diff options
Diffstat (limited to 'arch/arm/mach-ixp4xx/common.c')
| -rw-r--r-- | arch/arm/mach-ixp4xx/common.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index b86a0055ab9..3841ab4146b 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -17,7 +17,6 @@ #include <linux/mm.h> #include <linux/init.h> #include <linux/serial.h> -#include <linux/sched.h> #include <linux/tty.h> #include <linux/platform_device.h> #include <linux/serial_core.h> @@ -403,18 +402,9 @@ void __init ixp4xx_sys_init(void) /* * sched_clock() */ -static DEFINE_CLOCK_DATA(cd); - -unsigned long long notrace sched_clock(void) -{ - u32 cyc = *IXP4XX_OSTS; - return cyc_to_sched_clock(&cd, cyc, (u32)~0); -} - -static void notrace ixp4xx_update_sched_clock(void) +static u32 notrace ixp4xx_read_sched_clock(void) { - u32 cyc = *IXP4XX_OSTS; - update_sched_clock(&cd, cyc, (u32)~0); + return *IXP4XX_OSTS; } /* @@ -430,7 +420,7 @@ unsigned long ixp4xx_timer_freq = IXP4XX_TIMER_FREQ; EXPORT_SYMBOL(ixp4xx_timer_freq); static void __init ixp4xx_clocksource_init(void) { - init_sched_clock(&cd, ixp4xx_update_sched_clock, 32, ixp4xx_timer_freq); + setup_sched_clock(ixp4xx_read_sched_clock, 32, ixp4xx_timer_freq); clocksource_mmio_init(NULL, "OSTS", ixp4xx_timer_freq, 200, 32, ixp4xx_clocksource_read); @@ -501,3 +491,23 @@ static void __init ixp4xx_clockevent_init(void) clockevents_register_device(&clockevent_ixp4xx); } + +void ixp4xx_restart(char mode, const char *cmd) +{ + if ( 1 && mode == 's') { + /* Jump into ROM at address 0 */ + soft_restart(0); + } else { + /* Use on-chip reset capability */ + + /* set the "key" register to enable access to + * "timer" and "enable" registers + */ + *IXP4XX_OSWK = IXP4XX_WDT_KEY; + + /* write 0 to the timer register for an immediate reset */ + *IXP4XX_OSWT = 0; + + *IXP4XX_OSWE = IXP4XX_WDT_RESET_ENABLE | IXP4XX_WDT_COUNT_ENABLE; + } +} |