system-vek280: add workaround device tree node

Add the workaround device tree node to reserve the bad block DDR memory.
so that we can boot linux on vek280 board.

Signed-off-by: Swagath Gadde <swagath.gadde@amd.com>
Signed-off-by: Mark Hatle <mark.hatle@amd.com>

2 files changed, 22 insertions, 0 deletions

diff --git a/meta-xilinx-bsp/recipes-bsp/device-tree/device-tree.bbappend b/meta-xilinx-bsp/recipes-bsp/device-tree/device-tree.bbappend
index fa4816af..7acda75e 100644
--- a/meta-xilinx-bsp/recipes-bsp/device-tree/device-tree.bbappend
+++ b/meta-xilinx-bsp/recipes-bsp/device-tree/device-tree.bbappend
@@ -5,3 +5,5 @@ COMPATIBLE_MACHINE:qemu-zynq7 = ".*"
 SRC_URI:append:qemu-zynq7 = " file://qemu-zynq7.dts"
 
 EXTRA_OVERLAYS:append = "${@bb.utils.contains('MACHINE_FEATURES', 'provencore', ' pnc.dtsi', '', d)}"
+
+EXTRA_OVERLAYS:append:vek280-versal = " system-vek280.dtsi"
diff --git a/meta-xilinx-bsp/recipes-bsp/device-tree/files/system-vek280.dtsi b/meta-xilinx-bsp/recipes-bsp/device-tree/files/system-vek280.dtsi
new file mode 100644
index 00000000..0d2ca87d
--- /dev/null
+++ b/meta-xilinx-bsp/recipes-bsp/device-tree/files/system-vek280.dtsi
@@ -0,0 +1,20 @@
+/ {
+/* Reserve the bad block DDR memory for linux to not touch it, refer:CR-1143646 */
+reserved-memory {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        ranges;
+        pl_ddr: buffer@0
+        {
+        no-map;
+        reg = <0x08 0x00 0x00 0x80000000>;
+        };
+
+        lpddr_memory: buffer@1
+        {
+        no-map;
+        reg = <0x500 0x0 0x2 0x0>;
+        };
+
+};
+};