[PATCH 12/23] arm64: zynqmp: Add mtd partition for secure OS storage area

Michal Simek
2023-05-02T13:38:44Z

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

arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
index d3c6a9feb114..5fbc2fbd2638 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
@@ -83,7 +83,7 @@ &uart1 { /* MIO36/MIO37 */

&qspi { /* MIO 0-5 - U143 */
status = "okay";
- flash@0 { /* MT25QU512A */
+ spi_flash: flash@0 { /* MT25QU512A */
compatible = "mt25qu512a", "jedec,spi-nor"; /* 64MB */
#address-cells = <1>;
#size-cells = <1>;
@@ -161,13 +161,17 @@ partition@2220000 {
};
partition@2240000 {
label = "SHA256";
- reg = <0x2240000 0x10000>; /* 256B but 64KB sector */
+ reg = <0x2240000 0x40000>; /* 256B but 256KB sector */
read-only;
lock;
};
- partition@2250000 {
+ partition@2280000 {
+ label = "Secure OS Storage";
+ reg = <0x2280000 0x20000>; /* 128KB */
+ };
+ partition@22A0000 {
label = "User";
- reg = <0x2250000 0x1db0000>; /* 29.5 MB */
+ reg = <0x22A0000 0x1d60000>; /* 29.375 MB */
};
};
};
--
2.36.1