ARM: OMAP: Fix SRAM to use MT_MEMORY instead of MT_DEVICE

MT_MEMORY is needed in order to execute code in SRAM. Also
need to use section mapping.

Based on a patch by Richard Woodruff.

Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index b7bf09b1b412c4b6e34a095b163713ba14bd4720..aebd06faf2cfd4c6c59c622b538e04696aa058d2 100644 (file)
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -158,14 +158,12 @@ static struct map_desc omap_sram_io_desc[] __initdata = {
        {       /* .length gets filled in at runtime */
                .virtual        = OMAP1_SRAM_VA,
                .pfn            = __phys_to_pfn(OMAP1_SRAM_PA),
-               .type           = MT_DEVICE
+               .type           = MT_MEMORY
        }
 };
 
 /*
- * In order to use last 2kB of SRAM on 1611b, we must round the size
- * up to multiple of PAGE_SIZE. We cannot use ioremap for SRAM, as
- * clock init needs SRAM early.
+ * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early.
  */
 void __init omap_map_sram(void)
 {
@@ -185,8 +183,7 @@ void __init omap_map_sram(void)
                omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
        }
 
-       omap_sram_io_desc[0].length = (omap_sram_size + PAGE_SIZE-1)/PAGE_SIZE;
-       omap_sram_io_desc[0].length *= PAGE_SIZE;
+       omap_sram_io_desc[0].length = 1024 * 1024;      /* Use section desc */
        iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
 
        printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",