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authorShelley Chen <shchen@google.com>2023-11-13 10:02:28 -0800
committerShelley Chen <shchen@google.com>2023-11-29 06:54:24 +0000
commitea9248e9fb38e107dc4397ba7d30616aa4c9077b (patch)
tree9b13e44d4bd1bcf4fec81a353700f8e488594e6c
parent2d589cfc6ca27656f621af634b04e49ed472872f (diff)
mb/google/brox: Fix configuration for TPM
On Brox, TPM is using i2c4 and GPP_E2, so modifying the Kconfig to reflect this. Also, fixing up the TPM entry in the device tree. Making sure that the GPIO for GSC_PCH_INT_ODL is set correctly. BUG=b:300690448 BRANCH=None TEST=emerge-brox coreboot Change-Id: I0ecaa6fcfc05c3c2e55f857d7a4e59fe46096bb5 Signed-off-by: Shelley Chen <shchen@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/79102 Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <ericllai@google.com> Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
-rw-r--r--src/mainboard/google/brox/Kconfig4
-rw-r--r--src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb30
2 files changed, 16 insertions, 18 deletions
diff --git a/src/mainboard/google/brox/Kconfig b/src/mainboard/google/brox/Kconfig
index 08a0656e6e..f6f33b6773 100644
--- a/src/mainboard/google/brox/Kconfig
+++ b/src/mainboard/google/brox/Kconfig
@@ -76,7 +76,7 @@ config DEVICETREE
config DRIVER_TPM_I2C_BUS
hex
- default 0x1 if BOARD_GOOGLE_BROX
+ default 0x4 if BOARD_GOOGLE_BROX
config DRIVER_TPM_I2C_ADDR
hex
@@ -87,7 +87,7 @@ config FMDFILE
config TPM_TIS_ACPI_INTERRUPT
int
- default 13
+ default 66 # GPE0_DW2_02 (GPP_E2)
config OVERRIDE_DEVICETREE
default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
diff --git a/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb b/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb
index 2b73ad2b1d..c8b4c5aeaa 100644
--- a/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb
+++ b/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb
@@ -76,14 +76,12 @@ chip soc/intel/alderlake
#+-------------------+---------------------------+
#| Field | Value |
#+-------------------+---------------------------+
- #| GSPI1 | Fingerprint MCU |
- #| I2C0 | Audio and WFC |
- #| I2C1 | cr50 TPM. Early init is |
+ #| I2C0 | Trackpad |
+ #| I2C1 | Touchscreen |
+ #| I2C2 | ISH Sensor |
+ #| I2C4 | cr50 TPM. Early init is |
#| | required to set up a BAR |
#| | for TPM communication |
- #| I2C2 | SAR0 |
- #| I2C3 | Touchscreen |
- #| I2C5 | Trackpad |
#+-------------------+---------------------------+
register "common_soc_config" = "{
.i2c[0] = {
@@ -94,24 +92,18 @@ chip soc/intel/alderlake
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 650,
+ .rise_time_ns = 600,
.fall_time_ns = 400,
.data_hold_time_ns = 50,
},
.i2c[2] = {
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 900,
- .fall_time_ns = 400,
- .data_hold_time_ns = 50,
- },
- .i2c[3] = {
- .early_init = 1,
- .speed = I2C_SPEED_FAST,
.rise_time_ns = 600,
.fall_time_ns = 400,
.data_hold_time_ns = 50,
},
- .i2c[5] = {
+ .i2c[4] = {
+ .early_init = 1,
.speed = I2C_SPEED_FAST,
.rise_time_ns = 650,
.fall_time_ns = 400,
@@ -167,7 +159,13 @@ chip soc/intel/alderlake
device generic 0 on end
end
end
- device ref i2c3 on end
+ device ref i2c4 on
+ chip drivers/i2c/tpm
+ register "hid" = ""GOOG0005""
+ register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_E2_IRQ)"
+ device i2c 50 on end
+ end
+ end
device ref heci1 on end
device ref sata on end
device ref pcie_rp8 on