Merge xburst target.

[openwrt/svn-archive/archive.git] / target / linux / xburst / files-2.6.32 / arch / mips / jz4740 / reset.c

diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/reset.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/reset.c
new file mode 100644 (file)
index 0000000..a4b2292
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/reset.c
@@ -0,0 +1,50 @@
+/*
+ * linux/arch/mips/jz4740/reset.c
+ *
+ * JZ4740 reset routines.
+ *
+ * Copyright (c) 2006-2007  Ingenic Semiconductor Inc.
+ * Author: <yliu@ingenic.cn>
+ *
+ * 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.
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/mach-jz4740/regs.h>
+#include <asm/mach-jz4740/timer.h>
+#include <asm/mach-jz4740/jz4740.h>
+
+void jz_restart(char *command)
+{
+       printk(KERN_NOTICE "Restarting after 4 ms\n");
+       REG_WDT_TCSR = WDT_TCSR_PRESCALE4 | WDT_TCSR_EXT_EN;
+       REG_WDT_TCNT = 0;
+       REG_WDT_TDR = JZ_EXTAL/1000;   /* reset after 4ms */
+       jz4740_timer_enable_watchdog();
+       REG_WDT_TCER = WDT_TCER_TCEN;  /* wdt start */
+       while (1);
+}
+
+void jz_halt(void)
+{
+       /* Put CPU to power down mode */
+       while (!(REG_RTC_RCR & RTC_RCR_WRDY));
+       REG_RTC_HCR = RTC_HCR_PD;
+
+       while (1)
+               __asm__(".set\tmips3\n\t"
+                       "wait\n\t"
+                       ".set\tmips0");
+}
+
+void jz_power_off(void)
+{
+       jz_halt();
+}