[XS] Change in coreboot[main]: mb/google/brox/var/lotso: GPP_B14 used for buzzer

[Jian Tong (Code Review)]

Jian Tong has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/83147?usp=email )

Change subject: mb/google/brox/var/lotso: GPP_B14 used for buzzer
......................................................................

mb/google/brox/var/lotso: GPP_B14 used for buzzer

ALC257 does not supoort built-in digtal buzzer, So use external pwm
to PCBEEP for beep sound.

BUG=b:346956771
BRANCH=None
TEST=emerge-brox coreboot sys-boot/chromeos-bootimage

firmware-shell: devbeep -> can output beep normally.

Change-Id: If924f9f27f229420e78015f418a97b2d5daf62e5
Signed-off-by: Jing Tong 
---
M src/mainboard/google/brox/variants/lotso/gpio.c
1 file changed, 3 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/47/83147/1

diff --git a/src/mainboard/google/brox/variants/lotso/gpio.c b/src/mainboard/google/brox/variants/lotso/gpio.c
index 230ecaf..c85363d 100644
--- a/src/mainboard/google/brox/variants/lotso/gpio.c
+++ b/src/mainboard/google/brox/variants/lotso/gpio.c
@@ -7,6 +7,9 @@

/* Pad configuration in ramstage */
 static const struct pad_config override_gpio_table[] = {
+	/* GPP_B14 : [NF1: SPKR NF2: TIME_SYNC1 NF4: SATA_LED# NF5: ISH_GP6
+	 * NF6: USB_C_GPP_B14] ==> ACZ_SPKR */
+	PAD_CFG_NF(GPP_B14, NONE, DEEP, NF1),
    /* GPP_D5 : SRCCLKREQ0_L ==> PCIE_REFCLK_SSD1_REQ_N */
    PAD_CFG_NF(GPP_D5, NONE, DEEP, NF1),
    /* GPP_D6 : [NF1: SRCCLKREQ1# NF6: USB_C_GPP_D6] ==> SOC_GPP_E10 (NC) */