mirror of https://gitee.com/openkylin/linux.git
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
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* arch/arm/mach-at91/at91rm9200.c
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*
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* Copyright (C) 2005 SAN People
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#include <linux/module.h>
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#include <linux/clk/at91_pmc.h>
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#include <asm/mach/map.h>
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#include <asm/system_misc.h>
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#include <mach/at91_st.h>
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#include <mach/hardware.h>
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#include "soc.h"
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#include "generic.h"
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static void at91rm9200_idle(void)
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{
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/*
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* Disable the processor clock. The processor will be automatically
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* re-enabled by an interrupt or by a reset.
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*/
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at91_pmc_write(AT91_PMC_SCDR, AT91_PMC_PCK);
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}
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static void at91rm9200_restart(enum reboot_mode reboot_mode, const char *cmd)
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{
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/*
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* Perform a hardware reset with the use of the Watchdog timer.
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*/
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at91_st_write(AT91_ST_WDMR, AT91_ST_RSTEN | AT91_ST_EXTEN | 1);
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at91_st_write(AT91_ST_CR, AT91_ST_WDRST);
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}
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/* --------------------------------------------------------------------
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* AT91RM9200 processor initialization
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* -------------------------------------------------------------------- */
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static void __init at91rm9200_map_io(void)
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{
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/* Map peripherals */
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at91_init_sram(0, AT91RM9200_SRAM_BASE, AT91RM9200_SRAM_SIZE);
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}
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static void __init at91rm9200_initialize(void)
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{
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arm_pm_idle = at91rm9200_idle;
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arm_pm_restart = at91rm9200_restart;
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}
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AT91_SOC_START(at91rm9200)
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.map_io = at91rm9200_map_io,
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.init = at91rm9200_initialize,
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AT91_SOC_END
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