ARM: increase lmb stack space reservation to 4KB

The bootm initrd image copy to ram can collide with the stack in cases where the print buffer size is large (i.e. 1K). The result is intermittent initrd decompression errors depending on the initrd size MOD 4KB since the initrd start address is 4KB aligned. Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Signed-off-by: Rob Herring <rob.herring@calxeda.com>

ARM: increase lmb stack space reservation to 4KB
The bootm initrd image copy to ram can collide with the stack in cases where the print buffer size is large (i.e. 1K). The result is intermittent initrd decompression errors depending on the initrd size MOD 4KB since the initrd start address is 4KB aligned. Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Rob Herring · Albert ARIBAUD
1 parent 995b72ddda
Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff
arch/arm/lib/bootm.c
@@ -69,8 +69,8 @@
 	sp = get_sp();
 	debug("## Current stack ends at 0x%08lx ", sp);
  
-	/* adjust sp by 1K to be safe */
-	sp -= 1024;
+	/* adjust sp by 4K to be safe */
+	sp -= 4096;
 	lmb_reserve(lmb, sp,
 		    gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp);
 }
...	...	@@ -69,8 +69,8 @@
69	69	sp = get_sp();
70	70	debug("## Current stack ends at 0x%08lx ", sp);
71	71
72		- /* adjust sp by 1K to be safe */
73		- sp -= 1024;
	72	+ /* adjust sp by 4K to be safe */
	73	+ sp -= 4096;
74	74	lmb_reserve(lmb, sp,
75	75	gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp);
76	76	}