* [PATCH] sh: jump to p1 during boot on kfr2r09
@ 2009-08-20 13:59 Magnus Damm
0 siblings, 0 replies; only message in thread
From: Magnus Damm @ 2009-08-20 13:59 UTC (permalink / raw)
To: linux-sh
From: Magnus Damm <damm@igel.co.jp>
Add a P1 jump to the the kfr2r09 romimage code. With this
patch applied the initial zImage assembly code will run
with instruction cache enabled.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
---
arch/sh/include/mach-kfr2r09/mach/romimage.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
--- 0001/arch/sh/include/mach-kfr2r09/mach/romimage.h
+++ work/arch/sh/include/mach-kfr2r09/mach/romimage.h 2009-08-20 14:22:06.000000000 +0900
@@ -73,3 +73,16 @@
.endm
#include "partner-jet-setup.txt"
+
+ /* execute icbi after enabling cache */
+ mov.l 1f, r0
+ icbi @r0
+
+ /* jump to cached area */
+ mova 2f, r0
+ jmp @r0
+ nop
+
+ .align 2
+1: .long 0xa8000000
+2:
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2009-08-20 13:59 [PATCH] sh: jump to p1 during boot on kfr2r09 Magnus Damm
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