From: Rob Herring rob.herring@calxeda.com
Convert vexpress to use the commmon timer code.
Signed-off-by: Rob Herring rob.herring@calxeda.com --- board/armltd/vexpress/vexpress_common.c | 71 --------------------------------- include/configs/vexpress_common.h | 4 ++ 2 files changed, 4 insertions(+), 71 deletions(-)
diff --git a/board/armltd/vexpress/vexpress_common.c b/board/armltd/vexpress/vexpress_common.c index 4c7a7f4..25438fb 100644 --- a/board/armltd/vexpress/vexpress_common.c +++ b/board/armltd/vexpress/vexpress_common.c @@ -26,9 +26,6 @@ #include <asm/arch/wdt.h> #include "../drivers/mmc/arm_pl180_mmci.h"
-static ulong timestamp; -static ulong lastdec; - static struct systimer *systimer_base = (struct systimer *)V2M_TIMER01; static struct sysctrl *sysctrl_base = (struct sysctrl *)SCTL_BASE;
@@ -152,8 +149,6 @@ static void vexpress_timer_init(void) writel(SYSTIMER_EN | SYSTIMER_32BIT | readl(&systimer_base->timer0control), &systimer_base->timer0control); - - reset_timer_masked(); }
int v2m_cfg_write(u32 devfn, u32 data) @@ -183,62 +178,6 @@ void reset_cpu(ulong addr) printf("Unable to reboot\n"); }
-/* - * Delay x useconds AND perserve advance timstamp value - * assumes timer is ticking at 1 msec - */ -void __udelay(ulong usec) -{ - ulong tmo, tmp; - - tmo = usec / 1000; - tmp = get_timer(0); /* get current timestamp */ - - /* - * If setting this forward will roll time stamp then - * reset "advancing" timestamp to 0 and set lastdec value - * otherwise set the advancing stamp to the wake up time - */ - if ((tmo + tmp + 1) < tmp) - reset_timer_masked(); - else - tmo += tmp; - - while (get_timer_masked() < tmo) - ; /* loop till wakeup event */ -} - -ulong get_timer(ulong base) -{ - return get_timer_masked() - base; -} - -void reset_timer_masked(void) -{ - lastdec = readl(&systimer_base->timer0value) / 1000; - timestamp = 0; -} - -ulong get_timer_masked(void) -{ - ulong now = readl(&systimer_base->timer0value) / 1000; - - if (lastdec >= now) { /* normal mode (non roll) */ - timestamp += lastdec - now; - } else { /* count down timer overflowed */ - /* - * nts = ts + ld - now - * ts = old stamp, ld = time before passing through - 1 - * now = amount of time after passing though - 1 - * nts = new "advancing time stamp" - */ - timestamp += lastdec + SYSTIMER_RELOAD - now; - } - lastdec = now; - - return timestamp; -} - void lowlevel_init(void) { } @@ -246,13 +185,3 @@ void lowlevel_init(void) ulong get_board_rev(void){ return readl((u32 *)SYS_ID); } - -unsigned long long get_ticks(void) -{ - return get_timer(0); -} - -ulong get_tbclk(void) -{ - return (ulong)CONFIG_SYS_HZ; -} diff --git a/include/configs/vexpress_common.h b/include/configs/vexpress_common.h index 5b0721c..f204551 100644 --- a/include/configs/vexpress_common.h +++ b/include/configs/vexpress_common.h @@ -131,6 +131,10 @@ #define SCTL_BASE V2M_SYSCTL #define VEXPRESS_FLASHPROG_FLVPPEN (1 << 0)
+#define CONFIG_SYS_TIMER_RATE 1000000 +#define CONFIG_SYS_TIMER_COUNTER (0x10011000 + 0x4) +#define CONFIG_SYS_TIMER_COUNTS_DOWN + /* SMSC9115 Ethernet from SMSC9118 family */ #define CONFIG_SMC911X 1 #define CONFIG_SMC911X_32_BIT 1