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nyan: Initialize the i2c pins and controllers.

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Set up the i2c controllers that are used on nyan.

BUG=None
TEST=Built and booted into the bootblock on nyan.
BRANCH=None

Change-Id: Ibdd5685e3effdd13ca560b8f18db25e9edadc07b
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/172584
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
This commit is contained in:
Gabe Black 2013-10-10 03:46:14 -07:00 • committed by chrome-internal-fetch
commit 9c10a3074e
1 changed files with 34 additions and 0 deletions
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34
src/mainboard/google/nyan/bootblock.c
View file

@ -18,9 +18,43 @@
*/
#include <bootblock_common.h>
#include <console/console.h>
#include <device/i2c.h>
#include <soc/nvidia/tegra/i2c.h>
#include <soc/nvidia/tegra124/clock.h>
#include <soc/nvidia/tegra124/pinmux.h>
void bootblock_mainboard_init(void)
{
clock_config();
// I2C1 clock.
pinmux_set_config(PINMUX_GEN1_I2C_SCL_INDEX,
PINMUX_GEN1_I2C_SCL_FUNC_I2C1 | PINMUX_INPUT_ENABLE);
// I2C1 data.
pinmux_set_config(PINMUX_GEN1_I2C_SDA_INDEX,
PINMUX_GEN1_I2C_SDA_FUNC_I2C1 | PINMUX_INPUT_ENABLE);
// I2C2 clock.
pinmux_set_config(PINMUX_GEN2_I2C_SCL_INDEX,
PINMUX_GEN2_I2C_SCL_FUNC_I2C2 | PINMUX_INPUT_ENABLE);
// I2C2 data.
pinmux_set_config(PINMUX_GEN2_I2C_SDA_INDEX,
PINMUX_GEN2_I2C_SDA_FUNC_I2C2 | PINMUX_INPUT_ENABLE);
// I2C3 (cam) clock.
pinmux_set_config(PINMUX_CAM_I2C_SCL_INDEX,
PINMUX_CAM_I2C_SCL_FUNC_I2C3 | PINMUX_INPUT_ENABLE);
// I2C3 (cam) data.
pinmux_set_config(PINMUX_CAM_I2C_SDA_INDEX,
PINMUX_CAM_I2C_SDA_FUNC_I2C3 | PINMUX_INPUT_ENABLE);
// I2C5 (PMU) clock.
pinmux_set_config(PINMUX_PWR_I2C_SCL_INDEX,
PINMUX_PWR_I2C_SCL_FUNC_I2CPMU | PINMUX_INPUT_ENABLE);
// I2C5 (PMU) data.
pinmux_set_config(PINMUX_PWR_I2C_SDA_INDEX,
PINMUX_PWR_I2C_SDA_FUNC_I2CPMU | PINMUX_INPUT_ENABLE);
i2c_init(0);
i2c_init(1);
i2c_init(2);
i2c_init(4);
}