/* * * Copyright (C) 2007 Google, Inc. * Copyright (c) 2011, Code Aurora Forum. All rights reserved. * Author: Brian Swetland <swetland@google.com> * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * */ 	.macro	addruart, rp, rv, tmp	ldr	\rp, =CONFIG_DEBUG_UART_PHYS	ldr	\rv, =CONFIG_DEBUG_UART_VIRT	.endm 	.macro	senduart, rd, rxARM_BE8(rev	\rd, \rd )	@ Write the 1 character to UARTDM_TF	str	\rd, [\rx, #0x70]	.endm 	.macro	waituart, rd, rx	@ check for TX_EMT in UARTDM_SR	ldr	\rd, [\rx, #0x08]ARM_BE8(rev     \rd, \rd )	tst	\rd, #0x08	bne	1002f	@ wait for TXREADY in UARTDM_ISR1001:	ldr	\rd, [\rx, #0x14]ARM_BE8(rev     \rd, \rd )	tst	\rd, #0x80	beq 	1001b1002:	@ Clear TX_READY by writing to the UARTDM_CR register	mov	\rd, #0x300ARM_BE8(rev     \rd, \rd )	str	\rd, [\rx, #0x10]	@ Write 0x1 to NCF register	mov 	\rd, #0x1ARM_BE8(rev     \rd, \rd )	str	\rd, [\rx, #0x40]	@ UARTDM reg. Read to induce delay	ldr	\rd, [\rx, #0x08]	.endm 	.macro	busyuart, rd, rx	.endm