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authorGeert Uytterhoeven <geert@linux-m68k.org>2014-07-08 09:17:16 +0200
committerGeert Uytterhoeven <geert@linux-m68k.org>2014-07-10 09:58:26 +0200
commitf1a1b63529986d0c8970da182f0935eae059421b (patch)
tree00a39ade70757ff41413c2d9a24d4545dc5fe3f1 /arch/m68k
parentcd3de83f147601356395b57a8673e9c5ff1e59d1 (diff)
downloadlinux-f1a1b63529986d0c8970da182f0935eae059421b.tar.gz
m68k: Fix boot regression on machines with RAM at non-zero
My enhancement to store the initial mapping size for later reuse in commit 486df8bc4627bdfc032d11bedcd056cc5343ee62 ("m68k: Increase initial mapping to 8 or 16 MiB if possible") broke booting on machines where RAM doesn't start at address zero. Use pc-relative addressing to fix this. Reported-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Andreas Schwab <schwab@linux-m68k.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/kernel/head.S3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S
index dbb118e1a4e..a54788458ca 100644
--- a/arch/m68k/kernel/head.S
+++ b/arch/m68k/kernel/head.S
@@ -921,7 +921,8 @@ L(nocon):
jls 1f
lsrl #1,%d1
1:
- movel %d1,m68k_init_mapped_size
+ lea %pc@(m68k_init_mapped_size),%a0
+ movel %d1,%a0@
mmu_map #PAGE_OFFSET,%pc@(L(phys_kernel_start)),%d1,\
%pc@(m68k_supervisor_cachemode)