mb/google/brya/var/taeko: add HPS as generic I2C peripheral
BUG=b:202784200
TEST=FW_NAME=taeko emerge-brya coreboot chromeos-bootimage
Signed-off-by: Dan Callaghan <dcallagh@google.com>
Change-Id: I400719d762b001811f809f9549fd030dff9928d0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/google/brya/variants/taeko/overridetree.cb b/src/mainboard/google/brya/variants/taeko/overridetree.cb
index 6806d8b..57c9cea 100644
--- a/src/mainboard/google/brya/variants/taeko/overridetree.cb
+++ b/src/mainboard/google/brya/variants/taeko/overridetree.cb
@@ -35,6 +35,10 @@
option BOOT_EMMC_DISABLED 0
option BOOT_EMMC_ENABLED 1
end
+ field HPS 17
+ option HPS_ABSENT 0
+ option HPS_PRESENT 1
+ end
end
chip soc/intel/alderlake
register "TcssAuxOri" = "1"
@@ -276,6 +280,21 @@
device i2c 10 on end
end
end
+ device ref i2c2 on
+ chip drivers/i2c/generic
+ register "hid" = ""GOOG0020""
+ register "desc" = ""Chrome OS HPS""
+ register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E7)" # EN_HPS_PWR
+ register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E3_IRQ)" # HPS_INT_ODL
+ # HPS uses I2C addresses 0x30 and 0x51.
+ # The address we provide here is not significant because
+ # neither coreboot nor Linux have a driver for HPS,
+ # it's only used from userspace.
+ device i2c 30 on
+ probe HPS HPS_PRESENT
+ end
+ end
+ end
device ref i2c5 on
chip drivers/i2c/generic
register "hid" = ""ELAN0000""