From: Prasanth Babu Mantena <[email protected]> Extend the access to SRAM region of ATF to TIFS as well. This is needed for TIFS for encryption and decryption of ATF as a part of low power mode sequence. TIFS encrypts the ATF while entering into low power mode and decrypts it back while resuming back. So, giving permissions for TIFS to access this region.
Signed-off-by: Prasanth Babu Mantena <[email protected]> Co-developed-by: Richard Genoud (TI) <[email protected]> Signed-off-by: Richard Genoud (TI) <[email protected]> --- arch/arm/dts/k3-binman.dtsi | 7 ++++++- arch/arm/dts/k3-security.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/dts/k3-binman.dtsi b/arch/arm/dts/k3-binman.dtsi index 0fd93f9536a2..4ff668e905ed 100644 --- a/arch/arm/dts/k3-binman.dtsi +++ b/arch/arm/dts/k3-binman.dtsi @@ -475,7 +475,12 @@ FWCTRL_CACHE)>; permissions = <((FWPRIVID_ARMV8 << FWPRIVID_SHIFT) | FWPERM_SECURE_PRIV_RWCD | - FWPERM_SECURE_USER_RWCD)>; + FWPERM_SECURE_USER_RWCD)>, + <((FWPRIVID_TIFS << FWPRIVID_SHIFT) | + FWPERM_SECURE_PRIV_RWCD | + FWPERM_SECURE_USER_RWCD | + FWPERM_NON_SECURE_PRIV_RWCD | + FWPERM_NON_SECURE_USER_RWCD)>; start_address = <0x0 CONFIG_K3_ATF_LOAD_ADDR>; end_address = <0x0 (CONFIG_K3_ATF_LOAD_ADDR + 0x1ffff)>; }; diff --git a/arch/arm/dts/k3-security.h b/arch/arm/dts/k3-security.h index 33609caa8fb5..3e066bca6ad7 100644 --- a/arch/arm/dts/k3-security.h +++ b/arch/arm/dts/k3-security.h @@ -7,6 +7,7 @@ #define DTS_ARM64_TI_K3_FIREWALL_H #define FWPRIVID_ALL 0xc3 +#define FWPRIVID_TIFS 0xca #define FWPRIVID_ARMV8 1 #define FWPRIVID_SHIFT 16 -- 2.47.3
