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google/kukui: Support sound in boot process 

Configure and enable GPIO for speaker amp max98357a.

BUG=b:117254418
TEST=Build pass and verified on kukui p1 board
BRANCH=None

Change-Id: I97655702dff402245326d2eff71fae0e336df9f5
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32459
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Jiaxin Yu 2019-04-23 20:45:50 +08:00 committed by Patrick Georgi
parent 3c0d23b6ab
commit 30bc9f415d
3 changed files with 16 additions and 0 deletions
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2
src/mainboard/google/kukui/chromeos.c
View File

@ -27,6 +27,7 @@ void setup_chromeos_gpios(void)
gpio_input_pullup(EC_IRQ);
gpio_input_pullup(CR50_IRQ);
gpio_output(GPIO_RESET, 0);
gpio_output(GPIO_EN_SPK_AMP, 0);
}
void fill_lb_gpios(struct lb_gpios *gpios)
@ -38,6 +39,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
{EC_IN_RW.id, ACTIVE_HIGH, -1, "EC in RW"},
{EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"},
{CR50_IRQ.id, ACTIVE_HIGH, -1, "TPM interrupt"},
{GPIO_EN_SPK_AMP.id, ACTIVE_HIGH, -1, "speaker enable"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}

1
src/mainboard/google/kukui/gpio.h
View File

@ -23,6 +23,7 @@
#define EC_IN_RW GPIO(PERIPHERAL_EN14)
#define CR50_IRQ GPIO(PERIPHERAL_EN3)
#define GPIO_RESET GPIO(PERIPHERAL_EN8)
#define GPIO_EN_SPK_AMP GPIO(PERIPHERAL_EN12)
void setup_chromeos_gpios(void);

13
src/mainboard/google/kukui/mainboard.c
View File

@ -16,6 +16,7 @@
#include <device/device.h>
#include <soc/gpio.h>
#include <soc/mmu_operations.h>
#include <soc/mtcmos.h>
#include <soc/usb.h>
static void configure_emmc(void)
@ -37,10 +38,22 @@ static void configure_usb(void)
setup_usb_host();
}
static void configure_audio(void)
{
/* Audio PWR*/
mtcmos_audio_power_on();
/* SoC I2S */
gpio_set_mode(GPIO(CAM_RST0), PAD_CAM_RST0_FUNC_I2S2_LRCK);
gpio_set_mode(GPIO(CAM_PDN1), PAD_CAM_PDN1_FUNC_I2S2_BCK);
gpio_set_mode(GPIO(CAM_PDN0), PAD_CAM_PDN0_FUNC_I2S2_MCK);
gpio_set_mode(GPIO(EINT3), PAD_EINT3_FUNC_I2S3_DO);
}
static void mainboard_init(struct device *dev)
{
configure_emmc();
configure_usb();
configure_audio();
}
static void mainboard_enable(struct device *dev)