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| author | Fred Reitberger <reitbergerfred@gmail.com> | 2023-03-21 15:37:06 -0400 |
|---|---|---|
| committer | Lean Sheng Tan <sheng.tan@9elements.com> | 2023-03-26 20:53:48 +0000 |
| commit | 52be7f6b1091f2dbd2b73ea9ede6ef95caa4ea17 (patch) | |
| tree | 60435ab3fbdfe5f8ad3377f94ac114b85a6ef219 /src/drivers/spi/Kconfig | |
| parent | 75e720bf02c0db900a0cd2f0c47c7187fbb98b5f (diff) | |
drivers/spi: Add SPI_FLASH_FORCE_4_BYTE_ADDR_MODE
Add Kconfig option to force 4-byte addressing mode.
Some platforms require the flash to stay in 4-byte addressing mode where
it expects 4-byte addresses on regular commands.
Signed-off-by: Fred Reitberger <reitbergerfred@gmail.com>
Change-Id: I2e41da2a78285c23c1c1d97eaf3969749812327b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73860
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Diffstat (limited to 'src/drivers/spi/Kconfig')
| -rw-r--r-- | src/drivers/spi/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/drivers/spi/Kconfig b/src/drivers/spi/Kconfig index b7650dd31d..8c251d7fbc 100644 --- a/src/drivers/spi/Kconfig +++ b/src/drivers/spi/Kconfig @@ -173,6 +173,14 @@ config SPI_FLASH_EXIT_4_BYTE_ADDR_MODE On flashes that don't support 4-byte addressing mode or where it is already disabled, this command should be a no-op. +config SPI_FLASH_FORCE_4_BYTE_ADDR_MODE + bool + default n + help + This will force coreboot to send addresses as 4-bytes instead of 3-bytes. + On some platforms with SPI flashes larger than 16MB, the SPI flash may need + to remain in 4-byte addressing mode. + endif # SPI_FLASH config HAVE_EM100PRO_SPI_CONSOLE_SUPPORT |