diff options
| author | Reka Norman <rekanorman@google.com> | 2022-02-07 20:22:08 +1100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-02-11 14:11:53 +0000 |
| commit | b0947172c889623a26d849e7d732990f122f9805 (patch) | |
| tree | dd359567b63fa8c21afc6863cd103885415ee6e1 /src/mainboard/google/brya/variants/nivviks/overridetree.cb | |
| parent | 19567d8ec26b1ac5edd395195e0640d301466be8 (diff) | |
mb/google/brya/var/nivviks: Implement WWAN power sequencing
Nissa is using the FM101, which has the following power sequencing
requirements:
Power on: assert WWAN_EN, delay 20 ms, deassert WWAN_RST_L
Power off: assert WWAN_RST_L, delay 20 ms, deassert WWAN_EN
Add a power resource to the USB device, and use wwan_power.asl to
handle the power off sequence.
BUG=b:217092522
TEST=abuild -a -x -c max -p none -t google/brya -b nivviks
Signed-off-by: Reka Norman <rekanorman@google.com>
Change-Id: Ibe1b863a550c6af1ac3eb98f2aaa3db15b149ada
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61694
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Diffstat (limited to 'src/mainboard/google/brya/variants/nivviks/overridetree.cb')
| -rw-r--r-- | src/mainboard/google/brya/variants/nivviks/overridetree.cb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/nivviks/overridetree.cb b/src/mainboard/google/brya/variants/nivviks/overridetree.cb index 627accf45b..194b26fa3e 100644 --- a/src/mainboard/google/brya/variants/nivviks/overridetree.cb +++ b/src/mainboard/google/brya/variants/nivviks/overridetree.cb @@ -281,6 +281,11 @@ chip soc/intel/alderlake chip drivers/usb/acpi register "desc" = ""USB2 WWAN"" register "type" = "UPC_TYPE_INTERNAL" + register "has_power_resource" = "1" + register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F12)" + register "reset_off_delay_ms" = "20" + register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)" + register "enable_delay_ms" = "20" device ref usb2_port4 on probe DB_USB DB_1C_LTE end |