diff --git a/Documentation/fb/efifb.txt b/Documentation/fb/efifb.txt
index a59916c29b3312cd4946a1d9a8da2331819e7845..1a85c1bdaf38a9ae7fb8b6555afc30abae661a20 100644
--- a/Documentation/fb/efifb.txt
+++ b/Documentation/fb/efifb.txt
@@ -27,5 +27,11 @@ You have to add the following kernel parameters in your elilo.conf:
 	Macbook Pro 17", iMac 20" :
 		video=efifb:i20
 
+Accepted options:
+
+nowc	Don't map the framebuffer write combined. This can be used
+	to workaround side-effects and slowdowns on other CPU cores
+	when large amounts of console data are written.
+
 --
 Edgar Hucek <gimli@dark-green.com>
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index ff01bed7112f1566ca13b3e17330851bf02fec05..1e784adb89b17534ce31751b546ef20801b2427f 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -17,6 +17,7 @@
 #include <asm/efi.h>
 
 static bool request_mem_succeeded = false;
+static bool nowc = false;
 
 static struct fb_var_screeninfo efifb_defined = {
 	.activate		= FB_ACTIVATE_NOW,
@@ -99,6 +100,8 @@ static int efifb_setup(char *options)
 				screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0);
 			else if (!strncmp(this_opt, "width:", 6))
 				screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0);
+			else if (!strcmp(this_opt, "nowc"))
+				nowc = true;
 		}
 	}
 
@@ -255,7 +258,10 @@ static int efifb_probe(struct platform_device *dev)
 	info->apertures->ranges[0].base = efifb_fix.smem_start;
 	info->apertures->ranges[0].size = size_remap;
 
-	info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
+	if (nowc)
+		info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
+	else
+		info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
 	if (!info->screen_base) {
 		pr_err("efifb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n",
 			efifb_fix.smem_len, efifb_fix.smem_start);