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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/arm/mach-msm/include/mach/debug-macro.S
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/* arch/arm/mach-msm7200/include/mach/debug-macro.S

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 *

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 * Copyright (C) 2007 Google, Inc.

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 * Author: Brian Swetland <[email protected]>

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 *

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 * This software is licensed under the terms of the GNU General Public

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 * License version 2, as published by the Free Software Foundation, and

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 * may be copied, distributed, and modified under those terms.

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 *

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 * This program is distributed in the hope that it will be useful,

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 * but WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 * GNU General Public License for more details.

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 *

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 */

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#include <mach/hardware.h>

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#include <mach/msm_iomap.h>

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#if defined(CONFIG_HAS_MSM_DEBUG_UART_PHYS) && !defined(CONFIG_MSM_DEBUG_UART_NONE)

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	.macro	addruart, rp, rv

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	ldr	\rp, =MSM_DEBUG_UART_PHYS

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	ldr	\rv, =MSM_DEBUG_UART_BASE

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	.endm

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	.macro	senduart,rd,rx

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	teq	\rx, #0

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	strne	\rd, [\rx, #0x0C]

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	.endm

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	.macro	waituart,rd,rx

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	@ wait for TX_READY

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1001:	ldr	\rd, [\rx, #0x08]

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	tst	\rd, #0x04

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	beq	1001b

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	.endm

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#else

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	.macro  addruart, rp, rv

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	mov	\rv, #0xff000000

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	orr	\rv, \rv, #0x00f00000

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	.endm

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	.macro	senduart,rd,rx

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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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	.macro	busyuart,rd,rx

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	.endm

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