[coreboot-gerrit] Patch set updated for coreboot: google/reef: Enable I2C TPM
Duncan Laurie (dlaurie@chromium.org)
gerrit at coreboot.org
Sat Sep 3 00:53:58 CEST 2016
Duncan Laurie (dlaurie at chromium.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16398
-gerrit
commit 82befa2fde3ba744115fde2e6d25f6dbe9b62f94
Author: Duncan Laurie <dlaurie at chromium.org>
Date: Thu Sep 1 16:00:05 2016 -0700
google/reef: Enable I2C TPM
Enable the I2C based TPM on the reef board at
bus 2 and address 0x50.
This makes vboot functional without needing MOCK_TPM and
results in the following in the SSDT:
Device (TPMI)
{
Name (_HID, "GOOG0005") // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
Name (_DDN, "I2C TPM") // _DDN: DOS Device Name
Method (_STA, 0, NotSerialized) // _STA: Status
{
Return (0x0F)
}
Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
{
I2cSerialBus (0x0050, ControllerInitiated, 0x00061A80,
AddressingMode7Bit, "\\_SB.PCI0.I2C2",
0x00, ResourceConsumer)
Interrupt (ResourceConsumer, Edge, ActiveLow, Exclusive)
{
0x00000039
}
})
}
Change-Id: Ia9775caabeac3e6a3bd72de38f9611b4cea7cea4
Signed-off-by: Duncan Laurie <dlaurie at chromium.org>
---
src/mainboard/google/reef/Kconfig | 10 +++++++++-
src/mainboard/google/reef/devicetree.cb | 8 +++++++-
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/src/mainboard/google/reef/Kconfig b/src/mainboard/google/reef/Kconfig
index 0464e2d..08a5c6a 100644
--- a/src/mainboard/google/reef/Kconfig
+++ b/src/mainboard/google/reef/Kconfig
@@ -9,8 +9,16 @@ config BOARD_SPECIFIC_OPTIONS
select HAVE_ACPI_RESUME
select HAVE_ACPI_TABLES
select MAINBOARD_HAS_CHROMEOS
- select MAINBOARD_HAS_LPC_TPM
+ select MAINBOARD_HAS_TPM2
select SYSTEM_TYPE_LAPTOP
+ select TPM2
+ select I2C_TPM
+
+config DRIVER_TPM_I2C_BUS
+ hex "0x2"
+
+config DRIVER_TPM_I2C_ADDR
+ hex "0x50"
config CHROMEOS
select LID_SWITCH
diff --git a/src/mainboard/google/reef/devicetree.cb b/src/mainboard/google/reef/devicetree.cb
index 4d08fae..ac69406 100644
--- a/src/mainboard/google/reef/devicetree.cb
+++ b/src/mainboard/google/reef/devicetree.cb
@@ -99,7 +99,13 @@ chip soc/intel/apollolake
end
end
device pci 16.1 on end # - I2C 1
- device pci 16.2 on end # - I2C 2
+ device pci 16.2 on
+ chip drivers/i2c/tpm
+ register "hid" = ""GOOG0005""
+ register "irq" = "IRQ_EDGE_LOW(GPIO_28_IRQ)"
+ device i2c 50 on end
+ end
+ end # - I2C 2
device pci 16.3 on
chip drivers/i2c/generic
register "hid" = ""ELAN0001""
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