diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2016-08-11 18:24:54 -0500 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-08-19 18:15:08 +0200 |
| commit | 6f1155916a8b2f5409d0992963a1c16178794a48 (patch) | |
| tree | 5949ec3c31b4a3dd150aa70a4f95257e43cc1888 /src/drivers/spi/Kconfig | |
| parent | 5180dd2c4b6fa7756c43485a8a0f2ca5015cc774 (diff) | |
drivers/spi: provide optional implementation of boot_device_rw()
On many x86 platforms the boot device is SPI which is memory
mapped. However, in order to write to the boot device one needs
to use the SPI api. Therefore, provide a common implementation
of boot_device_rw() which has no mmap() functionality. It only
reads, writes, and erases. This will be used in the existing
infrastructure but in a SPI agnostic way.
Two options are added:
1. BOOT_DEVICE_SPI_FLASH_RW_NOMMAP
2. BOOT_DEVICE_SPI_FLASH_RW_NOMMAP_EARLY
The former is auto-selected when COMMON_CBFS_SPI_WRAPPER is not
selected. The latter can be used to include the implementation
in the early stages such as bootblock, verstage, and romstage.
BUG=chrome-os-partner:56151
Change-Id: I2aa75f88409309e3f9b9bd79b52d27c0061139c8
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16200
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/drivers/spi/Kconfig')
| -rw-r--r-- | src/drivers/spi/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/drivers/spi/Kconfig b/src/drivers/spi/Kconfig index 5eb9b56557..4c2fd1f060 100644 --- a/src/drivers/spi/Kconfig +++ b/src/drivers/spi/Kconfig @@ -39,6 +39,23 @@ config BOOT_DEVICE_SPI_FLASH_BUS help Which SPI bus the boot device is connected to. +config BOOT_DEVICE_SPI_FLASH_RW_NOMMAP + bool + default y if !COMMON_CBFS_SPI_WRAPPER + default n + depends on BOOT_DEVICE_SPI_FLASH + help + Provide common implementation of the RW boot device that + doesn't provide mmap() operations. + +config BOOT_DEVICE_SPI_FLASH_RW_NOMMAP_EARLY + bool + default n + depends on BOOT_DEVICE_SPI_FLASH_RW_NOMMAP + help + Include the common implementation in all stages, including the + early ones. + config SPI_FLASH_INCLUDE_ALL_DRIVERS bool default n if COMMON_CBFS_SPI_WRAPPER |