[people/ms/u-boot.git] / arch / arm / mach-uniphier / ph1-ld4 / lowlevel_debug.S

/*
 * On-chip UART initializaion for low-level debugging
 *
 * Copyright (C) 2014 Panasonic Corporation
 *   Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <linux/linkage.h>
#include <mach/sg-regs.h>

#define UART_CLK		36864000
#include <mach/debug-uart.S>

ENTRY(setup_lowlevel_debug)
		ldr		r0, =SG_IECTRL
		ldr		r1, [r0]
		orr		r1, r1, #1
		str		r1, [r0]

		/* UART Port 0 */
		sg_set_pinsel	85, 1, 8, 4, r0, r1
		sg_set_pinsel	88, 1, 8, 4, r0, r1

		init_debug_uart	r0, r1, r2

		mov		pc, lr
ENDPROC(setup_lowlevel_debug)
Commit	Line	Data
b4ad44ba MY	1	/*
	2	* On-chip UART initializaion for low-level debugging
	3	*
	4	* Copyright (C) 2014 Panasonic Corporation
	5	* Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
	6	*
	7	* SPDX-License-Identifier: GPL-2.0+
	8	*/
	9
	10	#include <linux/linkage.h>
a86ac954	11	#include <mach/sg-regs.h>
b4ad44ba MY	12
b4ad44ba MY	13	#define UART_CLK 36864000
a86ac954	14	#include <mach/debug-uart.S>
b4ad44ba MY	15
b4ad44ba MY	16	ENTRY(setup_lowlevel_debug)
fcbcd597 MY	17	ldr r0, =SG_IECTRL
	18	ldr r1, [r0]
	19	orr r1, r1, #1
	20	str r1, [r0]
b4ad44ba MY	21
b4ad44ba MY	22	/* UART Port 0 */
9628afa7 MY	23	sg_set_pinsel 85, 1, 8, 4, r0, r1
9628afa7 MY	24	sg_set_pinsel 88, 1, 8, 4, r0, r1
b4ad44ba	25
fcbcd597	26	init_debug_uart r0, r1, r2
b4ad44ba MY	27
	28	mov pc, lr
	29	ENDPROC(setup_lowlevel_debug)