diff options
Diffstat (limited to 'include/asm-arm/arch-s3c2410/system.h')
| -rw-r--r-- | include/asm-arm/arch-s3c2410/system.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/include/asm-arm/arch-s3c2410/system.h b/include/asm-arm/arch-s3c2410/system.h deleted file mode 100644 index 9b0d85024cb..00000000000 --- a/include/asm-arm/arch-s3c2410/system.h +++ /dev/null @@ -1,90 +0,0 @@ -/* linux/include/asm-arm/arch-s3c2410/system.h - * - * (c) 2003 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * S3C2410 - System function defines and includes - * - * 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. - * - * Changelog: - * 12-May-2003 BJD Created file - * 14-May-2003 BJD Removed idle to aid debugging - * 12-Jun-2003 BJD Added reset via watchdog - * 04-Sep-2003 BJD Moved to v2.6 - * 28-Oct-2004 BJD Added over-ride for idle, and fixed reset panic() - */ - -#include <asm/hardware.h> -#include <asm/io.h> - -#include <asm/arch/map.h> -#include <asm/arch/idle.h> - -#include <asm/arch/regs-watchdog.h> -#include <asm/arch/regs-clock.h> - -void (*s3c24xx_idle)(void); - -void s3c24xx_default_idle(void) -{ - void __iomem *reg = S3C2410_CLKCON; - unsigned long tmp; - int i; - - /* idle the system by using the idle mode which will wait for an - * interrupt to happen before restarting the system. - */ - - /* Warning: going into idle state upsets jtag scanning */ - - __raw_writel(__raw_readl(reg) | (1<<2), reg); - - /* the samsung port seems to do a loop and then unset idle.. */ - for (i = 0; i < 50; i++) { - tmp += __raw_readl(reg); /* ensure loop not optimised out */ - } - - /* this bit is not cleared on re-start... */ - - __raw_writel(__raw_readl(reg) & ~(1<<2), reg); -} - -static void arch_idle(void) -{ - if (s3c24xx_idle != NULL) - (s3c24xx_idle)(); - else - s3c24xx_default_idle(); -} - - -static void -arch_reset(char mode) -{ - if (mode == 's') { - cpu_reset(0); - } - - printk("arch_reset: attempting watchdog reset\n"); - - __raw_writel(0, S3C2410_WTCON); /* disable watchdog, to be safe */ - - /* put initial values into count and data */ - __raw_writel(0x100, S3C2410_WTCNT); - __raw_writel(0x100, S3C2410_WTDAT); - - /* set the watchdog to go and reset... */ - __raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN | - S3C2410_WTCON_PRESCALE(0x80), S3C2410_WTCON); - - /* wait for reset to assert... */ - mdelay(5000); - - printk(KERN_ERR "Watchdog reset failed to assert reset\n"); - - /* we'll take a jump through zero as a poor second */ - cpu_reset(0); -} |