diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/mtd/cfi_flash.c')
| -rw-r--r-- | qemu/roms/u-boot/drivers/mtd/cfi_flash.c | 2418 |
1 files changed, 0 insertions, 2418 deletions
diff --git a/qemu/roms/u-boot/drivers/mtd/cfi_flash.c b/qemu/roms/u-boot/drivers/mtd/cfi_flash.c deleted file mode 100644 index a389cd101..000000000 --- a/qemu/roms/u-boot/drivers/mtd/cfi_flash.c +++ /dev/null @@ -1,2418 +0,0 @@ -/* - * (C) Copyright 2002-2004 - * Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com - * - * Copyright (C) 2003 Arabella Software Ltd. - * Yuli Barcohen <yuli@arabellasw.com> - * - * Copyright (C) 2004 - * Ed Okerson - * - * Copyright (C) 2006 - * Tolunay Orkun <listmember@orkun.us> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* The DEBUG define must be before common to enable debugging */ -/* #define DEBUG */ - -#include <common.h> -#include <asm/processor.h> -#include <asm/io.h> -#include <asm/byteorder.h> -#include <asm/unaligned.h> -#include <environment.h> -#include <mtd/cfi_flash.h> -#include <watchdog.h> - -/* - * This file implements a Common Flash Interface (CFI) driver for - * U-Boot. - * - * The width of the port and the width of the chips are determined at - * initialization. These widths are used to calculate the address for - * access CFI data structures. - * - * References - * JEDEC Standard JESD68 - Common Flash Interface (CFI) - * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes - * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets - * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet - * AMD CFI Specification, Release 2.0 December 1, 2001 - * AMD/Spansion Application Note: Migration from Single-byte to Three-byte - * Device IDs, Publication Number 25538 Revision A, November 8, 2001 - * - * Define CONFIG_SYS_WRITE_SWAPPED_DATA, if you have to swap the Bytes between - * reading and writing ... (yes there is such a Hardware). - */ - -static uint flash_offset_cfi[2] = { FLASH_OFFSET_CFI, FLASH_OFFSET_CFI_ALT }; -#ifdef CONFIG_FLASH_CFI_MTD -static uint flash_verbose = 1; -#else -#define flash_verbose 1 -#endif - -flash_info_t flash_info[CFI_MAX_FLASH_BANKS]; /* FLASH chips info */ - -/* - * Check if chip width is defined. If not, start detecting with 8bit. - */ -#ifndef CONFIG_SYS_FLASH_CFI_WIDTH -#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_8BIT -#endif - -/* - * 0xffff is an undefined value for the configuration register. When - * this value is returned, the configuration register shall not be - * written at all (default mode). - */ -static u16 cfi_flash_config_reg(int i) -{ -#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS - return ((u16 [])CONFIG_SYS_CFI_FLASH_CONFIG_REGS)[i]; -#else - return 0xffff; -#endif -} - -#if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT) -int cfi_flash_num_flash_banks = CONFIG_SYS_MAX_FLASH_BANKS_DETECT; -#endif - -static phys_addr_t __cfi_flash_bank_addr(int i) -{ - return ((phys_addr_t [])CONFIG_SYS_FLASH_BANKS_LIST)[i]; -} -phys_addr_t cfi_flash_bank_addr(int i) - __attribute__((weak, alias("__cfi_flash_bank_addr"))); - -static unsigned long __cfi_flash_bank_size(int i) -{ -#ifdef CONFIG_SYS_FLASH_BANKS_SIZES - return ((unsigned long [])CONFIG_SYS_FLASH_BANKS_SIZES)[i]; -#else - return 0; -#endif -} -unsigned long cfi_flash_bank_size(int i) - __attribute__((weak, alias("__cfi_flash_bank_size"))); - -static void __flash_write8(u8 value, void *addr) -{ - __raw_writeb(value, addr); -} - -static void __flash_write16(u16 value, void *addr) -{ - __raw_writew(value, addr); -} - -static void __flash_write32(u32 value, void *addr) -{ - __raw_writel(value, addr); -} - -static void __flash_write64(u64 value, void *addr) -{ - /* No architectures currently implement __raw_writeq() */ - *(volatile u64 *)addr = value; -} - -static u8 __flash_read8(void *addr) -{ - return __raw_readb(addr); -} - -static u16 __flash_read16(void *addr) -{ - return __raw_readw(addr); -} - -static u32 __flash_read32(void *addr) -{ - return __raw_readl(addr); -} - -static u64 __flash_read64(void *addr) -{ - /* No architectures currently implement __raw_readq() */ - return *(volatile u64 *)addr; -} - -#ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS -void flash_write8(u8 value, void *addr)__attribute__((weak, alias("__flash_write8"))); -void flash_write16(u16 value, void *addr)__attribute__((weak, alias("__flash_write16"))); -void flash_write32(u32 value, void *addr)__attribute__((weak, alias("__flash_write32"))); -void flash_write64(u64 value, void *addr)__attribute__((weak, alias("__flash_write64"))); -u8 flash_read8(void *addr)__attribute__((weak, alias("__flash_read8"))); -u16 flash_read16(void *addr)__attribute__((weak, alias("__flash_read16"))); -u32 flash_read32(void *addr)__attribute__((weak, alias("__flash_read32"))); -u64 flash_read64(void *addr)__attribute__((weak, alias("__flash_read64"))); -#else -#define flash_write8 __flash_write8 -#define flash_write16 __flash_write16 -#define flash_write32 __flash_write32 -#define flash_write64 __flash_write64 -#define flash_read8 __flash_read8 -#define flash_read16 __flash_read16 -#define flash_read32 __flash_read32 -#define flash_read64 __flash_read64 -#endif - -/*----------------------------------------------------------------------- - */ -#if defined(CONFIG_ENV_IS_IN_FLASH) || defined(CONFIG_ENV_ADDR_REDUND) || (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) -flash_info_t *flash_get_info(ulong base) -{ - int i; - flash_info_t *info; - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { - info = &flash_info[i]; - if (info->size && info->start[0] <= base && - base <= info->start[0] + info->size - 1) - return info; - } - - return NULL; -} -#endif - -unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect) -{ - if (sect != (info->sector_count - 1)) - return info->start[sect + 1] - info->start[sect]; - else - return info->start[0] + info->size - info->start[sect]; -} - -/*----------------------------------------------------------------------- - * create an address based on the offset and the port width - */ -static inline void * -flash_map (flash_info_t * info, flash_sect_t sect, uint offset) -{ - unsigned int byte_offset = offset * info->portwidth; - - return (void *)(info->start[sect] + byte_offset); -} - -static inline void flash_unmap(flash_info_t *info, flash_sect_t sect, - unsigned int offset, void *addr) -{ -} - -/*----------------------------------------------------------------------- - * make a proper sized command based on the port and chip widths - */ -static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf) -{ - int i; - int cword_offset; - int cp_offset; -#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - u32 cmd_le = cpu_to_le32(cmd); -#endif - uchar val; - uchar *cp = (uchar *) cmdbuf; - - for (i = info->portwidth; i > 0; i--){ - cword_offset = (info->portwidth-i)%info->chipwidth; -#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - cp_offset = info->portwidth - i; - val = *((uchar*)&cmd_le + cword_offset); -#else - cp_offset = i - 1; - val = *((uchar*)&cmd + sizeof(u32) - cword_offset - 1); -#endif - cp[cp_offset] = (cword_offset >= sizeof(u32)) ? 0x00 : val; - } -} - -#ifdef DEBUG -/*----------------------------------------------------------------------- - * Debug support - */ -static void print_longlong (char *str, unsigned long long data) -{ - int i; - char *cp; - - cp = (char *) &data; - for (i = 0; i < 8; i++) - sprintf (&str[i * 2], "%2.2x", *cp++); -} - -static void flash_printqry (struct cfi_qry *qry) -{ - u8 *p = (u8 *)qry; - int x, y; - - for (x = 0; x < sizeof(struct cfi_qry); x += 16) { - debug("%02x : ", x); - for (y = 0; y < 16; y++) - debug("%2.2x ", p[x + y]); - debug(" "); - for (y = 0; y < 16; y++) { - unsigned char c = p[x + y]; - if (c >= 0x20 && c <= 0x7e) - debug("%c", c); - else - debug("."); - } - debug("\n"); - } -} -#endif - - -/*----------------------------------------------------------------------- - * read a character at a port width address - */ -static inline uchar flash_read_uchar (flash_info_t * info, uint offset) -{ - uchar *cp; - uchar retval; - - cp = flash_map (info, 0, offset); -#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - retval = flash_read8(cp); -#else - retval = flash_read8(cp + info->portwidth - 1); -#endif - flash_unmap (info, 0, offset, cp); - return retval; -} - -/*----------------------------------------------------------------------- - * read a word at a port width address, assume 16bit bus - */ -static inline ushort flash_read_word (flash_info_t * info, uint offset) -{ - ushort *addr, retval; - - addr = flash_map (info, 0, offset); - retval = flash_read16 (addr); - flash_unmap (info, 0, offset, addr); - return retval; -} - - -/*----------------------------------------------------------------------- - * read a long word by picking the least significant byte of each maximum - * port size word. Swap for ppc format. - */ -static ulong flash_read_long (flash_info_t * info, flash_sect_t sect, - uint offset) -{ - uchar *addr; - ulong retval; - -#ifdef DEBUG - int x; -#endif - addr = flash_map (info, sect, offset); - -#ifdef DEBUG - debug ("long addr is at %p info->portwidth = %d\n", addr, - info->portwidth); - for (x = 0; x < 4 * info->portwidth; x++) { - debug ("addr[%x] = 0x%x\n", x, flash_read8(addr + x)); - } -#endif -#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - retval = ((flash_read8(addr) << 16) | - (flash_read8(addr + info->portwidth) << 24) | - (flash_read8(addr + 2 * info->portwidth)) | - (flash_read8(addr + 3 * info->portwidth) << 8)); -#else - retval = ((flash_read8(addr + 2 * info->portwidth - 1) << 24) | - (flash_read8(addr + info->portwidth - 1) << 16) | - (flash_read8(addr + 4 * info->portwidth - 1) << 8) | - (flash_read8(addr + 3 * info->portwidth - 1))); -#endif - flash_unmap(info, sect, offset, addr); - - return retval; -} - -/* - * Write a proper sized command to the correct address - */ -void flash_write_cmd (flash_info_t * info, flash_sect_t sect, - uint offset, u32 cmd) -{ - - void *addr; - cfiword_t cword; - - addr = flash_map (info, sect, offset); - flash_make_cmd (info, cmd, &cword); - switch (info->portwidth) { - case FLASH_CFI_8BIT: - debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr, cmd, - cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - flash_write8(cword.c, addr); - break; - case FLASH_CFI_16BIT: - debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr, - cmd, cword.w, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - flash_write16(cword.w, addr); - break; - case FLASH_CFI_32BIT: - debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr, - cmd, cword.l, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - flash_write32(cword.l, addr); - break; - case FLASH_CFI_64BIT: -#ifdef DEBUG - { - char str[20]; - - print_longlong (str, cword.ll); - - debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n", - addr, cmd, str, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - } -#endif - flash_write64(cword.ll, addr); - break; - } - - /* Ensure all the instructions are fully finished */ - sync(); - - flash_unmap(info, sect, offset, addr); -} - -static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect) -{ - flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_UNLOCK_START); - flash_write_cmd (info, sect, info->addr_unlock2, AMD_CMD_UNLOCK_ACK); -} - -/*----------------------------------------------------------------------- - */ -static int flash_isequal (flash_info_t * info, flash_sect_t sect, - uint offset, uchar cmd) -{ - void *addr; - cfiword_t cword; - int retval; - - addr = flash_map (info, sect, offset); - flash_make_cmd (info, cmd, &cword); - - debug ("is= cmd %x(%c) addr %p ", cmd, cmd, addr); - switch (info->portwidth) { - case FLASH_CFI_8BIT: - debug ("is= %x %x\n", flash_read8(addr), cword.c); - retval = (flash_read8(addr) == cword.c); - break; - case FLASH_CFI_16BIT: - debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w); - retval = (flash_read16(addr) == cword.w); - break; - case FLASH_CFI_32BIT: - debug ("is= %8.8x %8.8lx\n", flash_read32(addr), cword.l); - retval = (flash_read32(addr) == cword.l); - break; - case FLASH_CFI_64BIT: -#ifdef DEBUG - { - char str1[20]; - char str2[20]; - - print_longlong (str1, flash_read64(addr)); - print_longlong (str2, cword.ll); - debug ("is= %s %s\n", str1, str2); - } -#endif - retval = (flash_read64(addr) == cword.ll); - break; - default: - retval = 0; - break; - } - flash_unmap(info, sect, offset, addr); - - return retval; -} - -/*----------------------------------------------------------------------- - */ -static int flash_isset (flash_info_t * info, flash_sect_t sect, - uint offset, uchar cmd) -{ - void *addr; - cfiword_t cword; - int retval; - - addr = flash_map (info, sect, offset); - flash_make_cmd (info, cmd, &cword); - switch (info->portwidth) { - case FLASH_CFI_8BIT: - retval = ((flash_read8(addr) & cword.c) == cword.c); - break; - case FLASH_CFI_16BIT: - retval = ((flash_read16(addr) & cword.w) == cword.w); - break; - case FLASH_CFI_32BIT: - retval = ((flash_read32(addr) & cword.l) == cword.l); - break; - case FLASH_CFI_64BIT: - retval = ((flash_read64(addr) & cword.ll) == cword.ll); - break; - default: - retval = 0; - break; - } - flash_unmap(info, sect, offset, addr); - - return retval; -} - -/*----------------------------------------------------------------------- - */ -static int flash_toggle (flash_info_t * info, flash_sect_t sect, - uint offset, uchar cmd) -{ - void *addr; - cfiword_t cword; - int retval; - - addr = flash_map (info, sect, offset); - flash_make_cmd (info, cmd, &cword); - switch (info->portwidth) { - case FLASH_CFI_8BIT: - retval = flash_read8(addr) != flash_read8(addr); - break; - case FLASH_CFI_16BIT: - retval = flash_read16(addr) != flash_read16(addr); - break; - case FLASH_CFI_32BIT: - retval = flash_read32(addr) != flash_read32(addr); - break; - case FLASH_CFI_64BIT: - retval = ( (flash_read32( addr ) != flash_read32( addr )) || - (flash_read32(addr+4) != flash_read32(addr+4)) ); - break; - default: - retval = 0; - break; - } - flash_unmap(info, sect, offset, addr); - - return retval; -} - -/* - * flash_is_busy - check to see if the flash is busy - * - * This routine checks the status of the chip and returns true if the - * chip is busy. - */ -static int flash_is_busy (flash_info_t * info, flash_sect_t sect) -{ - int retval; - - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_STANDARD: - case CFI_CMDSET_INTEL_EXTENDED: - retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE); - break; - case CFI_CMDSET_AMD_STANDARD: - case CFI_CMDSET_AMD_EXTENDED: -#ifdef CONFIG_FLASH_CFI_LEGACY - case CFI_CMDSET_AMD_LEGACY: -#endif - retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE); - break; - default: - retval = 0; - } - debug ("flash_is_busy: %d\n", retval); - return retval; -} - -/*----------------------------------------------------------------------- - * wait for XSR.7 to be set. Time out with an error if it does not. - * This routine does not set the flash to read-array mode. - */ -static int flash_status_check (flash_info_t * info, flash_sect_t sector, - ulong tout, char *prompt) -{ - ulong start; - -#if CONFIG_SYS_HZ != 1000 - if ((ulong)CONFIG_SYS_HZ > 100000) - tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */ - else - tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000); -#endif - - /* Wait for command completion */ -#ifdef CONFIG_SYS_LOW_RES_TIMER - reset_timer(); -#endif - start = get_timer (0); - WATCHDOG_RESET(); - while (flash_is_busy (info, sector)) { - if (get_timer (start) > tout) { - printf ("Flash %s timeout at address %lx data %lx\n", - prompt, info->start[sector], - flash_read_long (info, sector, 0)); - flash_write_cmd (info, sector, 0, info->cmd_reset); - udelay(1); - return ERR_TIMOUT; - } - udelay (1); /* also triggers watchdog */ - } - return ERR_OK; -} - -/*----------------------------------------------------------------------- - * Wait for XSR.7 to be set, if it times out print an error, otherwise - * do a full status check. - * - * This routine sets the flash to read-array mode. - */ -static int flash_full_status_check (flash_info_t * info, flash_sect_t sector, - ulong tout, char *prompt) -{ - int retcode; - - retcode = flash_status_check (info, sector, tout, prompt); - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_EXTENDED: - case CFI_CMDSET_INTEL_STANDARD: - if ((retcode != ERR_OK) - && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) { - retcode = ERR_INVAL; - printf ("Flash %s error at address %lx\n", prompt, - info->start[sector]); - if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS | - FLASH_STATUS_PSLBS)) { - puts ("Command Sequence Error.\n"); - } else if (flash_isset (info, sector, 0, - FLASH_STATUS_ECLBS)) { - puts ("Block Erase Error.\n"); - retcode = ERR_NOT_ERASED; - } else if (flash_isset (info, sector, 0, - FLASH_STATUS_PSLBS)) { - puts ("Locking Error\n"); - } - if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) { - puts ("Block locked.\n"); - retcode = ERR_PROTECTED; - } - if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS)) - puts ("Vpp Low Error.\n"); - } - flash_write_cmd (info, sector, 0, info->cmd_reset); - udelay(1); - break; - default: - break; - } - return retcode; -} - -static int use_flash_status_poll(flash_info_t *info) -{ -#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL - if (info->vendor == CFI_CMDSET_AMD_EXTENDED || - info->vendor == CFI_CMDSET_AMD_STANDARD) - return 1; -#endif - return 0; -} - -static int flash_status_poll(flash_info_t *info, void *src, void *dst, - ulong tout, char *prompt) -{ -#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL - ulong start; - int ready; - -#if CONFIG_SYS_HZ != 1000 - if ((ulong)CONFIG_SYS_HZ > 100000) - tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */ - else - tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000); -#endif - - /* Wait for command completion */ -#ifdef CONFIG_SYS_LOW_RES_TIMER - reset_timer(); -#endif - start = get_timer(0); - WATCHDOG_RESET(); - while (1) { - switch (info->portwidth) { - case FLASH_CFI_8BIT: - ready = flash_read8(dst) == flash_read8(src); - break; - case FLASH_CFI_16BIT: - ready = flash_read16(dst) == flash_read16(src); - break; - case FLASH_CFI_32BIT: - ready = flash_read32(dst) == flash_read32(src); - break; - case FLASH_CFI_64BIT: - ready = flash_read64(dst) == flash_read64(src); - break; - default: - ready = 0; - break; - } - if (ready) - break; - if (get_timer(start) > tout) { - printf("Flash %s timeout at address %lx data %lx\n", - prompt, (ulong)dst, (ulong)flash_read8(dst)); - return ERR_TIMOUT; - } - udelay(1); /* also triggers watchdog */ - } -#endif /* CONFIG_SYS_CFI_FLASH_STATUS_POLL */ - return ERR_OK; -} - -/*----------------------------------------------------------------------- - */ -static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c) -{ -#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - unsigned short w; - unsigned int l; - unsigned long long ll; -#endif - - switch (info->portwidth) { - case FLASH_CFI_8BIT: - cword->c = c; - break; - case FLASH_CFI_16BIT: -#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - w = c; - w <<= 8; - cword->w = (cword->w >> 8) | w; -#else - cword->w = (cword->w << 8) | c; -#endif - break; - case FLASH_CFI_32BIT: -#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - l = c; - l <<= 24; - cword->l = (cword->l >> 8) | l; -#else - cword->l = (cword->l << 8) | c; -#endif - break; - case FLASH_CFI_64BIT: -#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA) - ll = c; - ll <<= 56; - cword->ll = (cword->ll >> 8) | ll; -#else - cword->ll = (cword->ll << 8) | c; -#endif - break; - } -} - -/* - * Loop through the sector table starting from the previously found sector. - * Searches forwards or backwards, dependent on the passed address. - */ -static flash_sect_t find_sector (flash_info_t * info, ulong addr) -{ - static flash_sect_t saved_sector; /* previously found sector */ - static flash_info_t *saved_info; /* previously used flash bank */ - flash_sect_t sector = saved_sector; - - if ((info != saved_info) || (sector >= info->sector_count)) - sector = 0; - - while ((info->start[sector] < addr) - && (sector < info->sector_count - 1)) - sector++; - while ((info->start[sector] > addr) && (sector > 0)) - /* - * also decrements the sector in case of an overshot - * in the first loop - */ - sector--; - - saved_sector = sector; - saved_info = info; - return sector; -} - -/*----------------------------------------------------------------------- - */ -static int flash_write_cfiword (flash_info_t * info, ulong dest, - cfiword_t cword) -{ - void *dstaddr = (void *)dest; - int flag; - flash_sect_t sect = 0; - char sect_found = 0; - - /* Check if Flash is (sufficiently) erased */ - switch (info->portwidth) { - case FLASH_CFI_8BIT: - flag = ((flash_read8(dstaddr) & cword.c) == cword.c); - break; - case FLASH_CFI_16BIT: - flag = ((flash_read16(dstaddr) & cword.w) == cword.w); - break; - case FLASH_CFI_32BIT: - flag = ((flash_read32(dstaddr) & cword.l) == cword.l); - break; - case FLASH_CFI_64BIT: - flag = ((flash_read64(dstaddr) & cword.ll) == cword.ll); - break; - default: - flag = 0; - break; - } - if (!flag) - return ERR_NOT_ERASED; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts (); - - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_EXTENDED: - case CFI_CMDSET_INTEL_STANDARD: - flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE); - break; - case CFI_CMDSET_AMD_EXTENDED: - case CFI_CMDSET_AMD_STANDARD: - sect = find_sector(info, dest); - flash_unlock_seq (info, sect); - flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_WRITE); - sect_found = 1; - break; -#ifdef CONFIG_FLASH_CFI_LEGACY - case CFI_CMDSET_AMD_LEGACY: - sect = find_sector(info, dest); - flash_unlock_seq (info, 0); - flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE); - sect_found = 1; - break; -#endif - } - - switch (info->portwidth) { - case FLASH_CFI_8BIT: - flash_write8(cword.c, dstaddr); - break; - case FLASH_CFI_16BIT: - flash_write16(cword.w, dstaddr); - break; - case FLASH_CFI_32BIT: - flash_write32(cword.l, dstaddr); - break; - case FLASH_CFI_64BIT: - flash_write64(cword.ll, dstaddr); - break; - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts (); - - if (!sect_found) - sect = find_sector (info, dest); - - if (use_flash_status_poll(info)) - return flash_status_poll(info, &cword, dstaddr, - info->write_tout, "write"); - else - return flash_full_status_check(info, sect, - info->write_tout, "write"); -} - -#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE - -static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp, - int len) -{ - flash_sect_t sector; - int cnt; - int retcode; - void *src = cp; - void *dst = (void *)dest; - void *dst2 = dst; - int flag = 1; - uint offset = 0; - unsigned int shift; - uchar write_cmd; - - switch (info->portwidth) { - case FLASH_CFI_8BIT: - shift = 0; - break; - case FLASH_CFI_16BIT: - shift = 1; - break; - case FLASH_CFI_32BIT: - shift = 2; - break; - case FLASH_CFI_64BIT: - shift = 3; - break; - default: - retcode = ERR_INVAL; - goto out_unmap; - } - - cnt = len >> shift; - - while ((cnt-- > 0) && (flag == 1)) { - switch (info->portwidth) { - case FLASH_CFI_8BIT: - flag = ((flash_read8(dst2) & flash_read8(src)) == - flash_read8(src)); - src += 1, dst2 += 1; - break; - case FLASH_CFI_16BIT: - flag = ((flash_read16(dst2) & flash_read16(src)) == - flash_read16(src)); - src += 2, dst2 += 2; - break; - case FLASH_CFI_32BIT: - flag = ((flash_read32(dst2) & flash_read32(src)) == - flash_read32(src)); - src += 4, dst2 += 4; - break; - case FLASH_CFI_64BIT: - flag = ((flash_read64(dst2) & flash_read64(src)) == - flash_read64(src)); - src += 8, dst2 += 8; - break; - } - } - if (!flag) { - retcode = ERR_NOT_ERASED; - goto out_unmap; - } - - src = cp; - sector = find_sector (info, dest); - - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_STANDARD: - case CFI_CMDSET_INTEL_EXTENDED: - write_cmd = (info->vendor == CFI_CMDSET_INTEL_PROG_REGIONS) ? - FLASH_CMD_WRITE_BUFFER_PROG : FLASH_CMD_WRITE_TO_BUFFER; - flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd (info, sector, 0, FLASH_CMD_READ_STATUS); - flash_write_cmd (info, sector, 0, write_cmd); - retcode = flash_status_check (info, sector, - info->buffer_write_tout, - "write to buffer"); - if (retcode == ERR_OK) { - /* reduce the number of loops by the width of - * the port */ - cnt = len >> shift; - flash_write_cmd (info, sector, 0, cnt - 1); - while (cnt-- > 0) { - switch (info->portwidth) { - case FLASH_CFI_8BIT: - flash_write8(flash_read8(src), dst); - src += 1, dst += 1; - break; - case FLASH_CFI_16BIT: - flash_write16(flash_read16(src), dst); - src += 2, dst += 2; - break; - case FLASH_CFI_32BIT: - flash_write32(flash_read32(src), dst); - src += 4, dst += 4; - break; - case FLASH_CFI_64BIT: - flash_write64(flash_read64(src), dst); - src += 8, dst += 8; - break; - default: - retcode = ERR_INVAL; - goto out_unmap; - } - } - flash_write_cmd (info, sector, 0, - FLASH_CMD_WRITE_BUFFER_CONFIRM); - retcode = flash_full_status_check ( - info, sector, info->buffer_write_tout, - "buffer write"); - } - - break; - - case CFI_CMDSET_AMD_STANDARD: - case CFI_CMDSET_AMD_EXTENDED: - flash_unlock_seq(info,0); - -#ifdef CONFIG_FLASH_SPANSION_S29WS_N - offset = ((unsigned long)dst - info->start[sector]) >> shift; -#endif - flash_write_cmd(info, sector, offset, AMD_CMD_WRITE_TO_BUFFER); - cnt = len >> shift; - flash_write_cmd(info, sector, offset, cnt - 1); - - switch (info->portwidth) { - case FLASH_CFI_8BIT: - while (cnt-- > 0) { - flash_write8(flash_read8(src), dst); - src += 1, dst += 1; - } - break; - case FLASH_CFI_16BIT: - while (cnt-- > 0) { - flash_write16(flash_read16(src), dst); - src += 2, dst += 2; - } - break; - case FLASH_CFI_32BIT: - while (cnt-- > 0) { - flash_write32(flash_read32(src), dst); - src += 4, dst += 4; - } - break; - case FLASH_CFI_64BIT: - while (cnt-- > 0) { - flash_write64(flash_read64(src), dst); - src += 8, dst += 8; - } - break; - default: - retcode = ERR_INVAL; - goto out_unmap; - } - - flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM); - if (use_flash_status_poll(info)) - retcode = flash_status_poll(info, src - (1 << shift), - dst - (1 << shift), - info->buffer_write_tout, - "buffer write"); - else - retcode = flash_full_status_check(info, sector, - info->buffer_write_tout, - "buffer write"); - break; - - default: - debug ("Unknown Command Set\n"); - retcode = ERR_INVAL; - break; - } - -out_unmap: - return retcode; -} -#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */ - - -/*----------------------------------------------------------------------- - */ -int flash_erase (flash_info_t * info, int s_first, int s_last) -{ - int rcode = 0; - int prot; - flash_sect_t sect; - int st; - - if (info->flash_id != FLASH_MAN_CFI) { - puts ("Can't erase unknown flash type - aborted\n"); - return 1; - } - if ((s_first < 0) || (s_first > s_last)) { - puts ("- no sectors to erase\n"); - return 1; - } - - prot = 0; - for (sect = s_first; sect <= s_last; ++sect) { - if (info->protect[sect]) { - prot++; - } - } - if (prot) { - printf ("- Warning: %d protected sectors will not be erased!\n", - prot); - } else if (flash_verbose) { - putc ('\n'); - } - - - for (sect = s_first; sect <= s_last; sect++) { - if (ctrlc()) { - printf("\n"); - return 1; - } - - if (info->protect[sect] == 0) { /* not protected */ -#ifdef CONFIG_SYS_FLASH_CHECK_BLANK_BEFORE_ERASE - int k; - int size; - int erased; - u32 *flash; - - /* - * Check if whole sector is erased - */ - size = flash_sector_size(info, sect); - erased = 1; - flash = (u32 *)info->start[sect]; - /* divide by 4 for longword access */ - size = size >> 2; - for (k = 0; k < size; k++) { - if (flash_read32(flash++) != 0xffffffff) { - erased = 0; - break; - } - } - if (erased) { - if (flash_verbose) - putc(','); - continue; - } -#endif - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_STANDARD: - case CFI_CMDSET_INTEL_EXTENDED: - flash_write_cmd (info, sect, 0, - FLASH_CMD_CLEAR_STATUS); - flash_write_cmd (info, sect, 0, - FLASH_CMD_BLOCK_ERASE); - flash_write_cmd (info, sect, 0, - FLASH_CMD_ERASE_CONFIRM); - break; - case CFI_CMDSET_AMD_STANDARD: - case CFI_CMDSET_AMD_EXTENDED: - flash_unlock_seq (info, sect); - flash_write_cmd (info, sect, - info->addr_unlock1, - AMD_CMD_ERASE_START); - flash_unlock_seq (info, sect); - flash_write_cmd (info, sect, 0, - info->cmd_erase_sector); - break; -#ifdef CONFIG_FLASH_CFI_LEGACY - case CFI_CMDSET_AMD_LEGACY: - flash_unlock_seq (info, 0); - flash_write_cmd (info, 0, info->addr_unlock1, - AMD_CMD_ERASE_START); - flash_unlock_seq (info, 0); - flash_write_cmd (info, sect, 0, - AMD_CMD_ERASE_SECTOR); - break; -#endif - default: - debug ("Unkown flash vendor %d\n", - info->vendor); - break; - } - - if (use_flash_status_poll(info)) { - cfiword_t cword; - void *dest; - cword.ll = 0xffffffffffffffffULL; - dest = flash_map(info, sect, 0); - st = flash_status_poll(info, &cword, dest, - info->erase_blk_tout, "erase"); - flash_unmap(info, sect, 0, dest); - } else - st = flash_full_status_check(info, sect, - info->erase_blk_tout, - "erase"); - if (st) - rcode = 1; - else if (flash_verbose) - putc ('.'); - } - } - - if (flash_verbose) - puts (" done\n"); - - return rcode; -} - -#ifdef CONFIG_SYS_FLASH_EMPTY_INFO -static int sector_erased(flash_info_t *info, int i) -{ - int k; - int size; - u32 *flash; - - /* - * Check if whole sector is erased - */ - size = flash_sector_size(info, i); - flash = (u32 *)info->start[i]; - /* divide by 4 for longword access */ - size = size >> 2; - - for (k = 0; k < size; k++) { - if (flash_read32(flash++) != 0xffffffff) - return 0; /* not erased */ - } - - return 1; /* erased */ -} -#endif /* CONFIG_SYS_FLASH_EMPTY_INFO */ - -void flash_print_info (flash_info_t * info) -{ - int i; - - if (info->flash_id != FLASH_MAN_CFI) { - puts ("missing or unknown FLASH type\n"); - return; - } - - printf ("%s flash (%d x %d)", - info->name, - (info->portwidth << 3), (info->chipwidth << 3)); - if (info->size < 1024*1024) - printf (" Size: %ld kB in %d Sectors\n", - info->size >> 10, info->sector_count); - else - printf (" Size: %ld MB in %d Sectors\n", - info->size >> 20, info->sector_count); - printf (" "); - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - printf ("Intel Prog Regions"); - break; - case CFI_CMDSET_INTEL_STANDARD: - printf ("Intel Standard"); - break; - case CFI_CMDSET_INTEL_EXTENDED: - printf ("Intel Extended"); - break; - case CFI_CMDSET_AMD_STANDARD: - printf ("AMD Standard"); - break; - case CFI_CMDSET_AMD_EXTENDED: - printf ("AMD Extended"); - break; -#ifdef CONFIG_FLASH_CFI_LEGACY - case CFI_CMDSET_AMD_LEGACY: - printf ("AMD Legacy"); - break; -#endif - default: - printf ("Unknown (%d)", info->vendor); - break; - } - printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x", - info->manufacturer_id); - printf (info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X", - info->device_id); - if ((info->device_id & 0xff) == 0x7E) { - printf(info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X", - info->device_id2); - } - if ((info->vendor == CFI_CMDSET_AMD_STANDARD) && (info->legacy_unlock)) - printf("\n Advanced Sector Protection (PPB) enabled"); - printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n", - info->erase_blk_tout, - info->write_tout); - if (info->buffer_size > 1) { - printf (" Buffer write timeout: %ld ms, " - "buffer size: %d bytes\n", - info->buffer_write_tout, - info->buffer_size); - } - - puts ("\n Sector Start Addresses:"); - for (i = 0; i < info->sector_count; ++i) { - if (ctrlc()) - break; - if ((i % 5) == 0) - putc('\n'); -#ifdef CONFIG_SYS_FLASH_EMPTY_INFO - /* print empty and read-only info */ - printf (" %08lX %c %s ", - info->start[i], - sector_erased(info, i) ? 'E' : ' ', - info->protect[i] ? "RO" : " "); -#else /* ! CONFIG_SYS_FLASH_EMPTY_INFO */ - printf (" %08lX %s ", - info->start[i], - info->protect[i] ? "RO" : " "); -#endif - } - putc ('\n'); - return; -} - -/*----------------------------------------------------------------------- - * This is used in a few places in write_buf() to show programming - * progress. Making it a function is nasty because it needs to do side - * effect updates to digit and dots. Repeated code is nasty too, so - * we define it once here. - */ -#ifdef CONFIG_FLASH_SHOW_PROGRESS -#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) \ - if (flash_verbose) { \ - dots -= dots_sub; \ - if ((scale > 0) && (dots <= 0)) { \ - if ((digit % 5) == 0) \ - printf ("%d", digit / 5); \ - else \ - putc ('.'); \ - digit--; \ - dots += scale; \ - } \ - } -#else -#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) -#endif - -/*----------------------------------------------------------------------- - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) -{ - ulong wp; - uchar *p; - int aln; - cfiword_t cword; - int i, rc; -#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE - int buffered_size; -#endif -#ifdef CONFIG_FLASH_SHOW_PROGRESS - int digit = CONFIG_FLASH_SHOW_PROGRESS; - int scale = 0; - int dots = 0; - - /* - * Suppress if there are fewer than CONFIG_FLASH_SHOW_PROGRESS writes. - */ - if (cnt >= CONFIG_FLASH_SHOW_PROGRESS) { - scale = (int)((cnt + CONFIG_FLASH_SHOW_PROGRESS - 1) / - CONFIG_FLASH_SHOW_PROGRESS); - } -#endif - - /* get lower aligned address */ - wp = (addr & ~(info->portwidth - 1)); - - /* handle unaligned start */ - if ((aln = addr - wp) != 0) { - cword.l = 0; - p = (uchar *)wp; - for (i = 0; i < aln; ++i) - flash_add_byte (info, &cword, flash_read8(p + i)); - - for (; (i < info->portwidth) && (cnt > 0); i++) { - flash_add_byte (info, &cword, *src++); - cnt--; - } - for (; (cnt == 0) && (i < info->portwidth); ++i) - flash_add_byte (info, &cword, flash_read8(p + i)); - - rc = flash_write_cfiword (info, wp, cword); - if (rc != 0) - return rc; - - wp += i; - FLASH_SHOW_PROGRESS(scale, dots, digit, i); - } - - /* handle the aligned part */ -#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE - buffered_size = (info->portwidth / info->chipwidth); - buffered_size *= info->buffer_size; - while (cnt >= info->portwidth) { - /* prohibit buffer write when buffer_size is 1 */ - if (info->buffer_size == 1) { - cword.l = 0; - for (i = 0; i < info->portwidth; i++) - flash_add_byte (info, &cword, *src++); - if ((rc = flash_write_cfiword (info, wp, cword)) != 0) - return rc; - wp += info->portwidth; - cnt -= info->portwidth; - continue; - } - - /* write buffer until next buffered_size aligned boundary */ - i = buffered_size - (wp % buffered_size); - if (i > cnt) - i = cnt; - if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK) - return rc; - i -= i & (info->portwidth - 1); - wp += i; - src += i; - cnt -= i; - FLASH_SHOW_PROGRESS(scale, dots, digit, i); - /* Only check every once in a while */ - if ((cnt & 0xFFFF) < buffered_size && ctrlc()) - return ERR_ABORTED; - } -#else - while (cnt >= info->portwidth) { - cword.l = 0; - for (i = 0; i < info->portwidth; i++) { - flash_add_byte (info, &cword, *src++); - } - if ((rc = flash_write_cfiword (info, wp, cword)) != 0) - return rc; - wp += info->portwidth; - cnt -= info->portwidth; - FLASH_SHOW_PROGRESS(scale, dots, digit, info->portwidth); - /* Only check every once in a while */ - if ((cnt & 0xFFFF) < info->portwidth && ctrlc()) - return ERR_ABORTED; - } -#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */ - - if (cnt == 0) { - return (0); - } - - /* - * handle unaligned tail bytes - */ - cword.l = 0; - p = (uchar *)wp; - for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) { - flash_add_byte (info, &cword, *src++); - --cnt; - } - for (; i < info->portwidth; ++i) - flash_add_byte (info, &cword, flash_read8(p + i)); - - return flash_write_cfiword (info, wp, cword); -} - -static inline int manufact_match(flash_info_t *info, u32 manu) -{ - return info->manufacturer_id == ((manu & FLASH_VENDMASK) >> 16); -} - -/*----------------------------------------------------------------------- - */ -#ifdef CONFIG_SYS_FLASH_PROTECTION - -static int cfi_protect_bugfix(flash_info_t *info, long sector, int prot) -{ - if (manufact_match(info, INTEL_MANUFACT) - && info->device_id == NUMONYX_256MBIT) { - /* - * see errata called - * "Numonyx Axcell P33/P30 Specification Update" :) - */ - flash_write_cmd(info, sector, 0, FLASH_CMD_READ_ID); - if (!flash_isequal(info, sector, FLASH_OFFSET_PROTECT, - prot)) { - /* - * cmd must come before FLASH_CMD_PROTECT + 20us - * Disable interrupts which might cause a timeout here. - */ - int flag = disable_interrupts(); - unsigned short cmd; - - if (prot) - cmd = FLASH_CMD_PROTECT_SET; - else - cmd = FLASH_CMD_PROTECT_CLEAR; - flash_write_cmd(info, sector, 0, - FLASH_CMD_PROTECT); - flash_write_cmd(info, sector, 0, cmd); - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - } - return 1; - } - return 0; -} - -int flash_real_protect (flash_info_t * info, long sector, int prot) -{ - int retcode = 0; - - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_STANDARD: - case CFI_CMDSET_INTEL_EXTENDED: - if (!cfi_protect_bugfix(info, sector, prot)) { - flash_write_cmd(info, sector, 0, - FLASH_CMD_CLEAR_STATUS); - flash_write_cmd(info, sector, 0, - FLASH_CMD_PROTECT); - if (prot) - flash_write_cmd(info, sector, 0, - FLASH_CMD_PROTECT_SET); - else - flash_write_cmd(info, sector, 0, - FLASH_CMD_PROTECT_CLEAR); - - } - break; - case CFI_CMDSET_AMD_EXTENDED: - case CFI_CMDSET_AMD_STANDARD: - /* U-Boot only checks the first byte */ - if (manufact_match(info, ATM_MANUFACT)) { - if (prot) { - flash_unlock_seq (info, 0); - flash_write_cmd (info, 0, - info->addr_unlock1, - ATM_CMD_SOFTLOCK_START); - flash_unlock_seq (info, 0); - flash_write_cmd (info, sector, 0, - ATM_CMD_LOCK_SECT); - } else { - flash_write_cmd (info, 0, - info->addr_unlock1, - AMD_CMD_UNLOCK_START); - if (info->device_id == ATM_ID_BV6416) - flash_write_cmd (info, sector, - 0, ATM_CMD_UNLOCK_SECT); - } - } - if (info->legacy_unlock) { - int flag = disable_interrupts(); - int lock_flag; - - flash_unlock_seq(info, 0); - flash_write_cmd(info, 0, info->addr_unlock1, - AMD_CMD_SET_PPB_ENTRY); - lock_flag = flash_isset(info, sector, 0, 0x01); - if (prot) { - if (lock_flag) { - flash_write_cmd(info, sector, 0, - AMD_CMD_PPB_LOCK_BC1); - flash_write_cmd(info, sector, 0, - AMD_CMD_PPB_LOCK_BC2); - } - debug("sector %ld %slocked\n", sector, - lock_flag ? "" : "already "); - } else { - if (!lock_flag) { - debug("unlock %ld\n", sector); - flash_write_cmd(info, 0, 0, - AMD_CMD_PPB_UNLOCK_BC1); - flash_write_cmd(info, 0, 0, - AMD_CMD_PPB_UNLOCK_BC2); - } - debug("sector %ld %sunlocked\n", sector, - !lock_flag ? "" : "already "); - } - if (flag) - enable_interrupts(); - - if (flash_status_check(info, sector, - info->erase_blk_tout, - prot ? "protect" : "unprotect")) - printf("status check error\n"); - - flash_write_cmd(info, 0, 0, - AMD_CMD_SET_PPB_EXIT_BC1); - flash_write_cmd(info, 0, 0, - AMD_CMD_SET_PPB_EXIT_BC2); - } - break; -#ifdef CONFIG_FLASH_CFI_LEGACY - case CFI_CMDSET_AMD_LEGACY: - flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT); - if (prot) - flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET); - else - flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR); -#endif - }; - - /* - * Flash needs to be in status register read mode for - * flash_full_status_check() to work correctly - */ - flash_write_cmd(info, sector, 0, FLASH_CMD_READ_STATUS); - if ((retcode = - flash_full_status_check (info, sector, info->erase_blk_tout, - prot ? "protect" : "unprotect")) == 0) { - - info->protect[sector] = prot; - - /* - * On some of Intel's flash chips (marked via legacy_unlock) - * unprotect unprotects all locking. - */ - if ((prot == 0) && (info->legacy_unlock)) { - flash_sect_t i; - - for (i = 0; i < info->sector_count; i++) { - if (info->protect[i]) - flash_real_protect (info, i, 1); - } - } - } - return retcode; -} - -/*----------------------------------------------------------------------- - * flash_read_user_serial - read the OneTimeProgramming cells - */ -void flash_read_user_serial (flash_info_t * info, void *buffer, int offset, - int len) -{ - uchar *src; - uchar *dst; - - dst = buffer; - src = flash_map (info, 0, FLASH_OFFSET_USER_PROTECTION); - flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID); - memcpy (dst, src + offset, len); - flash_write_cmd (info, 0, 0, info->cmd_reset); - udelay(1); - flash_unmap(info, 0, FLASH_OFFSET_USER_PROTECTION, src); -} - -/* - * flash_read_factory_serial - read the device Id from the protection area - */ -void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset, - int len) -{ - uchar *src; - - src = flash_map (info, 0, FLASH_OFFSET_INTEL_PROTECTION); - flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID); - memcpy (buffer, src + offset, len); - flash_write_cmd (info, 0, 0, info->cmd_reset); - udelay(1); - flash_unmap(info, 0, FLASH_OFFSET_INTEL_PROTECTION, src); -} - -#endif /* CONFIG_SYS_FLASH_PROTECTION */ - -/*----------------------------------------------------------------------- - * Reverse the order of the erase regions in the CFI QRY structure. - * This is needed for chips that are either a) correctly detected as - * top-boot, or b) buggy. - */ -static void cfi_reverse_geometry(struct cfi_qry *qry) -{ - unsigned int i, j; - u32 tmp; - - for (i = 0, j = qry->num_erase_regions - 1; i < j; i++, j--) { - tmp = get_unaligned(&(qry->erase_region_info[i])); - put_unaligned(get_unaligned(&(qry->erase_region_info[j])), - &(qry->erase_region_info[i])); - put_unaligned(tmp, &(qry->erase_region_info[j])); - } -} - -/*----------------------------------------------------------------------- - * read jedec ids from device and set corresponding fields in info struct - * - * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct - * - */ -static void cmdset_intel_read_jedec_ids(flash_info_t *info) -{ - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); - udelay(1); - flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID); - udelay(1000); /* some flash are slow to respond */ - info->manufacturer_id = flash_read_uchar (info, - FLASH_OFFSET_MANUFACTURER_ID); - info->device_id = (info->chipwidth == FLASH_CFI_16BIT) ? - flash_read_word (info, FLASH_OFFSET_DEVICE_ID) : - flash_read_uchar (info, FLASH_OFFSET_DEVICE_ID); - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); -} - -static int cmdset_intel_init(flash_info_t *info, struct cfi_qry *qry) -{ - info->cmd_reset = FLASH_CMD_RESET; - - cmdset_intel_read_jedec_ids(info); - flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI); - -#ifdef CONFIG_SYS_FLASH_PROTECTION - /* read legacy lock/unlock bit from intel flash */ - if (info->ext_addr) { - info->legacy_unlock = flash_read_uchar (info, - info->ext_addr + 5) & 0x08; - } -#endif - - return 0; -} - -static void cmdset_amd_read_jedec_ids(flash_info_t *info) -{ - ushort bankId = 0; - uchar manuId; - - flash_write_cmd(info, 0, 0, AMD_CMD_RESET); - flash_unlock_seq(info, 0); - flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID); - udelay(1000); /* some flash are slow to respond */ - - manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID); - /* JEDEC JEP106Z specifies ID codes up to bank 7 */ - while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) { - bankId += 0x100; - manuId = flash_read_uchar (info, - bankId | FLASH_OFFSET_MANUFACTURER_ID); - } - info->manufacturer_id = manuId; - - switch (info->chipwidth){ - case FLASH_CFI_8BIT: - info->device_id = flash_read_uchar (info, - FLASH_OFFSET_DEVICE_ID); - if (info->device_id == 0x7E) { - /* AMD 3-byte (expanded) device ids */ - info->device_id2 = flash_read_uchar (info, - FLASH_OFFSET_DEVICE_ID2); - info->device_id2 <<= 8; - info->device_id2 |= flash_read_uchar (info, - FLASH_OFFSET_DEVICE_ID3); - } - break; - case FLASH_CFI_16BIT: - info->device_id = flash_read_word (info, - FLASH_OFFSET_DEVICE_ID); - if ((info->device_id & 0xff) == 0x7E) { - /* AMD 3-byte (expanded) device ids */ - info->device_id2 = flash_read_uchar (info, - FLASH_OFFSET_DEVICE_ID2); - info->device_id2 <<= 8; - info->device_id2 |= flash_read_uchar (info, - FLASH_OFFSET_DEVICE_ID3); - } - break; - default: - break; - } - flash_write_cmd(info, 0, 0, AMD_CMD_RESET); - udelay(1); -} - -static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry) -{ - info->cmd_reset = AMD_CMD_RESET; - info->cmd_erase_sector = AMD_CMD_ERASE_SECTOR; - - cmdset_amd_read_jedec_ids(info); - flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI); - -#ifdef CONFIG_SYS_FLASH_PROTECTION - if (info->ext_addr) { - /* read sector protect/unprotect scheme (at 0x49) */ - if (flash_read_uchar(info, info->ext_addr + 9) == 0x8) - info->legacy_unlock = 1; - } -#endif - - return 0; -} - -#ifdef CONFIG_FLASH_CFI_LEGACY -static void flash_read_jedec_ids (flash_info_t * info) -{ - info->manufacturer_id = 0; - info->device_id = 0; - info->device_id2 = 0; - - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_STANDARD: - case CFI_CMDSET_INTEL_EXTENDED: - cmdset_intel_read_jedec_ids(info); - break; - case CFI_CMDSET_AMD_STANDARD: - case CFI_CMDSET_AMD_EXTENDED: - cmdset_amd_read_jedec_ids(info); - break; - default: - break; - } -} - -/*----------------------------------------------------------------------- - * Call board code to request info about non-CFI flash. - * board_flash_get_legacy needs to fill in at least: - * info->portwidth, info->chipwidth and info->interface for Jedec probing. - */ -static int flash_detect_legacy(phys_addr_t base, int banknum) -{ - flash_info_t *info = &flash_info[banknum]; - - if (board_flash_get_legacy(base, banknum, info)) { - /* board code may have filled info completely. If not, we - use JEDEC ID probing. */ - if (!info->vendor) { - int modes[] = { - CFI_CMDSET_AMD_STANDARD, - CFI_CMDSET_INTEL_STANDARD - }; - int i; - - for (i = 0; i < ARRAY_SIZE(modes); i++) { - info->vendor = modes[i]; - info->start[0] = - (ulong)map_physmem(base, - info->portwidth, - MAP_NOCACHE); - if (info->portwidth == FLASH_CFI_8BIT - && info->interface == FLASH_CFI_X8X16) { - info->addr_unlock1 = 0x2AAA; - info->addr_unlock2 = 0x5555; - } else { - info->addr_unlock1 = 0x5555; - info->addr_unlock2 = 0x2AAA; - } - flash_read_jedec_ids(info); - debug("JEDEC PROBE: ID %x %x %x\n", - info->manufacturer_id, - info->device_id, - info->device_id2); - if (jedec_flash_match(info, info->start[0])) - break; - else - unmap_physmem((void *)info->start[0], - info->portwidth); - } - } - - switch(info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_STANDARD: - case CFI_CMDSET_INTEL_EXTENDED: - info->cmd_reset = FLASH_CMD_RESET; - break; - case CFI_CMDSET_AMD_STANDARD: - case CFI_CMDSET_AMD_EXTENDED: - case CFI_CMDSET_AMD_LEGACY: - info->cmd_reset = AMD_CMD_RESET; - break; - } - info->flash_id = FLASH_MAN_CFI; - return 1; - } - return 0; /* use CFI */ -} -#else -static inline int flash_detect_legacy(phys_addr_t base, int banknum) -{ - return 0; /* use CFI */ -} -#endif - -/*----------------------------------------------------------------------- - * detect if flash is compatible with the Common Flash Interface (CFI) - * http://www.jedec.org/download/search/jesd68.pdf - */ -static void flash_read_cfi (flash_info_t *info, void *buf, - unsigned int start, size_t len) -{ - u8 *p = buf; - unsigned int i; - - for (i = 0; i < len; i++) - p[i] = flash_read_uchar(info, start + i); -} - -static void __flash_cmd_reset(flash_info_t *info) -{ - /* - * We do not yet know what kind of commandset to use, so we issue - * the reset command in both Intel and AMD variants, in the hope - * that AMD flash roms ignore the Intel command. - */ - flash_write_cmd(info, 0, 0, AMD_CMD_RESET); - udelay(1); - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); -} -void flash_cmd_reset(flash_info_t *info) - __attribute__((weak,alias("__flash_cmd_reset"))); - -static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) -{ - int cfi_offset; - - /* Issue FLASH reset command */ - flash_cmd_reset(info); - - for (cfi_offset = 0; cfi_offset < ARRAY_SIZE(flash_offset_cfi); - cfi_offset++) { - flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset], - FLASH_CMD_CFI); - if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q') - && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') - && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) { - flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP, - sizeof(struct cfi_qry)); - info->interface = le16_to_cpu(qry->interface_desc); - - info->cfi_offset = flash_offset_cfi[cfi_offset]; - debug ("device interface is %d\n", - info->interface); - debug ("found port %d chip %d ", - info->portwidth, info->chipwidth); - debug ("port %d bits chip %d bits\n", - info->portwidth << CFI_FLASH_SHIFT_WIDTH, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - - /* calculate command offsets as in the Linux driver */ - info->addr_unlock1 = 0x555; - info->addr_unlock2 = 0x2aa; - - /* - * modify the unlock address if we are - * in compatibility mode - */ - if ( /* x8/x16 in x8 mode */ - ((info->chipwidth == FLASH_CFI_BY8) && - (info->interface == FLASH_CFI_X8X16)) || - /* x16/x32 in x16 mode */ - ((info->chipwidth == FLASH_CFI_BY16) && - (info->interface == FLASH_CFI_X16X32))) - { - info->addr_unlock1 = 0xaaa; - info->addr_unlock2 = 0x555; - } - - info->name = "CFI conformant"; - return 1; - } - } - - return 0; -} - -static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) -{ - debug ("flash detect cfi\n"); - - for (info->portwidth = CONFIG_SYS_FLASH_CFI_WIDTH; - info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) { - for (info->chipwidth = FLASH_CFI_BY8; - info->chipwidth <= info->portwidth; - info->chipwidth <<= 1) - if (__flash_detect_cfi(info, qry)) - return 1; - } - debug ("not found\n"); - return 0; -} - -/* - * Manufacturer-specific quirks. Add workarounds for geometry - * reversal, etc. here. - */ -static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry) -{ - /* check if flash geometry needs reversal */ - if (qry->num_erase_regions > 1) { - /* reverse geometry if top boot part */ - if (info->cfi_version < 0x3131) { - /* CFI < 1.1, try to guess from device id */ - if ((info->device_id & 0x80) != 0) - cfi_reverse_geometry(qry); - } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) { - /* CFI >= 1.1, deduct from top/bottom flag */ - /* note: ext_addr is valid since cfi_version > 0 */ - cfi_reverse_geometry(qry); - } - } -} - -static void flash_fixup_atmel(flash_info_t *info, struct cfi_qry *qry) -{ - int reverse_geometry = 0; - - /* Check the "top boot" bit in the PRI */ - if (info->ext_addr && !(flash_read_uchar(info, info->ext_addr + 6) & 1)) - reverse_geometry = 1; - - /* AT49BV6416(T) list the erase regions in the wrong order. - * However, the device ID is identical with the non-broken - * AT49BV642D they differ in the high byte. - */ - if (info->device_id == 0xd6 || info->device_id == 0xd2) - reverse_geometry = !reverse_geometry; - - if (reverse_geometry) - cfi_reverse_geometry(qry); -} - -static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry) -{ - /* check if flash geometry needs reversal */ - if (qry->num_erase_regions > 1) { - /* reverse geometry if top boot part */ - if (info->cfi_version < 0x3131) { - /* CFI < 1.1, guess by device id */ - if (info->device_id == 0x22CA || /* M29W320DT */ - info->device_id == 0x2256 || /* M29W320ET */ - info->device_id == 0x22D7) { /* M29W800DT */ - cfi_reverse_geometry(qry); - } - } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) { - /* CFI >= 1.1, deduct from top/bottom flag */ - /* note: ext_addr is valid since cfi_version > 0 */ - cfi_reverse_geometry(qry); - } - } -} - -static void flash_fixup_sst(flash_info_t *info, struct cfi_qry *qry) -{ - /* - * SST, for many recent nor parallel flashes, says they are - * CFI-conformant. This is not true, since qry struct. - * reports a std. AMD command set (0x0002), while SST allows to - * erase two different sector sizes for the same memory. - * 64KB sector (SST call it block) needs 0x30 to be erased. - * 4KB sector (SST call it sector) needs 0x50 to be erased. - * Since CFI query detect the 4KB number of sectors, users expects - * a sector granularity of 4KB, and it is here set. - */ - if (info->device_id == 0x5D23 || /* SST39VF3201B */ - info->device_id == 0x5C23) { /* SST39VF3202B */ - /* set sector granularity to 4KB */ - info->cmd_erase_sector=0x50; - } -} - -static void flash_fixup_num(flash_info_t *info, struct cfi_qry *qry) -{ - /* - * The M29EW devices seem to report the CFI information wrong - * when it's in 8 bit mode. - * There's an app note from Numonyx on this issue. - * So adjust the buffer size for M29EW while operating in 8-bit mode - */ - if (((qry->max_buf_write_size) > 0x8) && - (info->device_id == 0x7E) && - (info->device_id2 == 0x2201 || - info->device_id2 == 0x2301 || - info->device_id2 == 0x2801 || - info->device_id2 == 0x4801)) { - debug("Adjusted buffer size on Numonyx flash" - " M29EW family in 8 bit mode\n"); - qry->max_buf_write_size = 0x8; - } -} - -/* - * The following code cannot be run from FLASH! - * - */ -ulong flash_get_size (phys_addr_t base, int banknum) -{ - flash_info_t *info = &flash_info[banknum]; - int i, j; - flash_sect_t sect_cnt; - phys_addr_t sector; - unsigned long tmp; - int size_ratio; - uchar num_erase_regions; - int erase_region_size; - int erase_region_count; - struct cfi_qry qry; - unsigned long max_size; - - memset(&qry, 0, sizeof(qry)); - - info->ext_addr = 0; - info->cfi_version = 0; -#ifdef CONFIG_SYS_FLASH_PROTECTION - info->legacy_unlock = 0; -#endif - - info->start[0] = (ulong)map_physmem(base, info->portwidth, MAP_NOCACHE); - - if (flash_detect_cfi (info, &qry)) { - info->vendor = le16_to_cpu(get_unaligned(&(qry.p_id))); - info->ext_addr = le16_to_cpu(get_unaligned(&(qry.p_adr))); - num_erase_regions = qry.num_erase_regions; - - if (info->ext_addr) { - info->cfi_version = (ushort) flash_read_uchar (info, - info->ext_addr + 3) << 8; - info->cfi_version |= (ushort) flash_read_uchar (info, - info->ext_addr + 4); - } - -#ifdef DEBUG - flash_printqry (&qry); -#endif - - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_STANDARD: - case CFI_CMDSET_INTEL_EXTENDED: - cmdset_intel_init(info, &qry); - break; - case CFI_CMDSET_AMD_STANDARD: - case CFI_CMDSET_AMD_EXTENDED: - cmdset_amd_init(info, &qry); - break; - default: - printf("CFI: Unknown command set 0x%x\n", - info->vendor); - /* - * Unfortunately, this means we don't know how - * to get the chip back to Read mode. Might - * as well try an Intel-style reset... - */ - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); - return 0; - } - - /* Do manufacturer-specific fixups */ - switch (info->manufacturer_id) { - case 0x0001: /* AMD */ - case 0x0037: /* AMIC */ - flash_fixup_amd(info, &qry); - break; - case 0x001f: - flash_fixup_atmel(info, &qry); - break; - case 0x0020: - flash_fixup_stm(info, &qry); - break; - case 0x00bf: /* SST */ - flash_fixup_sst(info, &qry); - break; - case 0x0089: /* Numonyx */ - flash_fixup_num(info, &qry); - break; - } - - debug ("manufacturer is %d\n", info->vendor); - debug ("manufacturer id is 0x%x\n", info->manufacturer_id); - debug ("device id is 0x%x\n", info->device_id); - debug ("device id2 is 0x%x\n", info->device_id2); - debug ("cfi version is 0x%04x\n", info->cfi_version); - - size_ratio = info->portwidth / info->chipwidth; - /* if the chip is x8/x16 reduce the ratio by half */ - if ((info->interface == FLASH_CFI_X8X16) - && (info->chipwidth == FLASH_CFI_BY8)) { - size_ratio >>= 1; - } - debug ("size_ratio %d port %d bits chip %d bits\n", - size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - info->size = 1 << qry.dev_size; - /* multiply the size by the number of chips */ - info->size *= size_ratio; - max_size = cfi_flash_bank_size(banknum); - if (max_size && (info->size > max_size)) { - debug("[truncated from %ldMiB]", info->size >> 20); - info->size = max_size; - } - debug ("found %d erase regions\n", num_erase_regions); - sect_cnt = 0; - sector = base; - for (i = 0; i < num_erase_regions; i++) { - if (i > NUM_ERASE_REGIONS) { - printf ("%d erase regions found, only %d used\n", - num_erase_regions, NUM_ERASE_REGIONS); - break; - } - - tmp = le32_to_cpu(get_unaligned( - &(qry.erase_region_info[i]))); - debug("erase region %u: 0x%08lx\n", i, tmp); - - erase_region_count = (tmp & 0xffff) + 1; - tmp >>= 16; - erase_region_size = - (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128; - debug ("erase_region_count = %d erase_region_size = %d\n", - erase_region_count, erase_region_size); - for (j = 0; j < erase_region_count; j++) { - if (sector - base >= info->size) - break; - if (sect_cnt >= CONFIG_SYS_MAX_FLASH_SECT) { - printf("ERROR: too many flash sectors\n"); - break; - } - info->start[sect_cnt] = - (ulong)map_physmem(sector, - info->portwidth, - MAP_NOCACHE); - sector += (erase_region_size * size_ratio); - - /* - * Only read protection status from - * supported devices (intel...) - */ - switch (info->vendor) { - case CFI_CMDSET_INTEL_PROG_REGIONS: - case CFI_CMDSET_INTEL_EXTENDED: - case CFI_CMDSET_INTEL_STANDARD: - /* - * Set flash to read-id mode. Otherwise - * reading protected status is not - * guaranteed. - */ - flash_write_cmd(info, sect_cnt, 0, - FLASH_CMD_READ_ID); - info->protect[sect_cnt] = - flash_isset (info, sect_cnt, - FLASH_OFFSET_PROTECT, - FLASH_STATUS_PROTECT); - break; - case CFI_CMDSET_AMD_EXTENDED: - case CFI_CMDSET_AMD_STANDARD: - if (!info->legacy_unlock) { - /* default: not protected */ - info->protect[sect_cnt] = 0; - break; - } - - /* Read protection (PPB) from sector */ - flash_write_cmd(info, 0, 0, - info->cmd_reset); - flash_unlock_seq(info, 0); - flash_write_cmd(info, 0, - info->addr_unlock1, - FLASH_CMD_READ_ID); - info->protect[sect_cnt] = - flash_isset( - info, sect_cnt, - FLASH_OFFSET_PROTECT, - FLASH_STATUS_PROTECT); - break; - default: - /* default: not protected */ - info->protect[sect_cnt] = 0; - } - - sect_cnt++; - } - } - - info->sector_count = sect_cnt; - info->buffer_size = 1 << le16_to_cpu(qry.max_buf_write_size); - tmp = 1 << qry.block_erase_timeout_typ; - info->erase_blk_tout = tmp * - (1 << qry.block_erase_timeout_max); - tmp = (1 << qry.buf_write_timeout_typ) * - (1 << qry.buf_write_timeout_max); - - /* round up when converting to ms */ - info->buffer_write_tout = (tmp + 999) / 1000; - tmp = (1 << qry.word_write_timeout_typ) * - (1 << qry.word_write_timeout_max); - /* round up when converting to ms */ - info->write_tout = (tmp + 999) / 1000; - info->flash_id = FLASH_MAN_CFI; - if ((info->interface == FLASH_CFI_X8X16) && - (info->chipwidth == FLASH_CFI_BY8)) { - /* XXX - Need to test on x8/x16 in parallel. */ - info->portwidth >>= 1; - } - - flash_write_cmd (info, 0, 0, info->cmd_reset); - } - - return (info->size); -} - -#ifdef CONFIG_FLASH_CFI_MTD -void flash_set_verbose(uint v) -{ - flash_verbose = v; -} -#endif - -static void cfi_flash_set_config_reg(u32 base, u16 val) -{ -#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS - /* - * Only set this config register if really defined - * to a valid value (0xffff is invalid) - */ - if (val == 0xffff) - return; - - /* - * Set configuration register. Data is "encrypted" in the 16 lower - * address bits. - */ - flash_write16(FLASH_CMD_SETUP, (void *)(base + (val << 1))); - flash_write16(FLASH_CMD_SET_CR_CONFIRM, (void *)(base + (val << 1))); - - /* - * Finally issue reset-command to bring device back to - * read-array mode - */ - flash_write16(FLASH_CMD_RESET, (void *)base); -#endif -} - -/*----------------------------------------------------------------------- - */ - -void flash_protect_default(void) -{ -#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST) - int i; - struct apl_s { - ulong start; - ulong size; - } apl[] = CONFIG_SYS_FLASH_AUTOPROTECT_LIST; -#endif - - /* Monitor protection ON by default */ -#if (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) && \ - (!defined(CONFIG_MONITOR_IS_IN_RAM)) - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_MONITOR_BASE, - CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, - flash_get_info(CONFIG_SYS_MONITOR_BASE)); -#endif - - /* Environment protection ON by default */ -#ifdef CONFIG_ENV_IS_IN_FLASH - flash_protect(FLAG_PROTECT_SET, - CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, - flash_get_info(CONFIG_ENV_ADDR)); -#endif - - /* Redundant environment protection ON by default */ -#ifdef CONFIG_ENV_ADDR_REDUND - flash_protect(FLAG_PROTECT_SET, - CONFIG_ENV_ADDR_REDUND, - CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1, - flash_get_info(CONFIG_ENV_ADDR_REDUND)); -#endif - -#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST) - for (i = 0; i < ARRAY_SIZE(apl); i++) { - debug("autoprotecting from %08lx to %08lx\n", - apl[i].start, apl[i].start + apl[i].size - 1); - flash_protect(FLAG_PROTECT_SET, - apl[i].start, - apl[i].start + apl[i].size - 1, - flash_get_info(apl[i].start)); - } -#endif -} - -unsigned long flash_init (void) -{ - unsigned long size = 0; - int i; - -#ifdef CONFIG_SYS_FLASH_PROTECTION - /* read environment from EEPROM */ - char s[64]; - getenv_f("unlock", s, sizeof(s)); -#endif - - /* Init: no FLASHes known */ - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { - flash_info[i].flash_id = FLASH_UNKNOWN; - - /* Optionally write flash configuration register */ - cfi_flash_set_config_reg(cfi_flash_bank_addr(i), - cfi_flash_config_reg(i)); - - if (!flash_detect_legacy(cfi_flash_bank_addr(i), i)) - flash_get_size(cfi_flash_bank_addr(i), i); - size += flash_info[i].size; - if (flash_info[i].flash_id == FLASH_UNKNOWN) { -#ifndef CONFIG_SYS_FLASH_QUIET_TEST - printf ("## Unknown flash on Bank %d " - "- Size = 0x%08lx = %ld MB\n", - i+1, flash_info[i].size, - flash_info[i].size >> 20); -#endif /* CONFIG_SYS_FLASH_QUIET_TEST */ - } -#ifdef CONFIG_SYS_FLASH_PROTECTION - else if ((s != NULL) && (strcmp(s, "yes") == 0)) { - /* - * Only the U-Boot image and it's environment - * is protected, all other sectors are - * unprotected (unlocked) if flash hardware - * protection is used (CONFIG_SYS_FLASH_PROTECTION) - * and the environment variable "unlock" is - * set to "yes". - */ - if (flash_info[i].legacy_unlock) { - int k; - - /* - * Disable legacy_unlock temporarily, - * since flash_real_protect would - * relock all other sectors again - * otherwise. - */ - flash_info[i].legacy_unlock = 0; - - /* - * Legacy unlocking (e.g. Intel J3) -> - * unlock only one sector. This will - * unlock all sectors. - */ - flash_real_protect (&flash_info[i], 0, 0); - - flash_info[i].legacy_unlock = 1; - - /* - * Manually mark other sectors as - * unlocked (unprotected) - */ - for (k = 1; k < flash_info[i].sector_count; k++) - flash_info[i].protect[k] = 0; - } else { - /* - * No legancy unlocking -> unlock all sectors - */ - flash_protect (FLAG_PROTECT_CLEAR, - flash_info[i].start[0], - flash_info[i].start[0] - + flash_info[i].size - 1, - &flash_info[i]); - } - } -#endif /* CONFIG_SYS_FLASH_PROTECTION */ - } - - flash_protect_default(); -#ifdef CONFIG_FLASH_CFI_MTD - cfi_mtd_init(); -#endif - - return (size); -} |