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| author | Hung-Te Lin <hungte@chromium.org> | 2013-04-15 18:27:24 +0800 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-04-16 00:32:49 +0200 |
| commit | 6bfbb33a64f95bcfdf46f8a35c342177886bb594 (patch) | |
| tree | fde12a80d851f1caac9e1ca3515a566a7c310abb /src/mainboard | |
| parent | 07e0f1bf1a2781102e6f6a242a7a97944b0f3ba0 (diff) | |
| download | coreboot-6bfbb33a64f95bcfdf46f8a35c342177886bb594.tar.xz | |
ec/google: Support Google's Chrome EC on I2C interface.
Google's Chrome EC can be installed on LPC or I2C bus, using different command
protocol. This commit adds I2C support for devices like Google/Snow.
Note: I2C interface cannot be automatically probed so the bus and chip number
must be explicitly set.
Verified by booting Google/Snow, with following console output:
Google Chrome EC: Hello got back 11223344 status (0)
Google Chrome EC: version:
ro: snow_v1.3.108-30f8374
rw: snow_v1.3.128-e35f60e
running image: 1
Change-Id: I8023eb96cf477755d277fd7991bdb7d9392f10f7
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3074
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/snow/Kconfig | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/mainboard/google/snow/Kconfig b/src/mainboard/google/snow/Kconfig index f0700560af..6d3d7c8bce 100644 --- a/src/mainboard/google/snow/Kconfig +++ b/src/mainboard/google/snow/Kconfig @@ -24,7 +24,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy select ARCH_ARMV7 select CPU_SAMSUNG_EXYNOS5 select HAVE_UART_MEMORY_MAPPED -# select EC_GOOGLE_CHROMEEC + select EC_GOOGLE_CHROMEEC + select EC_GOOGLE_CHROMEEC_I2C select BOARD_ROMSIZE_KB_4096 select DRIVER_MAXIM_MAX77686 # select HAVE_ACPI_TABLES @@ -106,6 +107,10 @@ config CONSOLE_SERIAL_UART_ADDRESS help Map the UART names to the respective MMIO address. +config EC_GOOGLE_CHROMEEC_I2C_BUS + hex + default 4 + ################################################################# # stuff from smdk5250.h # # FIXME: can we move some of these to exynos5250's Kconfig? # |