OMAP2xxx: move SRAM to fix boot hang

Commit 1c957036bbd912322793da676d05e169abf24782 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>

diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 853048d12bac25c034de871102c9d42c9dfae7ce..027b101e203d2163415d1df6f17bdfe1a0c2eab1 100644 (file)
--- a/arch/arm/plat-omap/sram.c
+++ b/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