mb/google/cherry: support max98390 audio amp
The Cherry follower projects may choose Max98390 for audio output
so we have to add a new config CHERRY_USE_MAX98390. Also, the
'dojo' device is the first one to use it.
BUG=b:204391159
BRANCH=cherry
TEST=emerge-cherry coreboot
TEST=Verify beep function through CLI in depthcharge successfully
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Change-Id: I9b6bc5a5520292dd502b0389217f5062479b4490
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63083
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/cherry/mainboard.c b/src/mainboard/google/cherry/mainboard.c
index 92d8ee1..3fb599b 100644
--- a/src/mainboard/google/cherry/mainboard.c
+++ b/src/mainboard/google/cherry/mainboard.c
@@ -92,6 +92,27 @@
return true;
}
+static void configure_i2s(void)
+{
+ /* Audio PWR */
+ mtcmos_audio_power_on();
+ mtcmos_protect_audio_bus();
+
+ /* SoC I2S */
+ gpio_set_mode(GPIO(GPIO_02), PAD_GPIO_02_FUNC_TDMIN_LRCK);
+ gpio_set_mode(GPIO(GPIO_03), PAD_GPIO_03_FUNC_TDMIN_BCK);
+ gpio_set_mode(GPIO(I2SO2_D0), PAD_I2SO2_D0_FUNC_I2SO2_D0);
+}
+
+static void configure_audio(void)
+{
+ if (CONFIG(CHERRY_USE_RT1011) || CONFIG(CHERRY_USE_MAX98390))
+ mtk_i2c_bus_init(I2C2, I2C_SPEED_FAST);
+
+ if (CONFIG(CHERRY_USE_MAX98390))
+ configure_i2s();
+}
+
static void mainboard_init(struct device *dev)
{
if (display_init_required())
@@ -103,9 +124,7 @@
mtk_msdc_configure_sdcard();
setup_usb_host();
- /* for audio usage */
- if (CONFIG(CHERRY_USE_RT1011))
- mtk_i2c_bus_init(I2C2, I2C_SPEED_FAST);
+ configure_audio();
if (dpm_init())
printk(BIOS_ERR, "dpm init failed, DVFS may not work\n");