diff options
Diffstat (limited to 'src/mainboard/google/oak')
| -rw-r--r-- | src/mainboard/google/oak/mainboard.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/mainboard/google/oak/mainboard.c b/src/mainboard/google/oak/mainboard.c index c219678ae8..8dde2ef186 100644 --- a/src/mainboard/google/oak/mainboard.c +++ b/src/mainboard/google/oak/mainboard.c @@ -17,10 +17,59 @@ #include <arch/io.h> #include <boardid.h> #include <boot/coreboot_tables.h> +#include <delay.h> #include <device/device.h> +#include <gpio.h> +#include <soc/mt6391.h> +#include <soc/mtcmos.h> +#include <soc/pinmux.h> +#include <soc/pll.h> + +static void configure_audio(void) +{ + mtcmos_audio_power_on(); + + /* regulator for codecs */ + switch (board_id()) { + case 0: + /* vgp1 set to 1.22V */ + mt6391_configure_ldo(LDO_VCAMD, LDO_1P22); + /* vgp4 set to 1.8V */ + mt6391_configure_ldo(LDO_VGP4, LDO_1P8); + break; + default: + /* board from Rev1 */ + /* vgp1 set to 1.8V */ + mt6391_configure_ldo(LDO_VCAMD, LDO_1P8); + /* delay 1ms for realtek's power sequence request */ + mdelay(1); + /* vcama set to 1.8V */ + mt6391_configure_ldo(LDO_VCAMA, LDO_1P8); + break; + } + + /* reset ALC5676 */ + gpio_output(PAD_LCM_RST, 1); + + /* SoC I2S */ + gpio_set_mode(PAD_I2S0_LRCK, PAD_I2S0_LRCK_FUNC_I2S1_WS); + gpio_set_mode(PAD_I2S0_BCK, PAD_I2S0_BCK_FUNC_I2S1_BCK); + gpio_set_mode(PAD_I2S0_MCK, PAD_I2S0_MCK_FUNC_I2S1_MCK); + gpio_set_mode(PAD_I2S0_DATA0, PAD_I2S0_DATA0_FUNC_I2S1_DO_1); + gpio_set_mode(PAD_I2S0_DATA1, PAD_I2S0_DATA1_FUNC_I2S2_DI_2); + + /* codec ext MCLK ON */ + mt6391_gpio_output(MT6391_KP_COL4, 1); + mt6391_gpio_output(MT6391_KP_COL5, 1); + + /* set I2S clock to 48KHz */ + mt_pll_set_aud_div(48 * KHz); +} + static void mainboard_init(device_t dev) { + configure_audio(); } static void mainboard_enable(device_t dev) |