diff options
| author | Takahiro Kuwano | 2023-12-22 14:46:05 +0900 |
|---|---|---|
| committer | Jagan Teki | 2024-01-29 19:34:17 +0530 |
| commit | e70ac288708c006251a80b7b69fc49423f19e454 (patch) | |
| tree | 495522ee6fad21d5c527b48f45b529277ca23ae0 /include/linux | |
| parent | d386fa8b0dd919d2352a2a9422684516227af3b8 (diff) | |
mtd: spi-nor-core: Rework spi_nor_cypress_octal_dtr_enable()
Enabling Octal DTR mode in multi-die package parts requires reister setup
for each die. That can be done by simple for-loop. write_enable() takes
effect to all die at once so we can call it before the loop. Besides we
can replace spi_mem_exec_op() calls with spansion_read/write_any_reg().
And finally, we must mask CFR2V[7:4] when changing dummy cycles, as
CFR2V[7] indicates current addressing mode and that should be 1 (4-byte
address mode) for multi-die package parts.
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/spi-nor.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index 8a94e120372..d1dbf3eadbf 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -185,6 +185,7 @@ #define SPINOR_REG_CYPRESS_STR1V 0x00800000 #define SPINOR_REG_CYPRESS_CFR1V 0x00800002 #define SPINOR_REG_CYPRESS_CFR2V 0x00800003 +#define SPINOR_REG_CYPRESS_CFR2_MEMLAT_MASK GENMASK(3, 0) #define SPINOR_REG_CYPRESS_CFR2_MEMLAT_11_24 0xb #define SPINOR_REG_CYPRESS_CFR3V 0x00800004 #define SPINOR_REG_CYPRESS_CFR3_PGSZ BIT(4) /* Page size. */ |