arm: k3: Kconfig: Enable fTPM and RPMB support

Enable firmware TPM (fTPM) support via OP-TEE for K3 platforms with
MMC hardware. This provides TPM 2.0 functionality through
Microsoft's fTPM Trusted Application running in OP-TEE secure world,
using eMMC RPMB as persistent storage.

fTPM support in U-Boot provides the foundation for measured boot
and disk encryption use cases.

The ARM64 condition ensures these apply only to A53/A72 cores and the
MMC condition ensures fTPM is enabled only on platforms with eMMC
hardware support.

Signed-off-by: Shiva Tripathi <s-tripathi1@ti.com>
Acked-by: Andrew Davis <afd@ti.com>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0012808663b3f441f5b2742463b0ad5515ea4950..03416c55265c32d5c1ec59088efc0a7298d1deb6 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -834,6 +834,9 @@ config ARCH_K3
        imply DM_RNG if ARM64
        imply TEE if ARM64
        imply OPTEE if ARM64
+       imply TPM if ARM64 && MMC
+       imply TPM2_FTPM_TEE if ARM64 && MMC
+       imply SUPPORT_EMMC_RPMB if ARM64 && MMC
 
 config ARCH_OMAP2PLUS
        bool "TI OMAP2+"

diff --git a/board/ti/common/Kconfig b/board/ti/common/Kconfig
index 409454813f35da900fc9f5bd1e930724a761fc70..149909093b38ce6ad21dd362ae653fbe2a5f612d 100644 (file)
--- a/board/ti/common/Kconfig
+++ b/board/ti/common/Kconfig
@@ -61,4 +61,6 @@ config TI_COMMON_CMD_OPTIONS
        imply CMD_SPL
        imply CMD_TIME
        imply CMD_USB if USB
+       imply CMD_TPM if TPM
+       imply CMD_OPTEE_RPMB if OPTEE && SUPPORT_EMMC_RPMB