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mb/google/brya: Enable cr50 support 

Add Kconfig options and devicetree entries for cr50 TPM.

BUG=b:180017621
TEST=verify (via console) successful cr50 communications in
verstage and payload (depthcharge).

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I80e27d0377960fb81f9149efb6f062d06432d40d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50567
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
This commit is contained in:
Tim Wawrzynczak 2021-02-11 13:39:19 -07:00 committed by Patrick Georgi
parent 91a2cd4770
commit ad21d6bfca
2 changed files with 32 additions and 0 deletions
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14
src/mainboard/google/brya/Kconfig
View File

@ -13,6 +13,8 @@ config BOARD_GOOGLE_BASEBOARD_BRYA
select HAVE_SPD_IN_CBFS
select INTEL_LPSS_UART_FOR_CONSOLE
select MAINBOARD_HAS_CHROMEOS
select MAINBOARD_HAS_I2C_TPM_CR50
select MAINBOARD_HAS_TPM2
select SOC_INTEL_ALDERLAKE
if BOARD_GOOGLE_BASEBOARD_BRYA
@ -30,6 +32,18 @@ config DEVICETREE
string
default "variants/baseboard/devicetree.cb"
config DRIVER_TPM_I2C_BUS
hex
default 0x3
config DRIVER_TPM_I2C_ADDR
hex
default 0x50
config TPM_TIS_ACPI_INTERRUPT
int
default 13 # GPE0_DW0_13 (GPP_A13_IRQ)
config OVERRIDE_DEVICETREE
string
default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"

18
src/mainboard/google/brya/variants/baseboard/devicetree.cb
View File

@ -3,6 +3,16 @@ chip soc/intel/alderlake
device lapic 0 on end
end
# This disabled autonomous GPIO power management, otherwise
# old cr50 FW only supports short pulses; need to clarify
# the minimum PCH IRQ pulse width with Intel, b/180111628
register "gpio_override_pm" = "1"
register "gpio_pm[COMM_0]" = "0"
register "gpio_pm[COMM_1]" = "0"
register "gpio_pm[COMM_2]" = "0"
register "gpio_pm[COMM_4]" = "0"
register "gpio_pm[COMM_5]" = "0"
register "usb2_ports[0]" = "USB2_PORT_TYPE_C(OC0)" # USB2_C0
register "usb2_ports[1]" = "USB2_PORT_TYPE_C(OC1)" # USB2_C1
register "usb2_ports[2]" = "USB2_PORT_TYPE_C(OC2)" # USB2_C2
@ -90,6 +100,14 @@ chip soc/intel/alderlake
device generic 0 on end
end
end
device ref i2c3 on
chip drivers/i2c/generic
register "hid" = "ACPI_DT_NAMESPACE_HID"
register "compat_string" = ""google,cr50""
register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_A13_IRQ)"
device i2c 50 on end
end
end
device ref heci1 on end
device ref sata on end
device ref pcie_rp5 on