[coreboot-gerrit] Patch set updated for coreboot: e165f17 armv7/pit: Setup EC on SPI2.
Gabe Black (gabeblack@chromium.org)
gerrit at coreboot.org
Wed Jul 10 04:00:46 CEST 2013
Gabe Black (gabeblack at chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3707
-gerrit
commit e165f17853c0b83011b401aafc11bba3a55f4088
Author: Hung-Te Lin <hungte at chromium.org>
Date: Mon Jun 24 20:02:01 2013 +0800
armv7/pit: Setup EC on SPI2.
The Embedded Controller (EC) for Pit is connected via SPI2, and needs to be
configured before we can talk to it.
Change-Id: I1f8e921b4616f15951f3e5fae1ecbf116de4ba90
Signed-off-by: Hung-Te Lin <hungte at chromium.org>
Signed-off-by: Gabe Black <gabeblack at chromium.org>
---
src/mainboard/google/pit/romstage.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/mainboard/google/pit/romstage.c b/src/mainboard/google/pit/romstage.c
index 41b64b2..7ba66a4 100644
--- a/src/mainboard/google/pit/romstage.c
+++ b/src/mainboard/google/pit/romstage.c
@@ -122,6 +122,14 @@ static void setup_storage(void)
exynos_pinmux_sdmmc2();
}
+static void setup_ec(void)
+{
+ /* SPI2 (EC) is slower and needs to work in half-duplex mode with
+ * single byte bus width. */
+ clock_set_rate(PERIPH_ID_SPI2, 500000);
+ exynos_pinmux_spi2();
+}
+
static void setup_graphics(void)
{
exynos_pinmux_dphpd();
@@ -271,6 +279,7 @@ void main(void)
setup_storage();
setup_gpio();
setup_graphics();
+ setup_ec();
simple_spi_test();
/* Set SPI (primary CBFS media) clock to 50MHz. */
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