From 22b42a87de7cbc680857e512bcd0651a47b9fbdb Mon Sep 17 00:00:00 2001 From: Kevin Chang Date: Fri, 20 Nov 2020 17:18:48 +0800 Subject: mb/google/volteer/variant/lindar: Correct SD card reader power sequence According to the spec provided by Bayhub, the 3.3V power rail must be enabled at least 100ms before reset is released. To ensure this, set the power enable signal in the bootblock GPIO table. BUG=b:173676531 BRANCH=firmware-volteer-13521.B TEST=Built and booted into OS, test USB function normally. Change-Id: I0c536f36c138ace93766f3024f6ec5d47b38269f Signed-off-by: Kevin Chang Reviewed-on: https://review.coreboot.org/c/coreboot/+/47799 Reviewed-by: Tim Wawrzynczak Reviewed-by: Angel Pons Tested-by: build bot (Jenkins) --- src/mainboard/google/volteer/variants/lindar/gpio.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/mainboard') diff --git a/src/mainboard/google/volteer/variants/lindar/gpio.c b/src/mainboard/google/volteer/variants/lindar/gpio.c index 4f3d5f769b..08f14010e7 100644 --- a/src/mainboard/google/volteer/variants/lindar/gpio.c +++ b/src/mainboard/google/volteer/variants/lindar/gpio.c @@ -134,6 +134,9 @@ static const struct pad_config early_gpio_table[] = { /* C21 : UART2_TXD ==> H1_PCH_INT_ODL */ PAD_CFG_GPI_APIC(GPP_C21, NONE, PLTRST, LEVEL, INVERT), + /* D16 : ISH_UART0_CTS# ==> EN_PP3300_SD */ + PAD_CFG_GPO(GPP_D16, 1, DEEP), + /* H11 : SRCCLKREQ5# ==> WLAN_PERST_L */ PAD_CFG_GPO(GPP_H11, 1, DEEP), }; -- cgit v1.2.3