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-rw-r--r--src/mainboard/google/gru/mainboard.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mainboard/google/gru/mainboard.c b/src/mainboard/google/gru/mainboard.c
index 54443bc9ff..bbe0224693 100644
--- a/src/mainboard/google/gru/mainboard.c
+++ b/src/mainboard/google/gru/mainboard.c
@@ -92,6 +92,23 @@ static void configure_sdmmc(void)
write32(&rk3399_grf->iomux_sdmmc, IOMUX_SDMMC);
}
+static void configure_codec(void)
+{
+ write32(&rk3399_grf->iomux_i2s0, IOMUX_I2S0);
+ write32(&rk3399_grf->iomux_i2sclk, IOMUX_I2SCLK);
+
+ /* AUDIO IO domain 1.8V voltage selection */
+ write32(&rk3399_grf->io_vsel, RK_SETBITS(1 << 1));
+
+ /* CPU1_P1.8V_AUDIO_PWREN for P1.8_AUDIO */
+ gpio_output(GPIO(0, A, 2), 1);
+
+ /* set CPU1_SPK_PA_EN output */
+ gpio_output(GPIO(1, A, 2), 0);
+
+ rkclk_configure_i2s(12288000);
+}
+
static void configure_display(void)
{
/* set pinmux for edp HPD*/
@@ -105,6 +122,7 @@ static void mainboard_init(device_t dev)
{
configure_sdmmc();
configure_emmc();
+ configure_codec();
configure_display();
}