diff options
Diffstat (limited to 'drivers/mtd/maps/ipaq-flash.c')
| -rw-r--r-- | drivers/mtd/maps/ipaq-flash.c | 460 |
1 files changed, 0 insertions, 460 deletions
diff --git a/drivers/mtd/maps/ipaq-flash.c b/drivers/mtd/maps/ipaq-flash.c deleted file mode 100644 index 76708e796b7..00000000000 --- a/drivers/mtd/maps/ipaq-flash.c +++ /dev/null @@ -1,460 +0,0 @@ -/* - * Flash memory access on iPAQ Handhelds (either SA1100 or PXA250 based) - * - * (C) 2000 Nicolas Pitre <nico@fluxnic.net> - * (C) 2002 Hewlett-Packard Company <jamey.hicks@hp.com> - * (C) 2003 Christian Pellegrin <chri@ascensit.com>, <chri@infis.univ.ts.it>: concatenation of multiple flashes - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/spinlock.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <asm/page.h> -#include <asm/mach-types.h> -#include <asm/system.h> -#include <asm/errno.h> - -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> -#ifdef CONFIG_MTD_CONCAT -#include <linux/mtd/concat.h> -#endif - -#include <mach/hardware.h> -#include <mach/h3600.h> -#include <asm/io.h> - - -#ifndef CONFIG_IPAQ_HANDHELD -#error This is for iPAQ Handhelds only -#endif -#ifdef CONFIG_SA1100_JORNADA56X - -static void jornada56x_set_vpp(struct map_info *map, int vpp) -{ - if (vpp) - GPSR = GPIO_GPIO26; - else - GPCR = GPIO_GPIO26; - GPDR |= GPIO_GPIO26; -} - -#endif - -#ifdef CONFIG_SA1100_JORNADA720 - -static void jornada720_set_vpp(struct map_info *map, int vpp) -{ - if (vpp) - PPSR |= 0x80; - else - PPSR &= ~0x80; - PPDR |= 0x80; -} - -#endif - -#define MAX_IPAQ_CS 2 /* Number of CS we are going to test */ - -#define IPAQ_MAP_INIT(X) \ - { \ - name: "IPAQ flash " X, \ - } - - -static struct map_info ipaq_map[MAX_IPAQ_CS] = { - IPAQ_MAP_INIT("bank 1"), - IPAQ_MAP_INIT("bank 2") -}; - -static struct mtd_info *my_sub_mtd[MAX_IPAQ_CS] = { - NULL, - NULL -}; - -/* - * Here are partition information for all known IPAQ-based devices. - * See include/linux/mtd/partitions.h for definition of the mtd_partition - * structure. - * - * The *_max_flash_size is the maximum possible mapped flash size which - * is not necessarily the actual flash size. It must be no more than - * the value specified in the "struct map_desc *_io_desc" mapping - * definition for the corresponding machine. - * - * Please keep these in alphabetical order, and formatted as per existing - * entries. Thanks. - */ - -#ifdef CONFIG_IPAQ_HANDHELD -static unsigned long h3xxx_max_flash_size = 0x04000000; -static struct mtd_partition h3xxx_partitions[] = { - { - name: "H3XXX boot firmware", -#ifndef CONFIG_LAB - size: 0x00040000, -#else - size: 0x00080000, -#endif - offset: 0, -#ifndef CONFIG_LAB - mask_flags: MTD_WRITEABLE, /* force read-only */ -#endif - }, - { - name: "H3XXX root jffs2", -#ifndef CONFIG_LAB - size: 0x2000000 - 2*0x40000, /* Warning, this is fixed later */ - offset: 0x00040000, -#else - size: 0x2000000 - 0x40000 - 0x80000, /* Warning, this is fixed later */ - offset: 0x00080000, -#endif - }, - { - name: "asset", - size: 0x40000, - offset: 0x2000000 - 0x40000, /* Warning, this is fixed later */ - mask_flags: MTD_WRITEABLE, /* force read-only */ - } -}; - -#ifndef CONFIG_MTD_CONCAT -static struct mtd_partition h3xxx_partitions_bank2[] = { - /* this is used only on 2 CS machines when concat is not present */ - { - name: "second H3XXX root jffs2", - size: 0x1000000 - 0x40000, /* Warning, this is fixed later */ - offset: 0x00000000, - }, - { - name: "second asset", - size: 0x40000, - offset: 0x1000000 - 0x40000, /* Warning, this is fixed later */ - mask_flags: MTD_WRITEABLE, /* force read-only */ - } -}; -#endif - -static DEFINE_SPINLOCK(ipaq_vpp_lock); - -static void h3xxx_set_vpp(struct map_info *map, int vpp) -{ - static int nest = 0; - - spin_lock(&ipaq_vpp_lock); - if (vpp) - nest++; - else - nest--; - if (nest) - assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, 1); - else - assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, 0); - spin_unlock(&ipaq_vpp_lock); -} - -#endif - -#if defined(CONFIG_SA1100_JORNADA56X) || defined(CONFIG_SA1100_JORNADA720) -static unsigned long jornada_max_flash_size = 0x02000000; -static struct mtd_partition jornada_partitions[] = { - { - name: "Jornada boot firmware", - size: 0x00040000, - offset: 0, - mask_flags: MTD_WRITEABLE, /* force read-only */ - }, { - name: "Jornada root jffs2", - size: MTDPART_SIZ_FULL, - offset: 0x00040000, - } -}; -#endif - - -static struct mtd_partition *parsed_parts; -static struct mtd_info *mymtd; - -static unsigned long cs_phys[] = { -#ifdef CONFIG_ARCH_SA1100 - SA1100_CS0_PHYS, - SA1100_CS1_PHYS, - SA1100_CS2_PHYS, - SA1100_CS3_PHYS, - SA1100_CS4_PHYS, - SA1100_CS5_PHYS, -#else - PXA_CS0_PHYS, - PXA_CS1_PHYS, - PXA_CS2_PHYS, - PXA_CS3_PHYS, - PXA_CS4_PHYS, - PXA_CS5_PHYS, -#endif -}; - -static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; - -static int __init h1900_special_case(void); - -static int __init ipaq_mtd_init(void) -{ - struct mtd_partition *parts = NULL; - int nb_parts = 0; - int parsed_nr_parts = 0; - const char *part_type; - int i; /* used when we have >1 flash chips */ - unsigned long tot_flashsize = 0; /* used when we have >1 flash chips */ - - /* Default flash bankwidth */ - // ipaq_map.bankwidth = (MSC0 & MSC_RBW) ? 2 : 4; - - if (machine_is_h1900()) - { - /* For our intents, the h1900 is not a real iPAQ, so we special-case it. */ - return h1900_special_case(); - } - - if (machine_is_h3100() || machine_is_h1900()) - for(i=0; i<MAX_IPAQ_CS; i++) - ipaq_map[i].bankwidth = 2; - else - for(i=0; i<MAX_IPAQ_CS; i++) - ipaq_map[i].bankwidth = 4; - - /* - * Static partition definition selection - */ - part_type = "static"; - - simple_map_init(&ipaq_map[0]); - simple_map_init(&ipaq_map[1]); - -#ifdef CONFIG_IPAQ_HANDHELD - if (machine_is_ipaq()) { - parts = h3xxx_partitions; - nb_parts = ARRAY_SIZE(h3xxx_partitions); - for(i=0; i<MAX_IPAQ_CS; i++) { - ipaq_map[i].size = h3xxx_max_flash_size; - ipaq_map[i].set_vpp = h3xxx_set_vpp; - ipaq_map[i].phys = cs_phys[i]; - ipaq_map[i].virt = ioremap(cs_phys[i], 0x04000000); - if (machine_is_h3100 () || machine_is_h1900()) - ipaq_map[i].bankwidth = 2; - } - if (machine_is_h3600()) { - /* No asset partition here */ - h3xxx_partitions[1].size += 0x40000; - nb_parts--; - } - } -#endif -#ifdef CONFIG_ARCH_H5400 - if (machine_is_h5400()) { - ipaq_map[0].size = 0x02000000; - ipaq_map[1].size = 0x02000000; - ipaq_map[1].phys = 0x02000000; - ipaq_map[1].virt = ipaq_map[0].virt + 0x02000000; - } -#endif -#ifdef CONFIG_ARCH_H1900 - if (machine_is_h1900()) { - ipaq_map[0].size = 0x00400000; - ipaq_map[1].size = 0x02000000; - ipaq_map[1].phys = 0x00080000; - ipaq_map[1].virt = ipaq_map[0].virt + 0x00080000; - } -#endif - -#ifdef CONFIG_SA1100_JORNADA56X - if (machine_is_jornada56x()) { - parts = jornada_partitions; - nb_parts = ARRAY_SIZE(jornada_partitions); - ipaq_map[0].size = jornada_max_flash_size; - ipaq_map[0].set_vpp = jornada56x_set_vpp; - ipaq_map[0].virt = (__u32)ioremap(0x0, 0x04000000); - } -#endif -#ifdef CONFIG_SA1100_JORNADA720 - if (machine_is_jornada720()) { - parts = jornada_partitions; - nb_parts = ARRAY_SIZE(jornada_partitions); - ipaq_map[0].size = jornada_max_flash_size; - ipaq_map[0].set_vpp = jornada720_set_vpp; - } -#endif - - - if (machine_is_ipaq()) { /* for iPAQs only */ - for(i=0; i<MAX_IPAQ_CS; i++) { - printk(KERN_NOTICE "iPAQ flash: probing %d-bit flash bus, window=%lx with CFI.\n", ipaq_map[i].bankwidth*8, ipaq_map[i].virt); - my_sub_mtd[i] = do_map_probe("cfi_probe", &ipaq_map[i]); - if (!my_sub_mtd[i]) { - printk(KERN_NOTICE "iPAQ flash: probing %d-bit flash bus, window=%lx with JEDEC.\n", ipaq_map[i].bankwidth*8, ipaq_map[i].virt); - my_sub_mtd[i] = do_map_probe("jedec_probe", &ipaq_map[i]); - } - if (!my_sub_mtd[i]) { - printk(KERN_NOTICE "iPAQ flash: failed to find flash.\n"); - if (i) - break; - else - return -ENXIO; - } else - printk(KERN_NOTICE "iPAQ flash: found %d bytes\n", my_sub_mtd[i]->size); - - /* do we really need this debugging? --joshua 20030703 */ - // printk("my_sub_mtd[%d]=%p\n", i, my_sub_mtd[i]); - my_sub_mtd[i]->owner = THIS_MODULE; - tot_flashsize += my_sub_mtd[i]->size; - } -#ifdef CONFIG_MTD_CONCAT - /* fix the asset location */ -# ifdef CONFIG_LAB - h3xxx_partitions[1].size = tot_flashsize - 0x40000 - 0x80000 /* extra big boot block */; -# else - h3xxx_partitions[1].size = tot_flashsize - 2 * 0x40000; -# endif - h3xxx_partitions[2].offset = tot_flashsize - 0x40000; - /* and concat the devices */ - mymtd = mtd_concat_create(&my_sub_mtd[0], i, - "ipaq"); - if (!mymtd) { - printk("Cannot create iPAQ concat device\n"); - return -ENXIO; - } -#else - mymtd = my_sub_mtd[0]; - - /* - *In the very near future, command line partition parsing - * will use the device name as 'mtd-id' instead of a value - * passed to the parse_cmdline_partitions() routine. Since - * the bootldr says 'ipaq', make sure it continues to work. - */ - mymtd->name = "ipaq"; - - if ((machine_is_h3600())) { -# ifdef CONFIG_LAB - h3xxx_partitions[1].size = my_sub_mtd[0]->size - 0x80000; -# else - h3xxx_partitions[1].size = my_sub_mtd[0]->size - 0x40000; -# endif - nb_parts = 2; - } else { -# ifdef CONFIG_LAB - h3xxx_partitions[1].size = my_sub_mtd[0]->size - 0x40000 - 0x80000; /* extra big boot block */ -# else - h3xxx_partitions[1].size = my_sub_mtd[0]->size - 2*0x40000; -# endif - h3xxx_partitions[2].offset = my_sub_mtd[0]->size - 0x40000; - } - - if (my_sub_mtd[1]) { -# ifdef CONFIG_LAB - h3xxx_partitions_bank2[0].size = my_sub_mtd[1]->size - 0x80000; -# else - h3xxx_partitions_bank2[0].size = my_sub_mtd[1]->size - 0x40000; -# endif - h3xxx_partitions_bank2[1].offset = my_sub_mtd[1]->size - 0x40000; - } -#endif - } - else { - /* - * Now let's probe for the actual flash. Do it here since - * specific machine settings might have been set above. - */ - printk(KERN_NOTICE "IPAQ flash: probing %d-bit flash bus, window=%lx\n", ipaq_map[0].bankwidth*8, ipaq_map[0].virt); - mymtd = do_map_probe("cfi_probe", &ipaq_map[0]); - if (!mymtd) - return -ENXIO; - mymtd->owner = THIS_MODULE; - } - - - /* - * Dynamic partition selection stuff (might override the static ones) - */ - - i = parse_mtd_partitions(mymtd, part_probes, &parsed_parts, 0); - - if (i > 0) { - nb_parts = parsed_nr_parts = i; - parts = parsed_parts; - part_type = "dynamic"; - } - - if (!parts) { - printk(KERN_NOTICE "IPAQ flash: no partition info available, registering whole flash at once\n"); - add_mtd_device(mymtd); -#ifndef CONFIG_MTD_CONCAT - if (my_sub_mtd[1]) - add_mtd_device(my_sub_mtd[1]); -#endif - } else { - printk(KERN_NOTICE "Using %s partition definition\n", part_type); - add_mtd_partitions(mymtd, parts, nb_parts); -#ifndef CONFIG_MTD_CONCAT - if (my_sub_mtd[1]) - add_mtd_partitions(my_sub_mtd[1], h3xxx_partitions_bank2, ARRAY_SIZE(h3xxx_partitions_bank2)); -#endif - } - - return 0; -} - -static void __exit ipaq_mtd_cleanup(void) -{ - int i; - - if (mymtd) { - del_mtd_partitions(mymtd); -#ifndef CONFIG_MTD_CONCAT - if (my_sub_mtd[1]) - del_mtd_partitions(my_sub_mtd[1]); -#endif - map_destroy(mymtd); -#ifdef CONFIG_MTD_CONCAT - for(i=0; i<MAX_IPAQ_CS; i++) -#else - for(i=1; i<MAX_IPAQ_CS; i++) -#endif - { - if (my_sub_mtd[i]) - map_destroy(my_sub_mtd[i]); - } - kfree(parsed_parts); - } -} - -static int __init h1900_special_case(void) -{ - /* The iPAQ h1900 is a special case - it has weird ROM. */ - simple_map_init(&ipaq_map[0]); - ipaq_map[0].size = 0x80000; - ipaq_map[0].set_vpp = h3xxx_set_vpp; - ipaq_map[0].phys = 0x0; - ipaq_map[0].virt = ioremap(0x0, 0x04000000); - ipaq_map[0].bankwidth = 2; - - printk(KERN_NOTICE "iPAQ flash: probing %d-bit flash bus, window=%lx with JEDEC.\n", ipaq_map[0].bankwidth*8, ipaq_map[0].virt); - mymtd = do_map_probe("jedec_probe", &ipaq_map[0]); - if (!mymtd) - return -ENODEV; - add_mtd_device(mymtd); - printk(KERN_NOTICE "iPAQ flash: registered h1910 flash\n"); - - return 0; -} - -module_init(ipaq_mtd_init); -module_exit(ipaq_mtd_cleanup); - -MODULE_AUTHOR("Jamey Hicks"); -MODULE_DESCRIPTION("IPAQ CFI map driver"); -MODULE_LICENSE("MIT"); |