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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/arm/mach-footbridge/include/mach/debug-macro.S
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/* arch/arm/mach-footbridge/include/mach/debug-macro.S

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 *

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 * Debugging macro include header

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 *

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 *  Copyright (C) 1994-1999 Russell King

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 *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 *

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*/

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#include <asm/hardware/dec21285.h>

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#ifndef CONFIG_DEBUG_DC21285_PORT

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	/* For NetWinder debugging */

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		.macro	addruart, rp, rv

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		mov	\rp, #0x000003f8

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		orr	\rv, \rp, #0xff000000	@ virtual

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		orr	\rp, \rp, #0x7c000000	@ physical

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		.endm

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#define UART_SHIFT	0

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#define FLOW_CONTROL

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#include <asm/hardware/debug-8250.S>

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#else

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#include <mach/hardware.h>

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	/* For EBSA285 debugging */

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		.equ	dc21285_high, ARMCSR_BASE & 0xff000000

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		.equ	dc21285_low,  ARMCSR_BASE & 0x00ffffff

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		.macro	addruart, rp, rv

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		.if	dc21285_low

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		mov	\rp, #dc21285_low

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		.else

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		mov	\rp, #0

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		.endif

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		orr	\rv, \rp, #dc21285_high

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		orr	\rp, \rp, #0x42000000

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		.endm

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		.macro	senduart,rd,rx

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		str	\rd, [\rx, #0x160]	@ UARTDR

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		.endm

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		.macro	busyuart,rd,rx

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1001:		ldr	\rd, [\rx, #0x178]	@ UARTFLG

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		tst	\rd, #1 << 3

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		bne	1001b

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		.endm

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		.macro	waituart,rd,rx

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		.endm

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#endif

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