[PATCH] arm64: zynqmp: Add mtd partition for secure OS storage area

Michal Simek michal.simek at amd.com
Tue Aug 23 10:18:03 CEST 2022


From: Amit Kumar Mahapatra <amit.kumar-mahapatra at xilinx.com>

Update MTD partitions of Kria device trees to allocate 128KB of QSPI
memory for secure OS. Increased "SHA256" partition size & changed
starting address of "User" partition to accommodate the new partition
"Secure OS Storage"

Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at amd.com>
---

 arch/arm/dts/zynqmp-sm-k26-revA.dts | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm/dts/zynqmp-sm-k26-revA.dts b/arch/arm/dts/zynqmp-sm-k26-revA.dts
index ac349a9dcc5d..bae24aabdbd1 100644
--- a/arch/arm/dts/zynqmp-sm-k26-revA.dts
+++ b/arch/arm/dts/zynqmp-sm-k26-revA.dts
@@ -214,13 +214,17 @@
 			};
 			partition at 2240000 {
 				label = "SHA256";
-				reg = <0x2240000 0x10000>; /* 256B but 64KB sector */
+				reg = <0x2240000 0x40000>; /* 256B but 256KB sector */
 				read-only;
 				lock;
 			};
-			partition at 2250000 {
+			partition at 2280000 {
+				label = "Secure OS Storage";
+				reg = <0x2280000 0x20000>; /* 128KB */
+			};
+			partition at 22A0000 {
 				label = "User";
-				reg = <0x2250000 0x1db0000>; /* 29.5 MB */
+				reg = <0x22A0000 0x1db0000>; /* 29.5 MB */
 			};
 		};
 	};
-- 
2.36.1



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