diff options
Diffstat (limited to 'drivers/mtd/spi/sf_internal.h')
| -rw-r--r-- | drivers/mtd/spi/sf_internal.h | 225 |
1 files changed, 41 insertions, 184 deletions
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index 46a5044417..a6bf734830 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -12,142 +12,65 @@ #include <linux/types.h> #include <linux/compiler.h> -/* Dual SPI flash memories - see SPI_COMM_DUAL_... */ -enum spi_dual_flash { - SF_SINGLE_FLASH = 0, - SF_DUAL_STACKED_FLASH = BIT(0), - SF_DUAL_PARALLEL_FLASH = BIT(1), -}; - -enum spi_nor_option_flags { - SNOR_F_SST_WR = BIT(0), - SNOR_F_USE_FSR = BIT(1), - SNOR_F_USE_UPAGE = BIT(3), -}; +#define SPI_NOR_MAX_ID_LEN 6 +#define SPI_NOR_MAX_ADDR_WIDTH 4 -#define SPI_FLASH_3B_ADDR_LEN 3 -#define SPI_FLASH_CMD_LEN (1 + SPI_FLASH_3B_ADDR_LEN) -#define SPI_FLASH_16MB_BOUN 0x1000000 - -/* CFI Manufacture ID's */ -#define SPI_FLASH_CFI_MFR_SPANSION 0x01 -#define SPI_FLASH_CFI_MFR_STMICRO 0x20 -#define SPI_FLASH_CFI_MFR_MICRON 0x2C -#define SPI_FLASH_CFI_MFR_MACRONIX 0xc2 -#define SPI_FLASH_CFI_MFR_SST 0xbf -#define SPI_FLASH_CFI_MFR_WINBOND 0xef -#define SPI_FLASH_CFI_MFR_ATMEL 0x1f - -/* Erase commands */ -#define CMD_ERASE_4K 0x20 -#define CMD_ERASE_CHIP 0xc7 -#define CMD_ERASE_64K 0xd8 - -/* Write commands */ -#define CMD_WRITE_STATUS 0x01 -#define CMD_PAGE_PROGRAM 0x02 -#define CMD_WRITE_DISABLE 0x04 -#define CMD_WRITE_ENABLE 0x06 -#define CMD_QUAD_PAGE_PROGRAM 0x32 - -/* Read commands */ -#define CMD_READ_ARRAY_SLOW 0x03 -#define CMD_READ_ARRAY_FAST 0x0b -#define CMD_READ_DUAL_OUTPUT_FAST 0x3b -#define CMD_READ_DUAL_IO_FAST 0xbb -#define CMD_READ_QUAD_OUTPUT_FAST 0x6b -#define CMD_READ_QUAD_IO_FAST 0xeb -#define CMD_READ_ID 0x9f -#define CMD_READ_STATUS 0x05 -#define CMD_READ_STATUS1 0x35 -#define CMD_READ_CONFIG 0x35 -#define CMD_FLAG_STATUS 0x70 - -/* Bank addr access commands */ -#ifdef CONFIG_SPI_FLASH_BAR -# define CMD_BANKADDR_BRWR 0x17 -# define CMD_BANKADDR_BRRD 0x16 -# define CMD_EXTNADDR_WREAR 0xC5 -# define CMD_EXTNADDR_RDEAR 0xC8 +struct flash_info { +#if !CONFIG_IS_ENABLED(SPI_FLASH_TINY) + char *name; #endif -/* Common status */ -#define STATUS_WIP BIT(0) -#define STATUS_QEB_WINSPAN BIT(1) -#define STATUS_QEB_MXIC BIT(6) -#define STATUS_PEC BIT(7) -#define SR_BP0 BIT(2) /* Block protect 0 */ -#define SR_BP1 BIT(3) /* Block protect 1 */ -#define SR_BP2 BIT(4) /* Block protect 2 */ - -/* Flash timeout values */ -#define SPI_FLASH_PROG_TIMEOUT (2 * CONFIG_SYS_HZ) -#define SPI_FLASH_PAGE_ERASE_TIMEOUT (5 * CONFIG_SYS_HZ) -#define SPI_FLASH_SECTOR_ERASE_TIMEOUT (10 * CONFIG_SYS_HZ) - -/* SST specific */ -#ifdef CONFIG_SPI_FLASH_SST -#define SST26_CMD_READ_BPR 0x72 -#define SST26_CMD_WRITE_BPR 0x42 - -#define SST26_BPR_8K_NUM 4 -#define SST26_MAX_BPR_REG_LEN (18 + 1) -#define SST26_BOUND_REG_SIZE ((32 + SST26_BPR_8K_NUM * 8) * SZ_1K) - -enum lock_ctl { - SST26_CTL_LOCK, - SST26_CTL_UNLOCK, - SST26_CTL_CHECK -}; - -# define CMD_SST_BP 0x02 /* Byte Program */ -# define CMD_SST_AAI_WP 0xAD /* Auto Address Incr Word Program */ - -int sst_write_wp(struct spi_flash *flash, u32 offset, size_t len, - const void *buf); -int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len, - const void *buf); -#endif - -#define JEDEC_MFR(info) ((info)->id[0]) -#define JEDEC_ID(info) (((info)->id[1]) << 8 | ((info)->id[2])) -#define JEDEC_EXT(info) (((info)->id[3]) << 8 | ((info)->id[4])) -#define SPI_FLASH_MAX_ID_LEN 6 - -struct spi_flash_info { - /* Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO]) */ - const char *name; - /* * This array stores the ID bytes. * The first three bytes are the JEDIC ID. * JEDEC ID zero means "no ID" (mostly older chips). */ - u8 id[SPI_FLASH_MAX_ID_LEN]; + u8 id[SPI_NOR_MAX_ID_LEN]; u8 id_len; - /* - * The size listed here is what works with SPINOR_OP_SE, which isn't + /* The size listed here is what works with SPINOR_OP_SE, which isn't * necessarily called a "sector" by the vendor. */ - u32 sector_size; - u32 n_sectors; + unsigned int sector_size; + u16 n_sectors; u16 page_size; + u16 addr_width; u16 flags; -#define SECT_4K BIT(0) /* CMD_ERASE_4K works uniformly */ -#define E_FSR BIT(1) /* use flag status register for */ -#define SST_WR BIT(2) /* use SST byte/word programming */ -#define WR_QPP BIT(3) /* use Quad Page Program */ -#define RD_QUAD BIT(4) /* use Quad Read */ -#define RD_DUAL BIT(5) /* use Dual Read */ -#define RD_QUADIO BIT(6) /* use Quad IO Read */ -#define RD_DUALIO BIT(7) /* use Dual IO Read */ -#define RD_FULL (RD_QUAD | RD_DUAL | RD_QUADIO | RD_DUALIO) +#define SECT_4K BIT(0) /* SPINOR_OP_BE_4K works uniformly */ +#define SPI_NOR_NO_ERASE BIT(1) /* No erase command needed */ +#define SST_WRITE BIT(2) /* use SST byte programming */ +#define SPI_NOR_NO_FR BIT(3) /* Can't do fastread */ +#define SECT_4K_PMC BIT(4) /* SPINOR_OP_BE_4K_PMC works uniformly */ +#define SPI_NOR_DUAL_READ BIT(5) /* Flash supports Dual Read */ +#define SPI_NOR_QUAD_READ BIT(6) /* Flash supports Quad Read */ +#define USE_FSR BIT(7) /* use flag status register */ +#define SPI_NOR_HAS_LOCK BIT(8) /* Flash supports lock/unlock via SR */ +#define SPI_NOR_HAS_TB BIT(9) /* + * Flash SR has Top/Bottom (TB) protect + * bit. Must be used with + * SPI_NOR_HAS_LOCK. + */ +#define SPI_S3AN BIT(10) /* + * Xilinx Spartan 3AN In-System Flash + * (MFR cannot be used for probing + * because it has the same value as + * ATMEL flashes) + */ +#define SPI_NOR_4B_OPCODES BIT(11) /* + * Use dedicated 4byte address op codes + * to support memory size above 128Mib. + */ +#define NO_CHIP_ERASE BIT(12) /* Chip does not support chip erase */ +#define SPI_NOR_SKIP_SFDP BIT(13) /* Skip parsing of SFDP tables */ +#define USE_CLSR BIT(14) /* use CLSR command */ }; -extern const struct spi_flash_info spi_flash_ids[]; +extern const struct flash_info spi_nor_ids[]; + +#define JEDEC_MFR(info) ((info)->id[0]) +#define JEDEC_ID(info) (((info)->id[1]) << 8 | ((info)->id[2])) /* Send a single-byte command to the device and read the response */ int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len); @@ -167,78 +90,12 @@ int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len, const void *data, size_t data_len); -/* Flash erase(sectors) operation, support all possible erase commands */ -int spi_flash_cmd_erase_ops(struct spi_flash *flash, u32 offset, size_t len); - /* Get software write-protect value (BP bits) */ int spi_flash_cmd_get_sw_write_prot(struct spi_flash *flash); -/* Lock stmicro spi flash region */ -int stm_lock(struct spi_flash *flash, u32 ofs, size_t len); - -/* Unlock stmicro spi flash region */ -int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len); - -/* Check if a stmicro spi flash region is completely locked */ -int stm_is_locked(struct spi_flash *flash, u32 ofs, size_t len); - -/* Enable writing on the SPI flash */ -static inline int spi_flash_cmd_write_enable(struct spi_flash *flash) -{ - return spi_flash_cmd(flash->spi, CMD_WRITE_ENABLE, NULL, 0); -} - -/* Disable writing on the SPI flash */ -static inline int spi_flash_cmd_write_disable(struct spi_flash *flash) -{ - return spi_flash_cmd(flash->spi, CMD_WRITE_DISABLE, NULL, 0); -} - -/* - * Used for spi_flash write operation - * - SPI claim - * - spi_flash_cmd_write_enable - * - spi_flash_cmd_write - * - spi_flash_wait_till_ready - * - SPI release - */ -int spi_flash_write_common(struct spi_flash *flash, const u8 *cmd, - size_t cmd_len, const void *buf, size_t buf_len); - -/* - * Flash write operation, support all possible write commands. - * Write the requested data out breaking it up into multiple write - * commands as needed per the write size. - */ -int spi_flash_cmd_write_ops(struct spi_flash *flash, u32 offset, - size_t len, const void *buf); - -/* - * Same as spi_flash_cmd_read() except it also claims/releases the SPI - * bus. Used as common part of the ->read() operation. - */ -int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, - size_t cmd_len, void *data, size_t data_len); - -/* Flash read operation, support all possible read commands */ -int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, - size_t len, void *data); #ifdef CONFIG_SPI_FLASH_MTD int spi_flash_mtd_register(struct spi_flash *flash); void spi_flash_mtd_unregister(void); #endif - -/** - * spi_flash_scan - scan the SPI FLASH - * @flash: the spi flash structure - * - * The drivers can use this fuction to scan the SPI FLASH. - * In the scanning, it will try to get all the necessary information to - * fill the spi_flash{}. - * - * Return: 0 for success, others for failure. - */ -int spi_flash_scan(struct spi_flash *flash); - #endif /* _SF_INTERNAL_H_ */ |