sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

MIPS: add initial Loongson-1X SoC stuff 

This code is based on linux-3.6 code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Antony Pavlov 2014-01-23 08:00:27 +01:00 committed by Sascha Hauer
parent 7c0da29613
commit 0b2b371a55
3 changed files with 60 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/mips/mach-loongson/Makefile Normal file
View File

@ -0,0 +1 @@
obj-y += loongson1_reset.o

32
arch/mips/mach-loongson/include/mach/loongson1.h Normal file
View File

@ -0,0 +1,32 @@
/*
* Copyright (c) 2011 Zhang, Keguang <keguang.zhang at gmail.com>
*
* Register mappings for Loongson 1
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __ASM_MACH_LOONGSON1_LOONGSON1_H
#define __ASM_MACH_LOONGSON1_LOONGSON1_H
#include <asm/addrspace.h>
/* Loongson 1 Register Bases */
#define LS1X_UART0_BASE 0x1fe40000
#define LS1X_UART1_BASE 0x1fe44000
#define LS1X_UART2_BASE 0x1fe48000
#define LS1X_UART3_BASE 0x1fe4c000
#define LS1X_WDT_BASE 0x1fe5c060
/* Loongson 1 watchdog register definitions */
#define LS1X_WDT_REG(x) \
((void __iomem *)KSEG1ADDR(LS1X_WDT_BASE + (x)))
#define LS1X_WDT_EN LS1X_WDT_REG(0x0)
#define LS1X_WDT_SET LS1X_WDT_REG(0x4)
#define LS1X_WDT_TIMER LS1X_WDT_REG(0x8)
#endif /* __ASM_MACH_LOONGSON1_LOONGSON1_H */

27
arch/mips/mach-loongson/loongson1_reset.c Normal file
View File

@ -0,0 +1,27 @@
/*
* Copyright (C) 2014 Antony Pavlov <antonynpavlov at gmail.com>
*
* 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.
*
* 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.
*
*/
#include <common.h>
#include <io.h>
#include <mach/loongson1.h>
void __noreturn reset_cpu(ulong addr)
{
__raw_writel(0x1, LS1X_WDT_EN);
__raw_writel(0x1, LS1X_WDT_SET);
__raw_writel(0x1, LS1X_WDT_TIMER);
unreachable();
}
EXPORT_SYMBOL(reset_cpu);