msm7627: Update to use ram partition table for apps memory map
Similar to 7x30, use ram partition table on 7x27 as well. However,
the ram partition table currently reports some extra memory as usable
by apps - so we adjust for this until that gets fixed.
Change-Id: I3e22c7304e4866e48db459cb6b285ba438c9eff3
diff --git a/target/msm7627_ffa/atags.c b/target/msm7627_ffa/atags.c
index 9029ad2..8c3ff6c 100644
--- a/target/msm7627_ffa/atags.c
+++ b/target/msm7627_ffa/atags.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
+/* Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -26,7 +26,42 @@
*
*/
+#include <reg.h>
+#include <debug.h>
+#include <smem.h>
+
+#define SIZE_1M 0x00100000
+
unsigned* target_atag_mem(unsigned* ptr)
{
- return ptr;
+ struct smem_ram_ptable ram_ptable;
+ unsigned i = 0;
+
+ if (smem_ram_ptable_init(&ram_ptable))
+ {
+ for (i = 0; i < ram_ptable.len; i++)
+ {
+ if ((ram_ptable.parts[i].attr == READWRITE)
+ && (ram_ptable.parts[i].domain == APPS_DOMAIN)
+ && (ram_ptable.parts[i].start != 0x0)
+ && (!(ram_ptable.parts[i].size < SIZE_1M)))
+ {
+ /* ATAG_MEM */
+ *ptr++ = 4;
+ *ptr++ = 0x54410002;
+ /* FIXME: RAM partition table currently reports 2M extra
+ Fix this by subracting 2M, until modem ram partition table
+ starts reporting the right values */
+ *ptr++ = ram_ptable.parts[i].size - (2*SIZE_1M);
+ *ptr++ = ram_ptable.parts[i].start;
+ }
+ }
+ }
+ else
+ {
+ dprintf(CRITICAL, "ERROR: Unable to read RAM partition\n");
+ ASSERT(0);
+ }
+ return ptr;
}
+