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nyan: Set CrOS EC frame header parameters for SPI

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This sets frame header information for CrOS EC so that the
SPI driver knows what to look for.

BUG=none
BRANCH=none
TEST=tested on nyan
Signed-off-by: David Hendricks <dhendrix@chromium.org>

Change-Id: I2af67292c2d448d06418b4f4f8bee7b103ab6e38
Reviewed-on: https://chromium-review.googlesource.com/174710
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Commit-Queue: David Hendricks <dhendrix@chromium.org>
Tested-by: David Hendricks <dhendrix@chromium.org>
This commit is contained in:
David Hendricks 2013-10-24 21:41:11 -07:00 • committed by chrome-internal-fetch
commit 29173ba586
1 changed files with 13 additions and 0 deletions
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13
src/mainboard/google/nyan/mainboard.c
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@ -26,6 +26,7 @@
#include <soc/nvidia/tegra124/clk_rst.h>
#include <soc/nvidia/tegra124/gpio.h>
#include <soc/nvidia/tegra124/pmc.h>
#include <soc/nvidia/tegra124/spi.h>
static struct clk_rst_ctlr *clk_rst = (void *)TEGRA_CLK_RST_BASE;
@ -180,6 +181,17 @@ static void setup_kernel_info(void)
writel(0x80080000, &pmc->odmdata);
}
static void setup_ec_spi(void)
{
struct tegra_spi_channel *spi;
spi = tegra_spi_init(CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS);
/* Set frame header for use by CrOS EC */
spi->frame_header = 0xec;
spi->rx_frame_header_enable = 1;
}
static void mainboard_init(device_t dev)
{
setup_pinmux();
@ -199,6 +211,7 @@ static void mainboard_init(device_t dev)
setup_kernel_info();
clock_init_arm_generic_timer();
setup_ec_spi();
}
static void mainboard_enable(device_t dev)