ARM: mach-shmobile: mackerel: Reserve DMA memory for the frame buffer
authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Thu, 1 Mar 2012 14:45:16 +0000 (15:45 +0100)
committerPaul Mundt <lethal@linux-sh.org>
Wed, 7 Mar 2012 08:04:29 +0000 (17:04 +0900)
The default 2MB size of DMA coherent memory isn't enough for allocate
frame buffer memory.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
arch/arm/mach-shmobile/board-mackerel.c

index a2813247b4558d540682c391c0ca07e5ffbc261b..7b53cda418513a63f69d34a90e903aa4d7b76f1c 100644 (file)
@@ -1352,6 +1352,10 @@ static struct map_desc mackerel_io_desc[] __initdata = {
 static void __init mackerel_map_io(void)
 {
        iotable_init(mackerel_io_desc, ARRAY_SIZE(mackerel_io_desc));
+       /* DMA memory at 0xff200000 - 0xffdfffff. The default 2MB size isn't
+        * enough to allocate the frame buffer memory.
+        */
+       init_consistent_dma_size(12 << 20);
 
        /* setup early devices and console here as well */
        sh7372_add_early_devices();