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| author | Sammy He <r62914@freescale.com> | 2009-11-16 11:59:54 +0800 |
|---|---|---|
| committer | Sammy He <r62914@freescale.com> | 2009-11-20 17:14:44 +0800 |
| commit | 1701c3caa7ed7d183a57301f6513c1f5fb4102cd (patch) | |
| tree | 6146e2b73d560b8b5225047cc922b6ce6fd2037d /cpu/arm926ejs/mx25/timer.c | |
| parent | cbee64d544a2bd8b5e2ae17bcfdfe79480690292 (diff) | |
| download | u-boot-imx-1701c3caa7ed7d183a57301f6513c1f5fb4102cd.zip u-boot-imx-1701c3caa7ed7d183a57301f6513c1f5fb4102cd.tar.gz u-boot-imx-1701c3caa7ed7d183a57301f6513c1f5fb4102cd.tar.bz2 | |
ENGR00118576 MX25: Support Smc911x ethernet
1. Add imx cspi support for cpld access.
2. Add smc911x ethernet support from cpld.
Signed-off-by: Sammy He <r62914@freescale.com>
Diffstat (limited to 'cpu/arm926ejs/mx25/timer.c')
| -rw-r--r-- | cpu/arm926ejs/mx25/timer.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/cpu/arm926ejs/mx25/timer.c b/cpu/arm926ejs/mx25/timer.c index 8b6a061..1900240 100644 --- a/cpu/arm926ejs/mx25/timer.c +++ b/cpu/arm926ejs/mx25/timer.c @@ -84,15 +84,10 @@ void reset_timer(void) ulong get_timer_masked(void) { - ulong now = GPTCNT; /* current tick value */ - - if (now >= lastinc) /* normal mode (non roll) */ - /* move stamp forward with absolut diff ticks */ - timestamp += (now - lastinc); - else /* we have rollover of incrementer */ - timestamp += (0xFFFFFFFF - lastinc) + now; - lastinc = now; - return timestamp; + ulong now = GPTCNT; + now = now * 1000 / CONFIG_SYS_HZ; /* current tick value */ + + return now; } ulong get_timer(ulong base) @@ -111,14 +106,7 @@ void udelay(unsigned long usec) setup_gpt(); - if (usec >= 1000) { /* if "big" number, spread normalize to secs */ - tmo = usec / 1000; /* normalize usec to ticks per sec */ - tmo *= CONFIG_SYS_HZ; /* find number of "ticks" to wait */ - tmo /= 1000; /* finish normalize. */ - } else { /* don't kill prior to HZ multiply */ - tmo = usec * CONFIG_SYS_HZ; - tmo /= (1000*1000); - } + tmo = usec / 1000; /* Current precision is Millisecond */ tmp = get_timer(0); /* get current timestamp */ if ((tmo + tmp + 1) < tmp) /* if overflow time stamp */ |