diff options
| author | Takahiro Kuwano <Takahiro.Kuwano@infineon.com> | 2023-07-26 09:52:53 +0200 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@linaro.org> | 2023-07-26 11:39:11 +0200 |
| commit | eff9604390d6bb275fff1fd359f8b5e521690efa (patch) | |
| tree | 197694e53f9476ab95d2ecae8482a3f48610c1b6 /drivers/mtd | |
| parent | mtd: spi-nor: spansion: add MCP support in set_octal_dtr() (diff) | |
| download | linux-eff9604390d6bb275fff1fd359f8b5e521690efa.tar.xz linux-eff9604390d6bb275fff1fd359f8b5e521690efa.zip | |
mtd: spi-nor: spansion: add octal DTR support in RD_ANY_REG_OP
S28HS02GT uses RD_ANY_REG_OP to read status of each die. In Octal DTR
mode, RD_ANY_REG_OP needs dummy cycles (same as params->rdsr_dummy) and
data length should be 2.
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Link: https://lore.kernel.org/r/20230726075257.12985-8-tudor.ambarus@linaro.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/spansion.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index b3a710985f84..d7aa0a90949a 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -102,11 +102,17 @@ static void spansion_nor_clear_sr(struct spi_nor *nor) static int cypress_nor_sr_ready_and_clear_reg(struct spi_nor *nor, u64 addr) { + struct spi_nor_flash_parameter *params = nor->params; struct spi_mem_op op = - CYPRESS_NOR_RD_ANY_REG_OP(nor->params->addr_mode_nbytes, addr, + CYPRESS_NOR_RD_ANY_REG_OP(params->addr_mode_nbytes, addr, 0, nor->bouncebuf); int ret; + if (nor->reg_proto == SNOR_PROTO_8_8_8_DTR) { + op.dummy.nbytes = params->rdsr_dummy; + op.data.nbytes = 2; + } + ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto); if (ret) return ret; |