[PATCH] fixup! ARM: mmu32: Use pages for early MMU setup

[Ahmad Fatoum]

ARM: mmu32: fix alignment when early remapping .text section

arch_remap_range has a BUG_ON unaligned memory region start. On AM335x
(Tested with Beaglebone Black), _stext for the second stage barebox.bin
is not page-aligned, so this broke the boot. Use PAGE_ALIGN_DOWN to fix
this.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 arch/arm/cpu/mmu_32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/cpu/mmu_32.c b/arch/arm/cpu/mmu_32.c
index dc4b0e414d57..852c5626dedd 100644
--- a/arch/arm/cpu/mmu_32.c
+++ b/arch/arm/cpu/mmu_32.c
@@ -583,7 +583,7 @@ void mmu_early_enable(unsigned long membase, unsigned long memsize)
 	/* maps main memory as cachable */
 	arch_remap_range((void *)membase, memsize - OPTEE_SIZE, MAP_CACHED);
 	arch_remap_range((void *)membase + memsize - OPTEE_SIZE, OPTEE_SIZE, MAP_UNCACHED);
-	arch_remap_range(_stext, PAGE_ALIGN(_etext - _stext), MAP_CACHED);
+	arch_remap_range((void *)PAGE_ALIGN_DOWN((uintptr_t)_stext), PAGE_ALIGN(_etext - _stext), MAP_CACHED);
 
 	__mmu_cache_on();
 }
-- 
2.39.2