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-rw-r--r--src/security/tpm/tis.h2
-rw-r--r--src/security/tpm/tss/vendor/cr50/Kconfig10
2 files changed, 12 insertions, 0 deletions
diff --git a/src/security/tpm/tis.h b/src/security/tpm/tis.h
index 660ec81231..8868e1a0fe 100644
--- a/src/security/tpm/tis.h
+++ b/src/security/tpm/tis.h
@@ -76,6 +76,8 @@ int tis_close(void);
int tis_sendrecv(const u8 *sendbuf, size_t send_size, u8 *recvbuf,
size_t *recv_len);
+/* TODO: This is supposed to be used only for Google TPM.
+ Consider moving this to drivers/tpm/cr50.h. */
/*
* tis_plat_irq_status()
*
diff --git a/src/security/tpm/tss/vendor/cr50/Kconfig b/src/security/tpm/tss/vendor/cr50/Kconfig
index 1fad3c0686..547f0fde3e 100644
--- a/src/security/tpm/tss/vendor/cr50/Kconfig
+++ b/src/security/tpm/tss/vendor/cr50/Kconfig
@@ -40,4 +40,14 @@ config TI50_FIRMWARE_VERSION_NOT_SUPPORTED
FW < 0.0.15. The config will be removed once all Ti50 stocks are updated to
0.0.15 or higher.
+config GOOGLE_TPM_IRQ_TIMEOUT_MS
+ int
+ default 100 if TPM_GOOGLE_CR50 && I2C_TPM
+ default 10 if TPM_GOOGLE_CR50
+ default 750
+ help
+ Timeout in milliseconds for waiting for TPM IRQ. Default to 100ms/10ms on platforms
+ using Cr50 in order to support legacy pre-ready-IRQ cr50 factory images. Default to
+ 750ms otherwise.
+
endif