dm: test: Add a test for the ram uclass
Add a test to confirm that we can probe this device and get information on
the available RAM.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/ram/sandbox_ram.c b/drivers/ram/sandbox_ram.c
new file mode 100644
index 0000000..06bf3ec
--- /dev/null
+++ b/drivers/ram/sandbox_ram.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <ram.h>
+#include <asm/test.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int sandbox_get_info(struct udevice *dev, struct ram_info *info)
+{
+ info->base = 0;
+ info->size = gd->ram_size;
+
+ return 0;
+}
+
+static const struct ram_ops sandbox_ram_ops = {
+ .get_info = sandbox_get_info,
+};
+
+static const struct udevice_id sandbox_ram_ids[] = {
+ { .compatible = "sandbox,ram" },
+ { }
+};
+
+U_BOOT_DRIVER(warm_ram_sandbox) = {
+ .name = "ram_sandbox",
+ .id = UCLASS_RAM,
+ .of_match = sandbox_ram_ids,
+ .ops = &sandbox_ram_ops,
+};