OMAP2xxx: move SRAM to fix boot hang

Commit 1c957036 breaks booting on
OMAP2; it causes the SRAM to be mapped on top of the L4 interconnect.
This causes the system to hang early in boot in omap_map_sram() during
the TLB flush. Fix by moving SRAM elsewhere in the memory map.

Reported by Jarkko Nikula <jarkko.nikula@nokia.com>.  This patch is a
collaboration with Tony Lindgren <tony@atomide.com> and
Kevin Hilman <khilman@deeprootsystems.com>.

Boot-tested on 2430SDP (by Paul) and N810 (by Jarkko).
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Måns Rullgård <mans@mansr.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/plat-omap/sram.c

@@ -37,8 +37,8 @@
 #define OMAP1_SRAM_VA		VMALLOC_END
 #define OMAP2_SRAM_PA		0x40200000
 #define OMAP2_SRAM_PUB_PA	0x4020f800
-#define OMAP2_SRAM_VA		VMALLOC_END
-#define OMAP2_SRAM_PUB_VA	(VMALLOC_END + 0x800)
+#define OMAP2_SRAM_VA		0xe3000000
+#define OMAP2_SRAM_PUB_VA	(OMAP2_SRAM_VA + 0x800)
 #define OMAP3_SRAM_PA           0x40200000
 #define OMAP3_SRAM_VA           0xd7000000
 #define OMAP3_SRAM_PUB_PA       0x40208000