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authorVadim Bendebury <vbendeb@chromium.org>2016-05-22 16:25:29 -0700
committerMartin Roth <martinroth@google.com>2016-06-08 23:22:54 +0200
commit8f8cf4d3369ef9d4391dc96215832aad1f5fda67 (patch)
treed8df50d1c51cd8002ccacf208af5ea3360bf1dbd /src
parent9ed93cb5d50f94f9c43db2eb29764cd6302b4bb0 (diff)
downloadcoreboot-8f8cf4d3369ef9d4391dc96215832aad1f5fda67.tar.xz
gru: kevin: enable EC SPI interface
This configures and enables SPI interface #5 used for EC communications on Gru/Kevin. BRANCH=none BUG=chrome-os-partner:51537 TEST=with the appropriate depthcharge change it is possible to trigger booting Chrome OS from the SD card by pressing '^U' on Gru keyboard at the right time. Change-Id: I5304bf47e030c0b9b7794752f30ffdca6c03a4f4 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: b5cc177 Original-Change-Id: I99883daa60562ccddfaeb858c1957d497f05a501 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/346632 Reviewed-on: https://review.coreboot.org/15032 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/gru/Kconfig2
-rw-r--r--src/mainboard/google/gru/bootblock.c7
2 files changed, 6 insertions, 3 deletions
diff --git a/src/mainboard/google/gru/Kconfig b/src/mainboard/google/gru/Kconfig
index 48ae698b6b..39cbf081ec 100644
--- a/src/mainboard/google/gru/Kconfig
+++ b/src/mainboard/google/gru/Kconfig
@@ -56,7 +56,7 @@ config DRAM_SIZE_MB
config EC_GOOGLE_CHROMEEC_SPI_BUS
hex
- default 0
+ default 5
config BOOT_MEDIA_SPI_BUS
int
diff --git a/src/mainboard/google/gru/bootblock.c b/src/mainboard/google/gru/bootblock.c
index a048188e0a..19e2cdebbb 100644
--- a/src/mainboard/google/gru/bootblock.c
+++ b/src/mainboard/google/gru/bootblock.c
@@ -59,11 +59,14 @@ void bootblock_mainboard_early_init(void)
void bootblock_mainboard_init(void)
{
- /* select the pinmux for spi flashrom */
+ /* Set pinmux and configure spi flashrom. */
write32(&rk3399_pmugrf->spi1_rxd, IOMUX_SPI1_RX);
write32(&rk3399_pmugrf->spi1_csclktx, IOMUX_SPI1_CSCLKTX);
-
rockchip_spi_init(CONFIG_BOOT_MEDIA_SPI_BUS, 24750*KHz);
+ /* Set pinmux and configure EC flashrom. */
+ write32(&rk3399_grf->iomux_spi5, IOMUX_SPI5);
+ rockchip_spi_init(CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS, 3093750);
+
setup_chromeos_gpios();
}