From: Tim Harvey <tharvey@gateworks.com>
Date: Tue, 27 Jan 2026 01:17:26 +0000 (-0800)
Subject: kernel: modules: Add tpm-tis-spi
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92a94dc9b0df12111e4c81ff1a280e32deb5eba3;p=thirdparty%2Fopenwrt.git

kernel: modules: Add tpm-tis-spi

Add a module for tpm-tis-spi for TCG TIS 1.3 TPM security chips
connected to a regular non-tcg SPI master.

Add imx target compatibility for kmod-tpm.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Link: https://github.com/openwrt/openwrt/pull/21726
Signed-off-by: Robert Marko <robimarko@gmail.com>
---

diff --git a/package/kernel/linux/modules/other.mk b/package/kernel/linux/modules/other.mk
index c1daf935f19..1b9a2872538 100644
--- a/package/kernel/linux/modules/other.mk
+++ b/package/kernel/linux/modules/other.mk
@@ -990,7 +990,7 @@ $(eval $(call KernelPackage,tpm))
 define KernelPackage/tpm-tis
   SUBMENU:=$(OTHER_MENU)
   TITLE:=TPM TIS 1.2 Interface / TPM 2.0 FIFO Interface
-	DEPENDS:= @(TARGET_x86||TARGET_armsr) +kmod-tpm
+	DEPENDS:= @(TARGET_x86||TARGET_armsr||TARGET_imx) +kmod-tpm
   KCONFIG:= CONFIG_TCG_TIS
   FILES:= \
 	$(LINUX_DIR)/drivers/char/tpm/tpm_tis.ko \
@@ -1007,6 +1007,27 @@ endef
 
 $(eval $(call KernelPackage,tpm-tis))
 
+define KernelPackage/tpm-tis-spi
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=TPM TIS 1.3 Interface SPI Interface
+	DEPENDS:= +kmod-tpm-tis +kmod-spi-dev
+  KCONFIG:= CONFIG_TCG_TIS_SPI \
+	CONFIG_TCG_TIS_SPI_CR50=n
+  FILES:= \
+	$(LINUX_DIR)/drivers/char/tpm/tpm_tis_spi.ko
+  AUTOLOAD:=$(call AutoLoad,20,tpm_tis_spi,1)
+endef
+
+define KernelPackage/tpm-tis-spi/description
+	If you have a TPM security chip which is connected to a regular,
+	non-tcg SPI master that is compliant with the
+	TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
+	specification (TPM2.0) say Yes and it will be accessible from
+	within Linux.
+endef
+
+$(eval $(call KernelPackage,tpm-tis-spi))
+
 define KernelPackage/tpm-i2c-atmel
   SUBMENU:=$(OTHER_MENU)
   TITLE:=TPM I2C Atmel Support