diff options
Diffstat (limited to 'src/mainboard/google/rush_ryu/romstage.c')
| -rw-r--r-- | src/mainboard/google/rush_ryu/romstage.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/mainboard/google/rush_ryu/romstage.c b/src/mainboard/google/rush_ryu/romstage.c index 9a41247dd8..1c08718543 100644 --- a/src/mainboard/google/rush_ryu/romstage.c +++ b/src/mainboard/google/rush_ryu/romstage.c @@ -17,10 +17,60 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#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> #include <soc/romstage.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); +} + +static void configure_ec_i2c_bus(void) +{ + clock_configure_i2c_scl_freq(i2c2, PLLP, 100); + i2c_init(1); +} + 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_init_ec_spi(void) +{ + /* Empty - Ryu uses I2C to communicate with the EC */ +} + +void mainboard_init_ec_i2c(void) +{ + clock_enable_clear_reset(0, CLK_H_I2C2, 0, 0, 0, 0); + + /* I2C2 (GEN2) clock */ + pinmux_set_config(PINMUX_GEN2_I2C_SCL_INDEX, + PINMUX_GEN2_I2C_SCL_FUNC_I2C2 | PINMUX_INPUT_ENABLE); + /* I2C2 (GEN2) data */ + pinmux_set_config(PINMUX_GEN2_I2C_SDA_INDEX, + PINMUX_GEN2_I2C_SDA_FUNC_I2C2 | PINMUX_INPUT_ENABLE); + + configure_ec_i2c_bus(); } void mainboard_configure_pmc(void) |