UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

mtd: spi-nor: issi: is25lp256: Init flash based on SFDP 

Get rid of the static initialization of the flash parameters and
init them when parsing SFDP.
Generated a 256 Kbyte random data and did an erase, write, read back
and compare test. The flash uses for reads SPINOR_OP_READ_1_4_4_4B 0xec,
for erases SPINOR_OP_BE_4K_4B 0x21, and for writes SPINOR_OP_PP_4B 0x12.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211207140254.87681-15-tudor.ambarus@microchip.com
This commit is contained in:
Tudor Ambarus 2021-12-07 16:02:54 +02:00
parent 047275f7de
commit 22bfe94528
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/spi-nor/issi.c
View File

@ -46,7 +46,7 @@ static const struct flash_info issi_parts[] = {
{ "is25lp128", INFO(0x9d6018, 0, 64 * 1024, 256)
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
{ "is25lp256", INFO(0x9d6019, 0, 64 * 1024, 512)
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
PARSE_SFDP
FIXUP_FLAGS(SPI_NOR_4B_OPCODES)
.fixups = &is25lp256_fixups },
{ "is25wp032", INFO(0x9d7016, 0, 64 * 1024, 64)