diff options
| author |   Michael Walle <michael@walle.cc> | 2021-03-22 00:51:40 +0100 |
|---|---|---|
| committer |   Tudor Ambarus <tudor.ambarus@microchip.com> | 2021-04-02 09:32:27 +0300 |
| commit | b206b82d1726f6f878891791069ab0aea2e31113 (patch) | |
| tree | 1c8fd0bc9dcb417e94f4c8f8df272e38ab86be77 /drivers/mtd | |
| parent | mtd: spi-nor: implement OTP support for Winbond and similar flashes (diff) | |
| download | linux-dev-b206b82d1726f6f878891791069ab0aea2e31113.tar.xz linux-dev-b206b82d1726f6f878891791069ab0aea2e31113.zip | |
mtd: spi-nor: winbond: add OTP support to w25q32fw/jw
With all the helper functions in place, add OTP support for the Winbond
W25Q32JW and W25Q32FW.
Both were tested on a LS1028A SoC with a NXP FSPI controller.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20210321235140.8308-4-michael@walle.cc
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/winbond.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 20b2c6f19d6f..9a81c67a60c6 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -54,14 +54,18 @@ static const struct flash_info winbond_parts[] = { { "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) }, { "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) + OTP_INFO(256, 3, 0x1000, 0x1000) + }, + { "w25q32jv", INFO(0xef7016, 0, 64 * 1024, 64, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, { "w25q32jwm", INFO(0xef8016, 0, 64 * 1024, 64, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) + OTP_INFO(256, 3, 0x1000, 0x1000) }, { "w25q64jwm", INFO(0xef8017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, @@ -132,9 +136,18 @@ static int winbond_set_4byte_addr_mode(struct spi_nor *nor, bool enable) return spi_nor_write_disable(nor); } +static const struct spi_nor_otp_ops winbond_otp_ops = { + .read = spi_nor_otp_read_secr, + .write = spi_nor_otp_write_secr, + .lock = spi_nor_otp_lock_sr2, + .is_locked = spi_nor_otp_is_locked_sr2, +}; + static void winbond_default_init(struct spi_nor *nor) { nor->params->set_4byte_addr_mode = winbond_set_4byte_addr_mode; + if (nor->params->otp.org->n_regions) + nor->params->otp.ops = &winbond_otp_ops; } static const struct spi_nor_fixups winbond_fixups = { |