mb/google/cherry: Support audio codec RT1011

Add GPIO "rt1011 reset" and i2c2 initialization for RT1011.
Add CHERRY_USE_RT1011 and CHERRY_USE_RT1019 to Kconfig, so we can
spearate code for the specific codec by config.

Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Change-Id: I18939a2a2caae0444ce17f4712764647975121ad
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57157
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/cherry/Kconfig

@@ -54,4 +54,13 @@ config BOOT_DEVICE_SPI_FLASH_BUS
 config EC_GOOGLE_CHROMEEC_SPI_BUS
 	hex
 	default 0x0
+
+config CHERRY_USE_RT1011
+	bool
+	default n
+
+config CHERRY_USE_RT1019
+	bool
+	default y if BOARD_GOOGLE_CHERRY || BOARD_GOOGLE_TOMATO
+	default n
 endif

src/mainboard/google/cherry/chromeos.c

@@ -12,12 +12,16 @@ void setup_chromeos_gpios(void)
 	gpio_input(GPIO_WP);
 	gpio_input_pullup(GPIO_EC_AP_INT);
 	gpio_input_pullup(GPIO_SD_CD);
-	gpio_output(GPIO_BEEP_ON, 0);
 	gpio_input_pullup(GPIO_EC_IN_RW);
 	gpio_input_pullup(GPIO_GSC_AP_INT);
 	gpio_output(GPIO_EN_SPK, 0);
 	gpio_output(GPIO_RESET, 0);
 	gpio_output(GPIO_XHCI_DONE, 0);
+	if (CONFIG(CHERRY_USE_RT1019))
+		gpio_output(GPIO_BEEP_ON, 0);
+	else if (CONFIG(CHERRY_USE_RT1011))
+		gpio_output(GPIO_RST_RT1011, 0);
+
 }
 
 void fill_lb_gpios(struct lb_gpios *gpios)
@@ -25,16 +29,30 @@ void fill_lb_gpios(struct lb_gpios *gpios)
 	struct lb_gpio chromeos_gpios[] = {
 		{GPIO_EC_AP_INT.id, ACTIVE_LOW, -1, "EC interrupt"},
 		{GPIO_SD_CD.id, ACTIVE_LOW, -1, "SD card detect"},
-		{GPIO_BEEP_ON.id, ACTIVE_HIGH, -1, "beep enable"},
 		{GPIO_EC_IN_RW.id, ACTIVE_LOW, -1, "EC in RW"},
 		/*
 		 * The GPIO_GSC_AP_INT itself is active low, but the payloads will
 		 * create the IRQ using its eint driver, which is active high.
 		 */
 		{GPIO_GSC_AP_INT.id, ACTIVE_HIGH, -1, "TPM interrupt"},
+	};
+
+	struct lb_gpio rt1019_gpios[] = {
+		{GPIO_BEEP_ON.id, ACTIVE_HIGH, -1, "beep enable"},
 		{GPIO_EN_SPK.id, ACTIVE_HIGH, -1, "speaker enable"},
 	};
+
+	struct lb_gpio rt1011_gpios[] = {
+		{GPIO_RST_RT1011.id, ACTIVE_HIGH, -1, "rt1011 reset"},
+		{GPIO_EN_SPK.id, ACTIVE_HIGH, -1, "speaker enable"},
+	};
+
 	lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
+
+	if (CONFIG(CHERRY_USE_RT1019))
+		lb_add_gpios(gpios, rt1019_gpios, ARRAY_SIZE(rt1019_gpios));
+	else if (CONFIG(CHERRY_USE_RT1011))
+		lb_add_gpios(gpios, rt1011_gpios, ARRAY_SIZE(rt1011_gpios));
 }
 
 int tis_plat_irq_status(void)

src/mainboard/google/cherry/gpio.h

@@ -12,6 +12,7 @@
 #define GPIO_XHCI_DONE  GPIO(DGI_D4)
 #define GPIO_EC_IN_RW	GPIO(DGI_D10)
 #define GPIO_GSC_AP_INT	GPIO(DGI_D11)
+#define GPIO_RST_RT1011	GPIO(DGI_VSYNC)
 #define GPIO_EN_SPK	GPIO(UART1_RTS)
 #define GPIO_RESET	GPIO(UART1_CTS)
 

src/mainboard/google/cherry/mainboard.c

@@ -203,6 +203,10 @@ static void mainboard_init(struct device *dev)
 	configure_sdcard();
 	setup_usb_host();
 
+	/* for audio usage */
+	if (CONFIG(CHERRY_USE_RT1011))
+		mtk_i2c_bus_init(I2C2);
+
 	if (dpm_init())
 		printk(BIOS_ERR, "dpm init failed, DVFS may not work\n");