From 59778fb6c402d48b1efa154e0e79d5e94726365e Mon Sep 17 00:00:00 2001
From: Rabin Vincent <rabin.vincent@stericsson.com>
Date: Fri, 12 Feb 2010 06:23:07 +0100
Subject: [PATCH] ARM: 5932/1: ux500: fix DEBUG_LL/earlyprintk
Add a static mapping for the UART and correct its virtual address in
debug-macro.S, to make DEBUG_LL/earlyprintk work.
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
arch/arm/mach-ux500/cpu-u8500.c | 1 +
arch/arm/mach-ux500/include/mach/debug-macro.S | 9 +++++----
2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-ux500/cpu-u8500.c b/arch/arm/mach-ux500/cpu-u8500.c
index 5f05e5850f71..397bc1f9ed94 100644
--- a/arch/arm/mach-ux500/cpu-u8500.c
+++ b/arch/arm/mach-ux500/cpu-u8500.c
@@ -33,6 +33,7 @@ static struct platform_device *platform_devs[] __initdata = {
/* minimum static i/o mapping required to boot U8500 platforms */
static struct map_desc u8500_io_desc[] __initdata = {
+ __IO_DEV_DESC(U8500_UART2_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GIC_CPU_BASE, SZ_4K),
__IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K),
__IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K),
diff --git a/arch/arm/mach-ux500/include/mach/debug-macro.S b/arch/arm/mach-ux500/include/mach/debug-macro.S
index 8f21b6a95dce..8de225e02235 100644
--- a/arch/arm/mach-ux500/include/mach/debug-macro.S
+++ b/arch/arm/mach-ux500/include/mach/debug-macro.S
@@ -8,12 +8,13 @@
* published by the Free Software Foundation.
*
*/
+#include <mach/hardware.h>
+
.macro addruart,rx
mrc p15, 0, \rx, c1, c0
- tst \rx, #1 @MMU enabled?
- moveq \rx, #0x80000000 @MMU off, Physical address
- movne \rx, #0xF0000000 @MMU on, Virtual address
- orr \rx, \rx, #0x7000
+ tst \rx, #1 @ MMU enabled?
+ ldreq \rx, =U8500_UART2_BASE @ no, physical address
+ ldrne \rx, =IO_ADDRESS(U8500_UART2_BASE) @ yes, virtual address
.endm
#include <asm/hardware/debug-pl01x.S>