ARM: dts: rainier, everest: Add TPM reset GPIO

The GPIO is used to place the BMC-connected TPM in reset. This state is
latched until the BMC is next reset, blocking access to the TPM for that
boot.

On both machines this net is called TPM_RESET_LATCH_B.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20210727033319.473152-2-joel@jms.id.au

diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
index 44b03a5..4c1b864 100644 (file)
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
@@ -253,7 +253,7 @@
        /*O0-O7*/       "","","","","","","","",
        /*P0-P7*/       "","","","","led-pcieslot-power","","","",
        /*Q0-Q7*/       "","","","","","","","",
-       /*R0-R7*/       "","","","","","I2C_FLASH_MICRO_N","","",
+       /*R0-R7*/       "bmc-tpm-reset","","","","","I2C_FLASH_MICRO_N","","",
        /*S0-S7*/       "","","","","","","","",
        /*T0-T7*/       "","","","","","","","",
        /*U0-U7*/       "","","","","","","","",

diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
index 481d0ee..06b3d15 100644 (file)
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
@@ -271,7 +271,7 @@
        /*O0-O7*/       "","","","usb-power","","","","",
        /*P0-P7*/       "","","","","pcieslot-power","","","",
        /*Q0-Q7*/       "cfam-reset","","","","","","","",
-       /*R0-R7*/       "","","","","","","","",
+       /*R0-R7*/       "bmc-tpm-reset","","","","","","","",
        /*S0-S7*/       "presence-ps0","presence-ps1","presence-ps2","presence-ps3",
                                "","","","",
        /*T0-T7*/       "","","","","","","","",