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

@@ -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),

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>