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From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Wed, 17 Apr 2013 11:52:22 +0200
Subject: [PATCH] HACK! make printhex and printch work on efm32 with XIP
On XIP the kernel image is readonly, so is the hexbuf array. Use some
SRAM instead.
---
arch/arm/kernel/debug.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index 14f7c3b..e18cb30 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -56,6 +56,7 @@ ENDPROC(printhex4)
ENTRY(printhex2)
mov r1, #2
printhex: adr r2, hexbuf
+ ldr r2, =0x2001f000
add r3, r2, r1
mov r1, #0
strb r1, [r3]
@@ -121,6 +122,7 @@ ENDPROC(printascii)
ENTRY(printch)
adr r1, hexbuf
+ ldr r1, =0x2001f000
strb r0, [r1]
mov r0, #0x03 @ SYS_WRITEC
ARM( svc #0x123456 )
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