mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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1048c7b452
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34060 3c298f89-4303-0410-b956-a3cf2f4a3e73
96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
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*/
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/ioport.h>
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#include <linux/pm.h>
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#include <linux/module.h>
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#include <asm/reboot.h>
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#include <lantiq_soc.h>
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#include "../machtypes.h"
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#include <base_reg.h>
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#include <sys1_reg.h>
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#include <boot_reg.h>
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#include <ebu_reg.h>
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static struct svip_reg_sys1 *const sys1 = (struct svip_reg_sys1 *)LTQ_SYS1_BASE;
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static struct svip_reg_ebu *const ebu = (struct svip_reg_ebu *)LTQ_EBU_BASE;
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#define CPLD_CMDREG3 ((volatile unsigned char*)(KSEG1 + 0x120000f3))
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extern void switchip_reset(void);
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static void ltq_machine_restart(char *command)
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{
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printk(KERN_NOTICE "System restart\n");
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local_irq_disable();
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if (mips_machtype == LANTIQ_MACH_EASY33016 ||
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mips_machtype == LANTIQ_MACH_EASY336) {
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/* We just use the CPLD function to reset the entire system as a
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workaround for the switch reset problem */
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local_irq_disable();
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ebu_w32(0x120000f1, addr_sel_2);
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ebu_w32(0x404027ff, con_2);
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if (mips_machtype == LANTIQ_MACH_EASY336)
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/* set bit 0 to reset SVIP */
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*CPLD_CMDREG3 = (1<<0);
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else
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/* set bit 7 to reset SVIP, set bit 3 to reset xT */
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*CPLD_CMDREG3 = (1<<7) | (1<<3);
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} else {
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*LTQ_BOOT_RVEC(0) = 0;
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/* reset all except PER, SUBSYS and CPU0 */
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sys1_w32(0x00043F3E, rreqr);
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/* release WDT0 reset */
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sys1_w32(0x00000100, rrlsr);
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/* restore reset value for clock enables */
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sys1_w32(~0x0c000040, clkclr);
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/* reset SUBSYS (incl. DDR2) and CPU0 */
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sys1_w32(0x00030001, rbtr);
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}
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for (;;)
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;
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}
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static void ltq_machine_halt(void)
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{
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printk(KERN_NOTICE "System halted.\n");
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local_irq_disable();
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for (;;)
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;
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}
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static void ltq_machine_power_off(void)
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{
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printk(KERN_NOTICE "Please turn off the power now.\n");
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local_irq_disable();
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for (;;)
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;
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}
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/* This function is used by the watchdog driver */
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int ltq_reset_cause(void)
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{
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return 0;
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}
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EXPORT_SYMBOL_GPL(ltq_reset_cause);
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static int __init mips_reboot_setup(void)
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{
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_machine_restart = ltq_machine_restart;
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_machine_halt = ltq_machine_halt;
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pm_power_off = ltq_machine_power_off;
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return 0;
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}
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arch_initcall(mips_reboot_setup);
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