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authorSimon Glass <sjg@chromium.org>2015-07-06 12:54:31 -0600
committerSimon Glass <sjg@chromium.org>2015-07-21 17:39:32 -0600
commit64ce0cad9e04aab19eb4c3f61333b203548281a7 (patch)
tree34d947b79671ef3f7419d37dba7ea9c84093a66e /drivers/ram
parent201c29a2d6fe5d50bc731e51fd758b3ae1e028d6 (diff)
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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>
Diffstat (limited to 'drivers/ram')
-rw-r--r--drivers/ram/Makefile1
-rw-r--r--drivers/ram/sandbox_ram.c38
2 files changed, 39 insertions, 0 deletions
diff --git a/drivers/ram/Makefile b/drivers/ram/Makefile
index 4494d81..0e10249 100644
--- a/drivers/ram/Makefile
+++ b/drivers/ram/Makefile
@@ -5,3 +5,4 @@
# SPDX-License-Identifier: GPL-2.0+
#
obj-$(CONFIG_RAM) += ram-uclass.o
+obj-$(CONFIG_SANDBOX) += sandbox_ram.o
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,
+};