diff --git a/drivers/video/fb.c b/drivers/video/fb.c
index dbda8d4..3672c44 100644
--- a/drivers/video/fb.c
+++ b/drivers/video/fb.c
@@ -31,11 +31,40 @@
 	return 0;
 }
 
+static int fb_alloc_shadowfb(struct fb_info *info)
+{
+	if (info->screen_base_shadow && info->shadowfb)
+		return 0;
+
+	if (!info->screen_base_shadow && !info->shadowfb)
+		return 0;
+
+	if (info->shadowfb) {
+		info->screen_base_shadow = memalign(PAGE_SIZE,
+				info->line_length * info->yres);
+		if (!info->screen_base_shadow)
+			return -ENOMEM;
+		memcpy(info->screen_base_shadow, info->screen_base,
+				info->line_length * info->yres);
+	} else {
+		free(info->screen_base_shadow);
+		info->screen_base_shadow = NULL;
+	}
+
+	return 0;
+}
+
 int fb_enable(struct fb_info *info)
 {
+	int ret;
+
 	if (info->enabled)
 		return 0;
 
+	ret = fb_alloc_shadowfb(info);
+	if (ret)
+		return ret;
+
 	info->fbops->fb_enable(info);
 
 	info->enabled = true;
@@ -188,6 +217,22 @@
 	fb_print_modes(&info->edid_modes);
 }
 
+void *fb_get_screen_base(struct fb_info *info)
+{
+	return info->screen_base_shadow ?
+		info->screen_base_shadow : info->screen_base;
+}
+
+int fb_set_shadowfb(struct param_d *p, void *priv)
+{
+	struct fb_info *info = priv;
+
+	if (!info->enabled)
+		return 0;
+
+	return fb_alloc_shadowfb(info);
+}
+
 int register_framebuffer(struct fb_info *info)
 {
 	int id = get_free_deviceid("fb");
@@ -245,6 +290,8 @@
 	for (i = 0; i < info->edid_modes.num_modes; i++)
 		names[i + info->modes.num_modes] = info->edid_modes.modes[i].name;
 	dev_add_param_enum(dev, "mode_name", fb_set_modename, NULL, &info->current_mode, names, num_modes, info);
+	info->shadowfb = 1;
+	dev_add_param_bool(dev, "shadowfb", fb_set_shadowfb, NULL, &info->shadowfb, info);
 
 	info->mode = fb_num_to_mode(info, 0);
 
diff --git a/include/fb.h b/include/fb.h
index 311d5db..cf113c4 100644
--- a/include/fb.h
+++ b/include/fb.h
@@ -118,6 +118,7 @@
 	struct device_d dev;		/* This is this fb device */
 
 	void *screen_base;
+	void *screen_base_shadow;
 	unsigned long screen_size;
 
 	void *priv;
@@ -141,6 +142,7 @@
 	int register_simplefb;		/* If true a simplefb device node will
 					 * be created.
 					 */
+	int shadowfb;
 };
 
 struct display_timings *of_get_display_timings(struct device_node *np);
@@ -167,5 +169,6 @@
 void fb_of_reserve_add_fixup(struct fb_info *info);
 
 int register_fbconsole(struct fb_info *fb);
+void *fb_get_screen_base(struct fb_info *info);
 
 #endif /* __FB_H */