diff options
-rw-r--r-- | arch/mips/mach-loongson/Makefile | 1 | ||||
-rw-r--r-- | arch/mips/mach-loongson/include/mach/loongson1.h | 32 | ||||
-rw-r--r-- | arch/mips/mach-loongson/loongson1_reset.c | 27 |
3 files changed, 60 insertions, 0 deletions
diff --git a/arch/mips/mach-loongson/Makefile b/arch/mips/mach-loongson/Makefile new file mode 100644 index 0000000000..52b36f3cf9 --- /dev/null +++ b/arch/mips/mach-loongson/Makefile @@ -0,0 +1 @@ +obj-y += loongson1_reset.o diff --git a/arch/mips/mach-loongson/include/mach/loongson1.h b/arch/mips/mach-loongson/include/mach/loongson1.h new file mode 100644 index 0000000000..12fdbc00bc --- /dev/null +++ b/arch/mips/mach-loongson/include/mach/loongson1.h @@ -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 */ diff --git a/arch/mips/mach-loongson/loongson1_reset.c b/arch/mips/mach-loongson/loongson1_reset.c new file mode 100644 index 0000000000..8975392ca6 --- /dev/null +++ b/arch/mips/mach-loongson/loongson1_reset.c @@ -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); |