New patch to review for coreboot: f755ff5 armv7/pit: Setup EC on SPI2.

[Gabe Black]

Gabe Black ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3707

-gerrit

commit f755ff58db0ed3afc985678de09ba3911e655602
Author: Hung-Te Lin 
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 
    Signed-off-by: Gabe Black 
---
 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. */