From fd7f51546e26828022dedcd877b8190d18f387bb Mon Sep 17 00:00:00 2001
From: Jon Murphy <jpmurphy@google.com>
Date: Thu, 6 Apr 2023 23:15:03 -0600
Subject: mb/google/myst: Enable tis_plat_irq_status

This will fix:
> [INFO ]  Probing TPM I2C: tis_plat_irq_status() not implemented,
wasting 20ms to wait on Cr50!

BUG=b:277297687
TEST=builds

Change-Id: I611a2855d94167748d0f82a478687fe2cdf5846a
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74286
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 src/mainboard/google/myst/variants/baseboard/Makefile.inc | 4 ++++
 src/mainboard/google/myst/variants/baseboard/tpm_tis.c    | 9 +++++++++
 2 files changed, 13 insertions(+)
 create mode 100644 src/mainboard/google/myst/variants/baseboard/tpm_tis.c

(limited to 'src')

diff --git a/src/mainboard/google/myst/variants/baseboard/Makefile.inc b/src/mainboard/google/myst/variants/baseboard/Makefile.inc
index 40a41dfeed..ffa462ab8f 100644
--- a/src/mainboard/google/myst/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/myst/variants/baseboard/Makefile.inc
@@ -1,7 +1,11 @@
 bootblock-y += gpio.c
 
 ramstage-y += gpio.c
+ramstage-y += tpm_tis.c
 
 romstage-y += gpio.c
+romstage-y += tpm_tis.c
+
+verstage-y += tpm_tis.c
 
 smm-y += smihandler.c
diff --git a/src/mainboard/google/myst/variants/baseboard/tpm_tis.c b/src/mainboard/google/myst/variants/baseboard/tpm_tis.c
new file mode 100644
index 0000000000..d03158db81
--- /dev/null
+++ b/src/mainboard/google/myst/variants/baseboard/tpm_tis.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <security/tpm/tis.h>
+#include <gpio.h>
+
+int tis_plat_irq_status(void)
+{
+	return gpio_interrupt_status(GPIO_84);
+}
-- 
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