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 <tongjian@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83147
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Wentao Qin <qinwentao@huaqin.corp-partner.google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
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) */