diff options
Diffstat (limited to 'drivers/mtd/maps/cstm_mips_ixx.c')
| -rw-r--r-- | drivers/mtd/maps/cstm_mips_ixx.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/drivers/mtd/maps/cstm_mips_ixx.c b/drivers/mtd/maps/cstm_mips_ixx.c deleted file mode 100644 index df2c38ef105..00000000000 --- a/drivers/mtd/maps/cstm_mips_ixx.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * $Id: cstm_mips_ixx.c,v 1.14 2005/11/07 11:14:26 gleixner Exp $ - * - * Mapping of a custom board with both AMD CFI and JEDEC flash in partitions. - * Config with both CFI and JEDEC device support. - * - * Basically physmap.c with the addition of partitions and - * an array of mapping info to accomodate more than one flash type per board. - * - * Copyright 2000 MontaVista Software Inc. - * - * 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 the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <asm/io.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> -#include <linux/delay.h> - -#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) -#define CC_GCR 0xB4013818 -#define CC_GPBCR 0xB401380A -#define CC_GPBDR 0xB4013808 -#define CC_M68K_DEVICE 1 -#define CC_M68K_FUNCTION 6 -#define CC_CONFADDR 0xB8004000 -#define CC_CONFDATA 0xB8004004 -#define CC_FC_FCR 0xB8002004 -#define CC_FC_DCR 0xB8002008 -#define CC_GPACR 0xB4013802 -#define CC_GPAICR 0xB4013804 -#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ - -#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) -void cstm_mips_ixx_set_vpp(struct map_info *map,int vpp) -{ - static DEFINE_SPINLOCK(vpp_lock); - static int vpp_count = 0; - unsigned long flags; - - spin_lock_irqsave(&vpp_lock, flags); - - if (vpp) { - if (!vpp_count++) { - __u16 data; - __u8 data1; - static u8 first = 1; - - // Set GPIO port B pin3 to high - data = *(__u16 *)(CC_GPBCR); - data = (data & 0xff0f) | 0x0040; - *(__u16 *)CC_GPBCR = data; - *(__u8 *)CC_GPBDR = (*(__u8*)CC_GPBDR) | 0x08; - if (first) { - first = 0; - /* need to have this delay for first - enabling vpp after powerup */ - udelay(40); - } - } - } else { - if (!--vpp_count) { - __u16 data; - - // Set GPIO port B pin3 to high - data = *(__u16 *)(CC_GPBCR); - data = (data & 0xff3f) | 0x0040; - *(__u16 *)CC_GPBCR = data; - *(__u8 *)CC_GPBDR = (*(__u8*)CC_GPBDR) & 0xf7; - } - } - spin_unlock_irqrestore(&vpp_lock, flags); -} -#endif - -/* board and partition description */ - -#define MAX_PHYSMAP_PARTITIONS 8 -struct cstm_mips_ixx_info { - char *name; - unsigned long window_addr; - unsigned long window_size; - int bankwidth; - int num_partitions; -}; - -#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) -#define PHYSMAP_NUMBER 1 // number of board desc structs needed, one per contiguous flash type -const struct cstm_mips_ixx_info cstm_mips_ixx_board_desc[PHYSMAP_NUMBER] = -{ - { // 28F128J3A in 2x16 configuration - "big flash", // name - 0x08000000, // window_addr - 0x02000000, // window_size - 4, // bankwidth - 1, // num_partitions - } - -}; -static struct mtd_partition cstm_mips_ixx_partitions[PHYSMAP_NUMBER][MAX_PHYSMAP_PARTITIONS] = { -{ // 28F128J3A in 2x16 configuration - { - .name = "main partition ", - .size = 0x02000000, // 128 x 2 x 128k byte sectors - .offset = 0, - }, -}, -}; -#else /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ -#define PHYSMAP_NUMBER 1 // number of board desc structs needed, one per contiguous flash type -const struct cstm_mips_ixx_info cstm_mips_ixx_board_desc[PHYSMAP_NUMBER] = -{ - { - "MTD flash", // name - CONFIG_MTD_CSTM_MIPS_IXX_START, // window_addr - CONFIG_MTD_CSTM_MIPS_IXX_LEN, // window_size - CONFIG_MTD_CSTM_MIPS_IXX_BUSWIDTH, // bankwidth - 1, // num_partitions - }, - -}; -static struct mtd_partition cstm_mips_ixx_partitions[PHYSMAP_NUMBER][MAX_PHYSMAP_PARTITIONS] = { -{ - { - .name = "main partition", - .size = CONFIG_MTD_CSTM_MIPS_IXX_LEN, - .offset = 0, - }, -}, -}; -#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ - -struct map_info cstm_mips_ixx_map[PHYSMAP_NUMBER]; - -int __init init_cstm_mips_ixx(void) -{ - int i; - int jedec; - struct mtd_info *mymtd; - struct mtd_partition *parts; - - /* Initialize mapping */ - for (i=0;i<PHYSMAP_NUMBER;i++) { - printk(KERN_NOTICE "cstm_mips_ixx flash device: 0x%lx at 0x%lx\n", - cstm_mips_ixx_board_desc[i].window_size, cstm_mips_ixx_board_desc[i].window_addr); - - - cstm_mips_ixx_map[i].phys = cstm_mips_ixx_board_desc[i].window_addr; - cstm_mips_ixx_map[i].virt = ioremap(cstm_mips_ixx_board_desc[i].window_addr, cstm_mips_ixx_board_desc[i].window_size); - if (!cstm_mips_ixx_map[i].virt) { - int j = 0; - printk(KERN_WARNING "Failed to ioremap\n"); - for (j = 0; j < i; j++) { - if (cstm_mips_ixx_map[j].virt) { - iounmap(cstm_mips_ixx_map[j].virt); - cstm_mips_ixx_map[j].virt = NULL; - } - } - return -EIO; - } - cstm_mips_ixx_map[i].name = cstm_mips_ixx_board_desc[i].name; - cstm_mips_ixx_map[i].size = cstm_mips_ixx_board_desc[i].window_size; - cstm_mips_ixx_map[i].bankwidth = cstm_mips_ixx_board_desc[i].bankwidth; -#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) - cstm_mips_ixx_map[i].set_vpp = cstm_mips_ixx_set_vpp; -#endif - simple_map_init(&cstm_mips_ixx_map[i]); - //printk(KERN_NOTICE "cstm_mips_ixx: ioremap is %x\n",(unsigned int)(cstm_mips_ixx_map[i].virt)); - } - -#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) - setup_ITE_IVR_flash(); -#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ - - for (i=0;i<PHYSMAP_NUMBER;i++) { - parts = &cstm_mips_ixx_partitions[i][0]; - jedec = 0; - mymtd = (struct mtd_info *)do_map_probe("cfi_probe", &cstm_mips_ixx_map[i]); - //printk(KERN_NOTICE "phymap %d cfi_probe: mymtd is %x\n",i,(unsigned int)mymtd); - if (!mymtd) { - jedec = 1; - mymtd = (struct mtd_info *)do_map_probe("jedec", &cstm_mips_ixx_map[i]); - printk(KERN_NOTICE "cstm_mips_ixx %d jedec: mymtd is %x\n",i,(unsigned int)mymtd); - } - if (mymtd) { - mymtd->owner = THIS_MODULE; - - cstm_mips_ixx_map[i].map_priv_2 = (unsigned long)mymtd; - add_mtd_partitions(mymtd, parts, cstm_mips_ixx_board_desc[i].num_partitions); - } - else { - for (i = 0; i < PHYSMAP_NUMBER; i++) { - if (cstm_mips_ixx_map[i].virt) { - iounmap(cstm_mips_ixx_map[i].virt); - cstm_mips_ixx_map[i].virt = NULL; - } - } - return -ENXIO; - } - } - return 0; -} - -static void __exit cleanup_cstm_mips_ixx(void) -{ - int i; - struct mtd_info *mymtd; - - for (i=0;i<PHYSMAP_NUMBER;i++) { - mymtd = (struct mtd_info *)cstm_mips_ixx_map[i].map_priv_2; - if (mymtd) { - del_mtd_partitions(mymtd); - map_destroy(mymtd); - } - if (cstm_mips_ixx_map[i].virt) { - iounmap((void *)cstm_mips_ixx_map[i].virt); - cstm_mips_ixx_map[i].virt = 0; - } - } -} -#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) -void PCISetULongByOffset(__u32 DevNumber, __u32 FuncNumber, __u32 Offset, __u32 data) -{ - __u32 offset; - - offset = ( unsigned long )( 0x80000000 | ( DevNumber << 11 ) + ( FuncNumber << 8 ) + Offset) ; - - *(__u32 *)CC_CONFADDR = offset; - *(__u32 *)CC_CONFDATA = data; -} -void setup_ITE_IVR_flash() -{ - __u32 size, base; - - size = 0x0e000000; // 32MiB - base = (0x08000000) >> 8 >>1; // Bug: we must shift one more bit - - /* need to set ITE flash to 32 bits instead of default 8 */ -#ifdef CONFIG_MIPS_IVR - *(__u32 *)CC_FC_FCR = 0x55; - *(__u32 *)CC_GPACR = 0xfffc; -#else - *(__u32 *)CC_FC_FCR = 0x77; -#endif - /* turn bursting off */ - *(__u32 *)CC_FC_DCR = 0x0; - - /* setup for one chip 4 byte PCI access */ - PCISetULongByOffset(CC_M68K_DEVICE, CC_M68K_FUNCTION, 0x60, size | base); - PCISetULongByOffset(CC_M68K_DEVICE, CC_M68K_FUNCTION, 0x64, 0x02); -} -#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ - -module_init(init_cstm_mips_ixx); -module_exit(cleanup_cstm_mips_ixx); - - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>"); -MODULE_DESCRIPTION("MTD map driver for ITE 8172G and Globespan IVR boards"); |