X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fmtd%2Fspi%2Fspi_flash.c;h=813f08dca451e4f29d24a3f438a5a94dfec33f7b;hb=475bf816f1fbc7be5c5ba12cd456841a0f9508c9;hp=8a60c72926d911ac6438873d989a452e9b222750;hpb=12f229ea8f6c8e20f8fd07906eafc853c4c354a9;p=oweals%2Fu-boot.git diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c index 8a60c72926..813f08dca4 100644 --- a/drivers/mtd/spi/spi_flash.c +++ b/drivers/mtd/spi/spi_flash.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "sf_internal.h" @@ -164,7 +165,8 @@ bar_end: return flash->bank_curr; } -static int spi_flash_read_bar(struct spi_flash *flash, u8 idcode0) +static int spi_flash_read_bar(struct spi_flash *flash, + const struct spi_flash_info *info) { u8 curr_bank = 0; int ret; @@ -172,7 +174,7 @@ static int spi_flash_read_bar(struct spi_flash *flash, u8 idcode0) if (flash->size <= SPI_FLASH_16MB_BOUN) goto bar_end; - switch (idcode0) { + switch (JEDEC_MFR(info)) { case SPI_FLASH_CFI_MFR_SPANSION: flash->bank_read_cmd = CMD_BANKADDR_BRRD; flash->bank_write_cmd = CMD_BANKADDR_BRWR; @@ -264,7 +266,8 @@ static int spi_flash_ready(struct spi_flash *flash) static int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout) { - int timebase, ret; + unsigned long timebase; + int ret; timebase = get_timer(0); @@ -454,8 +457,16 @@ int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, return ret; } +/* + * TODO: remove the weak after all the other spi_flash_copy_mmap + * implementations removed from drivers + */ void __weak spi_flash_copy_mmap(void *data, void *offset, size_t len) { +#ifdef CONFIG_DMA + if (!dma_memcpy(data, offset, len)) + return; +#endif memcpy(data, offset, len); } @@ -656,7 +667,7 @@ int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len, #if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST) static void stm_get_locked_range(struct spi_flash *flash, u8 sr, loff_t *ofs, - u32 *len) + u64 *len) { u8 mask = SR_BP2 | SR_BP1 | SR_BP0; int shift = ffs(mask) - 1; @@ -676,11 +687,11 @@ static void stm_get_locked_range(struct spi_flash *flash, u8 sr, loff_t *ofs, /* * Return 1 if the entire region is locked, 0 otherwise */ -static int stm_is_locked_sr(struct spi_flash *flash, u32 ofs, u32 len, +static int stm_is_locked_sr(struct spi_flash *flash, loff_t ofs, u64 len, u8 sr) { loff_t lock_offs; - u32 lock_len; + u64 lock_len; stm_get_locked_range(flash, sr, &lock_offs, &lock_len); @@ -914,9 +925,35 @@ static int micron_quad_enable(struct spi_flash *flash) } #endif -static int set_quad_mode(struct spi_flash *flash, u8 idcode0) +static const struct spi_flash_info *spi_flash_read_id(struct spi_flash *flash) +{ + int tmp; + u8 id[SPI_FLASH_MAX_ID_LEN]; + const struct spi_flash_info *info; + + tmp = spi_flash_cmd(flash->spi, CMD_READ_ID, id, SPI_FLASH_MAX_ID_LEN); + if (tmp < 0) { + printf("SF: error %d reading JEDEC ID\n", tmp); + return ERR_PTR(tmp); + } + + info = spi_flash_ids; + for (; info->name != NULL; info++) { + if (info->id_len) { + if (!memcmp(info->id, id, info->id_len)) + return info; + } + } + + printf("SF: unrecognized JEDEC id bytes: %02x, %02x, %02x\n", + id[0], id[1], id[2]); + return ERR_PTR(-ENODEV); +} + +static int set_quad_mode(struct spi_flash *flash, + const struct spi_flash_info *info) { - switch (idcode0) { + switch (JEDEC_MFR(info)) { #ifdef CONFIG_SPI_FLASH_MACRONIX case SPI_FLASH_CFI_MFR_MACRONIX: return macronix_quad_enable(flash); @@ -931,7 +968,8 @@ static int set_quad_mode(struct spi_flash *flash, u8 idcode0) return micron_quad_enable(flash); #endif default: - printf("SF: Need set QEB func for %02x flash\n", idcode0); + printf("SF: Need set QEB func for %02x flash\n", + JEDEC_MFR(info)); return -1; } } @@ -964,69 +1002,26 @@ int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash) int spi_flash_scan(struct spi_flash *flash) { struct spi_slave *spi = flash->spi; - const struct spi_flash_params *params; - u16 jedec, ext_jedec; - u8 cmd, idcode[5]; - int ret; - static u8 spi_read_cmds_array[] = { - CMD_READ_ARRAY_SLOW, - CMD_READ_ARRAY_FAST, - CMD_READ_DUAL_OUTPUT_FAST, - CMD_READ_QUAD_OUTPUT_FAST, - CMD_READ_DUAL_IO_FAST, - CMD_READ_QUAD_IO_FAST }; - - /* Read the ID codes */ - ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode)); - if (ret) { - printf("SF: Failed to get idcodes\n"); - return -EINVAL; - } - -#ifdef DEBUG - printf("SF: Got idcodes\n"); - print_buffer(0, idcode, 1, sizeof(idcode), 0); -#endif - - jedec = idcode[1] << 8 | idcode[2]; - ext_jedec = idcode[3] << 8 | idcode[4]; - - /* Validate params from spi_flash_params table */ - params = spi_flash_params_table; - for (; params->name != NULL; params++) { - if ((params->jedec >> 16) == idcode[0]) { - if ((params->jedec & 0xFFFF) == jedec) { - if (params->ext_jedec == 0) - break; - else if (params->ext_jedec == ext_jedec) - break; - } - } - } + const struct spi_flash_info *info = NULL; + int ret = -1; - if (!params->name) { - printf("SF: Unsupported flash IDs: "); - printf("manuf %02x, jedec %04x, ext_jedec %04x\n", - idcode[0], jedec, ext_jedec); - return -EPROTONOSUPPORT; - } + info = spi_flash_read_id(flash); + if (IS_ERR_OR_NULL(info)) + return -ENOENT; /* Flash powers up read-only, so clear BP# bits */ - if (idcode[0] == SPI_FLASH_CFI_MFR_ATMEL || - idcode[0] == SPI_FLASH_CFI_MFR_MACRONIX || - idcode[0] == SPI_FLASH_CFI_MFR_SST) + if (JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_ATMEL || + JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_MACRONIX || + JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_SST) write_sr(flash, 0); - /* Assign spi data */ - flash->name = params->name; + flash->name = info->name; flash->memory_map = spi->memory_map; flash->dual_flash = spi->option; - /* Assign spi flash flags */ - if (params->flags & SST_WR) + if (info->flags & SST_WR) flash->flags |= SNOR_F_SST_WR; - /* Assign spi_flash ops */ #ifndef CONFIG_DM_SPI_FLASH flash->write = spi_flash_cmd_write_ops; #if defined(CONFIG_SPI_FLASH_SST) @@ -1041,52 +1036,46 @@ int spi_flash_scan(struct spi_flash *flash) flash->read = spi_flash_cmd_read_ops; #endif - /* lock hooks are flash specific - assign them based on idcode0 */ - switch (idcode[0]) { #if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST) - case SPI_FLASH_CFI_MFR_STMICRO: - case SPI_FLASH_CFI_MFR_SST: + /* NOR protection support for STmicro/Micron chips and similar */ + if (JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_STMICRO || + JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_SST) { flash->flash_lock = stm_lock; flash->flash_unlock = stm_unlock; flash->flash_is_locked = stm_is_locked; -#endif - break; - default: - debug("SF: Lock ops not supported for %02x flash\n", idcode[0]); } +#endif /* Compute the flash size */ flash->shift = (flash->dual_flash & SF_DUAL_PARALLEL_FLASH) ? 1 : 0; + flash->page_size = info->page_size; /* * The Spansion S25FL032P and S25FL064P have 256b pages, yet use the * 0x4d00 Extended JEDEC code. The rest of the Spansion flashes with * the 0x4d00 Extended JEDEC code have 512b pages. All of the others * have 256b pages. */ - if (ext_jedec == 0x4d00) { - if ((jedec == 0x0215) || (jedec == 0x216)) - flash->page_size = 256; - else + if (JEDEC_EXT(info) == 0x4d00) { + if ((JEDEC_ID(info) != 0x0215) && + (JEDEC_ID(info) != 0x0216)) flash->page_size = 512; - } else { - flash->page_size = 256; } flash->page_size <<= flash->shift; - flash->sector_size = params->sector_size << flash->shift; - flash->size = flash->sector_size * params->nr_sectors << flash->shift; + flash->sector_size = info->sector_size << flash->shift; + flash->size = flash->sector_size * info->n_sectors << flash->shift; #ifdef CONFIG_SF_DUAL_FLASH if (flash->dual_flash & SF_DUAL_STACKED_FLASH) flash->size <<= 1; #endif +#ifdef CONFIG_SPI_FLASH_USE_4K_SECTORS /* Compute erase sector and command */ - if (params->flags & SECT_4K) { + if (info->flags & SECT_4K) { flash->erase_cmd = CMD_ERASE_4K; flash->erase_size = 4096 << flash->shift; - } else if (params->flags & SECT_32K) { - flash->erase_cmd = CMD_ERASE_32K; - flash->erase_size = 32768 << flash->shift; - } else { + } else +#endif + { flash->erase_cmd = CMD_ERASE_64K; flash->erase_size = flash->sector_size; } @@ -1094,18 +1083,17 @@ int spi_flash_scan(struct spi_flash *flash) /* Now erase size becomes valid sector size */ flash->sector_size = flash->erase_size; - /* Look for the fastest read cmd */ - cmd = fls(params->e_rd_cmd & spi->mode_rx); - if (cmd) { - cmd = spi_read_cmds_array[cmd - 1]; - flash->read_cmd = cmd; - } else { - /* Go for default supported read cmd */ - flash->read_cmd = CMD_READ_ARRAY_FAST; - } - - /* Not require to look for fastest only two write cmds yet */ - if (params->flags & WR_QPP && spi->mode & SPI_TX_QUAD) + /* Look for read commands */ + flash->read_cmd = CMD_READ_ARRAY_FAST; + if (spi->mode & SPI_RX_SLOW) + flash->read_cmd = CMD_READ_ARRAY_SLOW; + else if (spi->mode & SPI_RX_QUAD && info->flags & RD_QUAD) + flash->read_cmd = CMD_READ_QUAD_OUTPUT_FAST; + else if (spi->mode & SPI_RX_DUAL && info->flags & RD_DUAL) + flash->read_cmd = CMD_READ_DUAL_OUTPUT_FAST; + + /* Look for write commands */ + if (info->flags & WR_QPP && spi->mode & SPI_TX_QUAD) flash->write_cmd = CMD_QUAD_PAGE_PROGRAM; else /* Go for default supported write cmd */ @@ -1115,9 +1103,10 @@ int spi_flash_scan(struct spi_flash *flash) if ((flash->read_cmd == CMD_READ_QUAD_OUTPUT_FAST) || (flash->read_cmd == CMD_READ_QUAD_IO_FAST) || (flash->write_cmd == CMD_QUAD_PAGE_PROGRAM)) { - ret = set_quad_mode(flash, idcode[0]); + ret = set_quad_mode(flash, info); if (ret) { - debug("SF: Fail to set QEB for %02x\n", idcode[0]); + debug("SF: Fail to set QEB for %02x\n", + JEDEC_MFR(info)); return -EINVAL; } } @@ -1142,13 +1131,13 @@ int spi_flash_scan(struct spi_flash *flash) } #ifdef CONFIG_SPI_FLASH_STMICRO - if (params->flags & E_FSR) + if (info->flags & E_FSR) flash->flags |= SNOR_F_USE_FSR; #endif /* Configure the BAR - discover bank cmds and read current bank */ #ifdef CONFIG_SPI_FLASH_BAR - ret = spi_flash_read_bar(flash, idcode[0]); + ret = spi_flash_read_bar(flash, info); if (ret < 0) return ret; #endif