1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
/*
* 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 <asm/arch/sg-regs.h>
#define UART_CLK 80000000
#include <asm/arch/debug-uart.S>
ENTRY(setup_lowlevel_debug)
init_debug_uart r0, r1, r2
/* UART Port 0 */
set_pinsel 70, 3, r0, r1
set_pinsel 71, 3, r0, r1
ldr r0, =SG_IECTRL
ldr r1, [r0]
orr r1, r1, #1
str r1, [r0]
mov pc, lr
ENDPROC(setup_lowlevel_debug)
|
