[PATCH v2 16/16] arm: dts: k3-j7200: Extend firewall for ATF region to TIFS

[Richard Genoud (TI)]

From: Prasanth Babu Mantena <p-mantena at ti.com>

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 <p-mantena at ti.com>
Co-developed-by: Richard Genoud (TI) <richard.genoud at bootlin.com>
Signed-off-by: Richard Genoud (TI) <richard.genoud at bootlin.com>
---
 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