/* * Flash memory access on SA11x0 based devices *  * (C) 2000 Nicolas Pitre <nico@cam.org> *  * $Id: sa1100-flash.c,v 1.2 2007/09/21 03:09:24 quy Exp $ */#include <linux/config.h>#include <linux/module.h>#include <linux/types.h>#include <linux/ioport.h>#include <linux/kernel.h>#include <linux/init.h>#include <linux/errno.h>#include <linux/slab.h>#include <linux/mtd/mtd.h>#include <linux/mtd/map.h>#include <linux/mtd/partitions.h>#include <linux/mtd/concat.h>#include <asm/hardware.h>#include <asm/mach-types.h>#include <asm/io.h>#include <asm/sizes.h>#include <asm/arch/h3600.h>#ifndef CONFIG_ARCH_SA1100#error This is for SA1100 architecture only#endif/* * This isnt complete yet, so... */#define CONFIG_MTD_SA1100_STATICMAP 1#ifdef CONFIG_MTD_SA1100_STATICMAP/* * Here are partition information for all known SA1100-based devices. * See include/linux/mtd/partitions.h for definition of the mtd_partition * structure. * * Please note: *  1. We no longer support static flash mappings via the machine io_desc *     structure. *  2. The flash size given should be the largest flash size that can *     be accommodated. * * The MTD layer will detect flash chip aliasing and reduce the size of * the map accordingly. * * Please keep these in alphabetical order, and formatted as per existing * entries.  Thanks. */#ifdef CONFIG_SA1100_ADSBITSYstatic struct mtd_partition adsbitsy_partitions[] = {	{		.name		= "bootROM",		.size		= 0x80000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "zImage",		.size		= 0x100000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "ramdisk.gz",		.size		= 0x300000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "User FS",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};#endif#ifdef CONFIG_SA1100_ASSABET/* Phase 4 Assabet has two 28F160B3 flash parts in bank 0: */static struct mtd_partition assabet4_partitions[] = {	{		.name		= "bootloader",		.size		= 0x00020000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "bootloader params",		.size		= 0x00020000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "jffs",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};/* Phase 5 Assabet has two 28F128J3A flash parts in bank 0: */static struct mtd_partition assabet5_partitions[] = {	{		.name		= "bootloader",		.size		= 0x00040000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "bootloader params",		.size		= 0x00040000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "jffs",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};#define assabet_partitions	assabet5_partitions#endif#ifdef CONFIG_SA1100_BADGE4/* * 1 x Intel 28F320C3 Advanced+ Boot Block Flash (32 Mi bit) *   Eight 4 KiW Parameter Bottom Blocks (64 KiB) *   Sixty-three 32 KiW Main Blocks (4032 Ki b) * * <or> * * 1 x Intel 28F640C3 Advanced+ Boot Block Flash (64 Mi bit) *   Eight 4 KiW Parameter Bottom Blocks (64 KiB) *   One-hundred-twenty-seven 32 KiW Main Blocks (8128 Ki b) */static struct mtd_partition badge4_partitions[] = {	{		.name		= "BLOB boot loader",		.offset		= 0,		.size		= 0x0000A000	}, {		.name		= "params",		.offset		= MTDPART_OFS_APPEND,		.size		= 0x00006000	}, {		.name		= "root",		.offset		= MTDPART_OFS_APPEND,		.size		= MTDPART_SIZ_FULL	}};#endif#ifdef CONFIG_SA1100_CERF#ifdef CONFIG_SA1100_CERF_FLASH_32MB#  define CERF_FLASH_SIZE	0x02000000#elif defined CONFIG_SA1100_CERF_FLASH_16MB#  define CERF_FLASH_SIZE	0x01000000#elif defined CONFIG_SA1100_CERF_FLASH_8MB#  define CERF_FLASH_SIZE	0x00800000#else#  error "Undefined flash size for CERF in sa1100-flash.c"#endifstatic struct mtd_partition cerf_partitions[] = {	{		.name		= "Bootloader",		.size		= 0x00020000,		.offset		= 0x00000000,	}, {		.name		= "Params",		.size		= 0x00040000,		.offset		= 0x00020000,	}, {		.name		= "Kernel",		.size		= 0x00100000,		.offset		= 0x00060000,	}, {		.name		= "Filesystem",		.size		= CERF_FLASH_SIZE-0x00160000,		.offset		= 0x00160000,	}};#endif#ifdef CONFIG_SA1100_CONSUSstatic struct mtd_partition consus_partitions[] = {	{		.name		= "Consus boot firmware",		.offset		= 0,		.size		= 0x00040000,		.mask_flags	= MTD_WRITABLE, /* force read-only */	}, {		.name		= "Consus kernel",		.offset		= 0x00040000,		.size		= 0x00100000,		.mask_flags	= 0,	}, {		.name		= "Consus disk",		.offset		= 0x00140000,		/* The rest (up to 16M) for jffs.  We could put 0 and		   make it find the size automatically, but right now		   i have 32 megs.  jffs will use all 32 megs if given		   the chance, and this leads to horrible problems		   when you try to re-flash the image because blob		   won't erase the whole partition. */		.size		= 0x01000000 - 0x00140000,		.mask_flags	= 0,	}, {		/* this disk is a secondary disk, which can be used as		   needed, for simplicity, make it the size of the other		   consus partition, although realistically it could be		   the remainder of the disk (depending on the file		   system used) */		 .name		= "Consus disk2",		 .offset	= 0x01000000,		 .size		= 0x01000000 - 0x00140000,		 .mask_flags	= 0,	}};#endif#ifdef CONFIG_SA1100_FLEXANET/* Flexanet has two 28F128J3A flash parts in bank 0: */#define FLEXANET_FLASH_SIZE		0x02000000static struct mtd_partition flexanet_partitions[] = {	{		.name		= "bootloader",		.size		= 0x00040000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "bootloader params",		.size		= 0x00040000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "kernel",		.size		= 0x000C0000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "altkernel",		.size		= 0x000C0000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "root",		.size		= 0x00400000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "free1",		.size		= 0x00300000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "free2",		.size		= 0x00300000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "free3",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,	}};#endif#ifdef CONFIG_SA1100_FREEBIRDstatic struct mtd_partition freebird_partitions[] = {#ifdef CONFIG_SA1100_FREEBIRD_NEW	{		.name		= "firmware",		.size		= 0x00040000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "kernel",		.size		= 0x00080000,		.offset		= 0x00040000,	}, {		.name		= "params",		.size		= 0x00040000,		.offset		= 0x000C0000,	}, {		.name		= "initrd",		.size		= 0x00100000,		.offset		= 0x00100000,	}, {		.name		= "root cramfs",		.size		= 0x00300000,		.offset		= 0x00200000,	}, {		.name		= "usr cramfs",		.size		= 0x00C00000,		.offset		= 0x00500000,	}, {		.name		= "local",		.size		= MTDPART_SIZ_FULL,		.offset		= 0x01100000,	}#else	{		.size		= 0x00040000,		.offset		= 0,	}, {		.size		= 0x000c0000,		.offset		= MTDPART_OFS_APPEND,	}, {		.size		= 0x00400000,		.offset		= MTDPART_OFS_APPEND,	}, {		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}#endif};#endif#ifdef CONFIG_SA1100_FRODO/* Frodo has 2 x 16M 28F128J3A flash chips in bank 0: */static struct mtd_partition frodo_partitions[] ={	{		.name		= "bootloader",		.size		= 0x00040000,		.offset		= 0x00000000,		.mask_flags	= MTD_WRITEABLE	}, {		.name		= "bootloader params",		.size		= 0x00040000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE	}, {		.name		= "kernel",		.size		= 0x00100000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE	}, {		.name		= "ramdisk",		.size		= 0x00400000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE	}, {		.name		= "file system",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND	}};#endif#ifdef CONFIG_SA1100_GRAPHICSCLIENTstatic struct mtd_partition graphicsclient_partitions[] = {	{		.name		= "zImage",		.size		= 0x100000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "ramdisk.gz",		.size		= 0x300000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "User FS",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};#endif#ifdef CONFIG_SA1100_GRAPHICSMASTERstatic struct mtd_partition graphicsmaster_partitions[] = {	{		.name		= "zImage",		.size		= 0x100000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	},	{		.name		= "ramdisk.gz",		.size		= 0x300000,		.offset		= MTDPART_OFS_APPEND,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	},	{		.name		= "User FS",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};#endif#ifdef CONFIG_SA1100_H3XXXstatic struct mtd_partition h3xxx_partitions[] = {	{		.name		= "H3XXX boot firmware",		.size		= 0x00040000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {#ifdef CONFIG_MTD_2PARTS_IPAQ		.name		= "H3XXX root jffs2",		.size		= MTDPART_SIZ_FULL,		.offset		= 0x00040000,#else		.name		= "H3XXX kernel",		.size		= 0x00080000,		.offset		= 0x00040000,	}, {		.name		= "H3XXX params",		.size		= 0x00040000,		.offset		= 0x000C0000,	}, {#ifdef CONFIG_JFFS2_FS		.name		= "H3XXX root jffs2",		.size		= MTDPART_SIZ_FULL,		.offset		= 0x00100000,#else		.name		= "H3XXX initrd",		.size		= 0x00100000,		.offset		= 0x00100000,	}, {		.name		= "H3XXX root cramfs",		.size		= 0x00300000,		.offset		= 0x00200000,	}, {		.name		= "H3XXX usr cramfs",		.size		= 0x00800000,		.offset		= 0x00500000,	}, {		.name		= "H3XXX usr local",		.size		= MTDPART_SIZ_FULL,		.offset		= 0x00d00000,#endif#endif	}};static void h3xxx_set_vpp(struct map_info *map, int vpp){	assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, vpp);}#else#define h3xxx_set_vpp NULL#endif#ifdef CONFIG_SA1100_HACKKITstatic struct mtd_partition hackkit_partitions[] = {	{		.name		= "BLOB",		.size		= 0x00040000,		.offset		= 0x00000000,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "config",		.size		= 0x00040000,		.offset		= MTDPART_OFS_APPEND,	}, {		.name		= "kernel",		.size		= 0x00100000,		.offset		= MTDPART_OFS_APPEND,	}, {		.name		= "initrd",		.size		= 0x00180000,		.offset		= MTDPART_OFS_APPEND,	}, {		.name		= "rootfs",		.size		= 0x700000,		.offset		= MTDPART_OFS_APPEND,	}, {		.name		= "data",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};#endif#ifdef CONFIG_SA1100_HUW_WEBPANELstatic struct mtd_partition huw_webpanel_partitions[] = {	{		.name		= "Loader",		.size		= 0x00040000,		.offset		= 0,	}, {		.name		= "Sector 1",		.size		= 0x00040000,		.offset		= MTDPART_OFS_APPEND,	}, {		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};#endif#ifdef CONFIG_SA1100_JORNADA56Xstatic struct mtd_partition jornada56x_partitions[] = {	{		.name		= "bootldr",		.size		= 0x00040000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,	}, {		.name		= "rootfs",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};static void jornada56x_set_vpp(struct map_info *map, int vpp){	if (vpp)		GPSR = GPIO_GPIO26;	else		GPCR = GPIO_GPIO26;	GPDR |= GPIO_GPIO26;}#else#define jornada56x_set_vpp NULL#endif#ifdef CONFIG_SA1100_JORNADA720static struct mtd_partition jornada720_partitions[] = {	{		.name		= "JORNADA720 boot firmware",		.size		= 0x00040000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "JORNADA720 kernel",		.size		= 0x000c0000,		.offset		= 0x00040000,	}, {		.name		= "JORNADA720 params",		.size		= 0x00040000,		.offset		= 0x00100000,	}, {		.name		= "JORNADA720 initrd",		.size		= 0x00100000,		.offset		= 0x00140000,	}, {		.name		= "JORNADA720 root cramfs",		.size		= 0x00300000,		.offset		= 0x00240000,	}, {		.name		= "JORNADA720 usr cramfs",		.size		= 0x00800000,		.offset		= 0x00540000,	}, {		.name		= "JORNADA720 usr local",		.size		= 0,  /* will expand to the end of the flash */		.offset		= 0x00d00000,	}};static void jornada720_set_vpp(struct map_info *map, int vpp){	if (vpp)		PPSR |= 0x80;	else		PPSR &= ~0x80;	PPDR |= 0x80;}#else#define jornada720_set_vpp NULL#endif#ifdef CONFIG_SA1100_PANGOLINstatic struct mtd_partition pangolin_partitions[] = {	{		.name		= "boot firmware",		.size		= 0x00080000,		.offset		= 0x00000000,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "kernel",		.size		= 0x00100000,		.offset		= 0x00080000,	}, {		.name		= "initrd",		.size		= 0x00280000,		.offset		= 0x00180000,	}, {		.name		= "initrd-test",		.size		= 0x03C00000,		.offset		= 0x00400000,	}};#endif#ifdef CONFIG_SA1100_PT_SYSTEM3/* erase size is 0x40000 == 256k partitions have to have this boundary */static struct mtd_partition system3_partitions[] = {	{		.name		= "BLOB",		.size		= 0x00040000,		.offset		= 0x00000000,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "config",		.size		= 0x00040000,		.offset		= MTDPART_OFS_APPEND,	}, {		.name		= "kernel",		.size		= 0x00100000,		.offset		= MTDPART_OFS_APPEND,	}, {		.name		= "root",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND,	}};#endif#ifdef CONFIG_SA1100_SHANNONstatic struct mtd_partition shannon_partitions[] = {	{		.name		= "BLOB boot loader",		.offset		= 0,		.size		= 0x20000	},	{		.name		= "kernel",		.offset		= MTDPART_OFS_APPEND,		.size		= 0xe0000	},	{ 		.name		= "initrd",		.offset		= MTDPART_OFS_APPEND,			.size		= MTDPART_SIZ_FULL	}};#endif#ifdef CONFIG_SA1100_SHERMANstatic struct mtd_partition sherman_partitions[] = {	{		.size		= 0x50000,		.offset		= 0,	}, {		.size		= 0x70000,		.offset		= MTDPART_OFS_APPEND,	}, {		.size		= 0x600000,		.offset		= MTDPART_OFS_APPEND,	}, {		.size		= 0xA0000,		.offset		= MTDPART_OFS_APPEND,	}};#endif#ifdef CONFIG_SA1100_SIMPADstatic struct mtd_partition simpad_partitions[] = {	{		.name		= "SIMpad boot firmware",		.size		= 0x00080000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "SIMpad kernel",		.size		= 0x00100000,		.offset		= MTDPART_OFS_APPEND,	}, {#ifdef CONFIG_ROOT_CRAMFS		.name		= "SIMpad root cramfs",		.size	     	=0x00D80000,		.offset		= MTDPART_OFS_APPEND	}, {		.name		= "SIMpad local jffs2",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND#else		.name		= "SIMpad root jffs2",		.size		= MTDPART_SIZ_FULL,		.offset		= MTDPART_OFS_APPEND#endif	}};#endif /* CONFIG_SA1100_SIMPAD */#ifdef CONFIG_SA1100_STORKstatic struct mtd_partition stork_partitions[] = {	{		.name		= "STORK boot firmware",		.size		= 0x00040000,		.offset		= 0,		.mask_flags	= MTD_WRITEABLE,  /* force read-only */	}, {		.name		= "STORK params",		.size		= 0x00040000,