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-rw-r--r--src/mainboard/google/rush/romstage.c32
-rw-r--r--src/mainboard/google/rush_ryu/romstage.c4
2 files changed, 36 insertions, 0 deletions
diff --git a/src/mainboard/google/rush/romstage.c b/src/mainboard/google/rush/romstage.c
index bb173c09d6..7c01a30604 100644
--- a/src/mainboard/google/rush/romstage.c
+++ b/src/mainboard/google/rush/romstage.c
@@ -19,6 +19,38 @@
#include <soc/romstage.h>
+#include <soc/addressmap.h>
+#include <soc/clock.h>
+#include <soc/nvidia/tegra/i2c.h>
+#include <soc/nvidia/tegra132/pinmux.h>
+#include <soc/nvidia/tegra132/gpio.h>
+
+static struct clk_rst_ctlr *clk_rst = (void *)TEGRA_CLK_RST_BASE;
+
+static void configure_tpm_i2c_bus(void)
+{
+ clock_configure_i2c_scl_freq(i2c3, PLLP, 19);
+
+ i2c_init(2);
+}
+
+void mainboard_init_tpm_i2c(void)
+{
+ clock_enable_clear_reset(0, 0, CLK_U_I2C3, 0, 0, 0);
+
+ gpio_output(GPIO(I5), 1);
+
+ // 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);
+
+
+ configure_tpm_i2c_bus();
+}
+
void mainboard_configure_pmc(void)
{
}
diff --git a/src/mainboard/google/rush_ryu/romstage.c b/src/mainboard/google/rush_ryu/romstage.c
index bb173c09d6..9a41247dd8 100644
--- a/src/mainboard/google/rush_ryu/romstage.c
+++ b/src/mainboard/google/rush_ryu/romstage.c
@@ -19,6 +19,10 @@
#include <soc/romstage.h>
+void mainboard_init_tpm_i2c(void)
+{
+}
+
void mainboard_configure_pmc(void)
{
}