[deliverable/linux.git] / arch / arm / include / debug / digicolor.S

/*
 * Debugging macro include header for Conexant Digicolor USART
 *
 * Copyright (C) 2014 Paradox Innovation Ltd.
 *
 * 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.
 *
*/

#define UA0_STATUS	0x0742
#define UA0_EMI_REC	0x0744

#define UA0_STATUS_TX_READY	0x40

#ifdef CONFIG_DEBUG_UART_PHYS
		.macro	addruart, rp, rv, tmp
		ldr	\rp, =CONFIG_DEBUG_UART_PHYS
		ldr	\rv, =CONFIG_DEBUG_UART_VIRT
		.endm
#endif

		.macro	senduart,rd,rx
		strb	\rd, [\rx, #UA0_EMI_REC]
		.endm

		.macro	waituart,rd,rx
		.endm

	.macro	busyuart,rd,rx
1001:		ldrb	\rd, [\rx, #UA0_STATUS]
		tst	\rd, #UA0_STATUS_TX_READY
		beq	1001b
		.endm
Commit	Line	Data
e23814da BS	1	/*
	2	* Debugging macro include header for Conexant Digicolor USART
	3	*
	4	* Copyright (C) 2014 Paradox Innovation Ltd.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	*/
	11
	12	#define UA0_STATUS 0x0742
	13	#define UA0_EMI_REC 0x0744
	14
	15	#define UA0_STATUS_TX_READY 0x40
	16
	17	#ifdef CONFIG_DEBUG_UART_PHYS
	18	.macro addruart, rp, rv, tmp
	19	ldr \rp, =CONFIG_DEBUG_UART_PHYS
	20	ldr \rv, =CONFIG_DEBUG_UART_VIRT
	21	.endm
	22	#endif
	23
	24	.macro senduart,rd,rx
	25	strb \rd, [\rx, #UA0_EMI_REC]
	26	.endm
	27
	28	.macro waituart,rd,rx
	29	.endm
	30
	31	.macro busyuart,rd,rx
	32	1001: ldrb \rd, [\rx, #UA0_STATUS]
	33	tst \rd, #UA0_STATUS_TX_READY
	34	beq 1001b
	35	.endm