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mb/google/myst: Enable USB WWAN 

Add usb wwan device tree entry. Also set wwan_rst to high due to
HW design active high.

BUG=b:285792436
TEST=check FM101 is detected by Linux kernel.
Bus 002 Device 002: ID 2cb7:01a2 Fibocom Wireless Inc.

Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: I0aa60cb284d4b7f99e16643a92ee58467a355026
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75660
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Eric Lai 2023-06-06 15:30:09 +08:00 committed by Felix Held
parent 07ebe4ae02
commit e23c8038f8
2 changed files with 20 additions and 1 deletions
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19
src/mainboard/google/myst/variants/baseboard/devicetree.cb
View File

@ -293,6 +293,25 @@ chip soc/amd/phoenix
end
end
end
device ref xhci_1 on
chip drivers/usb/acpi
register "type" = "UPC_TYPE_HUB"
device ref xhci_1_root_hub on
chip drivers/usb/acpi
register "desc" = ""USB3 WWAN""
register "type" = "UPC_TYPE_INTERNAL"
register "has_power_resource" = "1"
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_6)"
register "enable_delay_ms" = "20"
register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_11)"
register "reset_off_delay_ms" = "20"
device ref usb3_port7 on
probe WWAN WWAN_FM101GL
end
end
end
end
end
device ref acp on end # Audio Processor (ACP)
device ref mp2 on end # Sensor Fusion Hub (MP2)
end

2
src/mainboard/google/myst/variants/baseboard/gpio.c
View File

@ -28,7 +28,7 @@ static const struct soc_amd_gpio base_gpio_table[] = {
/* EN_PP3300_WLAN */
PAD_GPO(GPIO_9, HIGH),
/* WWAN_RST */
PAD_GPO(GPIO_11, LOW),
PAD_GPO(GPIO_11, HIGH),
/* Unused */
PAD_NC(GPIO_12),
/* GPIO_13 - GPIO_15: Not available */