diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 5f904558e9db..7183fe4b5f72 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -635,20 +635,28 @@ static int ramoops_parse_dt(struct platform_device *pdev,
 	struct device_node *of_node = pdev->dev.of_node;
 	struct device_node *parent_node;
 	struct reserved_mem *rmem;
+	struct resource *res;
 	u32 value;
 	int ret;
 
 	dev_dbg(&pdev->dev, "using Device Tree\n");
 
-	rmem = of_reserved_mem_lookup(of_node);
-	if (!rmem) {
-		dev_err(&pdev->dev,
-			"failed to locate DT /reserved-memory resource\n");
-		return -EINVAL;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		rmem = of_reserved_mem_lookup(of_node);
+		if (rmem) {
+			pdata->mem_size = rmem->size;
+			pdata->mem_address = rmem->base;
+		} else {
+			dev_err(&pdev->dev,
+				"failed to locate DT /reserved-memory resource\n");
+			return -EINVAL;
+		}
+	} else {
+		pdata->mem_size = resource_size(res);
+		pdata->mem_address = res->start;
 	}
 
-	pdata->mem_size = rmem->size;
-	pdata->mem_address = rmem->base;
 	/*
 	 * Setting "unbuffered" is deprecated and will be ignored if
 	 * "mem_type" is also specified.