X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmtd%2Fcfi_flash.c;h=f3bb72788a9c34cac16cbf21393fe2870ddeeabe;hb=0cc8c3064d4be2f5492f04f9d1eda1ee256ac4e7;hp=25f875202c337deafbda8f30b530325f21c5d88c;hpb=24c185cf58a5bef1e0401a0f7e70526d6d9078c7;p=u-boot diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 25f875202c..f3bb72788a 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -11,30 +11,17 @@ * Copyright (C) 2006 * Tolunay Orkun * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * + * SPDX-License-Identifier: GPL-2.0+ */ /* The DEBUG define must be before common to enable debugging */ /* #define DEBUG */ #include +#include +#include +#include +#include #include #include #include @@ -64,6 +51,8 @@ * reading and writing ... (yes there is such a Hardware). */ +DECLARE_GLOBAL_DATA_PTR; + static uint flash_offset_cfi[2] = { FLASH_OFFSET_CFI, FLASH_OFFSET_CFI_ALT }; #ifdef CONFIG_FLASH_CFI_MTD static uint flash_verbose = 1; @@ -80,6 +69,12 @@ flash_info_t flash_info[CFI_MAX_FLASH_BANKS]; /* FLASH chips info */ #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_8BIT #endif +#ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS +#define __maybe_weak __weak +#else +#define __maybe_weak static +#endif + /* * 0xffff is an undefined value for the configuration register. When * this value is returned, the configuration register shall not be @@ -98,14 +93,38 @@ static u16 cfi_flash_config_reg(int i) int cfi_flash_num_flash_banks = CONFIG_SYS_MAX_FLASH_BANKS_DETECT; #endif -static phys_addr_t __cfi_flash_bank_addr(int i) +#ifdef CONFIG_CFI_FLASH /* for driver model */ +static void cfi_flash_init_dm(void) { - return ((phys_addr_t [])CONFIG_SYS_FLASH_BANKS_LIST)[i]; + struct udevice *dev; + + cfi_flash_num_flash_banks = 0; + /* + * The uclass_first_device() will probe the first device and + * uclass_next_device() will probe the rest if they exist. So + * that cfi_flash_probe() will get called assigning the base + * addresses that are available. + */ + for (uclass_first_device(UCLASS_MTD, &dev); + dev; + uclass_next_device(&dev)) { + } } + +static phys_addr_t cfi_flash_base[CFI_MAX_FLASH_BANKS]; + phys_addr_t cfi_flash_bank_addr(int i) - __attribute__((weak, alias("__cfi_flash_bank_addr"))); +{ + return cfi_flash_base[i]; +} +#else +__weak phys_addr_t cfi_flash_bank_addr(int i) +{ + return ((phys_addr_t [])CONFIG_SYS_FLASH_BANKS_LIST)[i]; +} +#endif -static unsigned long __cfi_flash_bank_size(int i) +__weak unsigned long cfi_flash_bank_size(int i) { #ifdef CONFIG_SYS_FLASH_BANKS_SIZES return ((unsigned long [])CONFIG_SYS_FLASH_BANKS_SIZES)[i]; @@ -113,75 +132,53 @@ static unsigned long __cfi_flash_bank_size(int i) 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) +__maybe_weak void flash_write8(u8 value, void *addr) { __raw_writeb(value, addr); } -static void __flash_write16(u16 value, void *addr) +__maybe_weak void flash_write16(u16 value, void *addr) { __raw_writew(value, addr); } -static void __flash_write32(u32 value, void *addr) +__maybe_weak void flash_write32(u32 value, void *addr) { __raw_writel(value, addr); } -static void __flash_write64(u64 value, void *addr) +__maybe_weak void flash_write64(u64 value, void *addr) { /* No architectures currently implement __raw_writeq() */ *(volatile u64 *)addr = value; } -static u8 __flash_read8(void *addr) +__maybe_weak u8 flash_read8(void *addr) { return __raw_readb(addr); } -static u16 __flash_read16(void *addr) +__maybe_weak u16 flash_read16(void *addr) { return __raw_readw(addr); } -static u32 __flash_read32(void *addr) +__maybe_weak u32 flash_read32(void *addr) { return __raw_readl(addr); } -static u64 __flash_read64(void *addr) +__maybe_weak 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) +static flash_info_t *flash_get_info(ulong base) { int i; flash_info_t *info; @@ -358,8 +355,8 @@ static ulong flash_read_long (flash_info_t * info, flash_sect_t sect, /* * 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) +static void flash_write_cmd(flash_info_t *info, flash_sect_t sect, + uint offset, u32 cmd) { void *addr; @@ -370,34 +367,34 @@ void flash_write_cmd (flash_info_t * info, flash_sect_t sect, 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); + cword.w8, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); + flash_write8(cword.w8, addr); break; case FLASH_CFI_16BIT: debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr, - cmd, cword.w, + cmd, cword.w16, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - flash_write16(cword.w, addr); + flash_write16(cword.w16, addr); break; case FLASH_CFI_32BIT: - debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr, - cmd, cword.l, + debug ("fwc addr %p cmd %x %8.8x 32bit x %d bit\n", addr, + cmd, cword.w32, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - flash_write32(cword.l, addr); + flash_write32(cword.w32, addr); break; case FLASH_CFI_64BIT: #ifdef DEBUG { char str[20]; - print_longlong (str, cword.ll); + print_longlong (str, cword.w64); 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); + flash_write64(cword.w64, addr); break; } @@ -428,16 +425,16 @@ static int flash_isequal (flash_info_t * info, flash_sect_t sect, 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); + debug ("is= %x %x\n", flash_read8(addr), cword.w8); + retval = (flash_read8(addr) == cword.w8); break; case FLASH_CFI_16BIT: - debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w); - retval = (flash_read16(addr) == cword.w); + debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w16); + retval = (flash_read16(addr) == cword.w16); break; case FLASH_CFI_32BIT: - debug ("is= %8.8x %8.8lx\n", flash_read32(addr), cword.l); - retval = (flash_read32(addr) == cword.l); + debug ("is= %8.8x %8.8x\n", flash_read32(addr), cword.w32); + retval = (flash_read32(addr) == cword.w32); break; case FLASH_CFI_64BIT: #ifdef DEBUG @@ -446,11 +443,11 @@ static int flash_isequal (flash_info_t * info, flash_sect_t sect, char str2[20]; print_longlong (str1, flash_read64(addr)); - print_longlong (str2, cword.ll); + print_longlong (str2, cword.w64); debug ("is= %s %s\n", str1, str2); } #endif - retval = (flash_read64(addr) == cword.ll); + retval = (flash_read64(addr) == cword.w64); break; default: retval = 0; @@ -474,16 +471,16 @@ static int flash_isset (flash_info_t * info, flash_sect_t sect, flash_make_cmd (info, cmd, &cword); switch (info->portwidth) { case FLASH_CFI_8BIT: - retval = ((flash_read8(addr) & cword.c) == cword.c); + retval = ((flash_read8(addr) & cword.w8) == cword.w8); break; case FLASH_CFI_16BIT: - retval = ((flash_read16(addr) & cword.w) == cword.w); + retval = ((flash_read16(addr) & cword.w16) == cword.w16); break; case FLASH_CFI_32BIT: - retval = ((flash_read32(addr) & cword.l) == cword.l); + retval = ((flash_read32(addr) & cword.w32) == cword.w32); break; case FLASH_CFI_64BIT: - retval = ((flash_read64(addr) & cword.ll) == cword.ll); + retval = ((flash_read64(addr) & cword.w64) == cword.w64); break; default: retval = 0; @@ -610,8 +607,8 @@ static int flash_full_status_check (flash_info_t * info, flash_sect_t sector, 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)) { + if ((retcode == ERR_OK) + && !flash_isset(info, sector, 0, FLASH_STATUS_DONE)) { retcode = ERR_INVAL; printf ("Flash %s error at address %lx\n", prompt, info->start[sector]); @@ -715,33 +712,33 @@ static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c) switch (info->portwidth) { case FLASH_CFI_8BIT: - cword->c = c; + cword->w8 = 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; + cword->w16 = (cword->w16 >> 8) | w; #else - cword->w = (cword->w << 8) | c; + cword->w16 = (cword->w16 << 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; + cword->w32 = (cword->w32 >> 8) | l; #else - cword->l = (cword->l << 8) | c; + cword->w32 = (cword->w32 << 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; + cword->w64 = (cword->w64 >> 8) | ll; #else - cword->ll = (cword->ll << 8) | c; + cword->w64 = (cword->w64 << 8) | c; #endif break; } @@ -788,16 +785,16 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest, /* Check if Flash is (sufficiently) erased */ switch (info->portwidth) { case FLASH_CFI_8BIT: - flag = ((flash_read8(dstaddr) & cword.c) == cword.c); + flag = ((flash_read8(dstaddr) & cword.w8) == cword.w8); break; case FLASH_CFI_16BIT: - flag = ((flash_read16(dstaddr) & cword.w) == cword.w); + flag = ((flash_read16(dstaddr) & cword.w16) == cword.w16); break; case FLASH_CFI_32BIT: - flag = ((flash_read32(dstaddr) & cword.l) == cword.l); + flag = ((flash_read32(dstaddr) & cword.w32) == cword.w32); break; case FLASH_CFI_64BIT: - flag = ((flash_read64(dstaddr) & cword.ll) == cword.ll); + flag = ((flash_read64(dstaddr) & cword.w64) == cword.w64); break; default: flag = 0; @@ -835,16 +832,16 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest, switch (info->portwidth) { case FLASH_CFI_8BIT: - flash_write8(cword.c, dstaddr); + flash_write8(cword.w8, dstaddr); break; case FLASH_CFI_16BIT: - flash_write16(cword.w, dstaddr); + flash_write16(cword.w16, dstaddr); break; case FLASH_CFI_32BIT: - flash_write32(cword.l, dstaddr); + flash_write32(cword.w32, dstaddr); break; case FLASH_CFI_64BIT: - flash_write64(cword.ll, dstaddr); + flash_write64(cword.w64, dstaddr); break; } @@ -982,7 +979,7 @@ static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp, case CFI_CMDSET_AMD_STANDARD: case CFI_CMDSET_AMD_EXTENDED: - flash_unlock_seq(info,0); + flash_unlock_seq(info, sector); #ifdef CONFIG_FLASH_SPANSION_S29WS_N offset = ((unsigned long)dst - info->start[sector]) >> shift; @@ -1150,7 +1147,7 @@ int flash_erase (flash_info_t * info, int s_first, int s_last) if (use_flash_status_poll(info)) { cfiword_t cword; void *dest; - cword.ll = 0xffffffffffffffffULL; + cword.w64 = 0xffffffffffffffffULL; dest = flash_map(info, sect, 0); st = flash_status_poll(info, &cword, dest, info->erase_blk_tout, "erase"); @@ -1340,7 +1337,7 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) /* handle unaligned start */ if ((aln = addr - wp) != 0) { - cword.l = 0; + cword.w32 = 0; p = (uchar *)wp; for (i = 0; i < aln; ++i) flash_add_byte (info, &cword, flash_read8(p + i)); @@ -1367,7 +1364,7 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) while (cnt >= info->portwidth) { /* prohibit buffer write when buffer_size is 1 */ if (info->buffer_size == 1) { - cword.l = 0; + cword.w32 = 0; for (i = 0; i < info->portwidth; i++) flash_add_byte (info, &cword, *src++); if ((rc = flash_write_cfiword (info, wp, cword)) != 0) @@ -1394,7 +1391,7 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) } #else while (cnt >= info->portwidth) { - cword.l = 0; + cword.w32 = 0; for (i = 0; i < info->portwidth; i++) { flash_add_byte (info, &cword, *src++); } @@ -1416,7 +1413,7 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) /* * handle unaligned tail bytes */ - cword.l = 0; + cword.w32 = 0; p = (uchar *)wp; for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) { flash_add_byte (info, &cword, *src++); @@ -1459,8 +1456,8 @@ static int cfi_protect_bugfix(flash_info_t *info, long sector, int 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, FLASH_CMD_PROTECT); flash_write_cmd(info, sector, 0, cmd); /* re-enable interrupts if necessary */ if (flag) @@ -1797,7 +1794,7 @@ static int flash_detect_legacy(phys_addr_t base, int banknum) }; int i; - for (i = 0; i < sizeof(modes) / sizeof(modes[0]); i++) { + for (i = 0; i < ARRAY_SIZE(modes); i++) { info->vendor = modes[i]; info->start[0] = (ulong)map_physmem(base, @@ -1820,7 +1817,7 @@ static int flash_detect_legacy(phys_addr_t base, int banknum) break; else unmap_physmem((void *)info->start[0], - MAP_NOCACHE); + info->portwidth); } } @@ -1883,8 +1880,7 @@ static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) /* Issue FLASH reset command */ flash_cmd_reset(info); - for (cfi_offset=0; - cfi_offset < sizeof(flash_offset_cfi) / sizeof(uint); + 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); @@ -2207,6 +2203,8 @@ ulong flash_get_size (phys_addr_t base, int banknum) flash_isset (info, sect_cnt, FLASH_OFFSET_PROTECT, FLASH_STATUS_PROTECT); + flash_write_cmd(info, sect_cnt, 0, + FLASH_CMD_RESET); break; case CFI_CMDSET_AMD_EXTENDED: case CFI_CMDSET_AMD_STANDARD: @@ -2300,7 +2298,7 @@ static void cfi_flash_set_config_reg(u32 base, u16 val) /*----------------------------------------------------------------------- */ -void flash_protect_default(void) +static void flash_protect_default(void) { #if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST) int i; @@ -2336,7 +2334,7 @@ void flash_protect_default(void) #endif #if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST) - for (i = 0; i < (sizeof(apl) / sizeof(struct apl_s)); i++) { + 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, @@ -2355,7 +2353,11 @@ unsigned long flash_init (void) #ifdef CONFIG_SYS_FLASH_PROTECTION /* read environment from EEPROM */ char s[64]; - getenv_f("unlock", s, sizeof(s)); + env_get_f("unlock", s, sizeof(s)); +#endif + +#ifdef CONFIG_CFI_FLASH /* for driver model */ + cfi_flash_init_dm(); #endif /* Init: no FLASHes known */ @@ -2378,7 +2380,7 @@ unsigned long flash_init (void) #endif /* CONFIG_SYS_FLASH_QUIET_TEST */ } #ifdef CONFIG_SYS_FLASH_PROTECTION - else if ((s != NULL) && (strcmp(s, "yes") == 0)) { + else if (strcmp(s, "yes") == 0) { /* * Only the U-Boot image and it's environment * is protected, all other sectors are @@ -2434,3 +2436,46 @@ unsigned long flash_init (void) return (size); } + +#ifdef CONFIG_CFI_FLASH /* for driver model */ +static int cfi_flash_probe(struct udevice *dev) +{ + void *blob = (void *)gd->fdt_blob; + int node = dev_of_offset(dev); + const fdt32_t *cell; + phys_addr_t addr; + int parent, addrc, sizec; + int len, idx; + + parent = fdt_parent_offset(blob, node); + fdt_support_default_count_cells(blob, parent, &addrc, &sizec); + /* decode regs, there may be multiple reg tuples. */ + cell = fdt_getprop(blob, node, "reg", &len); + if (!cell) + return -ENOENT; + idx = 0; + len /= sizeof(fdt32_t); + while (idx < len) { + addr = fdt_translate_address((void *)blob, + node, cell + idx); + cfi_flash_base[cfi_flash_num_flash_banks++] = addr; + idx += addrc + sizec; + } + gd->bd->bi_flashstart = cfi_flash_base[0]; + + return 0; +} + +static const struct udevice_id cfi_flash_ids[] = { + { .compatible = "cfi-flash" }, + { .compatible = "jedec-flash" }, + {} +}; + +U_BOOT_DRIVER(cfi_flash) = { + .name = "cfi_flash", + .id = UCLASS_MTD, + .of_match = cfi_flash_ids, + .probe = cfi_flash_probe, +}; +#endif /* CONFIG_CFI_FLASH */