Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/52694 )
Change subject: mb/google/brya: Adjust WWAN power sequence ......................................................................
mb/google/brya: Adjust WWAN power sequence
Follow L850GL spec to adjust power sequence. RST need to drive low before power on then drive to high.
SPEC:FIBOCOM_L850-GL Hardware User Manual_V1.0.8
BUG=b:186374631 TEST=WWAN is detected by lsusb.
Signed-off-by: Eric Lai ericr_lai@compal.corp-partner.google.com Change-Id: I13357677bb1ab185abf1d4c915a762a9d6894312 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52694 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Tim Wawrzynczak twawrzynczak@chromium.org --- M src/mainboard/google/brya/variants/baseboard/gpio.c 1 file changed, 2 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Tim Wawrzynczak: Looks good to me, approved
diff --git a/src/mainboard/google/brya/variants/baseboard/gpio.c b/src/mainboard/google/brya/variants/baseboard/gpio.c index 5811b58..b7783c0 100644 --- a/src/mainboard/google/brya/variants/baseboard/gpio.c +++ b/src/mainboard/google/brya/variants/baseboard/gpio.c @@ -388,6 +388,8 @@ PAD_CFG_GPO(GPP_E0, 0, DEEP), /* E13 : THC0_SPI1_IO2 ==> MEM_CH_SEL */ PAD_CFG_GPI(GPP_E13, NONE, DEEP), + /* E16 : RSVD_TP ==> WWAN_RST_L */ + PAD_CFG_GPO(GPP_E16, 0, DEEP), /* E15 : RSVD_TP ==> PCH_WP_OD */ PAD_CFG_GPI_GPIO_DRIVER(GPP_E15, NONE, DEEP), /* H10 : UART0_RXD ==> UART_PCH_RX_DBG_TX */