Merge branch 'debug-ll' into omap-for-linus

arch/arm/boot/compressed/head.S

@@ -22,13 +22,13 @@
 #if defined(CONFIG_DEBUG_ICEDCC)
 
 #ifdef CONFIG_CPU_V6
-		.macro	loadsp, rb
+		.macro	loadsp, rb, tmp
 		.endm
 		.macro	writeb, ch, rb
 		mcr	p14, 0, \ch, c0, c5, 0
 		.endm
 #elif defined(CONFIG_CPU_V7)
-		.macro	loadsp, rb
+		.macro	loadsp, rb, tmp
 		.endm
 		.macro	writeb, ch, rb
 wait:		mrc	p14, 0, pc, c0, c1, 0
@@ -36,13 +36,13 @@ wait:		mrc	p14, 0, pc, c0, c1, 0
 		mcr	p14, 0, \ch, c0, c5, 0
 		.endm
 #elif defined(CONFIG_CPU_XSCALE)
-		.macro	loadsp, rb
+		.macro	loadsp, rb, tmp
 		.endm
 		.macro	writeb, ch, rb
 		mcr	p14, 0, \ch, c8, c0, 0
 		.endm
 #else
-		.macro	loadsp, rb
+		.macro	loadsp, rb, tmp
 		.endm
 		.macro	writeb, ch, rb
 		mcr	p14, 0, \ch, c1, c0, 0
@@ -58,7 +58,7 @@ wait:		mrc	p14, 0, pc, c0, c1, 0
 		.endm
 
 #if defined(CONFIG_ARCH_SA1100)
-		.macro	loadsp, rb
+		.macro	loadsp, rb, tmp
 		mov	\rb, #0x80000000	@ physical base address
 #ifdef CONFIG_DEBUG_LL_SER3
 		add	\rb, \rb, #0x00050000	@ Ser3
@@ -67,13 +67,13 @@ wait:		mrc	p14, 0, pc, c0, c1, 0
 #endif
 		.endm
 #elif defined(CONFIG_ARCH_S3C2410)
-		.macro loadsp, rb
+		.macro loadsp, rb, tmp
 		mov	\rb, #0x50000000
 		add	\rb, \rb, #0x4000 * CONFIG_S3C_LOWLEVEL_UART_PORT
 		.endm
 #else
-		.macro	loadsp,	rb
-		addruart \rb
+		.macro	loadsp,	rb, tmp
+		addruart \rb, \tmp
 		.endm
 #endif
 #endif
@@ -1025,7 +1025,7 @@ phex:		adr	r3, phexbuf
 		strb	r2, [r3, r1]
 		b	1b
 
-puts:		loadsp	r3
+puts:		loadsp	r3, r1
 1:		ldrb	r2, [r0], #1
 		teq	r2, #0
 		moveq	pc, lr
@@ -1042,7 +1042,7 @@ puts:		loadsp	r3
 putc:
 		mov	r2, r0
 		mov	r0, #0
-		loadsp	r3
+		loadsp	r3, r1
 		b	2b
 
 memdump:	mov	r12, r0

arch/arm/kernel/debug.S

@@ -24,7 +24,7 @@
 
 #if defined(CONFIG_CPU_V6)
 
-		.macro	addruart, rx
+		.macro	addruart, rx, tmp
 		.endm
 
 		.macro	senduart, rd, rx
@@ -51,7 +51,7 @@
 
 #elif defined(CONFIG_CPU_V7)
 
-		.macro	addruart, rx
+		.macro	addruart, rx, tmp
 		.endm
 
 		.macro	senduart, rd, rx
@@ -71,7 +71,7 @@ wait:		mrc	p14, 0, pc, c0, c1, 0
 
 #elif defined(CONFIG_CPU_XSCALE)
 
-		.macro	addruart, rx
+		.macro	addruart, rx, tmp
 		.endm
 
 		.macro	senduart, rd, rx
@@ -98,7 +98,7 @@ wait:		mrc	p14, 0, pc, c0, c1, 0
 
 #else
 
-		.macro	addruart, rx
+		.macro	addruart, rx, tmp
 		.endm
 
 		.macro	senduart, rd, rx
@@ -164,7 +164,7 @@ ENDPROC(printhex2)
 		.ltorg
 
 ENTRY(printascii)
-		addruart r3
+		addruart r3, r1
 		b	2f
 1:		waituart r2, r3
 		senduart r1, r3
@@ -180,7 +180,7 @@ ENTRY(printascii)
 ENDPROC(printascii)
 
 ENTRY(printch)
-		addruart r3
+		addruart r3, r1
 		mov	r1, r0
 		mov	r0, #0
 		b	1b

arch/arm/mach-aaec2000/include/mach/debug-macro.S

@@ -10,7 +10,7 @@
  */
 
 #include "hardware.h"
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x80000000		@ physical

arch/arm/mach-at91/include/mach/debug-macro.S

@@ -14,7 +14,7 @@
 #include <mach/hardware.h>
 #include <mach/at91_dbgu.h>
 
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1						@ MMU enabled?
 	ldreq	\rx, =(AT91_BASE_SYS + AT91_DBGU)		@ System peripherals (phys address)

arch/arm/mach-clps711x/include/mach/debug-macro.S

@@ -13,7 +13,7 @@
 
 #include <asm/hardware/clps7111.h>
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #CLPS7111_PHYS_BASE

arch/arm/mach-davinci/include/mach/debug-macro.S

@@ -19,7 +19,7 @@
 #include <linux/serial_reg.h>
 #define UART_SHIFT	2
 
-		.macro addruart, rx
+		.macro addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x01000000	@ physical base address

arch/arm/mach-dove/include/mach/debug-macro.S

@@ -8,7 +8,7 @@
 
 #include <mach/bridge-regs.h>
 
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1					@ MMU enabled?
 	ldreq	\rx, =DOVE_SB_REGS_PHYS_BASE

arch/arm/mach-ebsa110/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  *
 **/
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mov	\rx, #0xf0000000
 		orr	\rx, \rx, #0x00000be0
 		.endm

arch/arm/mach-ep93xx/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  */
 #include <mach/ep93xx-regs.h>
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1				@ MMU enabled?
 		ldreq	\rx, =EP93XX_APB_PHYS_BASE	@ Physical base

arch/arm/mach-footbridge/include/mach/debug-macro.S

@@ -15,7 +15,7 @@
 
 #ifndef CONFIG_DEBUG_DC21285_PORT
 	/* For NetWinder debugging */
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x7c000000	@ physical
@@ -32,7 +32,7 @@
 		.equ	dc21285_high, ARMCSR_BASE & 0xff000000
 		.equ	dc21285_low,  ARMCSR_BASE & 0x00ffffff
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x42000000

arch/arm/mach-gemini/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  */
 #include <mach/hardware.h>
 
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1					@ MMU enabled?
 	ldreq	\rx, =GEMINI_UART_BASE			@ physical

arch/arm/mach-h720x/include/mach/debug-macro.S

@@ -14,7 +14,7 @@
 		.equ    io_virt, IO_BASE
 		.equ    io_phys, IO_START
 
-		.macro  addruart,rx
+		.macro  addruart, rx, tmp
 		mrc     p15, 0, \rx, c1, c0
 		tst     \rx, #1  	       @ MMU enabled?
 		moveq   \rx, #io_phys	       @ physical base address

arch/arm/mach-integrator/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  *
 */
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x16000000	@ physical base address

arch/arm/mach-iop13xx/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  * published by the Free Software Foundation.
  */
 
-	.macro	addruart, rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1			@ mmu enabled?
 	moveq	\rx, #0xff000000	@ physical

arch/arm/mach-iop32x/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  * published by the Free Software Foundation.
  */
 
-		.macro	addruart, rx
+		.macro	addruart, rx, tmp
 		mov	\rx, #0xfe000000	@ physical as well as virtual
 		orr	\rx, \rx, #0x00800000	@ location of the UART
 		.endm

arch/arm/mach-iop33x/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  * published by the Free Software Foundation.
  */
 
-		.macro	addruart, rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ mmu enabled?
 		moveq	\rx, #0xff000000	@ physical

arch/arm/mach-ixp2000/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  *
 */
 
-		.macro  addruart,rx
+		.macro  addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0xc0000000	@ Physical base

arch/arm/mach-ixp23xx/include/mach/debug-macro.S

@@ -12,7 +12,7 @@
  */
 #include <mach/ixp23xx.h>
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1				@ mmu enabled?
 		ldreq	\rx, =IXP23XX_PERIPHERAL_PHYS 	@ physical

arch/arm/mach-ixp4xx/include/mach/debug-macro.S

@@ -10,7 +10,7 @@
  * published by the Free Software Foundation.
 */
 
-                .macro  addruart,rx
+                .macro  addruart, rx, tmp
                 mrc     p15, 0, \rx, c1, c0
                 tst     \rx, #1                 @ MMU enabled?
                 moveq   \rx, #0xc8000000

arch/arm/mach-kirkwood/include/mach/debug-macro.S

@@ -8,7 +8,7 @@
 
 #include <mach/bridge-regs.h>
 
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1					@ MMU enabled?
 	ldreq	\rx, =KIRKWOOD_REGS_PHYS_BASE

arch/arm/mach-ks8695/include/mach/debug-macro.S

@@ -14,7 +14,7 @@
 #include <mach/hardware.h>
 #include <mach/regs-uart.h>
 
-	.macro	addruart, rx
+	.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1				@ MMU enabled?
 		ldreq	\rx, =KS8695_UART_PA		@ physical base address

arch/arm/mach-l7200/include/mach/debug-macro.S

@@ -14,7 +14,7 @@
 		.equ	io_virt, IO_BASE
 		.equ	io_phys, IO_START
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #io_phys		@ physical base address

arch/arm/mach-lh7a40x/include/mach/debug-macro.S

@@ -14,7 +14,7 @@
 	@ It is not known if this will be appropriate for every 40x
 	@ board.
 
-		.macro  addruart,rx
+		.macro  addruart, rx, tmp
 		mrc     p15, 0, \rx, c1, c0
 		tst     \rx, #1                 @ MMU enabled?
 		mov     \rx, #0x00000700        @ offset from base

arch/arm/mach-loki/include/mach/debug-macro.S

@@ -8,7 +8,7 @@
 
 #include <mach/loki.h>
 
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1					@ MMU enabled?
 	ldreq	\rx, =LOKI_REGS_PHYS_BASE

arch/arm/mach-mmp/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
 
 #include <mach/addr-map.h>
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1				@ MMU enabled?
 		ldreq	\rx, =APB_PHYS_BASE		@ physical

arch/arm/mach-msm/include/mach/debug-macro.S

@@ -20,7 +20,7 @@
 #include <mach/msm_iomap.h>
 
 #ifdef CONFIG_MSM_DEBUG_UART
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	@ see if the MMU is enabled and select appropriate base address
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1
@@ -40,7 +40,7 @@
 	beq	1001b
 	.endm
 #else
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	.endm
 
 	.macro	senduart,rd,rx

arch/arm/mach-mv78xx0/include/mach/debug-macro.S

@@ -8,7 +8,7 @@
 
 #include <mach/mv78xx0.h>
 
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1					@ MMU enabled?
 	ldreq	\rx, =MV78XX0_REGS_PHYS_BASE

arch/arm/mach-netx/include/mach/debug-macro.S

@@ -13,7 +13,7 @@
 
 #include "hardware.h"
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x00100000		@ physical

arch/arm/mach-nomadik/include/mach/debug-macro.S

@@ -10,7 +10,7 @@
  *
 */
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x10000000	@ physical base address

arch/arm/mach-ns9xxx/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
 
 #include <mach/regs-board-a9m9750dev.h>
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1
 		ldreq	\rx, =NS9XXX_CSxSTAT_PHYS(0)

arch/arm/mach-omap1/include/mach/debug-macro.S

@@ -11,18 +11,80 @@
  *
 */
 
-		.macro	addruart,rx
+#include <linux/serial_reg.h>
+
+#include <plat/serial.h>
+
+		.pushsection .data
+omap_uart_phys:	.word	0x0
+omap_uart_virt:	.word	0x0
+		.popsection
+
+		/*
+		 * Note that this code won't work if the bootloader passes
+		 * a wrong machine ID number in r1. To debug, just hardcode
+		 * the desired UART phys and virt addresses temporarily into
+		 * the omap_uart_phys and omap_uart_virt above.
+		 */
+		.macro	addruart, rx, tmp
+
+		/* Use omap_uart_phys/virt if already configured */
+9:		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		ldreq	\rx, =omap_uart_phys	@ physical base address
+		ldrne	\rx, =omap_uart_virt	@ virtual base
+		ldr	\rx, [\rx, #0]
+		cmp	\rx, #0			@ is port configured?
+		bne	99f			@ already configured
+
+		/* Check 7XX UART1 scratchpad register for uart to use */
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		moveq	\rx, #0xff000000	@ physical base address
+		movne	\rx, #0xfe000000	@ virtual base
+		orr	\rx, \rx, #0x00fb0000	@ OMAP1UART1
+		ldrb	\rx, [\rx, #(UART_SCR << OMAP7XX_PORT_SHIFT)]
+		cmp	\rx, #0			@ anything in 7XX scratchpad?
+		bne	10f			@ found 7XX uart
+
+		/* Check 15xx/16xx UART1 scratchpad register for uart to use */
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0xff000000	@ physical base address
 		movne	\rx, #0xfe000000	@ virtual base
-		orr	\rx, \rx, #0x00fb0000
-#ifdef CONFIG_OMAP_LL_DEBUG_UART3
-		orr	\rx, \rx, #0x00009000	@ UART 3
-#endif
-#if defined(CONFIG_OMAP_LL_DEBUG_UART2) || defined(CONFIG_OMAP_LL_DEBUG_UART3)
-		orr	\rx, \rx, #0x00000800	@ UART 2 & 3
-#endif
+		orr	\rx, \rx, #0x00fb0000	@ OMAP1UART1
+		ldrb	\rx, [\rx, #(UART_SCR << OMAP_PORT_SHIFT)]
+
+		/* Select the UART to use based on the UART1 scratchpad value */
+10:		cmp	\rx, #0			@ no port configured?
+		beq	11f			@ if none, try to use UART1
+		cmp	\rx, #OMAP1UART1
+		beq	11f			@ configure OMAP1UART1
+		cmp	\rx, #OMAP1UART2
+		beq	12f			@ configure OMAP1UART2
+		cmp	\rx, #OMAP1UART3
+		beq	13f			@ configure OMAP2UART3
+
+		/* Configure the UART offset from the phys/virt base */
+11:		mov	\rx, #0x00fb0000	@ OMAP1UART1
+		b	98f
+12:		mov	\rx, #0x00fb0000	@ OMAP1UART1
+		orr	\rx, \rx, #0x00000800	@ OMAP1UART2
+		b	98f
+13:		mov	\rx, #0x00fb0000	@ OMAP1UART1
+		orr	\rx, \rx, #0x00000800	@ OMAP1UART2
+		orr	\rx, \rx, #0x00009000	@ OMAP1UART3
+
+		/* Store both phys and virt address for the uart */
+98:		add	\rx, \rx, #0xff000000	@ phys base
+		ldr	\tmp, =omap_uart_phys
+		str	\rx, [\tmp, #0]
+		sub	\rx, \rx, #0xff000000	@ phys base
+		add	\rx, \rx, #0xfe000000	@ virt base
+		ldr	\tmp, =omap_uart_virt
+		str	\rx, [\tmp, #0]
+		b	9b
+99:
 		.endm
 
 		.macro	senduart,rd,rx
@@ -30,13 +92,13 @@
 		.endm
 
 		.macro	busyuart,rd,rx
-1001:		ldrb	\rd, [\rx, #(0x5 << 2)]	@ OMAP-1510 and friends
-		and	\rd, \rd, #0x60
-		teq	\rd, #0x60
+1001:		ldrb	\rd, [\rx, #(UART_LSR << OMAP_PORT_SHIFT)]
+		and	\rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE)
+		teq	\rd, #(UART_LSR_TEMT | UART_LSR_THRE)
 		beq	1002f
-		ldrb	\rd, [\rx, #(0x5 << 0)]	@ OMAP-730 only
-		and	\rd, \rd, #0x60
-		teq	\rd, #0x60
+		ldrb	\rd, [\rx, #(UART_LSR << OMAP7XX_PORT_SHIFT)]
+		and	\rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE)
+		teq	\rd, #(UART_LSR_TEMT | UART_LSR_THRE)
 		bne	1001b
 1002:
 		.endm

arch/arm/mach-omap1/serial.c

@@ -64,7 +64,7 @@ static void __init omap_serial_reset(struct plat_serial8250_port *p)
 
 static struct plat_serial8250_port serial_platform_data[] = {
 	{
-		.mapbase	= OMAP_UART1_BASE,
+		.mapbase	= OMAP1_UART1_BASE,
 		.irq		= INT_UART1,
 		.flags		= UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
@@ -72,7 +72,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 		.uartclk	= OMAP16XX_BASE_BAUD * 16,
 	},
 	{
-		.mapbase	= OMAP_UART2_BASE,
+		.mapbase	= OMAP1_UART2_BASE,
 		.irq		= INT_UART2,
 		.flags		= UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
@@ -80,7 +80,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 		.uartclk	= OMAP16XX_BASE_BAUD * 16,
 	},
 	{
-		.mapbase	= OMAP_UART3_BASE,
+		.mapbase	= OMAP1_UART3_BASE,
 		.irq		= INT_UART3,
 		.flags		= UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,

arch/arm/mach-omap2/board-3630sdp.c

@@ -68,7 +68,7 @@ static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 
 static void __init omap_sdp_map_io(void)
 {
-	omap2_set_globals_343x();
+	omap2_set_globals_36xx();
 	omap2_map_common_io();
 }
 

arch/arm/mach-omap2/board-zoom3.c

@@ -26,7 +26,7 @@
 
 static void __init omap_zoom_map_io(void)
 {
-	omap2_set_globals_343x();
+	omap2_set_globals_36xx();
 	omap2_map_common_io();
 }
 

arch/arm/mach-omap2/include/mach/debug-macro.S

@@ -11,32 +11,107 @@
  *
 */
 
-		.macro	addruart,rx
+#include <linux/serial_reg.h>
+
+#include <plat/serial.h>
+
+#define UART_OFFSET(addr)	((addr) & 0x00ffffff)
+
+		.pushsection .data
+omap_uart_phys:	.word	0
+omap_uart_virt:	.word	0
+omap_uart_lsr:	.word	0
+		.popsection
+
+		/*
+		 * Note that this code won't work if the bootloader passes
+		 * a wrong machine ID number in r1. To debug, just hardcode
+		 * the desired UART phys and virt addresses temporarily into
+		 * the omap_uart_phys and omap_uart_virt above.
+		 */
+		.macro	addruart, rx, tmp
+
+		/* Use omap_uart_phys/virt if already configured */
+10:		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		ldreq	\rx, =omap_uart_phys	@ physical base address
+		ldrne	\rx, =omap_uart_virt	@ virtual base address
+		ldr	\rx, [\rx, #0]
+		cmp	\rx, #0			@ is port configured?
+		bne	99f			@ already configured
+
+		/* Check UART1 scratchpad register for uart to use */
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
-#ifdef  CONFIG_ARCH_OMAP2
 		moveq	\rx, #0x48000000	@ physical base address
 		movne	\rx, #0xfa000000	@ virtual base
-		orr	\rx, \rx, #0x0006a000
-#ifdef CONFIG_OMAP_LL_DEBUG_UART2
-		add	\rx, \rx, #0x00002000	@ UART 2
-#endif
-#ifdef CONFIG_OMAP_LL_DEBUG_UART3
-		add	\rx, \rx, #0x00004000	@ UART 3
-#endif
-
-#elif defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
-		moveq	\rx, #0x48000000	@ physical base address
-		movne	\rx, #0xfa000000	@ virtual base
-		orr	\rx, \rx, #0x0006a000
-#ifdef CONFIG_OMAP_LL_DEBUG_UART2
-		add	\rx, \rx, #0x00002000	@ UART 2
-#endif
-#ifdef CONFIG_OMAP_LL_DEBUG_UART3
-		add	\rx, \rx, #0x00fb0000	@ UART 3
-		add	\rx, \rx, #0x00006000
-#endif
-#endif
+		orr	\rx, \rx, #0x0006a000	@ uart1 on omap2/3/4
+		ldrb	\rx, [\rx, #(UART_SCR << OMAP_PORT_SHIFT)] @ scratchpad
+
+		/* Select the UART to use based on the UART1 scratchpad value */
+		cmp	\rx, #0			@ no port configured?
+		beq	21f			@ if none, try to use UART1
+		cmp	\rx, #OMAP2UART1	@ OMAP2/3/4UART1
+		beq	21f			@ configure OMAP2/3/4UART1
+		cmp	\rx, #OMAP2UART2	@ OMAP2/3/4UART2
+		beq	22f			@ configure OMAP2/3/4UART2
+		cmp	\rx, #OMAP2UART3	@ only on 24xx
+		beq	23f			@ configure OMAP2UART3
+		cmp	\rx, #OMAP3UART3	@ only on 34xx
+		beq	33f			@ configure OMAP3UART3
+		cmp	\rx, #OMAP4UART3	@ only on 44xx
+		beq	43f			@ configure OMAP4UART3
+		cmp	\rx, #OMAP3UART4	@ only on 36xx
+		beq	34f			@ configure OMAP3UART4
+		cmp	\rx, #OMAP4UART4	@ only on 44xx
+		beq	44f			@ configure OMAP4UART4
+		cmp	\rx, #ZOOM_UART		@ only on zoom2/3
+		beq	95f			@ configure ZOOM_UART
+
+		/* Configure the UART offset from the phys/virt base */
+21:		mov	\rx, #UART_OFFSET(OMAP2_UART1_BASE)	@ omap2/3/4
+		b	98f
+22:		mov	\rx, #UART_OFFSET(OMAP2_UART2_BASE)	@ omap2/3/4
+		b	98f
+23:		mov	\rx, #UART_OFFSET(OMAP2_UART3_BASE)
+		b	98f
+33:		mov	\rx, #UART_OFFSET(OMAP3_UART1_BASE)
+		add	\rx, \rx, #0x00fb0000
+		add	\rx, \rx, #0x00006000		@ OMAP3_UART3_BASE
+		b	98f
+34:		mov	\rx, #UART_OFFSET(OMAP3_UART1_BASE)
+		add	\rx, \rx, #0x00fb0000
+		add	\rx, \rx, #0x00028000		@ OMAP3_UART4_BASE
+		b	98f
+43:		mov	\rx, #UART_OFFSET(OMAP4_UART3_BASE)
+		b	98f
+44:		mov	\rx, #UART_OFFSET(OMAP4_UART4_BASE)
+		b	98f
+95:		mov	\rx, #ZOOM_UART_BASE
+		ldr	\tmp, =omap_uart_phys
+		str	\rx, [\tmp, #0]
+		mov	\rx, #ZOOM_UART_VIRT
+		ldr	\tmp, =omap_uart_virt
+		str	\rx, [\tmp, #0]
+		mov	\rx, #(UART_LSR << ZOOM_PORT_SHIFT)
+		ldr	\tmp, =omap_uart_lsr
+		str	\rx, [\tmp, #0]
+		b	10b
+
+		/* Store both phys and virt address for the uart */
+98:		add	\rx, \rx, #0x48000000	@ phys base
+		ldr	\tmp, =omap_uart_phys
+		str	\rx, [\tmp, #0]
+		sub	\rx, \rx, #0x48000000	@ phys base
+		add	\rx, \rx, #0xfa000000	@ virt base
+		ldr	\tmp, =omap_uart_virt
+		str	\rx, [\tmp, #0]
+		mov	\rx, #(UART_LSR << OMAP_PORT_SHIFT)
+		ldr	\tmp, =omap_uart_lsr
+		str	\rx, [\tmp, #0]
+
+		b	10b
+99:
 		.endm
 
 		.macro	senduart,rd,rx
@@ -44,15 +119,12 @@
 		.endm
 
 		.macro	busyuart,rd,rx
-1001:		ldrb	\rd, [\rx, #(0x5 << 2)]	@ OMAP-1510 and friends
-		and	\rd, \rd, #0x60
-		teq	\rd, #0x60
-		beq	1002f
-		ldrb	\rd, [\rx, #(0x5 << 0)]	@ OMAP-730 only
-		and	\rd, \rd, #0x60
-		teq	\rd, #0x60
+1001:		ldr	\rd, =omap_uart_lsr
+		ldr	\rd, [\rd, #0]
+		ldrb	\rd, [\rx, \rd]
+		and	\rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE)
+		teq	\rd, #(UART_LSR_TEMT | UART_LSR_THRE)
 		bne	1001b
-1002:
 		.endm
 
 		.macro	waituart,rd,rx

arch/arm/mach-omap2/serial.c

@@ -80,7 +80,6 @@ static LIST_HEAD(uart_list);
 
 static struct plat_serial8250_port serial_platform_data0[] = {
 	{
-		.mapbase	= OMAP_UART1_BASE,
 		.irq		= 72,
 		.flags		= UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
@@ -93,7 +92,6 @@ static struct plat_serial8250_port serial_platform_data0[] = {
 
 static struct plat_serial8250_port serial_platform_data1[] = {
 	{
-		.mapbase	= OMAP_UART2_BASE,
 		.irq		= 73,
 		.flags		= UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
@@ -106,7 +104,6 @@ static struct plat_serial8250_port serial_platform_data1[] = {
 
 static struct plat_serial8250_port serial_platform_data2[] = {
 	{
-		.mapbase	= OMAP_UART3_BASE,
 		.irq		= 74,
 		.flags		= UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
@@ -120,7 +117,6 @@ static struct plat_serial8250_port serial_platform_data2[] = {
 #ifdef CONFIG_ARCH_OMAP4
 static struct plat_serial8250_port serial_platform_data3[] = {
 	{
-		.mapbase	= OMAP_UART4_BASE,
 		.irq		= 70,
 		.flags		= UPF_BOOT_AUTOCONF,
 		.iotype		= UPIO_MEM,
@@ -131,6 +127,17 @@ static struct plat_serial8250_port serial_platform_data3[] = {
 	}
 };
 #endif
+
+void __init omap2_set_globals_uart(struct omap_globals *omap2_globals)
+{
+	serial_platform_data0[0].mapbase = omap2_globals->uart1_phys;
+	serial_platform_data1[0].mapbase = omap2_globals->uart2_phys;
+	serial_platform_data2[0].mapbase = omap2_globals->uart3_phys;
+#ifdef CONFIG_ARCH_OMAP4
+	serial_platform_data3[0].mapbase = omap2_globals->uart4_phys;
+#endif
+}
+
 static inline unsigned int __serial_read_reg(struct uart_port *up,
 					   int offset)
 {

arch/arm/mach-orion5x/include/mach/debug-macro.S

@@ -10,7 +10,7 @@
 
 #include <mach/orion5x.h>
 
-	.macro  addruart,rx
+	.macro  addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1					@ MMU enabled?
 	ldreq	\rx, =ORION5X_REGS_PHYS_BASE

arch/arm/mach-pnx4008/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  *
 */
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		mov	\rx, #0x00090000

arch/arm/mach-pxa/include/mach/debug-macro.S

@@ -13,7 +13,7 @@
 
 #include "hardware.h"
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x40000000		@ physical

arch/arm/mach-realview/include/mach/debug-macro.S

@@ -33,7 +33,7 @@
 #error "Unknown RealView platform"
 #endif
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx,      #0x10000000

arch/arm/mach-rpc/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  *
 */
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x03000000

arch/arm/mach-s3c2410/include/mach/debug-macro.S

@@ -19,7 +19,7 @@
 #define S3C2410_UART1_OFF (0x4000)
 #define SHIFT_2440TXF (14-9)
 
-	.macro addruart, rx
+	.macro addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1
 		ldreq	\rx, = S3C24XX_PA_UART

arch/arm/mach-s3c24a0/include/mach/debug-macro.S

@@ -10,7 +10,7 @@
 #include <mach/map.h>
 #include <plat/regs-serial.h>
 
-	.macro addruart, rx
+	.macro addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1
 		ldreq	\rx, = S3C24XX_PA_UART

arch/arm/mach-s3c6400/include/mach/debug-macro.S

@@ -21,7 +21,7 @@
 	 * aligned and add in the offset when we load the value here.
 	 */
 
-	.macro addruart, rx
+	.macro addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1
 		ldreq	\rx, = S3C_PA_UART

arch/arm/mach-s5pc100/include/mach/debug-macro.S

@@ -22,7 +22,7 @@
 	 * aligned and add in the offset when we load the value here.
 	 */
 
-	.macro addruart, rx
+	.macro addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1
 		ldreq	\rx, = S3C_PA_UART

arch/arm/mach-sa1100/include/mach/debug-macro.S

@@ -12,7 +12,7 @@
 */
 #include <mach/hardware.h>
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x80000000	@ physical base address

arch/arm/mach-shark/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  *
 */
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mov	\rx, #0xe0000000
 		orr	\rx, \rx, #0x000003f8
 		.endm

arch/arm/mach-u300/include/mach/debug-macro.S

@@ -10,7 +10,7 @@
  */
 #include <mach/hardware.h>
 
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	/* If we move the adress using MMU, use this. */
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1			@ MMU enabled?

arch/arm/mach-ux500/include/mach/debug-macro.S

@@ -8,7 +8,7 @@
  * published by the Free Software Foundation.
  *
  */
-	.macro	addruart,rx
+	.macro	addruart, rx, tmp
 	mrc	p15, 0, \rx, c1, c0
 	tst	\rx, #1			@MMU enabled?
 	moveq	\rx, #0x80000000	@MMU off, Physical address

arch/arm/mach-versatile/include/mach/debug-macro.S

@@ -11,7 +11,7 @@
  *
 */
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx,      #0x10000000

arch/arm/plat-mxc/include/mach/debug-macro.S

@@ -52,7 +52,7 @@
 #define UART_PADDR	MXC91231_UART2_BASE_ADDR
 #define UART_VADDR	MXC91231_AIPS1_IO_ADDRESS(MXC91231_UART2_BASE_ADDR)
 #endif
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		ldreq	\rx, =UART_PADDR	@ physical

arch/arm/plat-omap/Kconfig

@@ -141,25 +141,6 @@ config OMAP_DM_TIMER
 	help
 	 Select this option if you want to use OMAP Dual-Mode timers.
 
-choice
-	prompt "Low-level debug console UART"
-	depends on ARCH_OMAP
-	default OMAP_LL_DEBUG_NONE
-
-config OMAP_LL_DEBUG_UART1
-	bool "UART1"
-
-config OMAP_LL_DEBUG_UART2
-	bool "UART2"
-
-config OMAP_LL_DEBUG_UART3
-	bool "UART3"
-
-config OMAP_LL_DEBUG_NONE
-	bool "None"
-
-endchoice
-
 config OMAP_SERIAL_WAKE
 	bool "Enable wake-up events for serial ports"
 	depends on ARCH_OMAP1 && OMAP_MUX

arch/arm/plat-omap/common.c

@@ -34,6 +34,7 @@
 #include <plat/control.h>
 #include <plat/mux.h>
 #include <plat/fpga.h>
+#include <plat/serial.h>
 
 #include <plat/clock.h>
 
@@ -245,6 +246,7 @@ static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
 	omap2_set_globals_sdrc(omap2_globals);
 	omap2_set_globals_control(omap2_globals);
 	omap2_set_globals_prcm(omap2_globals);
+	omap2_set_globals_uart(omap2_globals);
 }
 
 #endif
@@ -259,6 +261,9 @@ static struct omap_globals omap242x_globals = {
 	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP2420_CTRL_BASE),
 	.prm	= OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
 	.cm	= OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
+	.uart1_phys	= OMAP2_UART1_BASE,
+	.uart2_phys	= OMAP2_UART2_BASE,
+	.uart3_phys	= OMAP2_UART3_BASE,
 };
 
 void __init omap2_set_globals_242x(void)
@@ -277,6 +282,9 @@ static struct omap_globals omap243x_globals = {
 	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
 	.prm	= OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
 	.cm	= OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
+	.uart1_phys	= OMAP2_UART1_BASE,
+	.uart2_phys	= OMAP2_UART2_BASE,
+	.uart3_phys	= OMAP2_UART3_BASE,
 };
 
 void __init omap2_set_globals_243x(void)
@@ -285,9 +293,9 @@ void __init omap2_set_globals_243x(void)
 }
 #endif
 
-#if defined(CONFIG_ARCH_OMAP3430)
+#if defined(CONFIG_ARCH_OMAP3)
 
-static struct omap_globals omap343x_globals = {
+static struct omap_globals omap3_globals = {
 	.class	= OMAP343X_CLASS,
 	.tap	= OMAP2_L4_IO_ADDRESS(0x4830A000),
 	.sdrc	= OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
@@ -295,11 +303,21 @@ static struct omap_globals omap343x_globals = {
 	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
 	.prm	= OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
 	.cm	= OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
+	.uart1_phys	= OMAP3_UART1_BASE,
+	.uart2_phys	= OMAP3_UART2_BASE,
+	.uart3_phys	= OMAP3_UART3_BASE,
 };
 
 void __init omap2_set_globals_343x(void)
 {
-	__omap2_set_globals(&omap343x_globals);
+	__omap2_set_globals(&omap3_globals);
+}
+
+void __init omap2_set_globals_36xx(void)
+{
+	omap3_globals.uart4_phys = OMAP3_UART4_BASE;
+
+	__omap2_set_globals(&omap3_globals);
 }
 #endif
 
@@ -311,6 +329,10 @@ static struct omap_globals omap4_globals = {
 	.prm	= OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE),
 	.cm	= OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
 	.cm2	= OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE),
+	.uart1_phys	= OMAP4_UART1_BASE,
+	.uart2_phys	= OMAP4_UART2_BASE,
+	.uart3_phys	= OMAP4_UART3_BASE,
+	.uart4_phys	= OMAP4_UART4_BASE,
 };
 
 void __init omap2_set_globals_443x(void)
@@ -318,6 +340,7 @@ void __init omap2_set_globals_443x(void)
 	omap2_set_globals_tap(&omap4_globals);
 	omap2_set_globals_control(&omap4_globals);
 	omap2_set_globals_prcm(&omap4_globals);
+	omap2_set_globals_uart(&omap4_globals);
 }
 #endif
 

arch/arm/plat-omap/include/plat/common.h

@@ -47,11 +47,16 @@ struct omap_globals {
 	void __iomem	*prm;		/* Power and Reset Management */
 	void __iomem	*cm;		/* Clock Management */
 	void __iomem	*cm2;
+	unsigned long	uart1_phys;
+	unsigned long	uart2_phys;
+	unsigned long	uart3_phys;
+	unsigned long	uart4_phys;
 };
 
 void omap2_set_globals_242x(void);
 void omap2_set_globals_243x(void);
 void omap2_set_globals_343x(void);
+void omap2_set_globals_36xx(void);
 void omap2_set_globals_443x(void);
 
 /* These get called from omap2_set_globals_xxxx(), do not call these */
@@ -59,6 +64,7 @@ void omap2_set_globals_tap(struct omap_globals *);
 void omap2_set_globals_sdrc(struct omap_globals *);
 void omap2_set_globals_control(struct omap_globals *);
 void omap2_set_globals_prcm(struct omap_globals *);
+void omap2_set_globals_uart(struct omap_globals *);
 
 /**
  * omap_test_timeout - busy-loop, testing a condition

arch/arm/plat-omap/include/plat/omap16xx.h

@@ -125,43 +125,43 @@
 #define OMAP16XX_MMCSD2_SSW_MPU_CONF	(TIPB_SWITCH_BASE + 0x160)
 
 /* UART3 Registers Mapping through MPU bus */
-#define UART3_RHR               (OMAP_UART3_BASE + 0)
-#define UART3_THR               (OMAP_UART3_BASE + 0)
-#define UART3_DLL               (OMAP_UART3_BASE + 0)
-#define UART3_IER               (OMAP_UART3_BASE + 4)
-#define UART3_DLH               (OMAP_UART3_BASE + 4)
-#define UART3_IIR               (OMAP_UART3_BASE + 8)
-#define UART3_FCR               (OMAP_UART3_BASE + 8)
-#define UART3_EFR               (OMAP_UART3_BASE + 8)
-#define UART3_LCR               (OMAP_UART3_BASE + 0x0C)
-#define UART3_MCR               (OMAP_UART3_BASE + 0x10)
-#define UART3_XON1_ADDR1        (OMAP_UART3_BASE + 0x10)
-#define UART3_XON2_ADDR2        (OMAP_UART3_BASE + 0x14)
-#define UART3_LSR               (OMAP_UART3_BASE + 0x14)
-#define UART3_TCR               (OMAP_UART3_BASE + 0x18)
-#define UART3_MSR               (OMAP_UART3_BASE + 0x18)
-#define UART3_XOFF1             (OMAP_UART3_BASE + 0x18)
-#define UART3_XOFF2             (OMAP_UART3_BASE + 0x1C)
-#define UART3_SPR               (OMAP_UART3_BASE + 0x1C)
-#define UART3_TLR               (OMAP_UART3_BASE + 0x1C)
-#define UART3_MDR1              (OMAP_UART3_BASE + 0x20)
-#define UART3_MDR2              (OMAP_UART3_BASE + 0x24)
-#define UART3_SFLSR             (OMAP_UART3_BASE + 0x28)
-#define UART3_TXFLL             (OMAP_UART3_BASE + 0x28)
-#define UART3_RESUME            (OMAP_UART3_BASE + 0x2C)
-#define UART3_TXFLH             (OMAP_UART3_BASE + 0x2C)
-#define UART3_SFREGL            (OMAP_UART3_BASE + 0x30)
-#define UART3_RXFLL             (OMAP_UART3_BASE + 0x30)
-#define UART3_SFREGH            (OMAP_UART3_BASE + 0x34)
-#define UART3_RXFLH             (OMAP_UART3_BASE + 0x34)
-#define UART3_BLR               (OMAP_UART3_BASE + 0x38)
-#define UART3_ACREG             (OMAP_UART3_BASE + 0x3C)
-#define UART3_DIV16             (OMAP_UART3_BASE + 0x3C)
-#define UART3_SCR               (OMAP_UART3_BASE + 0x40)
-#define UART3_SSR               (OMAP_UART3_BASE + 0x44)
-#define UART3_EBLR              (OMAP_UART3_BASE + 0x48)
-#define UART3_OSC_12M_SEL       (OMAP_UART3_BASE + 0x4C)
-#define UART3_MVR               (OMAP_UART3_BASE + 0x50)
+#define UART3_RHR               (OMAP1_UART3_BASE + 0)
+#define UART3_THR               (OMAP1_UART3_BASE + 0)
+#define UART3_DLL               (OMAP1_UART3_BASE + 0)
+#define UART3_IER               (OMAP1_UART3_BASE + 4)
+#define UART3_DLH               (OMAP1_UART3_BASE + 4)
+#define UART3_IIR               (OMAP1_UART3_BASE + 8)
+#define UART3_FCR               (OMAP1_UART3_BASE + 8)
+#define UART3_EFR               (OMAP1_UART3_BASE + 8)
+#define UART3_LCR               (OMAP1_UART3_BASE + 0x0C)
+#define UART3_MCR               (OMAP1_UART3_BASE + 0x10)
+#define UART3_XON1_ADDR1        (OMAP1_UART3_BASE + 0x10)
+#define UART3_XON2_ADDR2        (OMAP1_UART3_BASE + 0x14)
+#define UART3_LSR               (OMAP1_UART3_BASE + 0x14)
+#define UART3_TCR               (OMAP1_UART3_BASE + 0x18)
+#define UART3_MSR               (OMAP1_UART3_BASE + 0x18)
+#define UART3_XOFF1             (OMAP1_UART3_BASE + 0x18)
+#define UART3_XOFF2             (OMAP1_UART3_BASE + 0x1C)
+#define UART3_SPR               (OMAP1_UART3_BASE + 0x1C)
+#define UART3_TLR               (OMAP1_UART3_BASE + 0x1C)
+#define UART3_MDR1              (OMAP1_UART3_BASE + 0x20)
+#define UART3_MDR2              (OMAP1_UART3_BASE + 0x24)
+#define UART3_SFLSR             (OMAP1_UART3_BASE + 0x28)
+#define UART3_TXFLL             (OMAP1_UART3_BASE + 0x28)
+#define UART3_RESUME            (OMAP1_UART3_BASE + 0x2C)
+#define UART3_TXFLH             (OMAP1_UART3_BASE + 0x2C)
+#define UART3_SFREGL            (OMAP1_UART3_BASE + 0x30)
+#define UART3_RXFLL             (OMAP1_UART3_BASE + 0x30)
+#define UART3_SFREGH            (OMAP1_UART3_BASE + 0x34)
+#define UART3_RXFLH             (OMAP1_UART3_BASE + 0x34)
+#define UART3_BLR               (OMAP1_UART3_BASE + 0x38)
+#define UART3_ACREG             (OMAP1_UART3_BASE + 0x3C)
+#define UART3_DIV16             (OMAP1_UART3_BASE + 0x3C)
+#define UART3_SCR               (OMAP1_UART3_BASE + 0x40)
+#define UART3_SSR               (OMAP1_UART3_BASE + 0x44)
+#define UART3_EBLR              (OMAP1_UART3_BASE + 0x48)
+#define UART3_OSC_12M_SEL       (OMAP1_UART3_BASE + 0x4C)
+#define UART3_MVR               (OMAP1_UART3_BASE + 0x50)
 
 /*
  * ---------------------------------------------------------------------------

arch/arm/plat-omap/include/plat/serial.h

@@ -15,37 +15,65 @@
 
 #include <linux/init.h>
 
-#if defined(CONFIG_ARCH_OMAP1)
 /* OMAP1 serial ports */
-#define OMAP_UART1_BASE		0xfffb0000
-#define OMAP_UART2_BASE		0xfffb0800
-#define OMAP_UART3_BASE		0xfffb9800
-#elif defined(CONFIG_ARCH_OMAP2)
+#define OMAP1_UART1_BASE	0xfffb0000
+#define OMAP1_UART2_BASE	0xfffb0800
+#define OMAP1_UART3_BASE	0xfffb9800
+
 /* OMAP2 serial ports */
-#define OMAP_UART1_BASE		0x4806a000
-#define OMAP_UART2_BASE		0x4806c000
-#define OMAP_UART3_BASE		0x4806e000
-#elif defined(CONFIG_ARCH_OMAP3)
+#define OMAP2_UART1_BASE	0x4806a000
+#define OMAP2_UART2_BASE	0x4806c000
+#define OMAP2_UART3_BASE	0x4806e000
+
 /* OMAP3 serial ports */
-#define OMAP_UART1_BASE		0x4806a000
-#define OMAP_UART2_BASE		0x4806c000
-#define OMAP_UART3_BASE		0x49020000
-#elif defined(CONFIG_ARCH_OMAP4)
+#define OMAP3_UART1_BASE	OMAP2_UART1_BASE
+#define OMAP3_UART2_BASE	OMAP2_UART2_BASE
+#define OMAP3_UART3_BASE	0x49020000
+#define OMAP3_UART4_BASE	0x49042000	/* Only on 36xx */
+
 /* OMAP4 serial ports */
-#define OMAP_UART1_BASE		0x4806a000
-#define OMAP_UART2_BASE		0x4806c000
-#define OMAP_UART3_BASE		0x48020000
-#define OMAP_UART4_BASE		0x4806e000
-#endif
+#define OMAP4_UART1_BASE	OMAP2_UART1_BASE
+#define OMAP4_UART2_BASE	OMAP2_UART2_BASE
+#define OMAP4_UART3_BASE	0x48020000
+#define OMAP4_UART4_BASE	0x4806e000
+
+/* External port on Zoom2/3 */
+#define ZOOM_UART_BASE		0x10000000
+#define ZOOM_UART_VIRT		0xfb000000
+
+#define OMAP_PORT_SHIFT		2
+#define OMAP7XX_PORT_SHIFT	0
+#define ZOOM_PORT_SHIFT		1
 
 #define OMAP1510_BASE_BAUD	(12000000/16)
 #define OMAP16XX_BASE_BAUD	(48000000/16)
 #define OMAP24XX_BASE_BAUD	(48000000/16)
 
+/*
+ * DEBUG_LL port encoding stored into the UART1 scratchpad register by
+ * decomp_setup in uncompress.h
+ */
+#define OMAP1UART1		11
+#define OMAP1UART2		12
+#define OMAP1UART3		13
+#define OMAP2UART1		21
+#define OMAP2UART2		22
+#define OMAP2UART3		23
+#define OMAP3UART1		OMAP2UART1
+#define OMAP3UART2		OMAP2UART2
+#define OMAP3UART3		33
+#define OMAP3UART4		34		/* Only on 36xx */
+#define OMAP4UART1		OMAP2UART1
+#define OMAP4UART2		OMAP2UART2
+#define OMAP4UART3		43
+#define OMAP4UART4		44
+#define ZOOM_UART		95		/* Only on zoom2/3 */
+
+/* This is only used by 8250.c for omap1510 */
 #define is_omap_port(pt)	({int __ret = 0;			\
-			if ((pt)->port.mapbase == OMAP_UART1_BASE ||	\
-			    (pt)->port.mapbase == OMAP_UART2_BASE ||	\
-			    (pt)->port.mapbase == OMAP_UART3_BASE)	\
+			if ((pt)->port.mapbase == OMAP1_UART1_BASE ||	\
+			    (pt)->port.mapbase == OMAP1_UART2_BASE ||	\
+			    (pt)->port.mapbase == OMAP1_UART3_BASE)	\
 				__ret = 1;				\
 			__ret;						\
 			})

arch/arm/plat-omap/include/plat/uncompress.h

@@ -19,70 +19,155 @@
 
 #include <linux/types.h>
 #include <linux/serial_reg.h>
+
+#include <asm/mach-types.h>
+
 #include <plat/serial.h>
 
-unsigned int system_rev;
+static volatile u8 *uart1_base;
+static int uart1_shift;
 
-#define UART_OMAP_MDR1		0x08	/* mode definition register */
-#define OMAP_ID_730		0x355F
-#define OMAP_ID_850		0x362C
-#define ID_MASK			0x7fff
-#define check_port(base, shift) ((base[UART_OMAP_MDR1 << shift] & 7) == 0)
-#define omap_get_id() ((*(volatile unsigned int *)(0xfffed404)) >> 12) & ID_MASK
+static volatile u8 *uart_base;
+static int uart_shift;
 
-static void putc(int c)
+/*
+ * Store the DEBUG_LL uart number into UART1 scratchpad register.
+ * See also debug-macro.S, and serial.c for related code.
+ *
+ * Please note that we currently assume that:
+ * - UART1 clocks are enabled for register access
+ * - UART1 scratchpad register can be used
+ */
+static void set_uart1_scratchpad(unsigned char port)
 {
-	volatile u8 * uart = 0;
-	int shift = 2;
-
-#ifdef CONFIG_MACH_OMAP_PALMTE
-	return;
-#endif
-
-#ifdef CONFIG_ARCH_OMAP
-#ifdef	CONFIG_OMAP_LL_DEBUG_UART3
-	uart = (volatile u8 *)(OMAP_UART3_BASE);
-#elif defined(CONFIG_OMAP_LL_DEBUG_UART2)
-	uart = (volatile u8 *)(OMAP_UART2_BASE);
-#elif defined(CONFIG_OMAP_LL_DEBUG_UART1)
-	uart = (volatile u8 *)(OMAP_UART1_BASE);
-#elif defined(CONFIG_OMAP_LL_DEBUG_NONE)
-	return;
-#else
-	return;
-#endif
-
-#ifdef CONFIG_ARCH_OMAP1
-	/* Determine which serial port to use */
-	do {
-		/* MMU is not on, so cpu_is_omapXXXX() won't work here */
-		unsigned int omap_id = omap_get_id();
-
-		if (omap_id == OMAP_ID_730 || omap_id == OMAP_ID_850)
-			shift = 0;
+	uart1_base[UART_SCR << uart1_shift] = port;
+}
 
-		if (check_port(uart, shift))
-			break;
-		/* Silent boot if no serial ports are enabled. */
+static void putc(int c)
+{
+	if (!uart_base)
 		return;
-	} while (0);
-#endif /* CONFIG_ARCH_OMAP1 */
-#endif
 
-	/*
-	 * Now, xmit each character
-	 */
-	while (!(uart[UART_LSR << shift] & UART_LSR_THRE))
+	while (!(uart_base[UART_LSR << uart_shift] & UART_LSR_THRE))
 		barrier();
-	uart[UART_TX << shift] = c;
+	uart_base[UART_TX << uart_shift] = c;
 }
 
 static inline void flush(void)
 {
 }
 
+/*
+ * Macros to configure UART1 and debug UART
+ */
+#define _DEBUG_LL_ENTRY(mach, uart1_phys, uart1_shft,			\
+			dbg_uart, dbg_shft, dbg_id)			\
+	if (machine_is_##mach()) {					\
+		uart1_base = (volatile u8 *)(uart1_phys);		\
+		uart1_shift = (uart1_shft);				\
+		uart_base = (volatile u8 *)(dbg_uart);			\
+		uart_shift = (dbg_shft);				\
+		port = (dbg_id);					\
+		set_uart1_scratchpad(port);				\
+		break;							\
+	}
+
+#define DEBUG_LL_OMAP7XX(p, mach)					\
+	_DEBUG_LL_ENTRY(mach, OMAP1_UART1_BASE, OMAP7XX_PORT_SHIFT,	\
+		OMAP1_UART##p##_BASE, OMAP7XX_PORT_SHIFT, OMAP1UART##p)
+
+#define DEBUG_LL_OMAP1(p, mach)						\
+	_DEBUG_LL_ENTRY(mach, OMAP1_UART1_BASE, OMAP_PORT_SHIFT,	\
+		OMAP1_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP1UART##p)
+
+#define DEBUG_LL_OMAP2(p, mach)						\
+	_DEBUG_LL_ENTRY(mach, OMAP2_UART1_BASE, OMAP_PORT_SHIFT,	\
+		OMAP2_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP2UART##p)
+
+#define DEBUG_LL_OMAP3(p, mach)						\
+	_DEBUG_LL_ENTRY(mach, OMAP3_UART1_BASE, OMAP_PORT_SHIFT,	\
+		OMAP3_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP3UART##p)
+
+#define DEBUG_LL_OMAP4(p, mach)						\
+	_DEBUG_LL_ENTRY(mach, OMAP4_UART1_BASE, OMAP_PORT_SHIFT,	\
+		OMAP4_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP4UART##p)
+
+/* Zoom2/3 shift is different for UART1 and external port */
+#define DEBUG_LL_ZOOM(mach)						\
+	_DEBUG_LL_ENTRY(mach, OMAP2_UART1_BASE, OMAP_PORT_SHIFT,	\
+		ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART)
+
+static inline void __arch_decomp_setup(unsigned long arch_id)
+{
+	int port = 0;
+
+	/*
+	 * Initialize the port based on the machine ID from the bootloader.
+	 * Note that we're using macros here instead of switch statement
+	 * as machine_is functions are optimized out for the boards that
+	 * are not selected.
+	 */
+	do {
+		/* omap7xx/8xx based boards using UART1 with shift 0 */
+		DEBUG_LL_OMAP7XX(1, herald);
+		DEBUG_LL_OMAP7XX(1, omap_perseus2);
+
+		/* omap15xx/16xx based boards using UART1 */
+		DEBUG_LL_OMAP1(1, ams_delta);
+		DEBUG_LL_OMAP1(1, nokia770);
+		DEBUG_LL_OMAP1(1, omap_h2);
+		DEBUG_LL_OMAP1(1, omap_h3);
+		DEBUG_LL_OMAP1(1, omap_innovator);
+		DEBUG_LL_OMAP1(1, omap_osk);
+		DEBUG_LL_OMAP1(1, omap_palmte);
+		DEBUG_LL_OMAP1(1, omap_palmz71);
+
+		/* omap15xx/16xx based boards using UART2 */
+		DEBUG_LL_OMAP1(2, omap_palmtt);
+
+		/* omap15xx/16xx based boards using UART3 */
+		DEBUG_LL_OMAP1(3, sx1);
+
+		/* omap2 based boards using UART1 */
+		DEBUG_LL_OMAP2(1, omap2evm);
+		DEBUG_LL_OMAP2(1, omap_2430sdp);
+		DEBUG_LL_OMAP2(1, omap_apollon);
+		DEBUG_LL_OMAP2(1, omap_h4);
+
+		/* omap2 based boards using UART3 */
+		DEBUG_LL_OMAP2(3, nokia_n800);
+		DEBUG_LL_OMAP2(3, nokia_n810);
+		DEBUG_LL_OMAP2(3, nokia_n810_wimax);
+
+		/* omap3 based boards using UART1 */
+		DEBUG_LL_OMAP2(1, omap3evm);
+		DEBUG_LL_OMAP3(1, omap_3430sdp);
+		DEBUG_LL_OMAP3(1, omap_3630sdp);
+
+		/* omap3 based boards using UART3 */
+		DEBUG_LL_OMAP3(3, cm_t35);
+		DEBUG_LL_OMAP3(3, igep0020);
+		DEBUG_LL_OMAP3(3, nokia_rx51);
+		DEBUG_LL_OMAP3(3, omap3517evm);
+		DEBUG_LL_OMAP3(3, omap3_beagle);
+		DEBUG_LL_OMAP3(3, omap3_pandora);
+		DEBUG_LL_OMAP3(3, omap_ldp);
+		DEBUG_LL_OMAP3(3, overo);
+		DEBUG_LL_OMAP3(3, touchbook);
+
+		/* omap4 based boards using UART3 */
+		DEBUG_LL_OMAP4(3, omap_4430sdp);
+
+		/* zoom2/3 external uart */
+		DEBUG_LL_ZOOM(omap_zoom2);
+		DEBUG_LL_ZOOM(omap_zoom3);
+
+	} while (0);
+}
+
+#define arch_decomp_setup()	__arch_decomp_setup(arch_id)
+
 /*
  * nothing to do
  */
-#define arch_decomp_setup()
 #define arch_decomp_wdog()

arch/arm/plat-stmp3xxx/include/mach/debug-macro.S

@@ -16,7 +16,7 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx, #0x80000000	@ physical base address