diff options
Diffstat (limited to 'packages/linux/gumstix-kernel-2.6.21/flash.patch')
| -rw-r--r-- | packages/linux/gumstix-kernel-2.6.21/flash.patch | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/packages/linux/gumstix-kernel-2.6.21/flash.patch b/packages/linux/gumstix-kernel-2.6.21/flash.patch new file mode 100644 index 0000000000..a50a382f7a --- /dev/null +++ b/packages/linux/gumstix-kernel-2.6.21/flash.patch @@ -0,0 +1,171 @@ +Index: linux-2.6.21gum/drivers/mtd/maps/gumstix-flash.c +=================================================================== +--- /dev/null ++++ linux-2.6.21gum/drivers/mtd/maps/gumstix-flash.c +@@ -0,0 +1,136 @@ ++/* ++ * Map driver for the Gumstix platform ++ * ++ * Author: Craig Hughes ++ * ++ * 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 ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/map.h> ++#include <linux/mtd/partitions.h> ++#include <asm/io.h> ++#include <asm/hardware.h> ++#include <asm/arch/gumstix.h> ++ ++ ++#define ROM_ADDR 0x00000000 ++#define FLASH_ADDR 0x00000000 ++ ++#define WINDOW_SIZE 64*1024*1024 ++ ++static struct map_info gumstix_flash_maps[1] = { { ++ .name = "Gumstix Flash ROM", ++ .size = WINDOW_SIZE, ++ .phys = FLASH_ADDR, ++ .bankwidth = 2, ++} }; ++ ++static struct mtd_partition gumstix_flash_partitions[] = { ++ { ++ .name = "Bootloader", ++ .size = 0x00040000, ++ .offset = FLASH_ADDR ++ },{ ++ .name = "RootFS", ++ .size = MTDPART_SIZ_FULL, ++ .offset = MTDPART_OFS_APPEND ++ } ++}; ++ ++static struct mtd_info *mymtds[1]; ++static struct mtd_partition *parsed_parts[1]; ++static int nr_parsed_parts[1]; ++ ++static const char *probes[] = { NULL }; ++ ++static int __init gumstix_flashmap_init(void) ++{ ++ int ret = 0, i; ++ ++ for (i = 0; i < 1; i++) { ++ gumstix_flash_maps[i].virt = ioremap(gumstix_flash_maps[i].phys, WINDOW_SIZE); ++ if (!gumstix_flash_maps[i].virt) { ++ printk(KERN_WARNING "Failed to ioremap %s\n", gumstix_flash_maps[i].name); ++ if (!ret) ++ ret = -ENOMEM; ++ continue; ++ } ++ simple_map_init(&gumstix_flash_maps[i]); ++ ++ printk(KERN_NOTICE "Probing %s at physical address 0x%08lx (%d-bit bankwidth)\n", ++ gumstix_flash_maps[i].name, gumstix_flash_maps[i].phys, ++ gumstix_flash_maps[i].bankwidth * 8); ++ ++ mymtds[i] = do_map_probe("cfi_probe", &gumstix_flash_maps[i]); ++ ++ if (!mymtds[i]) { ++ iounmap((void *)gumstix_flash_maps[i].virt); ++ if (gumstix_flash_maps[i].cached) ++ iounmap(gumstix_flash_maps[i].cached); ++ if (!ret) ++ ret = -EIO; ++ continue; ++ } ++ mymtds[i]->owner = THIS_MODULE; ++ ++ ret = parse_mtd_partitions(mymtds[i], probes, ++ &parsed_parts[i], 0); ++ ++ if (ret > 0) ++ nr_parsed_parts[i] = ret; ++ } ++ ++ if (!mymtds[0]) ++ return ret; ++ ++ for (i = 0; i < 1; i++) { ++ if (!mymtds[i]) { ++ printk(KERN_WARNING "%s is absent. Skipping\n", gumstix_flash_maps[i].name); ++ } else if (nr_parsed_parts[i]) { ++ add_mtd_partitions(mymtds[i], parsed_parts[i], nr_parsed_parts[i]); ++ } else if (!i) { ++ printk("Using static partitions on %s\n", gumstix_flash_maps[i].name); ++ add_mtd_partitions(mymtds[i], gumstix_flash_partitions, ARRAY_SIZE(gumstix_flash_partitions)); ++ } else { ++ printk("Registering %s as whole device\n", gumstix_flash_maps[i].name); ++ add_mtd_device(mymtds[i]); ++ } ++ } ++ return 0; ++} ++ ++static void __exit gumstix_flashmap_cleanup(void) ++{ ++ int i; ++ for (i = 0; i < 1; i++) { ++ if (!mymtds[i]) ++ continue; ++ ++ if (nr_parsed_parts[i] || !i) ++ del_mtd_partitions(mymtds[i]); ++ else ++ del_mtd_device(mymtds[i]); ++ ++ map_destroy(mymtds[i]); ++ iounmap((void *)gumstix_flash_maps[i].virt); ++ if (gumstix_flash_maps[i].cached) ++ iounmap(gumstix_flash_maps[i].cached); ++ ++ if (parsed_parts[i]) ++ kfree(parsed_parts[i]); ++ } ++} ++ ++module_init(gumstix_flashmap_init); ++module_exit(gumstix_flashmap_cleanup); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Gumstix, Inc. <gumstix-users@lists.sf.net>"); ++MODULE_DESCRIPTION("MTD map driver for the Gumstix Platform"); +Index: linux-2.6.21gum/drivers/mtd/maps/Kconfig +=================================================================== +--- linux-2.6.21gum.orig/drivers/mtd/maps/Kconfig ++++ linux-2.6.21gum/drivers/mtd/maps/Kconfig +@@ -131,6 +131,13 @@ config MTD_SBC_GXX + More info at + <http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>. + ++config MTD_GUMSTIX ++ tristate "CFI Flash device mapped on Gumstix" ++ depends on ARCH_GUMSTIX && MTD_CFI_INTELEXT && MTD_PARTITIONS ++ help ++ This provides a driver for the on-board flash of the Gumstix ++ single board computers. ++ + config MTD_LUBBOCK + tristate "CFI Flash device mapped on Intel Lubbock XScale eval board" + depends on ARCH_LUBBOCK && MTD_CFI_INTELEXT && MTD_PARTITIONS +Index: linux-2.6.21gum/drivers/mtd/maps/Makefile +=================================================================== +--- linux-2.6.21gum.orig/drivers/mtd/maps/Makefile ++++ linux-2.6.21gum/drivers/mtd/maps/Makefile +@@ -21,6 +21,7 @@ obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o + obj-$(CONFIG_MTD_CK804XROM) += ck804xrom.o + obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o + obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o ++obj-$(CONFIG_MTD_GUMSTIX) += gumstix-flash.o + obj-$(CONFIG_MTD_MAINSTONE) += mainstone-flash.o + obj-$(CONFIG_MTD_MBX860) += mbx860.o + obj-$(CONFIG_MTD_CEIVA) += ceiva.o |