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mtd: spi-nor: spansion: add octal DTR support in RD_ANY_REG_OP

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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>
This commit is contained in:
Takahiro Kuwano 2023-07-26 10:52:53 +03:00 committed by Tudor Ambarus
parent 7d896a94bf
commit eff9604390
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GPG Key ID: 4B554F47A58D14E9
1 changed files with 7 additions and 1 deletions
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8
drivers/mtd/spi-nor/spansion.c
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@ -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) 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 = 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); 0, nor->bouncebuf);
int ret; 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); ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto);
if (ret) if (ret)
return ret; return ret;