diff options
Diffstat (limited to 'drivers/mtd/spi-nor')
| -rw-r--r-- | drivers/mtd/spi-nor/core.h | 5 | ||||
| -rw-r--r-- | drivers/mtd/spi-nor/sfdp.c | 4 |
2 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h index 7dc4cda41db3..85b0cf254e97 100644 --- a/drivers/mtd/spi-nor/core.h +++ b/drivers/mtd/spi-nor/core.h @@ -341,6 +341,10 @@ struct spi_nor_otp { * ECC unit size for ECC-ed flashes. * @page_size: the page size of the SPI NOR flash memory. * @addr_nbytes: number of address bytes to send. + * @addr_mode_nbytes: number of address bytes of current address mode. Useful + * when the flash operates with 4B opcodes but needs the + * internal address mode for opcodes that don't have a 4B + * opcode correspondent. * @rdsr_dummy: dummy cycles needed for Read Status Register command * in octal DTR mode. * @rdsr_addr_nbytes: dummy address bytes needed for Read Status Register @@ -374,6 +378,7 @@ struct spi_nor_flash_parameter { u32 writesize; u32 page_size; u8 addr_nbytes; + u8 addr_mode_nbytes; u8 rdsr_dummy; u8 rdsr_addr_nbytes; diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c index 3a48173a2d78..2257f1b4c2e2 100644 --- a/drivers/mtd/spi-nor/sfdp.c +++ b/drivers/mtd/spi-nor/sfdp.c @@ -463,10 +463,12 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor, case BFPT_DWORD1_ADDRESS_BYTES_3_ONLY: case BFPT_DWORD1_ADDRESS_BYTES_3_OR_4: params->addr_nbytes = 3; + params->addr_mode_nbytes = 3; break; case BFPT_DWORD1_ADDRESS_BYTES_4_ONLY: params->addr_nbytes = 4; + params->addr_mode_nbytes = 4; break; default: @@ -653,7 +655,7 @@ static u8 spi_nor_smpt_addr_nbytes(const struct spi_nor *nor, const u32 settings return 4; case SMPT_CMD_ADDRESS_LEN_USE_CURRENT: default: - return nor->params->addr_nbytes; + return nor->params->addr_mode_nbytes; } } |