand_write_oob (mtd, ofs , 2, &retlen, buf); } -/** +/** * nand_check_wp - [GENERIC] check if the chip is write protected * @mtd: MTD device structure - * Check, if the device is write protected + * Check, if the device is write protected * - * The function expects, that the device is already selected + * The function expects, that the device is already selected */ static int nand_check_wp (struct mtd_info *mtd) { struct nand_chip *this = mtd->priv; /* Check the WP bit */ this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1); - return (this->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1; + return (this->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1; } /** @@ -505,15 +507,15 @@ static int nand_check_wp (struct mtd_info *mtd) static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt) { struct nand_chip *this = mtd->priv; - + if (!this->bbt) return this->block_bad(mtd, ofs, getchip); - + /* Return info from the table */ return nand_isbad_bbt (mtd, ofs, allowbbt); } -/* +/* * Wait for the ready pin, after a command * The timeout is catched later. */ @@ -527,7 +529,7 @@ static void nand_wait_ready(struct mtd_info *mtd) if (this->dev_ready(mtd)) return; touch_softlockup_watchdog(); - } while (time_before(jiffies, timeo)); + } while (time_before(jiffies, timeo)); } /** @@ -590,13 +592,13 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in /* Latch in address */ this->hwcontrol(mtd, NAND_CTL_CLRALE); } - - /* - * program and erase have their own busy handlers + + /* + * program and erase have their own busy handlers * status and sequential in needs no delay */ switch (command) { - + case NAND_CMD_PAGEPROG: case NAND_CMD_ERASE1: case NAND_CMD_ERASE2: @@ -605,7 +607,7 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in return; case NAND_CMD_RESET: - if (this->dev_ready) + if (this->dev_ready) break; udelay(this->chip_delay); this->hwcontrol(mtd, NAND_CTL_SETCLE); @@ -614,16 +616,16 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in while ( !(this->read_byte(mtd) & NAND_STATUS_READY)); return; - /* This applies to read commands */ + /* This applies to read commands */ default: - /* + /* * If we don't have access to the busy pin, we apply the given * command delay */ if (!this->dev_ready) { udelay (this->chip_delay); return; - } + } } /* Apply this short delay always to ensure that we do wait tWB in * any case on any machine. */ @@ -653,8 +655,8 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, column += mtd->oobblock; command = NAND_CMD_READ0; } - - + + /* Begin command latch cycle */ this->hwcontrol(mtd, NAND_CTL_SETCLE); /* Write out the command to the device. */ @@ -672,7 +674,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, column >>= 1; this->write_byte(mtd, column & 0xff); this->write_byte(mtd, column >> 8); - } + } if (page_addr != -1) { this->write_byte(mtd, (unsigned char) (page_addr & 0xff)); this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff)); @@ -683,13 +685,13 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, /* Latch in address */ this->hwcontrol(mtd, NAND_CTL_CLRALE); } - - /* - * program and erase have their own busy handlers + + /* + * program and erase have their own busy handlers * status, sequential in, and deplete1 need no delay */ switch (command) { - + case NAND_CMD_CACHEDPROG: case NAND_CMD_PAGEPROG: case NAND_CMD_ERASE1: @@ -699,7 +701,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, case NAND_CMD_DEPLETE1: return; - /* + /* * read error status commands require only a short delay */ case NAND_CMD_STATUS_ERROR: @@ -711,7 +713,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, return; case NAND_CMD_RESET: - if (this->dev_ready) + if (this->dev_ready) break; udelay(this->chip_delay); this->hwcontrol(mtd, NAND_CTL_SETCLE); @@ -728,17 +730,17 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, /* End command latch cycle */ this->hwcontrol(mtd, NAND_CTL_CLRCLE); /* Fall through into ready check */ - - /* This applies to read commands */ + + /* This applies to read commands */ default: - /* + /* * If we don't have access to the busy pin, we apply the given * command delay */ if (!this->dev_ready) { udelay (this->chip_delay); return; - } + } } /* Apply this short delay always to ensure that we do wait tWB in @@ -752,11 +754,11 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, * nand_get_device - [GENERIC] Get chip for selected access * @this: the nand chip descriptor * @mtd: MTD device structure - * @new_state: the state which is requested + * @new_state: the state which is requested * * Get the device and lock it for exclusive access */ -static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state) +static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state) { struct nand_chip *active; spinlock_t *lock; @@ -779,7 +781,11 @@ retry: if (active == this && this->state == FL_READY) { this->state = new_state; spin_unlock(lock); - return; + return 0; + } + if (new_state == FL_PM_SUSPENDED) { + spin_unlock(lock); + return (this->state == FL_PM_SUSPENDED) ? 0 : -EAGAIN; } set_current_state(TASK_UNINTERRUPTIBLE); add_wait_queue(wq, &wait); @@ -796,7 +802,7 @@ retry: * @state: state to select the max. timeout value * * Wait for command done. This applies to erase and program only - * Erase can take up to 400ms and program up to 20ms according to + * Erase can take up to 400ms and program up to 20ms according to * general NAND and SmartMedia specs * */ @@ -805,7 +811,7 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state) unsigned long timeo = jiffies; int status; - + if (state == FL_ERASING) timeo += (HZ * 400) / 1000; else @@ -817,17 +823,17 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state) if ((state == FL_ERASING) && (this->options & NAND_IS_AND)) this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1); - else + else this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1); - while (time_before(jiffies, timeo)) { + while (time_before(jiffies, timeo)) { /* Check, if we were interrupted */ if (this->state != state) return 0; if (this->dev_ready) { if (this->dev_ready(mtd)) - break; + break; } else { if (this->read_byte(mtd) & NAND_STATUS_READY) break; @@ -853,7 +859,7 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state) * * Cached programming is not supported yet. */ -static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, +static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf, struct nand_oobinfo *oobsel, int cached) { int i, status; @@ -862,10 +868,10 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa int *oob_config = oobsel->eccpos; int datidx = 0, eccidx = 0, eccsteps = this->eccsteps; int eccbytes = 0; - + /* FIXME: Enable cached programming */ cached = 0; - + /* Send command to begin auto page programming */ this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page); @@ -876,7 +882,7 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n"); this->write_buf(mtd, this->data_poi, mtd->oobblock); break; - + /* Software ecc 3/256, write all */ case NAND_ECC_SOFT: for (; eccsteps; eccsteps--) { @@ -905,11 +911,11 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa } break; } - + /* Write out OOB data */ if (this->options & NAND_HWECC_SYNDROME) this->write_buf(mtd, &oob_buf[oobsel->eccbytes], mtd->oobsize - oobsel->eccbytes); - else + else this->write_buf(mtd, oob_buf, mtd->oobsize); /* Send command to actually program the data */ @@ -934,7 +940,7 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa /* wait until cache is ready*/ // status = this->waitfunc (mtd, this, FL_CACHEDRPG); } - return 0; + return 0; } #ifdef CONFIG_MTD_NAND_VERIFY_WRITE @@ -950,19 +956,19 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa * @oobmode: 1 = full buffer verify, 0 = ecc only * * The NAND device assumes that it is always writing to a cleanly erased page. - * Hence, it performs its internal write verification only on bits that + * Hence, it performs its internal write verification only on bits that * transitioned from 1 to 0. The device does NOT verify the whole page on a - * byte by byte basis. It is possible that the page was not completely erased - * or the page is becoming unusable due to wear. The read with ECC would catch - * the error later when the ECC page check fails, but we would rather catch + * byte by byte basis. It is possible that the page was not completely erased + * or the page is becoming unusable due to wear. The read with ECC would catch + * the error later when the ECC page check fails, but we would rather catch * it early in the page write stage. Better to write no data than invalid data. */ -static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages, +static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages, u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode) { int i, j, datidx = 0, oobofs = 0, res = -EIO; int eccsteps = this->eccsteps; - int hweccbytes; + int hweccbytes; u_char oobdata[64]; hweccbytes = (this->options & NAND_HWECC_SYNDROME) ? (oobsel->eccbytes / eccsteps) : 0; @@ -1002,7 +1008,7 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int if (oobsel->useecc != MTD_NANDECC_OFF && !hweccbytes) { int ecccnt = oobsel->eccbytes; - + for (i = 0; i < ecccnt; i++) { int idx = oobsel->eccpos[i]; if (oobdata[idx] != oob_buf[oobofs + idx] ) { @@ -1012,20 +1018,20 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int goto out; } } - } + } } oobofs += mtd->oobsize - hweccbytes * eccsteps; page++; numpages--; - /* Apply delay or wait for ready/busy pin + /* Apply delay or wait for ready/busy pin * Do this before the AUTOINCR check, so no problems * arise if a chip which does auto increment * is marked as NOAUTOINCR by the board driver. * Do this also before returning, so the chip is * ready for the next command. */ - if (!this->dev_ready) + if (!this->dev_ready) udelay (this->chip_delay); else nand_wait_ready(mtd); @@ -1033,17 +1039,17 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int /* All done, return happy */ if (!numpages) return 0; - - - /* Check, if the chip supports auto page increment */ + + + /* Check, if the chip supports auto page increment */ if (!NAND_CANAUTOINCR(this)) this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page); } - /* + /* * Terminate the read command. We come here in case of an error * So we must issue a reset command. */ -out: +out: this->cmdfunc (mtd, NAND_CMD_RESET, -1, -1); return res; } @@ -1105,7 +1111,7 @@ static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, * NAND read with ECC */ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, - size_t * retlen, u_char * buf, u_char * oob_buf, + size_t * retlen, u_char * buf, u_char * oob_buf, struct nand_oobinfo *oobsel, int flags) { @@ -1139,7 +1145,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, /* Autoplace of oob data ? Use the default placement scheme */ if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) oobsel = this->autooob; - + eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE; oob_config = oobsel->eccpos; @@ -1157,28 +1163,28 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, end = mtd->oobblock; ecc = this->eccsize; eccbytes = this->eccbytes; - + if ((eccmode == NAND_ECC_NONE) || (this->options & NAND_HWECC_SYNDROME)) compareecc = 0; oobreadlen = mtd->oobsize; - if (this->options & NAND_HWECC_SYNDROME) + if (this->options & NAND_HWECC_SYNDROME) oobreadlen -= oobsel->eccbytes; /* Loop until all data read */ while (read < len) { - + int aligned = (!col && (len - read) >= end); - /* + /* * If the read is not page aligned, we have to read into data buffer * due to ecc, else we read into return buffer direct */ if (aligned) data_poi = &buf[read]; - else + else data_poi = this->data_buf; - - /* Check, if we have this page in the buffer + + /* Check, if we have this page in the buffer * * FIXME: Make it work when we must provide oob data too, * check the usage of data_buf oob field @@ -1194,7 +1200,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, if (sndcmd) { this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page); sndcmd = 0; - } + } /* get oob area, if we have no oob buffer from fs-driver */ if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE || @@ -1202,7 +1208,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, oob_data = &this->data_buf[end]; eccsteps = this->eccsteps; - + switch (eccmode) { case NAND_ECC_NONE: { /* No ECC, Read in a page */ static unsigned long lastwhinge = 0; @@ -1213,12 +1219,12 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, this->read_buf(mtd, data_poi, end); break; } - + case NAND_ECC_SOFT: /* Software ECC 3/256: Read in a page + oob data */ this->read_buf(mtd, data_poi, end); - for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc) + for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc) this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]); - break; + break; default: for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=eccbytes, datidx += ecc) { @@ -1237,15 +1243,15 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, * does the error correction on the fly */ ecc_status = this->correct_data(mtd, &data_poi[datidx], &oob_data[i], &ecc_code[i]); if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) { - DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " + DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x on chip %d\n", page, chipnr); ecc_failed++; } } else { this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]); - } + } } - break; + break; } /* read oobdata */ @@ -1253,8 +1259,8 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, /* Skip ECC check, if not requested (ECC_NONE or HW_ECC with syndromes) */ if (!compareecc) - goto readoob; - + goto readoob; + /* Pick the ECC bytes out of the oob data */ for (j = 0; j < oobsel->eccbytes; j++) ecc_code[j] = oob_data[oob_config[j]]; @@ -1262,24 +1268,24 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, /* correct data, if neccecary */ for (i = 0, j = 0, datidx = 0; i < this->eccsteps; i++, datidx += ecc) { ecc_status = this->correct_data(mtd, &data_poi[datidx], &ecc_code[j], &ecc_calc[j]); - + /* Get next chunk of ecc bytes */ j += eccbytes; - - /* Check, if we have a fs supplied oob-buffer, + + /* Check, if we have a fs supplied oob-buffer, * This is the legacy mode. Used by YAFFS1 * Should go away some day */ - if (oob_buf && oobsel->useecc == MTD_NANDECC_PLACE) { + if (oob_buf && oobsel->useecc == MTD_NANDECC_PLACE) { int *p = (int *)(&oob_data[mtd->oobsize]); p[i] = ecc_status; } - - if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) { + + if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) { DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page); ecc_failed++; } - } + } readoob: /* check, if we have a fs supplied oob-buffer */ @@ -1305,25 +1311,25 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, } readdata: /* Partial page read, transfer data into fs buffer */ - if (!aligned) { + if (!aligned) { for (j = col; j < end && read < len; j++) buf[read++] = data_poi[j]; - this->pagebuf = realpage; - } else + this->pagebuf = realpage; + } else read += mtd->oobblock; - /* Apply delay or wait for ready/busy pin + /* Apply delay or wait for ready/busy pin * Do this before the AUTOINCR check, so no problems * arise if a chip which does auto increment * is marked as NOAUTOINCR by the board driver. */ - if (!this->dev_ready) + if (!this->dev_ready) udelay (this->chip_delay); else nand_wait_ready(mtd); - + if (read == len) - break; + break; /* For subsequent reads align to page boundary. */ col = 0; @@ -1337,11 +1343,11 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, this->select_chip(mtd, -1); this->select_chip(mtd, chipnr); } - /* Check, if the chip supports auto page increment - * or if we have hit a block boundary. - */ + /* Check, if the chip supports auto page increment + * or if we have hit a block boundary. + */ if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) - sndcmd = 1; + sndcmd = 1; } /* Deselect and wake up anyone waiting on the device */ @@ -1378,7 +1384,7 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t /* Shift to get page */ page = (int)(from >> this->page_shift); chipnr = (int)(from >> this->chip_shift); - + /* Mask to get column */ col = from & (mtd->oobsize - 1); @@ -1400,7 +1406,7 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t /* Send the read command */ this->cmdfunc (mtd, NAND_CMD_READOOB, col, page & this->pagemask); - /* + /* * Read the data, if we read more than one page * oob data, let the device transfer the data ! */ @@ -1422,20 +1428,20 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t this->select_chip(mtd, -1); this->select_chip(mtd, chipnr); } - - /* Apply delay or wait for ready/busy pin + + /* Apply delay or wait for ready/busy pin * Do this before the AUTOINCR check, so no problems * arise if a chip which does auto increment * is marked as NOAUTOINCR by the board driver. */ - if (!this->dev_ready) + if (!this->dev_ready) udelay (this->chip_delay); else nand_wait_ready(mtd); - /* Check, if the chip supports auto page increment - * or if we have hit a block boundary. - */ + /* Check, if the chip supports auto page increment + * or if we have hit a block boundary. + */ if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) { /* For subsequent page reads set offset to 0 */ this->cmdfunc (mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask); @@ -1481,27 +1487,27 @@ int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, nand_get_device (this, mtd , FL_READING); this->select_chip (mtd, chip); - + /* Add requested oob length */ len += ooblen; - + while (len) { if (sndcmd) this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask); - sndcmd = 0; + sndcmd = 0; this->read_buf (mtd, &buf[cnt], pagesize); len -= pagesize; cnt += pagesize; page++; - - if (!this->dev_ready) + + if (!this->dev_ready) udelay (this->chip_delay); else nand_wait_ready(mtd); - - /* Check, if the chip supports auto page increment */ + + /* Check, if the chip supports auto page increment */ if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) sndcmd = 1; } @@ -1512,8 +1518,8 @@ int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, } -/** - * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer +/** + * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer * @mtd: MTD device structure * @fsbuf: buffer given by fs driver * @oobsel: out of band selection structre @@ -1542,20 +1548,20 @@ static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct int i, len, ofs; /* Zero copy fs supplied buffer */ - if (fsbuf && !autoplace) + if (fsbuf && !autoplace) return fsbuf; /* Check, if the buffer must be filled with ff again */ - if (this->oobdirty) { - memset (this->oob_buf, 0xff, + if (this->oobdirty) { + memset (this->oob_buf, 0xff, mtd->oobsize << (this->phys_erase_shift - this->page_shift)); this->oobdirty = 0; - } - + } + /* If we have no autoplacement or no fs buffer use the internal one */ if (!autoplace || !fsbuf) return this->oob_buf; - + /* Walk through the pages and place the data */ this->oobdirty = 1; ofs = 0; @@ -1589,7 +1595,7 @@ static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * ret { return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL)); } - + /** * nand_write_ecc - [MTD Interface] NAND write with ECC * @mtd: MTD device structure @@ -1622,7 +1628,7 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, return -EINVAL; } - /* reject writes, which are not page aligned */ + /* reject writes, which are not page aligned */ if (NOTALIGNED (to) || NOTALIGNED(len)) { printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n"); return -EINVAL; @@ -1641,14 +1647,14 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, goto out; /* if oobsel is NULL, use chip defaults */ - if (oobsel == NULL) - oobsel = &mtd->oobinfo; - + if (oobsel == NULL) + oobsel = &mtd->oobinfo; + /* Autoplace of oob data ? Use the default placement scheme */ if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) { oobsel = this->autooob; autoplace = 1; - } + } if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR) autoplace = 1; @@ -1656,9 +1662,9 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, totalpages = len >> this->page_shift; page = (int) (to >> this->page_shift); /* Invalidate the page cache, if we write to the cached page */ - if (page <= this->pagebuf && this->pagebuf < (page + totalpages)) + if (page <= this->pagebuf && this->pagebuf < (page + totalpages)) this->pagebuf = -1; - + /* Set it relative to chip */ page &= this->pagemask; startpage = page; @@ -1680,14 +1686,14 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, if (ret) { DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: write_page failed %d\n", ret); goto out; - } + } /* Next oob page */ oob += mtd->oobsize; /* Update written bytes count */ written += mtd->oobblock; - if (written == len) + if (written == len) goto cmp; - + /* Increment page address */ page++; @@ -1698,13 +1704,13 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, if (!(page & (ppblock - 1))){ int ofs; this->data_poi = bufstart; - ret = nand_verify_pages (mtd, this, startpage, + ret = nand_verify_pages (mtd, this, startpage, page - startpage, oobbuf, oobsel, chipnr, (eccbuf != NULL)); if (ret) { DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret); goto out; - } + } *retlen = written; ofs = autoplace ? mtd->oobavail : mtd->oobsize; @@ -1714,8 +1720,9 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, numpages = min (totalpages, ppblock); page &= this->pagemask; startpage = page; - oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel, + oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel, autoplace, numpages); + oob = 0; /* Check, if we cross a chip boundary */ if (!page) { chipnr++; @@ -1731,7 +1738,7 @@ cmp: oobbuf, oobsel, chipnr, (eccbuf != NULL)); if (!ret) *retlen = written; - else + else DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret); out: @@ -1791,7 +1798,7 @@ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * /* Check, if it is write protected */ if (nand_check_wp(mtd)) goto out; - + /* Invalidate the page cache, if we write to the cached page */ if (page == this->pagebuf) this->pagebuf = -1; @@ -1854,10 +1861,10 @@ out: * * NAND write with kvec. This just calls the ecc function */ -static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, +static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t * retlen) { - return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL)); + return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL)); } /** @@ -1872,7 +1879,7 @@ static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned * * NAND write with iovec with ecc */ -static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, +static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel) { int i, page, len, total_len, ret = -EIO, written = 0, chipnr; @@ -1898,7 +1905,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig return -EINVAL; } - /* reject writes, which are not page aligned */ + /* reject writes, which are not page aligned */ if (NOTALIGNED (to) || NOTALIGNED(total_len)) { printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n"); return -EINVAL; @@ -1917,21 +1924,21 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig goto out; /* if oobsel is NULL, use chip defaults */ - if (oobsel == NULL) - oobsel = &mtd->oobinfo; + if (oobsel == NULL) + oobsel = &mtd->oobinfo; /* Autoplace of oob data ? Use the default placement scheme */ if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) { oobsel = this->autooob; autoplace = 1; - } + } if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR) autoplace = 1; /* Setup start page */ page = (int) (to >> this->page_shift); /* Invalidate the page cache, if we write to the cached page */ - if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift)) + if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift)) this->pagebuf = -1; startpage = page & this->pagemask; @@ -1955,10 +1962,10 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig oob = 0; for (i = 1; i <= numpages; i++) { /* Write one page. If this is the last page to write - * then use the real pageprogram command, else select + * then use the real pageprogram command, else select * cached programming if supported by the chip. */ - ret = nand_write_page (mtd, this, page & this->pagemask, + ret = nand_write_page (mtd, this, page & this->pagemask, &oobbuf[oob], oobsel, i != numpages); if (ret) goto out; @@ -1974,12 +1981,12 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig count--; } } else { - /* We must use the internal buffer, read data out of each + /* We must use the internal buffer, read data out of each * tuple until we have a full page to write */ int cnt = 0; while (cnt < mtd->oobblock) { - if (vecs->iov_base != NULL && vecs->iov_len) + if (vecs->iov_base != NULL && vecs->iov_len) this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++]; /* Check, if we have to switch to the next tuple */ if (len >= (int) vecs->iov_len) { @@ -1988,10 +1995,10 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig count--; } } - this->pagebuf = page; - this->data_poi = this->data_buf; + this->pagebuf = page; + this->data_poi = this->data_buf; bufstart = this->data_poi; - numpages = 1; + numpages = 1; oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages); ret = nand_write_page (mtd, this, page & this->pagemask, oobbuf, oobsel, 0); @@ -2004,7 +2011,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0); if (ret) goto out; - + written += mtd->oobblock * numpages; /* All done ? */ if (!count) @@ -2072,7 +2079,7 @@ static int nand_erase (struct mtd_info *mtd, struct erase_info *instr) { return nand_erase_nand (mtd, instr, 0); } - + #define BBT_PAGE_MASK 0xffffff3f /** * nand_erase_intern - [NAND Interface] erase block(s) @@ -2154,14 +2161,14 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb instr->state = MTD_ERASE_FAILED; goto erase_exit; } - - /* Invalidate the page cache, if we erase the block which contains + + /* Invalidate the page cache, if we erase the block which contains the current cached page */ if (page <= this->pagebuf && this->pagebuf < (page + pages_per_block)) this->pagebuf = -1; this->erase_cmd (mtd, page & this->pagemask); - + status = this->waitfunc (mtd, this, FL_ERASING); /* See if operation failed and additional status checks are available */ @@ -2179,12 +2186,12 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb /* if BBT requires refresh, set the BBT rewrite flag to the page being erased */ if (this->options & BBT_AUTO_REFRESH) { - if (((page & BBT_PAGE_MASK) == bbt_masked_page) && + if (((page & BBT_PAGE_MASK) == bbt_masked_page) && (page != this->bbt_td->pages[chipnr])) { rewrite_bbt[chipnr] = (page << this->page_shift); } } - + /* Increment page address and decrement length */ len -= (1 << this->phys_erase_shift); page += pages_per_block; @@ -2195,7 +2202,7 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb this->select_chip(mtd, -1); this->select_chip(mtd, chipnr); - /* if BBT requires refresh and BBT-PERCHIP, + /* if BBT requires refresh and BBT-PERCHIP, * set the BBT page mask to see if this BBT should be rewritten */ if ((this->options & BBT_AUTO_REFRESH) && (this->bbt_td->options & NAND_BBT_PERCHIP)) { bbt_masked_page = this->bbt_td->pages[chipnr] & BBT_PAGE_MASK; @@ -2220,7 +2227,7 @@ erase_exit: for (chipnr = 0; chipnr < this->numchips; chipnr++) { if (rewrite_bbt[chipnr]) { /* update the BBT for chip */ - DEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt (%d:0x%0x 0x%0x)\n", + DEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt (%d:0x%0x 0x%0x)\n", chipnr, rewrite_bbt[chipnr], this->bbt_td->pages[chipnr]); nand_update_bbt (mtd, rewrite_bbt[chipnr]); } @@ -2258,9 +2265,9 @@ static void nand_sync (struct mtd_info *mtd) static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs) { /* Check for invalid offset */ - if (ofs > mtd->size) + if (ofs > mtd->size) return -EINVAL; - + return nand_block_checkbad (mtd, ofs, 1, 0); } @@ -2285,6 +2292,34 @@ static int nand_block_markbad (struct mtd_info *mtd, loff_t ofs) } /** + * nand_suspend - [MTD Interface] Suspend the NAND flash + * @mtd: MTD device structure + */ +static int nand_suspend(struct mtd_info *mtd) +{ + struct nand_chip *this = mtd->priv; + + return nand_get_device (this, mtd, FL_PM_SUSPENDED); +} + +/** + * nand_resume - [MTD Interface] Resume the NAND flash + * @mtd: MTD device structure + */ +static void nand_resume(struct mtd_info *mtd) +{ + struct nand_chip *this = mtd->priv; + + if (this->state == FL_PM_SUSPENDED) + nand_release_device(mtd); + else + printk(KERN_ERR "resume() called for the chip which is not " + "in suspended state\n"); + +} + + +/** * nand_scan - [NAND Interface] Scan for the NAND device * @mtd: MTD device structure * @maxchips: Number of chips to scan for @@ -2351,13 +2386,13 @@ int nand_scan (struct mtd_info *mtd, int maxchips) /* Print and store flash device information */ for (i = 0; nand_flash_ids[i].name != NULL; i++) { - - if (nand_dev_id != nand_flash_ids[i].id) + + if (nand_dev_id != nand_flash_ids[i].id) continue; if (!mtd->name) mtd->name = nand_flash_ids[i].name; this->chipsize = nand_flash_ids[i].chipsize << 20; - + /* New devices have all the information in additional id bytes */ if (!nand_flash_ids[i].pagesize) { int extid; @@ -2369,14 +2404,14 @@ int nand_scan (struct mtd_info *mtd, int maxchips) mtd->oobblock = 1024 << (extid & 0x3); extid >>= 2; /* Calc oobsize */ - mtd->oobsize = (8 << (extid & 0x03)) * (mtd->oobblock / 512); + mtd->oobsize = (8 << (extid & 0x01)) * (mtd->oobblock >> 9); extid >>= 2; /* Calc blocksize. Blocksize is multiples of 64KiB */ mtd->erasesize = (64 * 1024) << (extid & 0x03); extid >>= 2; /* Get buswidth information */ busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0; - + } else { /* Old devices have this data hardcoded in the * device id table */ @@ -2396,23 +2431,23 @@ int nand_scan (struct mtd_info *mtd, int maxchips) * this correct ! */ if (busw != (this->options & NAND_BUSWIDTH_16)) { printk (KERN_INFO "NAND device: Manufacturer ID:" - " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id, + " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id, nand_manuf_ids[maf_id].name , mtd->name); - printk (KERN_WARNING - "NAND bus width %d instead %d bit\n", + printk (KERN_WARNING + "NAND bus width %d instead %d bit\n", (this->options & NAND_BUSWIDTH_16) ? 16 : 8, busw ? 16 : 8); this->select_chip(mtd, -1); - return 1; + return 1; } - - /* Calculate the address shift from the page size */ + + /* Calculate the address shift from the page size */ this->page_shift = ffs(mtd->oobblock) - 1; this->bbt_erase_shift = this->phys_erase_shift = ffs(mtd->erasesize) - 1; this->chip_shift = ffs(this->chipsize) - 1; /* Set the bad block position */ - this->badblockpos = mtd->oobblock > 512 ? + this->badblockpos = mtd->oobblock > 512 ? NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS; /* Get chip options, preserve non chip based options */ @@ -2422,10 +2457,10 @@ int nand_scan (struct mtd_info *mtd, int maxchips) this->options |= NAND_NO_AUTOINCR; /* Check if this is a not a samsung device. Do not clear the options * for chips which are not having an extended id. - */ + */ if (nand_maf_id != NAND_MFR_SAMSUNG && !nand_flash_ids[i].pagesize) this->options &= ~NAND_SAMSUNG_LP_OPTIONS; - + /* Check for AND chips with 4 page planes */ if (this->options & NAND_4PAGE_ARRAY) this->erase_cmd = multi_erase_cmd; @@ -2435,9 +2470,9 @@ int nand_scan (struct mtd_info *mtd, int maxchips) /* Do not replace user supplied command function ! */ if (mtd->oobblock > 512 && this->cmdfunc == nand_command) this->cmdfunc = nand_command_lp; - + printk (KERN_INFO "NAND device: Manufacturer ID:" - " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id, + " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id, nand_manuf_ids[maf_id].name , nand_flash_ids[i].name); break; } @@ -2461,7 +2496,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips) } if (i > 1) printk(KERN_INFO "%d NAND chips detected\n", i); - + /* Allocate buffers, if neccecary */ if (!this->oob_buf) { size_t len; @@ -2473,7 +2508,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips) } this->options |= NAND_OOBBUF_ALLOC; } - + if (!this->data_buf) { size_t len; len = mtd->oobblock + mtd->oobsize; @@ -2500,7 +2535,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips) if (!this->autooob) { /* Select the appropriate default oob placement scheme for * placement agnostic filesystems */ - switch (mtd->oobsize) { + switch (mtd->oobsize) { case 8: this->autooob = &nand_oob_8; break; @@ -2516,19 +2551,19 @@ int nand_scan (struct mtd_info *mtd, int maxchips) BUG(); } } - + /* The number of bytes available for the filesystem to place fs dependend * oob data */ mtd->oobavail = 0; for (i = 0; this->autooob->oobfree[i][1]; i++) mtd->oobavail += this->autooob->oobfree[i][1]; - /* + /* * check ECC mode, default to software * if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize - * fallback to software ECC + * fallback to software ECC */ - this->eccsize = 256; /* set default eccsize */ + this->eccsize = 256; /* set default eccsize */ this->eccbytes = 3; switch (this->eccmode) { @@ -2543,56 +2578,56 @@ int nand_scan (struct mtd_info *mtd, int maxchips) this->eccsize = 2048; break; - case NAND_ECC_HW3_512: - case NAND_ECC_HW6_512: - case NAND_ECC_HW8_512: + case NAND_ECC_HW3_512: + case NAND_ECC_HW6_512: + case NAND_ECC_HW8_512: if (mtd->oobblock == 256) { printk (KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n"); this->eccmode = NAND_ECC_SOFT; this->calculate_ecc = nand_calculate_ecc; this->correct_data = nand_correct_data; - } else + } else this->eccsize = 512; /* set eccsize to 512 */ break; - + case NAND_ECC_HW3_256: break; - - case NAND_ECC_NONE: + + case NAND_ECC_NONE: printk (KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n"); this->eccmode = NAND_ECC_NONE; break; - case NAND_ECC_SOFT: + case NAND_ECC_SOFT: this->calculate_ecc = nand_calculate_ecc; this->correct_data = nand_correct_data; break; default: printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode); - BUG(); - } + BUG(); + } - /* Check hardware ecc function availability and adjust number of ecc bytes per + /* Check hardware ecc function availability and adjust number of ecc bytes per * calculation step */ switch (this->eccmode) { case NAND_ECC_HW12_2048: this->eccbytes += 4; - case NAND_ECC_HW8_512: + case NAND_ECC_HW8_512: this->eccbytes += 2; - case NAND_ECC_HW6_512: + case NAND_ECC_HW6_512: this->eccbytes += 3; - case NAND_ECC_HW3_512: + case NAND_ECC_HW3_512: case NAND_ECC_HW3_256: if (this->calculate_ecc && this->correct_data && this->enable_hwecc) break; printk (KERN_WARNING "No ECC functions supplied, Hardware ECC not possible\n"); - BUG(); + BUG(); } - + mtd->eccsize = this->eccsize; - + /* Set the number of read / write steps for one page to ensure ECC generation */ switch (this->eccmode) { case NAND_ECC_HW12_2048: @@ -2604,15 +2639,15 @@ int nand_scan (struct mtd_info *mtd, int maxchips) this->eccsteps = mtd->oobblock / 512; break; case NAND_ECC_HW3_256: - case NAND_ECC_SOFT: + case NAND_ECC_SOFT: this->eccsteps = mtd->oobblock / 256; break; - - case NAND_ECC_NONE: + + case NAND_ECC_NONE: this->eccsteps = 1; break; } - + /* Initialize state, waitqueue and spinlock */ this->state = FL_READY; init_waitqueue_head (&this->wq); @@ -2643,8 +2678,8 @@ int nand_scan (struct mtd_info *mtd, int maxchips) mtd->sync = nand_sync; mtd->lock = NULL; mtd->unlock = NULL; - mtd->suspend = NULL; - mtd->resume = NULL; + mtd->suspend = nand_suspend; + mtd->resume = nand_resume; mtd->block_isbad = nand_block_isbad; mtd->block_markbad = nand_block_markbad; @@ -2652,7 +2687,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips) memcpy(&mtd->oobinfo, this->autooob, sizeof(mtd->oobinfo)); mtd->owner = THIS_MODULE; - + /* Check, if we should skip the bad block table scan */ if (this->options & NAND_SKIP_BBTSCAN) return 0; @@ -2662,7 +2697,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips) } /** - * nand_release - [NAND Interface] Free resources held by the NAND device + * nand_release - [NAND Interface] Free resources held by the NAND device * @mtd: MTD device structure */ void nand_release (struct mtd_info *mtd) @@ -2676,9 +2711,8 @@ void nand_release (struct mtd_info *mtd) /* Deregister the device */ del_mtd_device (mtd); - /* Free bad block table memory, if allocated */ - if (this->bbt) - kfree (this->bbt); + /* Free bad block table memory */ + kfree (this->bbt); /* Buffer allocated by nand_scan ? */ if (this->options & NAND_OOBBUF_ALLOC) kfree (this->oob_buf); diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 7535ef53685..ca286999fe0 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -3,10 +3,10 @@ * * Overview: * Bad block table support for the NAND driver - * + * * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de) * - * $Id: nand_bbt.c,v 1.35 2005/07/15 13:53:47 gleixner Exp $ + * $Id: nand_bbt.c,v 1.36 2005/11/07 11:14:30 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -14,23 +14,23 @@ * * Description: * - * When nand_scan_bbt is called, then it tries to find the bad block table - * depending on the options in the bbt descriptor(s). If a bbt is found - * then the contents are read and the memory based bbt is created. If a + * When nand_scan_bbt is called, then it tries to find the bad block table + * depending on the options in the bbt descriptor(s). If a bbt is found + * then the contents are read and the memory based bbt is created. If a * mirrored bbt is selected then the mirror is searched too and the - * versions are compared. If the mirror has a greater version number + * versions are compared. If the mirror has a greater version number * than the mirror bbt is used to build the memory based bbt. * If the tables are not versioned, then we "or" the bad block information. - * If one of the bbt's is out of date or does not exist it is (re)created. - * If no bbt exists at all then the device is scanned for factory marked - * good / bad blocks and the bad block tables are created. + * If one of the bbt's is out of date or does not exist it is (re)created. + * If no bbt exists at all then the device is scanned for factory marked + * good / bad blocks and the bad block tables are created. * - * For manufacturer created bbts like the one found on M-SYS DOC devices + * For manufacturer created bbts like the one found on M-SYS DOC devices * the bbt is searched and read but never created * - * The autogenerated bad block table is located in the last good blocks - * of the device. The table is mirrored, so it can be updated eventually. - * The table is marked in the oob area with an ident pattern and a version + * The autogenerated bad block table is located in the last good blocks + * of the device. The table is mirrored, so it can be updated eventually. + * The table is marked in the oob area with an ident pattern and a version * number which indicates which of both tables is more up to date. * * The table uses 2 bits per block @@ -43,13 +43,13 @@ * 01b: block is marked bad due to wear * 10b: block is reserved (to protect the bbt area) * 11b: block is factory marked bad - * + * * Multichip devices like DOC store the bad block info per floor. * * Following assumptions are made: * - bbts start at a page boundary, if autolocated on a block boundary * - the space neccecary for a bbt in FLASH does not exceed a block boundary - * + * */ #include <linux/slab.h> @@ -62,7 +62,7 @@ #include <linux/delay.h> -/** +/** * check_pattern - [GENERIC] check if a pattern is in the buffer * @buf: the buffer to search * @len: the length of buffer to search @@ -86,9 +86,9 @@ static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_des if (p[i] != 0xff) return -1; } - } + } p += end; - + /* Compare the pattern */ for (i = 0; i < td->len; i++) { if (p[i] != td->pattern[i]) @@ -106,13 +106,13 @@ static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_des return 0; } -/** +/** * check_short_pattern - [GENERIC] check if a pattern is in the buffer * @buf: the buffer to search * @td: search pattern descriptor * * Check for a pattern at the given place. Used to search bad block - * tables and good / bad block identifiers. Same as check_pattern, but + * tables and good / bad block identifiers. Same as check_pattern, but * no optional empty check * */ @@ -142,7 +142,7 @@ static int check_short_pattern (uint8_t *buf, struct nand_bbt_descr *td) * Read the bad block table starting from page. * */ -static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num, +static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num, int bits, int offs, int reserved_block_code) { int res, i, j, act = 0; @@ -153,7 +153,7 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num, totlen = (num * bits) >> 3; from = ((loff_t)page) << this->page_shift; - + while (totlen) { len = min (totlen, (size_t) (1 << this->bbt_erase_shift)); res = mtd->read_ecc (mtd, from, len, &retlen, buf, NULL, this->autooob); @@ -163,7 +163,7 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num, return res; } printk (KERN_WARNING "nand_bbt: ECC error while reading bad block table\n"); - } + } /* Analyse data */ for (i = 0; i < len; i++) { @@ -183,12 +183,12 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num, * message to MTD_DEBUG_LEVEL0 */ printk (KERN_DEBUG "nand_read_bbt: Bad block at 0x%08x\n", ((offs << 2) + (act >> 1)) << this->bbt_erase_shift); - /* Factory marked bad or worn out ? */ + /* Factory marked bad or worn out ? */ if (tmp == 0) this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06); else this->bbt[offs + (act >> 3)] |= 0x1 << (act & 0x06); - } + } } totlen -= len; from += len; @@ -200,7 +200,7 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num, * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page * @mtd: MTD device structure * @buf: temporary buffer - * @td: descriptor for the bad block table + * @td: descriptor for the bad block table * @chip: read the table for a specific chip, -1 read all chips. * Applies only if NAND_BBT_PERCHIP option is set * @@ -235,7 +235,7 @@ static int read_abs_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page * @mtd: MTD device structure * @buf: temporary buffer - * @td: descriptor for the bad block table + * @td: descriptor for the bad block table * @md: descriptor for the bad block table mirror * * Read the bad block table(s) for all chips starting at a given page @@ -247,16 +247,16 @@ static int read_abs_bbts (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_de { struct nand_chip *this = mtd->priv; - /* Read the primary version, if available */ + /* Read the primary version, if available */ if (td->options & NAND_BBT_VERSION) { - nand_read_raw (mtd, buf, td->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize); + nand_read_raw (mtd, buf, td->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize); td->version[0] = buf[mtd->oobblock + td->veroffs]; printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", td->pages[0], td->version[0]); } - /* Read the mirror version, if available */ + /* Read the mirror version, if available */ if (md && (md->options & NAND_BBT_VERSION)) { - nand_read_raw (mtd, buf, md->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize); + nand_read_raw (mtd, buf, md->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize); md->version[0] = buf[mtd->oobblock + md->veroffs]; printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", md->pages[0], md->version[0]); } @@ -290,7 +290,7 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr else { if (bd->options & NAND_BBT_SCAN2NDPAGE) len = 2; - else + else len = 1; } @@ -322,10 +322,10 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr numblocks += startblock; from = startblock << (this->bbt_erase_shift - 1); } - + for (i = startblock; i < numblocks;) { int ret; - + if (bd->options & NAND_BBT_SCANEMPTY) if ((ret = nand_read_raw (mtd, buf, from, readlen, ooblen))) return ret; @@ -333,8 +333,8 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr for (j = 0; j < len; j++) { if (!(bd->options & NAND_BBT_SCANEMPTY)) { size_t retlen; - - /* Read the full oob until read_oob is fixed to + + /* Read the full oob until read_oob is fixed to * handle single byte reads for 16 bit buswidth */ ret = mtd->read_oob(mtd, from + j * mtd->oobblock, mtd->oobsize, &retlen, buf); @@ -343,14 +343,14 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr if (check_short_pattern (buf, bd)) { this->bbt[i >> 3] |= 0x03 << (i & 0x6); - printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n", + printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n", i >> 1, (unsigned int) from); break; } } else { if (check_pattern (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) { this->bbt[i >> 3] |= 0x03 << (i & 0x6); - printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n", + printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n", i >> 1, (unsigned int) from); break; } @@ -369,15 +369,15 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr * @td: descriptor for the bad block table * * Read the bad block table by searching for a given ident pattern. - * Search is preformed either from the beginning up or from the end of + * Search is preformed either from the beginning up or from the end of * the device downwards. The search starts always at the start of a * block. - * If the option NAND_BBT_PERCHIP is given, each chip is searched + * If the option NAND_BBT_PERCHIP is given, each chip is searched * for a bbt, which contains the bad block information of this chip. * This is neccecary to provide support for certain DOC devices. * - * The bbt ident pattern resides in the oob area of the first page - * in a block. + * The bbt ident pattern resides in the oob area of the first page + * in a block. */ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td) { @@ -392,10 +392,10 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr startblock = (mtd->size >> this->bbt_erase_shift) -1; dir = -1; } else { - startblock = 0; + startblock = 0; dir = 1; - } - + } + /* Do we have a bbt per chip ? */ if (td->options & NAND_BBT_PERCHIP) { chips = this->numchips; @@ -405,19 +405,19 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr chips = 1; bbtblocks = mtd->size >> this->bbt_erase_shift; } - + /* Number of bits for each erase block in the bbt */ bits = td->options & NAND_BBT_NRBITS_MSK; - + for (i = 0; i < chips; i++) { /* Reset version information */ - td->version[i] = 0; + td->version[i] = 0; td->pages[i] = -1; /* Scan the maximum number of blocks */ for (block = 0; block < td->maxblocks; block++) { int actblock = startblock + dir * block; /* Read first page */ - nand_read_raw (mtd, buf, actblock << this->bbt_erase_shift, mtd->oobblock, mtd->oobsize); + nand_read_raw (mtd, buf, actblock << this->bbt_erase_shift, mtd->oobblock, mtd->oobsize); if (!check_pattern(buf, scanlen, mtd->oobblock, td)) { td->pages[i] = actblock << (this->bbt_erase_shift - this->page_shift); if (td->options & NAND_BBT_VERSION) { @@ -435,46 +435,46 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr else printk (KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]); } - return 0; + return 0; } /** * search_read_bbts - [GENERIC] scan the device for bad block table(s) * @mtd: MTD device structure * @buf: temporary buffer - * @td: descriptor for the bad block table + * @td: descriptor for the bad block table * @md: descriptor for the bad block table mirror * * Search and read the bad block table(s) */ -static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf, +static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md) { /* Search the primary table */ search_bbt (mtd, buf, td); - + /* Search the mirror table */ if (md) search_bbt (mtd, buf, md); - + /* Force result check */ - return 1; + return 1; } - -/** + +/** * write_bbt - [GENERIC] (Re)write the bad block table * * @mtd: MTD device structure * @buf: temporary buffer - * @td: descriptor for the bad block table + * @td: descriptor for the bad block table * @md: descriptor for the bad block table mirror * @chipsel: selector for a specific chip, -1 for all * * (Re)write the bad block table * */ -static int write_bbt (struct mtd_info *mtd, uint8_t *buf, +static int write_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel) { struct nand_chip *this = mtd->priv; @@ -493,7 +493,7 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf, /* Write bad block table per chip rather than per device ? */ if (td->options & NAND_BBT_PERCHIP) { numblocks = (int) (this->chipsize >> this->bbt_erase_shift); - /* Full device write or specific chip ? */ + /* Full device write or specific chip ? */ if (chipsel == -1) { nrchips = this->numchips; } else { @@ -503,19 +503,19 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf, } else { numblocks = (int) (mtd->size >> this->bbt_erase_shift); nrchips = 1; - } - + } + /* Loop through the chips */ for (; chip < nrchips; chip++) { - - /* There was already a version of the table, reuse the page - * This applies for absolute placement too, as we have the + + /* There was already a version of the table, reuse the page + * This applies for absolute placement too, as we have the * page nr. in td->pages. */ if (td->pages[chip] != -1) { page = td->pages[chip]; goto write; - } + } /* Automatic placement of the bad block table */ /* Search direction top -> down ? */ @@ -525,7 +525,7 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf, } else { startblock = chip * numblocks; dir = 1; - } + } for (i = 0; i < td->maxblocks; i++) { int block = startblock + dir * i; @@ -542,7 +542,7 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf, } printk (KERN_ERR "No space left to write bad block table\n"); return -ENOSPC; -write: +write: /* Set up shift count and masks for the flash table */ bits = td->options & NAND_BBT_NRBITS_MSK; @@ -553,14 +553,14 @@ write: case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F; msk[2] = ~rcode; msk[3] = 0xff; break; default: return -EINVAL; } - + bbtoffs = chip * (numblocks >> 2); - + to = ((loff_t) page) << this->page_shift; memcpy (&oobinfo, this->autooob, sizeof(oobinfo)); oobinfo.useecc = MTD_NANDECC_PLACEONLY; - + /* Must we save the block contents ? */ if (td->options & NAND_BBT_SAVECONTENT) { /* Make it block aligned */ @@ -599,7 +599,7 @@ write: buf[len + td->veroffs] = td->version[chip]; } } - + /* walk through the memory table */ for (i = 0; i < numblocks; ) { uint8_t dat; @@ -611,7 +611,7 @@ write: dat >>= 2; } } - + memset (&einfo, 0, sizeof (einfo)); einfo.mtd = mtd; einfo.addr = (unsigned long) to; @@ -621,18 +621,18 @@ write: printk (KERN_WARNING "nand_bbt: Error during block erase: %d\n", res); return res; } - + res = mtd->write_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo); if (res < 0) { printk (KERN_WARNING "nand_bbt: Error while writing bad block table %d\n", res); return res; } - printk (KERN_DEBUG "Bad block table written to 0x%08x, version 0x%02X\n", + printk (KERN_DEBUG "Bad block table written to 0x%08x, version 0x%02X\n", (unsigned int) to, td->version[chip]); - + /* Mark it as used */ td->pages[chip] = page; - } + } return 0; } @@ -641,7 +641,7 @@ write: * @mtd: MTD device structure * @bd: descriptor for the good/bad block search pattern * - * The function creates a memory based bbt by scanning the device + * The function creates a memory based bbt by scanning the device * for manufacturer / software marked good / bad blocks */ static inline int nand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd) @@ -673,11 +673,11 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des struct nand_bbt_descr *rd, *rd2; /* Do we have a bbt per chip ? */ - if (td->options & NAND_BBT_PERCHIP) + if (td->options & NAND_BBT_PERCHIP) chips = this->numchips; - else + else chips = 1; - + for (i = 0; i < chips; i++) { writeops = 0; rd = NULL; @@ -692,7 +692,7 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des } if (td->pages[i] == -1) { - rd = md; + rd = md; td->version[i] = md->version[i]; writeops = 1; goto writecheck; @@ -710,7 +710,7 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des if (!(td->options & NAND_BBT_VERSION)) rd2 = md; goto writecheck; - } + } if (((int8_t) (td->version[i] - md->version[i])) > 0) { rd = td; @@ -735,15 +735,15 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des create: /* Create the bad block table by scanning the device ? */ if (!(td->options & NAND_BBT_CREATE)) - continue; - + continue; + /* Create the table in memory by scanning the chip(s) */ create_bbt (mtd, buf, bd, chipsel); - + td->version[i] = 1; if (md) - md->version[i] = 1; -writecheck: + md->version[i] = 1; +writecheck: /* read back first ? */ if (rd) read_abs_bbt (mtd, buf, rd, chipsel); @@ -757,7 +757,7 @@ writecheck: if (res < 0) return res; } - + /* Write the mirror bad block table to the device ? */ if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) { res = write_bbt (mtd, buf, md, td, chipsel); @@ -765,11 +765,11 @@ writecheck: return res; } } - return 0; + return 0; } /** - * mark_bbt_regions - [GENERIC] mark the bad block table regions + * mark_bbt_regions - [GENERIC] mark the bad block table regions * @mtd: MTD device structure * @td: bad block table descriptor * @@ -790,14 +790,14 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td) } else { chips = 1; nrblocks = (int)(mtd->size >> this->bbt_erase_shift); - } - + } + for (i = 0; i < chips; i++) { if ((td->options & NAND_BBT_ABSPAGE) || !(td->options & NAND_BBT_WRITE)) { if (td->pages[i] == -1) continue; block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift); - block <<= 1; + block <<= 1; oldval = this->bbt[(block >> 3)]; newval = oldval | (0x2 << (block & 0x06)); this->bbt[(block >> 3)] = newval; @@ -808,16 +808,16 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td) update = 0; if (td->options & NAND_BBT_LASTBLOCK) block = ((i + 1) * nrblocks) - td->maxblocks; - else + else block = i * nrblocks; - block <<= 1; + block <<= 1; for (j = 0; j < td->maxblocks; j++) { oldval = this->bbt[(block >> 3)]; newval = oldval | (0x2 << (block & 0x06)); this->bbt[(block >> 3)] = newval; if (oldval != newval) update = 1; block += 2; - } + } /* If we want reserved blocks to be recorded to flash, and some new ones have been marked, then we need to update the stored bbts. This should only happen once. */ @@ -831,7 +831,7 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td) * @mtd: MTD device structure * @bd: descriptor for the good/bad block search pattern * - * The function checks, if a bad block table(s) is/are already + * The function checks, if a bad block table(s) is/are already * available. If not it scans the device for manufacturer * marked good / bad blocks and writes the bad block table(s) to * the selected place. @@ -880,30 +880,30 @@ int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd) this->bbt = NULL; return -ENOMEM; } - + /* Is the bbt at a given page ? */ if (td->options & NAND_BBT_ABSPAGE) { res = read_abs_bbts (mtd, buf, td, md); - } else { + } else { /* Search the bad block table using a pattern in oob */ res = search_read_bbts (mtd, buf, td, md); - } + } - if (res) + if (res) res = check_create (mtd, buf, bd); - + /* Prevent the bbt regions from erasing / writing */ mark_bbt_region (mtd, td); if (md) mark_bbt_region (mtd, md); - + kfree (buf); return res; } /** - * nand_update_bbt - [NAND Interface] update bad block table(s) + * nand_update_bbt - [NAND Interface] update bad block table(s) * @mtd: MTD device structure * @offs: the offset of the newly marked block * @@ -930,7 +930,7 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs) printk (KERN_ERR "nand_update_bbt: Out of memory\n"); return -ENOMEM; } - + writeops = md != NULL ? 0x03 : 0x01; /* Do we have a bbt per chip ? */ @@ -944,7 +944,7 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs) td->version[chip]++; if (md) - md->version[chip]++; + md->version[chip]++; /* Write the bad block table to the device ? */ if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) { @@ -957,12 +957,12 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs) res = write_bbt (mtd, buf, md, td, chipsel); } -out: +out: kfree (buf); return res; } -/* Define some generic bad / good block scan pattern which are used +/* Define some generic bad / good block scan pattern which are used * while scanning a device for factory marked good / bad blocks. */ static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; @@ -1009,7 +1009,7 @@ static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' }; static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' }; static struct nand_bbt_descr bbt_main_descr = { - .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE + .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, .offs = 8, .len = 4, @@ -1019,7 +1019,7 @@ static struct nand_bbt_descr bbt_main_descr = { }; static struct nand_bbt_descr bbt_mirror_descr = { - .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE + .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, .offs = 8, .len = 4, @@ -1029,7 +1029,7 @@ static struct nand_bbt_descr bbt_mirror_descr = { }; /** - * nand_default_bbt - [NAND Interface] Select a default bad block table for the device + * nand_default_bbt - [NAND Interface] Select a default bad block table for the device * @mtd: MTD device structure * * This function selects the default bad block table @@ -1039,29 +1039,29 @@ static struct nand_bbt_descr bbt_mirror_descr = { int nand_default_bbt (struct mtd_info *mtd) { struct nand_chip *this = mtd->priv; - - /* Default for AG-AND. We must use a flash based + + /* Default for AG-AND. We must use a flash based * bad block table as the devices have factory marked * _good_ blocks. Erasing those blocks leads to loss * of the good / bad information, so we _must_ store - * this information in a good / bad table during + * this information in a good / bad table during * startup */ if (this->options & NAND_IS_AND) { /* Use the default pattern descriptors */ - if (!this->bbt_td) { + if (!this->bbt_td) { this->bbt_td = &bbt_main_descr; this->bbt_md = &bbt_mirror_descr; - } + } this->options |= NAND_USE_FLASH_BBT; return nand_scan_bbt (mtd, &agand_flashbased); } - - + + /* Is a flash based bad block table requested ? */ if (this->options & NAND_USE_FLASH_BBT) { - /* Use the default pattern descriptors */ - if (!this->bbt_td) { + /* Use the default pattern descriptors */ + if (!this->bbt_td) { this->bbt_td = &bbt_main_descr; this->bbt_md = &bbt_mirror_descr; } @@ -1081,7 +1081,7 @@ int nand_default_bbt (struct mtd_info *mtd) } /** - * nand_isbad_bbt - [NAND Interface] Check if a block is bad + * nand_isbad_bbt - [NAND Interface] Check if a block is bad * @mtd: MTD device structure * @offs: offset in the device * @allowbbt: allow access to bad block table region @@ -1092,12 +1092,12 @@ int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt) struct nand_chip *this = mtd->priv; int block; uint8_t res; - + /* Get block number * 2 */ block = (int) (offs >> (this->bbt_erase_shift - 1)); res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03; - DEBUG (MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n", + DEBUG (MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n", (unsigned int)offs, block >> 1, res); switch ((int)res) { diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 2e341b75437..40ac909150a 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -7,22 +7,22 @@ * Copyright (C) 2000-2004 Steven J. Hill (sjhill@realitydiluted.com) * Toshiba America Electronics Components, Inc. * - * $Id: nand_ecc.c,v 1.14 2004/06/16 15:34:37 gleixner Exp $ + * $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $ * * This file is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 or (at your option) any * later version. - * + * * This file is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. - * + * * You should have received a copy of the GNU General Public License along * with this file; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * + * * As a special exception, if other files instantiate templates or use * macros or inline functions from these files, or you compile these * files and link them with other works to produce a work based on these @@ -30,7 +30,7 @@ * covered by the GNU General Public License. However the source code for * these files must still be made available in accordance with section (3) * of the GNU General Public License. - * + * * This exception does not invalidate any other reasons why a work based on * this file might be covered by the GNU General Public License. */ @@ -67,7 +67,7 @@ static const u_char nand_ecc_precalc_table[] = { * nand_trans_result - [GENERIC] create non-inverted ECC * @reg2: line parity reg 2 * @reg3: line parity reg 3 - * @ecc_code: ecc + * @ecc_code: ecc * * Creates non-inverted ECC code from line parity */ @@ -75,11 +75,11 @@ static void nand_trans_result(u_char reg2, u_char reg3, u_char *ecc_code) { u_char a, b, i, tmp1, tmp2; - + /* Initialize variables */ a = b = 0x80; tmp1 = tmp2 = 0; - + /* Calculate first ECC byte */ for (i = 0; i < 4; i++) { if (reg3 & a) /* LP15,13,11,9 --> ecc_code[0] */ @@ -90,7 +90,7 @@ static void nand_trans_result(u_char reg2, u_char reg3, b >>= 1; a >>= 1; } - + /* Calculate second ECC byte */ b = 0x80; for (i = 0; i < 4; i++) { @@ -102,7 +102,7 @@ static void nand_trans_result(u_char reg2, u_char reg3, b >>= 1; a >>= 1; } - + /* Store two of the ECC bytes */ ecc_code[0] = tmp1; ecc_code[1] = tmp2; @@ -118,28 +118,28 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code { u_char idx, reg1, reg2, reg3; int j; - + /* Initialize variables */ reg1 = reg2 = reg3 = 0; ecc_code[0] = ecc_code[1] = ecc_code[2] = 0; - - /* Build up column parity */ + + /* Build up column parity */ for(j = 0; j < 256; j++) { - + /* Get CP0 - CP5 from table */ idx = nand_ecc_precalc_table[dat[j]]; reg1 ^= (idx & 0x3f); - + /* All bit XOR = 1 ? */ if (idx & 0x40) { reg3 ^= (u_char) j; reg2 ^= ~((u_char) j); } } - + /* Create non-inverted ECC code from line parity */ nand_trans_result(reg2, reg3, ecc_code); - + /* Calculate final ECC code */ ecc_code[0] = ~ecc_code[0]; ecc_code[1] = ~ecc_code[1]; @@ -159,12 +159,12 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { u_char a, b, c, d1, d2, d3, add, bit, i; - - /* Do error detection */ + + /* Do error detection */ d1 = calc_ecc[0] ^ read_ecc[0]; d2 = calc_ecc[1] ^ read_ecc[1]; d3 = calc_ecc[2] ^ read_ecc[2]; - + if ((d1 | d2 | d3) == 0) { /* No errors */ return 0; @@ -173,7 +173,7 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_cha a = (d1 ^ (d1 >> 1)) & 0x55; b = (d2 ^ (d2 >> 1)) & 0x55; c = (d3 ^ (d3 >> 1)) & 0x54; - + /* Found and will correct single bit error in the data */ if ((a == 0x55) && (b == 0x55) && (c == 0x54)) { c = 0x80; @@ -237,7 +237,7 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_cha } } } - + /* Should never happen */ return -1; } diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c index efe246961b6..dbc7e55a424 100644 --- a/drivers/mtd/nand/nand_ids.c +++ b/drivers/mtd/nand/nand_ids.c @@ -3,7 +3,7 @@ * * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de) * - * $Id: nand_ids.c,v 1.14 2005/06/23 09:38:50 gleixner Exp $ + * $Id: nand_ids.c,v 1.16 2005/11/07 11:14:31 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -14,14 +14,14 @@ #include <linux/mtd/nand.h> /* * Chip ID list -* +* * Name. ID code, pagesize, chipsize in MegaByte, eraseblock size, * options -* +* * Pagesize; 0, 256, 512 * 0 get this information from the extended chip ID + 256 256 Byte page size -* 512 512 Byte page size +* 512 512 Byte page size */ struct nand_flash_dev nand_flash_ids[] = { {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0}, @@ -34,27 +34,27 @@ struct nand_flash_dev nand_flash_ids[] = { {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0}, {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0}, {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0}, - + {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0}, {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0}, {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16}, {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16}, - + {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0}, {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0}, {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16}, {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16}, - + {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0}, {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0}, {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16}, {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16}, - + {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0}, {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0}, {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16}, {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16}, - + {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0}, {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0}, {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0}, @@ -62,7 +62,7 @@ struct nand_flash_dev nand_flash_ids[] = { {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16}, {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16}, {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16}, - + {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0}, /* These are the new chips with large page size. The pagesize @@ -73,7 +73,7 @@ struct nand_flash_dev nand_flash_ids[] = { {"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, {"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, {"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, - + /* 1 Gigabit */ {"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, {"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, @@ -85,13 +85,13 @@ struct nand_flash_dev nand_flash_ids[] = { {"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, {"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, {"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, - + /* 4 Gigabit */ {"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, {"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, {"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, {"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, - + /* 8 Gigabit */ {"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, {"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, @@ -104,11 +104,11 @@ struct nand_flash_dev nand_flash_ids[] = { {"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, {"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, - /* Renesas AND 1 Gigabit. Those chips do not support extended id and have a strange page/block layout ! + /* Renesas AND 1 Gigabit. Those chips do not support extended id and have a strange page/block layout ! * The chosen minimum erasesize is 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page planes * 1 block = 2 pages, but due to plane arrangement the blocks 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7 * Anyway JFFS2 would increase the eraseblock size so we chose a combined one which can be erased in one go - * There are more speed improvements for reads and writes possible, but not implemented now + * There are more speed improvements for reads and writes possible, but not implemented now */ {"AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR | NAND_4PAGE_ARRAY | BBT_AUTO_REFRESH}, diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 754b6ed7ce1..a0af92cc7ef 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -3,7 +3,7 @@ * * Author: Artem B. Bityuckiy <dedekind@oktetlabs.ru>, <dedekind@infradead.org> * - * Copyright (C) 2004 Nokia Corporation + * Copyright (C) 2004 Nokia Corporation * * Note: NS means "NAND Simulator". * Note: Input means input TO flash chip, output means output FROM chip. @@ -126,7 +126,7 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero"); /* The largest possible page size */ #define NS_LARGEST_PAGE_SIZE 2048 - + /* The prefix for simulator output */ #define NS_OUTPUT_PREFIX "[nandsim]" @@ -145,7 +145,7 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero"); do { if (do_delays) udelay(us); } while(0) #define NS_MDELAY(us) \ do { if (do_delays) mdelay(us); } while(0) - + /* Is the nandsim structure initialized ? */ #define NS_IS_INITIALIZED(ns) ((ns)->geom.totsz != 0) @@ -153,12 +153,12 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero"); #define NS_STATUS_OK(ns) (NAND_STATUS_READY | (NAND_STATUS_WP * ((ns)->lines.wp == 0))) /* Operation failed completion status */ -#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns)) +#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns)) /* Calculate the page offset in flash RAM image by (row, column) address */ #define NS_RAW_OFFSET(ns) \ (((ns)->regs.row << (ns)->geom.pgshift) + ((ns)->regs.row * (ns)->geom.oobsz) + (ns)->regs.column) - + /* Calculate the OOB offset in flash RAM image by (row, column) address */ #define NS_RAW_OFFSET_OOB(ns) (NS_RAW_OFFSET(ns) + ns->geom.pgsz) @@ -223,15 +223,15 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero"); /* Remove action bits ftom state */ #define NS_STATE(x) ((x) & ~ACTION_MASK) - -/* + +/* * Maximum previous states which need to be saved. Currently saving is * only needed for page programm operation with preceeded read command * (which is only valid for 512-byte pages). */ #define NS_MAX_PREVSTATES 1 -/* +/* * The structure which describes all the internal simulator data. */ struct nandsim { @@ -242,7 +242,7 @@ struct nandsim { uint32_t options; /* chip's characteristic bits */ uint32_t state; /* current chip state */ uint32_t nxstate; /* next expected state */ - + uint32_t *op; /* current operation, NULL operations isn't known yet */ uint32_t pstates[NS_MAX_PREVSTATES]; /* previous states */ uint16_t npstates; /* number of previous states saved */ @@ -413,7 +413,7 @@ init_nandsim(struct mtd_info *mtd) ns->geom.secaddrbytes = 3; } } - + /* Detect how many ID bytes the NAND chip outputs */ for (i = 0; nand_flash_ids[i].name != NULL; i++) { if (second_id_byte != nand_flash_ids[i].id) @@ -444,7 +444,7 @@ init_nandsim(struct mtd_info *mtd) #ifdef CONFIG_NS_ABS_POS ns->mem.byte = ioremap(CONFIG_NS_ABS_POS, ns->geom.totszoob); if (!ns->mem.byte) { - NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n", + NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n", (void *)CONFIG_NS_ABS_POS); return -ENOMEM; } @@ -567,7 +567,7 @@ static int check_command(int cmd) { switch (cmd) { - + case NAND_CMD_READ0: case NAND_CMD_READSTART: case NAND_CMD_PAGEPROG: @@ -580,7 +580,7 @@ check_command(int cmd) case NAND_CMD_RESET: case NAND_CMD_READ1: return 0; - + case NAND_CMD_STATUS_MULTI: default: return 1; @@ -631,7 +631,7 @@ static inline void accept_addr_byte(struct nandsim *ns, u_char bt) { uint byte = (uint)bt; - + if (ns->regs.count < (ns->geom.pgaddrbytes - ns->geom.secaddrbytes)) ns->regs.column |= (byte << 8 * ns->regs.count); else { @@ -642,11 +642,11 @@ accept_addr_byte(struct nandsim *ns, u_char bt) return; } - + /* * Switch to STATE_READY state. */ -static inline void +static inline void switch_to_ready_state(struct nandsim *ns, u_char status) { NS_DBG("switch_to_ready_state: switch to %s state\n", get_state_name(STATE_READY)); @@ -675,7 +675,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status) * (for example program from the second half and read from the * second half operations both begin with the READ1 command). In this * case the ns->pstates[] array contains previous states. - * + * * Thus, the function tries to find operation containing the following * states (if the 'flag' parameter is 0): * ns->pstates[0], ... ns->pstates[ns->npstates], ns->state @@ -683,7 +683,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status) * If (one and only one) matching operation is found, it is accepted ( * ns->ops, ns->state, ns->nxstate are initialized, ns->npstate is * zeroed). - * + * * If there are several maches, the current state is pushed to the * ns->pstates. * @@ -692,7 +692,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status) * In such situation the function is called with 'flag' != 0, and the * operation is searched using the following pattern: * ns->pstates[0], ... ns->pstates[ns->npstates], <address input> - * + * * It is supposed that this pattern must either match one operation on * none. There can't be ambiguity in that case. * @@ -711,15 +711,15 @@ find_operation(struct nandsim *ns, uint32_t flag) { int opsfound = 0; int i, j, idx = 0; - + for (i = 0; i < NS_OPER_NUM; i++) { int found = 1; - + if (!(ns->options & ops[i].reqopts)) /* Ignore operations we can't perform */ continue; - + if (flag) { if (!(ops[i].states[ns->npstates] & STATE_ADDR_MASK)) continue; @@ -728,7 +728,7 @@ find_operation(struct nandsim *ns, uint32_t flag) continue; } - for (j = 0; j < ns->npstates; j++) + for (j = 0; j < ns->npstates; j++) if (NS_STATE(ops[i].states[j]) != NS_STATE(ns->pstates[j]) && (ns->options & ops[idx].reqopts)) { found = 0; @@ -745,7 +745,7 @@ find_operation(struct nandsim *ns, uint32_t flag) /* Exact match */ ns->op = &ops[idx].states[0]; if (flag) { - /* + /* * In this case the find_operation function was * called when address has just began input. But it isn't * yet fully input and the current state must @@ -763,7 +763,7 @@ find_operation(struct nandsim *ns, uint32_t flag) idx, get_state_name(ns->state), get_state_name(ns->nxstate)); return 0; } - + if (opsfound == 0) { /* Nothing was found. Try to ignore previous commands (if any) and search again */ if (ns->npstates != 0) { @@ -777,13 +777,13 @@ find_operation(struct nandsim *ns, uint32_t flag) switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); return -2; } - + if (flag) { /* This shouldn't happen */ NS_DBG("find_operation: BUG, operation must be known if address is input\n"); return -2; } - + NS_DBG("find_operation: there is still ambiguity\n"); ns->pstates[ns->npstates++] = ns->state; @@ -803,7 +803,7 @@ do_state_action(struct nandsim *ns, uint32_t action) int busdiv = ns->busw == 8 ? 1 : 2; action &= ACTION_MASK; - + /* Check that page address input is correct */ if (action != ACTION_SECERASE && ns->regs.row >= ns->geom.pgnum) { NS_WARN("do_state_action: wrong page number (%#x)\n", ns->regs.row); @@ -827,14 +827,14 @@ do_state_action(struct nandsim *ns, uint32_t action) NS_DBG("do_state_action: (ACTION_CPY:) copy %d bytes to int buf, raw offset %d\n", num, NS_RAW_OFFSET(ns) + ns->regs.off); - + if (ns->regs.off == 0) NS_LOG("read page %d\n", ns->regs.row); else if (ns->regs.off < ns->geom.pgsz) NS_LOG("read page %d (second half)\n", ns->regs.row); else NS_LOG("read OOB of page %d\n", ns->regs.row); - + NS_UDELAY(access_delay); NS_UDELAY(input_cycle * ns->geom.pgsz / 1000 / busdiv); @@ -844,30 +844,30 @@ do_state_action(struct nandsim *ns, uint32_t action) /* * Erase sector. */ - + if (ns->lines.wp) { NS_ERR("do_state_action: device is write-protected, ignore sector erase\n"); return -1; } - + if (ns->regs.row >= ns->geom.pgnum - ns->geom.pgsec || (ns->regs.row & ~(ns->geom.secsz - 1))) { NS_ERR("do_state_action: wrong sector address (%#x)\n", ns->regs.row); return -1; } - + ns->regs.row = (ns->regs.row << 8 * (ns->geom.pgaddrbytes - ns->geom.secaddrbytes)) | ns->regs.column; ns->regs.column = 0; - + NS_DBG("do_state_action: erase sector at address %#x, off = %d\n", ns->regs.row, NS_RAW_OFFSET(ns)); NS_LOG("erase sector %d\n", ns->regs.row >> (ns->geom.secshift - ns->geom.pgshift)); memset(ns->mem.byte + NS_RAW_OFFSET(ns), 0xFF, ns->geom.secszoob); - + NS_MDELAY(erase_delay); - + break; case ACTION_PRGPAGE: @@ -893,12 +893,12 @@ do_state_action(struct nandsim *ns, uint32_t action) NS_DBG("do_state_action: copy %d bytes from int buf to (%#x, %#x), raw off = %d\n", num, ns->regs.row, ns->regs.column, NS_RAW_OFFSET(ns) + ns->regs.off); NS_LOG("programm page %d\n", ns->regs.row); - + NS_UDELAY(programm_delay); NS_UDELAY(output_cycle * ns->geom.pgsz / 1000 / busdiv); - + break; - + case ACTION_ZEROOFF: NS_DBG("do_state_action: set internal offset to 0\n"); ns->regs.off = 0; @@ -918,7 +918,7 @@ do_state_action(struct nandsim *ns, uint32_t action) NS_DBG("do_state_action: set internal offset to %d\n", ns->geom.pgsz); ns->regs.off = ns->geom.pgsz; break; - + default: NS_DBG("do_state_action: BUG! unknown action\n"); } @@ -937,7 +937,7 @@ switch_state(struct nandsim *ns) * The current operation have already been identified. * Just follow the states chain. */ - + ns->stateidx += 1; ns->state = ns->nxstate; ns->nxstate = ns->op[ns->stateidx + 1]; @@ -951,14 +951,14 @@ switch_state(struct nandsim *ns) switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); return; } - + } else { /* * We don't yet know which operation we perform. * Try to identify it. */ - /* + /* * The only event causing the switch_state function to * be called with yet unknown operation is new command. */ @@ -987,7 +987,7 @@ switch_state(struct nandsim *ns) */ u_char status = NS_STATUS_OK(ns); - + /* In case of data states, see if all bytes were input/output */ if ((ns->state & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK)) && ns->regs.count != ns->regs.num) { @@ -995,17 +995,17 @@ switch_state(struct nandsim *ns) ns->regs.num - ns->regs.count); status = NS_STATUS_FAILED(ns); } - + NS_DBG("switch_state: operation complete, switch to STATE_READY state\n"); switch_to_ready_state(ns, status); return; } else if (ns->nxstate & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK)) { - /* + /* * If the next state is data input/output, switch to it now */ - + ns->state = ns->nxstate; ns->nxstate = ns->op[++ns->stateidx + 1]; ns->regs.num = ns->regs.count = 0; @@ -1023,16 +1023,16 @@ switch_state(struct nandsim *ns) case STATE_DATAOUT: ns->regs.num = ns->geom.pgszoob - ns->regs.off - ns->regs.column; break; - + case STATE_DATAOUT_ID: ns->regs.num = ns->geom.idbytes; break; - + case STATE_DATAOUT_STATUS: case STATE_DATAOUT_STATUS_M: ns->regs.count = ns->regs.num = 0; break; - + default: NS_ERR("switch_state: BUG! unknown data state\n"); } @@ -1044,16 +1044,16 @@ switch_state(struct nandsim *ns) */ ns->regs.count = 0; - + switch (NS_STATE(ns->nxstate)) { case STATE_ADDR_PAGE: ns->regs.num = ns->geom.pgaddrbytes; - + break; case STATE_ADDR_SEC: ns->regs.num = ns->geom.secaddrbytes; break; - + case STATE_ADDR_ZERO: ns->regs.num = 1; break; @@ -1062,7 +1062,7 @@ switch_state(struct nandsim *ns) NS_ERR("switch_state: BUG! unknown address state\n"); } } else { - /* + /* * Just reset internal counters. */ @@ -1184,7 +1184,7 @@ ns_nand_read_byte(struct mtd_info *mtd) default: BUG(); } - + if (ns->regs.count == ns->regs.num) { NS_DBG("read_byte: all bytes were read\n"); @@ -1201,9 +1201,9 @@ ns_nand_read_byte(struct mtd_info *mtd) } else if (NS_STATE(ns->nxstate) == STATE_READY) switch_state(ns); - + } - + return outb; } @@ -1211,7 +1211,7 @@ static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte) { struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv; - + /* Sanity and correctness checks */ if (!ns->lines.ce) { NS_ERR("write_byte: chip is disabled, ignore write\n"); @@ -1221,7 +1221,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte) NS_ERR("write_byte: ALE and CLE pins are high simultaneously, ignore write\n"); return; } - + if (ns->lines.cle == 1) { /* * The byte written is a command. @@ -1233,7 +1233,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte) return; } - /* + /* * Chip might still be in STATE_DATAOUT * (if OPT_AUTOINCR feature is supported), STATE_DATAOUT_STATUS or * STATE_DATAOUT_STATUS_M state. If so, switch state. @@ -1254,13 +1254,13 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte) "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate)); switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); } - + /* Check that the command byte is correct */ if (check_command(byte)) { NS_ERR("write_byte: unknown command %#x\n", (uint)byte); return; } - + NS_DBG("command byte corresponding to %s state accepted\n", get_state_name(get_state_by_command(byte))); ns->regs.command = byte; @@ -1277,12 +1277,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte) if (find_operation(ns, 1) < 0) return; - + if ((ns->state & ACTION_MASK) && do_state_action(ns, ns->state) < 0) { switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); return; } - + ns->regs.count = 0; switch (NS_STATE(ns->nxstate)) { case STATE_ADDR_PAGE: @@ -1306,7 +1306,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte) switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); return; } - + /* Check if this is expected byte */ if (ns->regs.count == ns->regs.num) { NS_ERR("write_byte: no more address bytes expected\n"); @@ -1325,12 +1325,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte) NS_DBG("address (%#x, %#x) is accepted\n", ns->regs.row, ns->regs.column); switch_state(ns); } - + } else { /* * The byte written is an input data. */ - + /* Check that chip is expecting data input */ if (!(ns->state & STATE_DATAIN_MASK)) { NS_ERR("write_byte: data input (%#x) isn't expected, state is %s, " @@ -1372,7 +1372,7 @@ ns_nand_read_word(struct mtd_info *mtd) struct nand_chip *chip = (struct nand_chip *)mtd->priv; NS_DBG("read_word\n"); - + return chip->read_byte(mtd) | (chip->read_byte(mtd) << 8); } @@ -1380,14 +1380,14 @@ static void ns_nand_write_word(struct mtd_info *mtd, uint16_t word) { struct nand_chip *chip = (struct nand_chip *)mtd->priv; - + NS_DBG("write_word\n"); - + chip->write_byte(mtd, word & 0xFF); chip->write_byte(mtd, word >> 8); } -static void +static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv; @@ -1409,13 +1409,13 @@ ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) memcpy(ns->buf.byte + ns->regs.count, buf, len); ns->regs.count += len; - + if (ns->regs.count == ns->regs.num) { NS_DBG("write_buf: %d bytes were written\n", ns->regs.count); } } -static void +static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv; @@ -1453,7 +1453,7 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) memcpy(buf, ns->buf.byte + ns->regs.count, len); ns->regs.count += len; - + if (ns->regs.count == ns->regs.num) { if ((ns->options & OPT_AUTOINCR) && NS_STATE(ns->state) == STATE_DATAOUT) { ns->regs.count = 0; @@ -1465,11 +1465,11 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) else if (NS_STATE(ns->nxstate) == STATE_READY) switch_state(ns); } - + return; } -static int +static int ns_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len) { ns_nand_read_buf(mtd, (u_char *)&ns_verify_buf[0], len); @@ -1486,7 +1486,7 @@ ns_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len) /* * Module initialization function */ -int __init ns_init_module(void) +static int __init ns_init_module(void) { struct nand_chip *chip; struct nandsim *nand; @@ -1496,7 +1496,7 @@ int __init ns_init_module(void) NS_ERR("wrong bus width (%d), use only 8 or 16\n", bus_width); return -EINVAL; } - + /* Allocate and initialize mtd_info, nand_chip and nandsim structures */ nsmtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip) + sizeof(struct nandsim), GFP_KERNEL); @@ -1509,7 +1509,7 @@ int __init ns_init_module(void) chip = (struct nand_chip *)(nsmtd + 1); nsmtd->priv = (void *)chip; nand = (struct nandsim *)(chip + 1); - chip->priv = (void *)nand; + chip->priv = (void *)nand; /* * Register simulator's callbacks. @@ -1526,9 +1526,9 @@ int __init ns_init_module(void) chip->eccmode = NAND_ECC_SOFT; chip->options |= NAND_SKIP_BBTSCAN; - /* + /* * Perform minimum nandsim structure initialization to handle - * the initial ID read command correctly + * the initial ID read command correctly */ if (third_id_byte != 0xFF || fourth_id_byte != 0xFF) nand->geom.idbytes = 4; @@ -1557,7 +1557,7 @@ int __init ns_init_module(void) NS_ERR("scan_bbt: can't initialize the nandsim structure\n"); goto error; } - + if ((retval = nand_default_bbt(nsmtd)) != 0) { free_nandsim(nand); goto error; diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index e510a83d7bd..91a95f34a6e 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -6,7 +6,7 @@ * Derived from drivers/mtd/nand/edb7312.c * * - * $Id: ppchameleonevb.c,v 1.6 2004/11/05 16:07:16 kalev Exp $ + * $Id: ppchameleonevb.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -338,7 +338,7 @@ nand_evb_init: out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xFFFFFFF0); out_be32((volatile unsigned*)GPIO0_TSRL, in_be32((volatile unsigned*)GPIO0_TSRL) & 0x3FFFFFFF); /* enable output driver */ - out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN | + out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN | NAND_EVB_CLE_GPIO_PIN | NAND_EVB_ALE_GPIO_PIN); #ifdef USE_READY_BUSY_PIN /* three-state select */ @@ -402,7 +402,7 @@ static void __exit ppchameleonevb_cleanup (void) /* Release resources, unregister device(s) */ nand_release (ppchameleon_mtd); nand_release (ppchameleonevb_mtd); - + /* Release iomaps */ this = (struct nand_chip *) &ppchameleon_mtd[1]; iounmap((void *) this->IO_ADDR_R; diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c index 031051cbde7..3a5841c9d95 100644 --- a/drivers/mtd/nand/rtc_from4.c +++ b/drivers/mtd/nand/rtc_from4.c @@ -2,11 +2,11 @@ * drivers/mtd/nand/rtc_from4.c * * Copyright (C) 2004 Red Hat, Inc. - * + * * Derived from drivers/mtd/nand/spia.c * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) * - * $Id: rtc_from4.c,v 1.9 2005/01/24 20:40:11 dmarlin Exp $ + * $Id: rtc_from4.c,v 1.10 2005/11/07 11:14:31 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -14,8 +14,8 @@ * * Overview: * This is a device driver for the AG-AND flash device found on the - * Renesas Technology Corp. Flash ROM 4-slot interface board (FROM_BOARD4), - * which utilizes the Renesas HN29V1G91T-30 part. + * Renesas Technology Corp. Flash ROM 4-slot interface board (FROM_BOARD4), + * which utilizes the Renesas HN29V1G91T-30 part. * This chip is a 1 GBibit (128MiB x 8 bits) AG-AND flash device. */ @@ -105,9 +105,9 @@ const static struct mtd_partition partition_info[] = { }; #define NUM_PARTITIONS 1 -/* +/* * hardware specific flash bbt decriptors - * Note: this is to allow debugging by disabling + * Note: this is to allow debugging by disabling * NAND_BBT_CREATE and/or NAND_BBT_WRITE * */ @@ -141,7 +141,7 @@ static struct nand_bbt_descr rtc_from4_bbt_mirror_descr = { /* the Reed Solomon control structure */ static struct rs_control *rs_decoder; -/* +/* * hardware specific Out Of Band information */ static struct nand_oobinfo rtc_from4_nand_oobinfo = { @@ -200,38 +200,38 @@ static uint8_t revbits[256] = { -/* +/* * rtc_from4_hwcontrol - hardware specific access to control-lines * @mtd: MTD device structure * @cmd: hardware control command * - * Address lines (A5 and A4) are used to control Command and Address Latch + * Address lines (A5 and A4) are used to control Command and Address Latch * Enable on this board, so set the read/write address appropriately. * - * Chip Enable is also controlled by the Chip Select (CS5) and + * Chip Enable is also controlled by the Chip Select (CS5) and * Address lines (A24-A22), so no action is required here. * */ static void rtc_from4_hwcontrol(struct mtd_info *mtd, int cmd) { struct nand_chip* this = (struct nand_chip *) (mtd->priv); - + switch(cmd) { - - case NAND_CTL_SETCLE: + + case NAND_CTL_SETCLE: this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W | RTC_FROM4_CLE); break; - case NAND_CTL_CLRCLE: + case NAND_CTL_CLRCLE: this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W & ~RTC_FROM4_CLE); break; - + case NAND_CTL_SETALE: this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W | RTC_FROM4_ALE); break; case NAND_CTL_CLRALE: this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W & ~RTC_FROM4_ALE); break; - + case NAND_CTL_SETNCE: break; case NAND_CTL_CLRNCE: @@ -296,7 +296,7 @@ static int rtc_from4_nand_device_ready(struct mtd_info *mtd) * @mtd: MTD device structure * @chip: Chip to select (0 == slot 3, 1 == slot 4) * - * If there was a sudden loss of power during an erase operation, a + * If there was a sudden loss of power during an erase operation, a * "device recovery" operation must be performed when power is restored * to ensure correct operation. This routine performs the required steps * for the requested chip. @@ -312,7 +312,7 @@ static void deplete(struct mtd_info *mtd, int chip) while (!this->dev_ready(mtd)); this->select_chip(mtd, chip); - + /* Send the commands for device recovery, phase 1 */ this->cmdfunc (mtd, NAND_CMD_DEPLETE1, 0x0000, 0x0000); this->cmdfunc (mtd, NAND_CMD_DEPLETE2, -1, -1); @@ -330,7 +330,7 @@ static void deplete(struct mtd_info *mtd, int chip) * @mtd: MTD device structure * @mode: I/O mode; read or write * - * enable hardware ECC for data read or write + * enable hardware ECC for data read or write * */ static void rtc_from4_enable_hwecc(struct mtd_info *mtd, int mode) @@ -340,7 +340,7 @@ static void rtc_from4_enable_hwecc(struct mtd_info *mtd, int mode) switch (mode) { case NAND_ECC_READ : - status = RTC_FROM4_RS_ECC_CTL_CLR + status = RTC_FROM4_RS_ECC_CTL_CLR | RTC_FROM4_RS_ECC_CTL_FD_E; *rs_ecc_ctl = status; @@ -353,8 +353,8 @@ static void rtc_from4_enable_hwecc(struct mtd_info *mtd, int mode) break; case NAND_ECC_WRITE : - status = RTC_FROM4_RS_ECC_CTL_CLR - | RTC_FROM4_RS_ECC_CTL_GEN + status = RTC_FROM4_RS_ECC_CTL_CLR + | RTC_FROM4_RS_ECC_CTL_GEN | RTC_FROM4_RS_ECC_CTL_FD_E; *rs_ecc_ctl = status; @@ -411,7 +411,7 @@ static void rtc_from4_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_c static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_char *ecc1, u_char *ecc2) { int i, j, res; - unsigned short status; + unsigned short status; uint16_t par[6], syn[6]; uint8_t ecc[8]; volatile unsigned short *rs_ecc; @@ -430,7 +430,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha } /* convert into 6 10bit syndrome fields */ - par[5] = rs_decoder->index_of[(((uint16_t)ecc[0] >> 0) & 0x0ff) | + par[5] = rs_decoder->index_of[(((uint16_t)ecc[0] >> 0) & 0x0ff) | (((uint16_t)ecc[1] << 8) & 0x300)]; par[4] = rs_decoder->index_of[(((uint16_t)ecc[1] >> 2) & 0x03f) | (((uint16_t)ecc[2] << 6) & 0x3c0)]; @@ -456,7 +456,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha /* Let the library code do its magic.*/ res = decode_rs8(rs_decoder, (uint8_t *)buf, par, 512, syn, 0, NULL, 0xff, NULL); if (res > 0) { - DEBUG (MTD_DEBUG_LEVEL0, "rtc_from4_correct_data: " + DEBUG (MTD_DEBUG_LEVEL0, "rtc_from4_correct_data: " "ECC corrected %d errors on read\n", res); } return res; @@ -470,9 +470,9 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha * @state: state or the operation * @status: status code returned from read status * @page: startpage inside the chip, must be called with (page & this->pagemask) - * - * Perform additional error status checks on erase and write failures - * to determine if errors are correctable. For this device, correctable + * + * Perform additional error status checks on erase and write failures + * to determine if errors are correctable. For this device, correctable * 1-bit errors on erase and write are considered acceptable. * * note: see pages 34..37 of data sheet for details. @@ -633,7 +633,7 @@ int __init rtc_from4_init (void) #ifdef RTC_FROM4_HWECC /* We could create the decoder on demand, if memory is a concern. - * This way we have it handy, if an error happens + * This way we have it handy, if an error happens * * Symbolsize is 10 (bits) * Primitve polynomial is x^10+x^3+1 diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 891e3a1b911..d209214b131 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -17,8 +17,9 @@ * 02-May-2005 BJD Reduced hwcontrol decode * 20-Jun-2005 BJD Updated s3c2440 support, fixed timing bug * 08-Jul-2005 BJD Fix OOPS when no platform data supplied + * 20-Oct-2005 BJD Fix timing calculation bug * - * $Id: s3c2410.c,v 1.14 2005/07/06 20:05:06 bjd Exp $ + * $Id: s3c2410.c,v 1.20 2005/11/07 11:14:31 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -48,9 +49,10 @@ #include <linux/kernel.h> #include <linux/string.h> #include <linux/ioport.h> -#include <linux/device.h> +#include <linux/platform_device.h> #include <linux/delay.h> #include <linux/err.h> +#include <linux/slab.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -58,7 +60,6 @@ #include <linux/mtd/partitions.h> #include <asm/io.h> -#include <asm/mach-types.h> #include <asm/hardware/clock.h> #include <asm/arch/regs-nand.h> @@ -124,25 +125,25 @@ static struct s3c2410_nand_info *s3c2410_nand_mtd_toinfo(struct mtd_info *mtd) return s3c2410_nand_mtd_toours(mtd)->info; } -static struct s3c2410_nand_info *to_nand_info(struct device *dev) +static struct s3c2410_nand_info *to_nand_info(struct platform_device *dev) { - return dev_get_drvdata(dev); + return platform_get_drvdata(dev); } -static struct s3c2410_platform_nand *to_nand_plat(struct device *dev) +static struct s3c2410_platform_nand *to_nand_plat(struct platform_device *dev) { - return dev->platform_data; + return dev->dev.platform_data; } /* timing calculations */ -#define NS_IN_KHZ 10000000 +#define NS_IN_KHZ 1000000 static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max) { int result; - result = (wanted * NS_IN_KHZ) / clk; + result = (wanted * clk) / NS_IN_KHZ; result++; pr_debug("result %d from %ld, %d\n", result, clk, wanted); @@ -159,20 +160,22 @@ static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max) return result; } -#define to_ns(ticks,clk) (((clk) * (ticks)) / NS_IN_KHZ) +#define to_ns(ticks,clk) (((ticks) * NS_IN_KHZ) / (unsigned int)(clk)) /* controller setup */ -static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, - struct device *dev) +static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, + struct platform_device *pdev) { - struct s3c2410_platform_nand *plat = to_nand_plat(dev); - unsigned int tacls, twrph0, twrph1; + struct s3c2410_platform_nand *plat = to_nand_plat(pdev); unsigned long clkrate = clk_get_rate(info->clk); + int tacls, twrph0, twrph1; unsigned long cfg; /* calculate the timing information for the controller */ + clkrate /= 1000; /* turn clock into kHz for ease of use */ + if (plat != NULL) { tacls = s3c2410_nand_calc_rate(plat->tacls, clkrate, 4); twrph0 = s3c2410_nand_calc_rate(plat->twrph0, clkrate, 8); @@ -183,16 +186,16 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, twrph0 = 8; twrph1 = 8; } - + if (tacls < 0 || twrph0 < 0 || twrph1 < 0) { printk(KERN_ERR PFX "cannot get timings suitable for board\n"); return -EINVAL; } - printk(KERN_INFO PFX "timing: Tacls %ldns, Twrph0 %ldns, Twrph1 %ldns\n", - to_ns(tacls, clkrate), - to_ns(twrph0, clkrate), - to_ns(twrph1, clkrate)); + printk(KERN_INFO PFX "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n", + tacls, to_ns(tacls, clkrate), + twrph0, to_ns(twrph0, clkrate), + twrph1, to_ns(twrph1, clkrate)); if (!info->is_s3c2440) { cfg = S3C2410_NFCONF_EN; @@ -216,7 +219,7 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) { struct s3c2410_nand_info *info; - struct s3c2410_nand_mtd *nmtd; + struct s3c2410_nand_mtd *nmtd; struct nand_chip *this = mtd->priv; void __iomem *reg; unsigned long cur; @@ -249,7 +252,7 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) writel(cur, reg); } -/* command and control functions +/* command and control functions * * Note, these all use tglx's method of changing the IO_ADDR_W field * to make the code simpler, and use the nand layer's code to issue the @@ -321,7 +324,7 @@ static void s3c2440_nand_hwcontrol(struct mtd_info *mtd, int cmd) static int s3c2410_nand_devready(struct mtd_info *mtd) { struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); - + if (info->is_s3c2440) return readb(info->regs + S3C2440_NFSTAT) & S3C2440_NFSTAT_READY; return readb(info->regs + S3C2410_NFSTAT) & S3C2410_NFSTAT_BUSY; @@ -342,7 +345,7 @@ static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat, if (read_ecc[0] == calc_ecc[0] && read_ecc[1] == calc_ecc[1] && - read_ecc[2] == calc_ecc[2]) + read_ecc[2] == calc_ecc[2]) return 0; /* we curently have no method for correcting the error */ @@ -427,20 +430,20 @@ static void s3c2410_nand_write_buf(struct mtd_info *mtd, /* device management functions */ -static int s3c2410_nand_remove(struct device *dev) +static int s3c2410_nand_remove(struct platform_device *pdev) { - struct s3c2410_nand_info *info = to_nand_info(dev); + struct s3c2410_nand_info *info = to_nand_info(pdev); - dev_set_drvdata(dev, NULL); + platform_set_drvdata(pdev, NULL); - if (info == NULL) + if (info == NULL) return 0; /* first thing we need to do is release all our mtds * and their partitions, then go through freeing the - * resources used + * resources used */ - + if (info->mtds != NULL) { struct s3c2410_nand_mtd *ptr = info->mtds; int mtdno; @@ -504,7 +507,7 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info, /* s3c2410_nand_init_chip * - * init a single instance of an chip + * init a single instance of an chip */ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, @@ -559,10 +562,9 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, * nand layer to look for devices */ -static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440) +static int s3c24xx_nand_probe(struct platform_device *pdev, int is_s3c2440) { - struct platform_device *pdev = to_platform_device(dev); - struct s3c2410_platform_nand *plat = to_nand_plat(dev); + struct s3c2410_platform_nand *plat = to_nand_plat(pdev); struct s3c2410_nand_info *info; struct s3c2410_nand_mtd *nmtd; struct s3c2410_nand_set *sets; @@ -572,26 +574,26 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440) int nr_sets; int setno; - pr_debug("s3c2410_nand_probe(%p)\n", dev); + pr_debug("s3c2410_nand_probe(%p)\n", pdev); info = kmalloc(sizeof(*info), GFP_KERNEL); if (info == NULL) { - printk(KERN_ERR PFX "no memory for flash info\n"); + dev_err(&pdev->dev, "no memory for flash info\n"); err = -ENOMEM; goto exit_error; } memzero(info, sizeof(*info)); - dev_set_drvdata(dev, info); + platform_set_drvdata(pdev, info); spin_lock_init(&info->controller.lock); init_waitqueue_head(&info->controller.wq); /* get the clock source and enable it */ - info->clk = clk_get(dev, "nand"); + info->clk = clk_get(&pdev->dev, "nand"); if (IS_ERR(info->clk)) { - printk(KERN_ERR PFX "failed to get clock"); + dev_err(&pdev->dev, "failed to get clock"); err = -ENOENT; goto exit_error; } @@ -608,27 +610,27 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440) info->area = request_mem_region(res->start, size, pdev->name); if (info->area == NULL) { - printk(KERN_ERR PFX "cannot reserve register region\n"); + dev_err(&pdev->dev, "cannot reserve register region\n"); err = -ENOENT; goto exit_error; } - info->device = dev; + info->device = &pdev->dev; info->platform = plat; info->regs = ioremap(res->start, size); info->is_s3c2440 = is_s3c2440; if (info->regs == NULL) { - printk(KERN_ERR PFX "cannot reserve register region\n"); + dev_err(&pdev->dev, "cannot reserve register region\n"); err = -EIO; goto exit_error; - } + } - printk(KERN_INFO PFX "mapped registers at %p\n", info->regs); + dev_dbg(&pdev->dev, "mapped registers at %p\n", info->regs); /* initialise the hardware */ - err = s3c2410_nand_inithw(info, dev); + err = s3c2410_nand_inithw(info, pdev); if (err != 0) goto exit_error; @@ -642,7 +644,7 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440) size = nr_sets * sizeof(*info->mtds); info->mtds = kmalloc(size, GFP_KERNEL); if (info->mtds == NULL) { - printk(KERN_ERR PFX "failed to allocate mtd storage\n"); + dev_err(&pdev->dev, "failed to allocate mtd storage\n"); err = -ENOMEM; goto exit_error; } @@ -656,7 +658,7 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440) for (setno = 0; setno < nr_sets; setno++, nmtd++) { pr_debug("initialising set %d (%p, info %p)\n", setno, nmtd, info); - + s3c2410_nand_init_chip(info, nmtd, sets); nmtd->scan_res = nand_scan(&nmtd->mtd, @@ -669,12 +671,12 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440) if (sets != NULL) sets++; } - + pr_debug("initialised ok\n"); return 0; exit_error: - s3c2410_nand_remove(dev); + s3c2410_nand_remove(pdev); if (err == 0) err = -EINVAL; @@ -683,42 +685,46 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440) /* driver device registration */ -static int s3c2410_nand_probe(struct device *dev) +static int s3c2410_nand_probe(struct platform_device *dev) { return s3c24xx_nand_probe(dev, 0); } -static int s3c2440_nand_probe(struct device *dev) +static int s3c2440_nand_probe(struct platform_device *dev) { return s3c24xx_nand_probe(dev, 1); } -static struct device_driver s3c2410_nand_driver = { - .name = "s3c2410-nand", - .bus = &platform_bus_type, +static struct platform_driver s3c2410_nand_driver = { .probe = s3c2410_nand_probe, .remove = s3c2410_nand_remove, + .driver = { + .name = "s3c2410-nand", + .owner = THIS_MODULE, + }, }; -static struct device_driver s3c2440_nand_driver = { - .name = "s3c2440-nand", - .bus = &platform_bus_type, +static struct platform_driver s3c2440_nand_driver = { .probe = s3c2440_nand_probe, .remove = s3c2410_nand_remove, + .driver = { + .name = "s3c2440-nand", + .owner = THIS_MODULE, + }, }; static int __init s3c2410_nand_init(void) { printk("S3C24XX NAND Driver, (c) 2004 Simtec Electronics\n"); - driver_register(&s3c2440_nand_driver); - return driver_register(&s3c2410_nand_driver); + platform_driver_register(&s3c2440_nand_driver); + return platform_driver_register(&s3c2410_nand_driver); } static void __exit s3c2410_nand_exit(void) { - driver_unregister(&s3c2440_nand_driver); - driver_unregister(&s3c2410_nand_driver); + platform_driver_unregister(&s3c2440_nand_driver); + platform_driver_unregister(&s3c2410_nand_driver); } module_init(s3c2410_nand_init); diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 88b5b5b40b4..1924a4f137c 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -3,7 +3,7 @@ * * Copyright (C) 2004 Richard Purdie * - * $Id: sharpsl.c,v 1.4 2005/01/23 11:09:19 rpurdie Exp $ + * $Id: sharpsl.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $ * * Based on Sharp's NAND driver sharp_sl.c * @@ -76,14 +76,14 @@ static struct mtd_partition sharpsl_nand_default_partition_info[] = { }, }; -/* +/* * hardware specific access to control-lines */ static void sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd) { switch (cmd) { - case NAND_CTL_SETCLE: + case NAND_CTL_SETCLE: writeb(readb(FLASHCTL) | FLCLE, FLASHCTL); break; case NAND_CTL_CLRCLE: @@ -97,10 +97,10 @@ sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd) writeb(readb(FLASHCTL) & ~FLALE, FLASHCTL); break; - case NAND_CTL_SETNCE: + case NAND_CTL_SETNCE: writeb(readb(FLASHCTL) & ~(FLCE0|FLCE1), FLASHCTL); break; - case NAND_CTL_CLRNCE: + case NAND_CTL_CLRNCE: writeb(readb(FLASHCTL) | (FLCE0|FLCE1), FLASHCTL); break; } @@ -115,6 +115,23 @@ static struct nand_bbt_descr sharpsl_bbt = { .pattern = scan_ff_pattern }; +static struct nand_bbt_descr sharpsl_akita_bbt = { + .options = 0, + .offs = 4, + .len = 1, + .pattern = scan_ff_pattern +}; + +static struct nand_oobinfo akita_oobinfo = { + .useecc = MTD_NANDECC_AUTOPLACE, + .eccbytes = 24, + .eccpos = { + 0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11, + 0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23, + 0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37}, + .oobfree = { {0x08, 0x09} } +}; + static int sharpsl_nand_dev_ready(struct mtd_info* mtd) { @@ -160,7 +177,7 @@ sharpsl_nand_init(void) printk ("Unable to allocate SharpSL NAND MTD device structure.\n"); return -ENOMEM; } - + /* map physical adress */ sharpsl_io_base = ioremap(sharpsl_phys_base, 0x1000); if(!sharpsl_io_base){ @@ -168,7 +185,7 @@ sharpsl_nand_init(void) kfree(sharpsl_mtd); return -EIO; } - + /* Get pointer to private data */ this = (struct nand_chip *) (&sharpsl_mtd[1]); @@ -194,10 +211,14 @@ sharpsl_nand_init(void) this->chip_delay = 15; /* set eccmode using hardware ECC */ this->eccmode = NAND_ECC_HW3_256; + this->badblock_pattern = &sharpsl_bbt; + if (machine_is_akita() || machine_is_borzoi()) { + this->badblock_pattern = &sharpsl_akita_bbt; + this->autooob = &akita_oobinfo; + } this->enable_hwecc = sharpsl_nand_enable_hwecc; this->calculate_ecc = sharpsl_nand_calculate_ecc; this->correct_data = nand_correct_data; - this->badblock_pattern = &sharpsl_bbt; /* Scan to find existence of the device */ err=nand_scan(sharpsl_mtd,1); @@ -211,7 +232,7 @@ sharpsl_nand_init(void) sharpsl_mtd->name = "sharpsl-nand"; nr_partitions = parse_mtd_partitions(sharpsl_mtd, part_probes, &sharpsl_partition_info, 0); - + if (nr_partitions <= 0) { nr_partitions = DEFAULT_NUM_PARTITIONS; sharpsl_partition_info = sharpsl_nand_default_partition_info; @@ -230,7 +251,7 @@ sharpsl_nand_init(void) } } - if (machine_is_husky() || machine_is_borzoi()) { + if (machine_is_husky() || machine_is_borzoi() || machine_is_akita()) { /* Need to use small eraseblock size for backward compatibility */ sharpsl_mtd->flags |= MTD_NO_VIRTBLOCKS; } diff --git a/drivers/mtd/nand/spia.c b/drivers/mtd/nand/spia.c index b777c412b75..32541cbb010 100644 --- a/drivers/mtd/nand/spia.c +++ b/drivers/mtd/nand/spia.c @@ -8,7 +8,7 @@ * to controllines (due to change in nand.c) * page_cache added * - * $Id: spia.c,v 1.24 2004/11/04 12:53:10 gleixner Exp $ + * $Id: spia.c,v 1.25 2005/11/07 11:14:31 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -82,7 +82,7 @@ const static struct mtd_partition partition_info[] = { #define NUM_PARTITIONS 2 -/* +/* * hardware specific access to control-lines */ static void spia_hwcontrol(struct mtd_info *mtd, int cmd){ @@ -137,7 +137,7 @@ int __init spia_init (void) /* Set address of hardware control function */ this->hwcontrol = spia_hwcontrol; /* 15 us command delay time */ - this->chip_delay = 15; + this->chip_delay = 15; /* Scan to find existence of the device */ if (nand_scan (spia_mtd, 1)) { diff --git a/drivers/mtd/nand/toto.c b/drivers/mtd/nand/toto.c index 52c808fb5fa..7609c43cb3e 100644 --- a/drivers/mtd/nand/toto.c +++ b/drivers/mtd/nand/toto.c @@ -15,7 +15,7 @@ * This is a device driver for the NAND flash device found on the * TI fido board. It supports 32MiB and 64MiB cards * - * $Id: toto.c,v 1.4 2004/10/05 13:50:20 gleixner Exp $ + * $Id: toto.c,v 1.5 2005/11/07 11:14:31 gleixner Exp $ */ #include <linux/slab.h> @@ -57,7 +57,7 @@ static unsigned long toto_io_base = OMAP_FLASH_1_BASE; #endif #define T_NAND_CTL_SETNCE(iob) gpiosetout(NAND_NCE, 0) #define T_NAND_CTL_CLRNCE(iob) gpiosetout(NAND_NCE, NAND_NCE) - + /* * Define partitions for flash devices */ @@ -91,7 +91,7 @@ static struct mtd_partition partition_info32M[] = { #define NUM_PARTITIONS32M 3 #define NUM_PARTITIONS64M 4 -/* +/* * hardware specific access to control-lines */ @@ -146,7 +146,7 @@ int __init toto_init (void) this->hwcontrol = toto_hwcontrol; this->dev_ready = NULL; /* 25 us command delay time */ - this->chip_delay = 30; + this->chip_delay = 30; this->eccmode = NAND_ECC_SOFT; /* Scan to find existance of the device */ @@ -157,10 +157,10 @@ int __init toto_init (void) /* Register the partitions */ switch(toto_mtd->size){ - case SZ_64M: add_mtd_partitions(toto_mtd, partition_info64M, NUM_PARTITIONS64M); break; - case SZ_32M: add_mtd_partitions(toto_mtd, partition_info32M, NUM_PARTITIONS32M); break; + case SZ_64M: add_mtd_partitions(toto_mtd, partition_info64M, NUM_PARTITIONS64M); break; + case SZ_32M: add_mtd_partitions(toto_mtd, partition_info32M, NUM_PARTITIONS32M); break; default: { - printk (KERN_WARNING "Unsupported Nand device\n"); + printk (KERN_WARNING "Unsupported Nand device\n"); err = -ENXIO; goto out_buf; } @@ -170,9 +170,9 @@ int __init toto_init (void) archflashwp(0,0); /* open up flash for writing */ goto out; - + out_buf: - kfree (this->data_buf); + kfree (this->data_buf); out_mtd: kfree (toto_mtd); out: @@ -194,7 +194,7 @@ static void __exit toto_cleanup (void) /* stop flash writes */ archflashwp(0,1); - + /* release gpios to system */ gpiorelease(NAND_MASK); } |