mb/google/brask/var/bujia: Configure Serial IO UARTs Mode
This patch configures Serial IO UARTs mode as below.
UART0 and UART1 in PCI mode and keep UART2 disable as per hardware design.
BUG=b:338917836
BRANCH=firmware-brya-14505.B
TEST= USE="-project_all project_bujia" emerge-brask coreboot
Change-Id: I5617331aaf505b97e25a717b145fb70dc53f5a38
Signed-off-by: Shon Wang <shon.wang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83205
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Derek Huang <derekhuang@google.com>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
diff --git a/src/mainboard/google/brya/variants/bujia/overridetree.cb b/src/mainboard/google/brya/variants/bujia/overridetree.cb
index 252d82f..4255296 100644
--- a/src/mainboard/google/brya/variants/bujia/overridetree.cb
+++ b/src/mainboard/google/brya/variants/bujia/overridetree.cb
@@ -46,6 +46,12 @@
[PchSerialIoIndexGSPI1] = PchSerialIoDisabled,
}"
+ register "serial_io_uart_mode" = "{
+ [PchSerialIoIndexUART0] = PchSerialIoPci,
+ [PchSerialIoIndexUART1] = PchSerialIoPci,
+ [PchSerialIoIndexUART2] = PchSerialIoDisabled,
+ }"
+
register "ddi_ports_config" = "{
[DDI_PORT_A] = DDI_ENABLE_HPD,
[DDI_PORT_B] = DDI_ENABLE_HPD | DDI_ENABLE_DDC,