From 9f6f623f66d022d56da5dc527d86064f01dc26e6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20G=C5=82=C4=85b?= <sebastian.glab@nordicsemi.no>
Date: Thu, 12 Dec 2024 12:56:23 +0100
Subject: [PATCH] [nrf fromtree] tests: drivers: retained_mem: Run test on
 nrf54l20pdk
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Add overlays to execute retained_mem test on nrf54l20pdk.

Signed-off-by: Sebastian Głąb <sebastian.glab@nordicsemi.no>
(cherry picked from commit eaf999288965ea1e3d8acb18501033e9028f4336)
---
 .../boards/nrf54l20pdk_nrf54l20_cpuapp.conf   |  1 +
 .../nrf54l20pdk_nrf54l20_cpuapp.overlay       | 25 +++++++++++++++++++
 tests/drivers/retained_mem/api/testcase.yaml  |  1 +
 3 files changed, 27 insertions(+)
 create mode 100644 tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.conf
 create mode 100644 tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.overlay

diff --git a/tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.conf b/tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.conf
new file mode 100644
index 00000000000..c15ba3ed96d
--- /dev/null
+++ b/tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.conf
@@ -0,0 +1 @@
+CONFIG_POWEROFF=y
diff --git a/tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.overlay b/tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.overlay
new file mode 100644
index 00000000000..dc81069eca5
--- /dev/null
+++ b/tests/drivers/retained_mem/api/boards/nrf54l20pdk_nrf54l20_cpuapp.overlay
@@ -0,0 +1,25 @@
+/ {
+	cpuapp_sram@2007ec00 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x2007ec00 DT_SIZE_K(4)>;
+		zephyr,memory-region = "RetainedMem";
+		status = "okay";
+
+		retainedmem0: retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+		};
+	};
+
+	aliases {
+		retainedmemtestdevice = &retainedmem0;
+	};
+};
+
+&cpuapp_sram {
+	/* Shrink SRAM size to avoid overlap with retained memory region:
+	 * 511 - 4 = 507KB = 0x7ec00
+	 */
+	reg = <0x20000000 DT_SIZE_K(507)>;
+	ranges = <0x0 0x20000000 0x7ec00>;
+};
diff --git a/tests/drivers/retained_mem/api/testcase.yaml b/tests/drivers/retained_mem/api/testcase.yaml
index 1f2e228ee01..ba7633bb86e 100644
--- a/tests/drivers/retained_mem/api/testcase.yaml
+++ b/tests/drivers/retained_mem/api/testcase.yaml
@@ -12,6 +12,7 @@ tests:
       - nrf54l15dk/nrf54l05/cpuapp
       - nrf54l15dk/nrf54l10/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54l20pdk/nrf54l20/cpuapp
     tags:
       - drivers
       - retained_mem