sf: Remove non-meaningful comments
[oweals/u-boot.git] / drivers / mtd / spi / sf_internal.h
index ed5c391dc2c6c34fc61fe605dae5f43ecb636663..9aac0e832a76d3ae0d5947cb8e59c7affc59a0a9 100644 (file)
 /* Dual SPI flash memories - see SPI_COMM_DUAL_... */
 enum spi_dual_flash {
        SF_SINGLE_FLASH = 0,
-       SF_DUAL_STACKED_FLASH   = 1 << 0,
-       SF_DUAL_PARALLEL_FLASH  = 1 << 1,
-};
-
-/* Enum list - Full read commands */
-enum spi_read_cmds {
-       ARRAY_SLOW              = 1 << 0,
-       ARRAY_FAST              = 1 << 1,
-       DUAL_OUTPUT_FAST        = 1 << 2,
-       DUAL_IO_FAST            = 1 << 3,
-       QUAD_OUTPUT_FAST        = 1 << 4,
-       QUAD_IO_FAST            = 1 << 5,
-};
-
-/* Normal - Extended - Full command set */
-#define RD_NORM                (ARRAY_SLOW | ARRAY_FAST)
-#define RD_EXTN                (RD_NORM | DUAL_OUTPUT_FAST | DUAL_IO_FAST)
-#define RD_FULL                (RD_EXTN | QUAD_OUTPUT_FAST | QUAD_IO_FAST)
-
-/* sf param flags */
-enum {
-#ifdef CONFIG_SPI_FLASH_USE_4K_SECTORS
-       SECT_4K         = 1 << 0,
-#else
-       SECT_4K         = 0 << 0,
-#endif
-       SECT_32K        = 1 << 1,
-       E_FSR           = 1 << 2,
-       SST_WR          = 1 << 3,
-       WR_QPP          = 1 << 4,
+       SF_DUAL_STACKED_FLASH   = BIT(0),
+       SF_DUAL_PARALLEL_FLASH  = BIT(1),
 };
 
 enum spi_nor_option_flags {
-       SNOR_F_SST_WR           = (1 << 0),
-       SNOR_F_USE_FSR          = (1 << 1),
+       SNOR_F_SST_WR           = BIT(0),
+       SNOR_F_USE_FSR          = BIT(1),
 };
 
 #define SPI_FLASH_3B_ADDR_LEN          3
@@ -67,7 +39,6 @@ enum spi_nor_option_flags {
 
 /* Erase commands */
 #define CMD_ERASE_4K                   0x20
-#define CMD_ERASE_32K                  0x52
 #define CMD_ERASE_CHIP                 0xc7
 #define CMD_ERASE_64K                  0xd8
 
@@ -75,12 +46,9 @@ enum spi_nor_option_flags {
 #define CMD_WRITE_STATUS               0x01
 #define CMD_PAGE_PROGRAM               0x02
 #define CMD_WRITE_DISABLE              0x04
-#define CMD_READ_STATUS                        0x05
-#define CMD_QUAD_PAGE_PROGRAM          0x32
-#define CMD_READ_STATUS1               0x35
 #define CMD_WRITE_ENABLE               0x06
-#define CMD_READ_CONFIG                        0x35
-#define CMD_FLAG_STATUS                        0x70
+#define CMD_QUAD_PAGE_PROGRAM          0x32
+#define CMD_WRITE_EVCR                 0x61
 
 /* Read commands */
 #define CMD_READ_ARRAY_SLOW            0x03
@@ -90,6 +58,11 @@ enum spi_nor_option_flags {
 #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
+#define CMD_READ_EVCR                  0x65
 
 /* Bank addr access commands */
 #ifdef CONFIG_SPI_FLASH_BAR
@@ -100,10 +73,11 @@ enum spi_nor_option_flags {
 #endif
 
 /* Common status */
-#define STATUS_WIP                     (1 << 0)
-#define STATUS_QEB_WINSPAN             (1 << 1)
-#define STATUS_QEB_MXIC                (1 << 6)
-#define STATUS_PEC                     (1 << 7)
+#define STATUS_WIP                     BIT(0)
+#define STATUS_QEB_WINSPAN             BIT(1)
+#define STATUS_QEB_MXIC                        BIT(6)
+#define STATUS_PEC                     BIT(7)
+#define STATUS_QEB_MICRON              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 */
@@ -124,29 +98,45 @@ int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len,
                const void *buf);
 #endif
 
-/**
- * struct spi_flash_params - SPI/QSPI flash device params structure
- *
- * @name:              Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO])
- * @jedec:             Device jedec ID (0x[1byte_manuf_id][2byte_dev_id])
- * @ext_jedec:         Device ext_jedec ID
- * @sector_size:       Isn't necessarily a sector size from vendor,
- *                     the size listed here is what works with CMD_ERASE_64K
- * @nr_sectors:                No.of sectors on this device
- * @e_rd_cmd:          Enum list for read commands
- * @flags:             Important param, for flash specific behaviour
- */
-struct spi_flash_params {
-       const char *name;
-       u32 jedec;
-       u16 ext_jedec;
-       u32 sector_size;
-       u32 nr_sectors;
-       u8 e_rd_cmd;
-       u16 flags;
+#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_len;
+
+       /*
+        * 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;
+
+       u16             page_size;
+
+       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)
 };
 
-extern const struct spi_flash_params spi_flash_params_table[];
+extern const struct spi_flash_info spi_flash_ids[];
 
 /* 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);