From c195d33ac07a8d2d0e2889d73268dfe618bada64 Mon Sep 17 00:00:00 2001
From: Daniel DeGrasse <ddegrasse@tenstorrent.com>
Date: Mon, 3 Feb 2025 21:28:49 +0000
Subject: [PATCH] boot: zephyr: add ram_load overlays for nrf52840dk and
 mimxrt1050_evk boards

Add ram load overlays for nrf52840dk and mimxrt1050_evk boards. These
ram load overlays are moved from the Zephyr in tree smp_svr sample, to
enable ram load support for multiple platforms.

Signed-off-by: Daniel DeGrasse <ddegrasse@tenstorrent.com>
---
 ...evk_mimxrt1052_hyperflash_ram_load.overlay | 26 +++++++++++++++++++
 .../nrf52840dk_nrf52840_ram_load.overlay      | 26 +++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 boot/zephyr/boards/mimxrt1050_evk_mimxrt1052_hyperflash_ram_load.overlay
 create mode 100644 boot/zephyr/boards/nrf52840dk_nrf52840_ram_load.overlay

diff --git a/boot/zephyr/boards/mimxrt1050_evk_mimxrt1052_hyperflash_ram_load.overlay b/boot/zephyr/boards/mimxrt1050_evk_mimxrt1052_hyperflash_ram_load.overlay
new file mode 100644
index 000000000..ad2d3434d
--- /dev/null
+++ b/boot/zephyr/boards/mimxrt1050_evk_mimxrt1052_hyperflash_ram_load.overlay
@@ -0,0 +1,26 @@
+/ {
+	sram@80008000 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x80008000 DT_SIZE_K(2)>;
+		zephyr,memory-region = "RetainedMem";
+		status = "okay";
+
+		retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			boot_info0: boot_info@0 {
+				compatible = "zephyr,retention";
+				status = "okay";
+				reg = <0x0 0x100>;
+			};
+		};
+	};
+
+	chosen {
+		zephyr,bootloader-info = &boot_info0;
+		zephyr,code-partition = &boot_partition;
+	};
+};
diff --git a/boot/zephyr/boards/nrf52840dk_nrf52840_ram_load.overlay b/boot/zephyr/boards/nrf52840dk_nrf52840_ram_load.overlay
new file mode 100644
index 000000000..fd86e89d9
--- /dev/null
+++ b/boot/zephyr/boards/nrf52840dk_nrf52840_ram_load.overlay
@@ -0,0 +1,26 @@
+/ {
+	sram@2003FC00 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x2003FC00 DT_SIZE_K(1)>;
+		zephyr,memory-region = "RetainedMem";
+		status = "okay";
+
+		retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			boot_info0: boot_info@0 {
+				compatible = "zephyr,retention";
+				status = "okay";
+				reg = <0x0 0x100>;
+			};
+		};
+	};
+
+	chosen {
+		zephyr,bootloader-info = &boot_info0;
+		zephyr,code-partition = &boot_partition;
+	};
+};