/* * arch/arm/include/debug/8250.S * *  Copyright (C) 1994-2013 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */#include <linux/serial_reg.h> 		.macro	addruart, rp, rv, tmp		ldr	\rp, =CONFIG_DEBUG_UART_PHYS		ldr	\rv, =CONFIG_DEBUG_UART_VIRT		.endm #ifdef CONFIG_DEBUG_UART_8250_WORD		.macro	store, rd, rx:vararg	 ARM_BE8(rev \rd, \rd)		str	\rd, \rx	 ARM_BE8(rev \rd, \rd)		.endm 		.macro	load, rd, rx:vararg		ldr	\rd, \rx	ARM_BE8(rev \rd, \rd)		.endm#else		.macro	store, rd, rx:vararg		strb	\rd, \rx		.endm 		.macro	load, rd, rx:vararg		ldrb	\rd, \rx		.endm#endif #define UART_SHIFT CONFIG_DEBUG_UART_8250_SHIFT 		.macro	senduart,rd,rx		store	\rd, [\rx, #UART_TX << UART_SHIFT]		.endm 		.macro	busyuart,rd,rx1002:		load	\rd, [\rx, #UART_LSR << UART_SHIFT]		and	\rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE		teq	\rd, #UART_LSR_TEMT | UART_LSR_THRE		bne	1002b		.endm 		.macro	waituart,rd,rx#ifdef CONFIG_DEBUG_UART_8250_FLOW_CONTROL1001:		load	\rd, [\rx, #UART_MSR << UART_SHIFT]		tst	\rd, #UART_MSR_CTS		beq	1001b#endif		.endm