Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sf: Enable byte program support

Browse Source 
Enabled byte program support for sst flashes in sf.

Few controllers will only support BP, so this patch gives
a tx transfer flag to set the BP so-that sf will operate
on byte program transfer.

A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI
controller to use byte program op for SST flash.

Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
master
Jagannadha Sutradharudu Teki 10 years ago committed by Simon Glass
parent 74c2cee4e8
commit 54ba653ab6
4 changed files with 20 additions and 12 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 5
      drivers/mtd/spi/sf_internal.h
  2. 18
      drivers/mtd/spi/sf_params.c
  3. 8
      drivers/mtd/spi/sf_probe.c
  4. 1
      include/spi.h

5
drivers/mtd/spi/sf_internal.h
Unescape View File

@ -40,10 +40,13 @@ enum {
SECT_4K = 1 << 0,
SECT_32K = 1 << 1,
E_FSR = 1 << 2,
WR_QPP = 1 << 3,
SST_BP = 1 << 3,
SST_WP = 1 << 4,
WR_QPP = 1 << 5,
};
#define SST_WR (SST_BP | SST_WP)
#define SPI_FLASH_3B_ADDR_LEN 3
#define SPI_FLASH_CMD_LEN (1 + SPI_FLASH_3B_ADDR_LEN)
#define SPI_FLASH_16MB_BOUN 0x1000000

18
drivers/mtd/spi/sf_params.c
Unescape View File

@ -89,16 +89,16 @@ const struct spi_flash_params spi_flash_params_table[] = {
{"N25Q1024A", 0x20bb21, 0x0, 64 * 1024, 2048, RD_FULL, WR_QPP | E_FSR | SECT_4K},
#endif
#ifdef CONFIG_SPI_FLASH_SST /* SST */
{"SST25VF040B", 0xbf258d, 0x0, 64 * 1024, 8, RD_NORM, SECT_4K | SST_WP},
{"SST25VF080B", 0xbf258e, 0x0, 64 * 1024, 16, RD_NORM, SECT_4K | SST_WP},
{"SST25VF016B", 0xbf2541, 0x0, 64 * 1024, 32, RD_NORM, SECT_4K | SST_WP},
{"SST25VF032B", 0xbf254a, 0x0, 64 * 1024, 64, RD_NORM, SECT_4K | SST_WP},
{"SST25VF040B", 0xbf258d, 0x0, 64 * 1024, 8, RD_NORM, SECT_4K | SST_WR},
{"SST25VF080B", 0xbf258e, 0x0, 64 * 1024, 16, RD_NORM, SECT_4K | SST_WR},
{"SST25VF016B", 0xbf2541, 0x0, 64 * 1024, 32, RD_NORM, SECT_4K | SST_WR},
{"SST25VF032B", 0xbf254a, 0x0, 64 * 1024, 64, RD_NORM, SECT_4K | SST_WR},
{"SST25VF064C", 0xbf254b, 0x0, 64 * 1024, 128, RD_NORM, SECT_4K},
{"SST25WF512", 0xbf2501, 0x0, 64 * 1024, 1, RD_NORM, SECT_4K | SST_WP},
{"SST25WF010", 0xbf2502, 0x0, 64 * 1024, 2, RD_NORM, SECT_4K | SST_WP},
{"SST25WF020", 0xbf2503, 0x0, 64 * 1024, 4, RD_NORM, SECT_4K | SST_WP},
{"SST25WF040", 0xbf2504, 0x0, 64 * 1024, 8, RD_NORM, SECT_4K | SST_WP},
{"SST25WF080", 0xbf2505, 0x0, 64 * 1024, 16, RD_NORM, SECT_4K | SST_WP},
{"SST25WF512", 0xbf2501, 0x0, 64 * 1024, 1, RD_NORM, SECT_4K | SST_WR},
{"SST25WF010", 0xbf2502, 0x0, 64 * 1024, 2, RD_NORM, SECT_4K | SST_WR},
{"SST25WF020", 0xbf2503, 0x0, 64 * 1024, 4, RD_NORM, SECT_4K | SST_WR},
{"SST25WF040", 0xbf2504, 0x0, 64 * 1024, 8, RD_NORM, SECT_4K | SST_WR},
{"SST25WF080", 0xbf2505, 0x0, 64 * 1024, 16, RD_NORM, SECT_4K | SST_WR},
#endif
#ifdef CONFIG_SPI_FLASH_WINBOND /* WINBOND */
{"W25P80", 0xef2014, 0x0, 64 * 1024, 16, RD_NORM, 0},

8
drivers/mtd/spi/sf_probe.c
Unescape View File

@ -136,8 +136,12 @@ static int spi_flash_validate_params(struct spi_slave *spi, u8 *idcode,
#ifndef CONFIG_DM_SPI_FLASH
flash->write = spi_flash_cmd_write_ops;
#if defined(CONFIG_SPI_FLASH_SST)
if (params->flags & SST_WP)
flash->write = sst_write_wp;
if (params->flags & SST_WR) {
if (flash->spi->op_mode_tx & SPI_OPM_TX_BP)
flash->write = sst_write_bp;
else
flash->write = sst_write_wp;
}
#endif
flash->erase = spi_flash_cmd_erase_ops;
flash->read = spi_flash_cmd_read_ops;

1
include/spi.h
Unescape View File

@ -34,6 +34,7 @@
/* SPI TX operation modes */
#define SPI_OPM_TX_QPP (1 << 0)
#define SPI_OPM_TX_BP (1 << 1)
/* SPI RX operation modes */
#define SPI_OPM_RX_AS (1 << 0)

Write Preview
Loading…
Cancel
Save