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authorBo Shen <voice.shen@atmel.com>2015-02-04 15:53:01 +0800
committerAndreas Bießmann <andreas.devel@googlemail.com>2015-04-01 01:04:26 +0200
commita02c8a31bd34d0f771503783c7e4221e37ebd6d6 (patch)
tree876f70263ab6cc52149fe0669e130f9923ac4117 /arch
parent02fc64d1d98be7801e6b21dbf0d67555b0e05213 (diff)
ARM: atmel: arm9: switch to use common timer functions
Signed-off-by: Bo Shen <voice.shen@atmel.com> [rebase on current master] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-at91/arm926ejs/timer.c59
-rw-r--r--arch/arm/mach-at91/include/mach/at91sam9260.h3
-rw-r--r--arch/arm/mach-at91/include/mach/at91sam9261.h3
-rw-r--r--arch/arm/mach-at91/include/mach/at91sam9263.h3
-rw-r--r--arch/arm/mach-at91/include/mach/at91sam9g45.h3
-rw-r--r--arch/arm/mach-at91/include/mach/at91sam9rl.h3
-rw-r--r--arch/arm/mach-at91/include/mach/at91sam9x5.h3
7 files changed, 18 insertions, 59 deletions
diff --git a/arch/arm/mach-at91/arm926ejs/timer.c b/arch/arm/mach-at91/arm926ejs/timer.c
index b0b7fb93fb..31ce646260 100644
--- a/arch/arm/mach-at91/arm926ejs/timer.c
+++ b/arch/arm/mach-at91/arm926ejs/timer.c
@@ -33,22 +33,6 @@ DECLARE_GLOBAL_DATA_PTR;
#define TIMER_LOAD_VAL 0xfffff
-static inline unsigned long long tick_to_time(unsigned long long tick)
-{
- tick *= CONFIG_SYS_HZ;
- do_div(tick, gd->arch.timer_rate_hz);
-
- return tick;
-}
-
-static inline unsigned long long usec_to_tick(unsigned long long usec)
-{
- usec *= gd->arch.timer_rate_hz;
- do_div(usec, 1000000);
-
- return usec;
-}
-
/*
* Use the PITC in full 32 bit incrementing mode
*/
@@ -64,54 +48,11 @@ int timer_init(void)
writel(TIMER_LOAD_VAL | AT91_PIT_MR_EN , &pit->mr);
gd->arch.timer_rate_hz = gd->arch.mck_rate_hz / 16;
- gd->arch.tbu = gd->arch.tbl = 0;
return 0;
}
/*
- * Get the current 64 bit timer tick count
- */
-unsigned long long get_ticks(void)
-{
- at91_pit_t *pit = (at91_pit_t *) ATMEL_BASE_PIT;
-
- ulong now = readl(&pit->piir);
-
- /* increment tbu if tbl has rolled over */
- if (now < gd->arch.tbl)
- gd->arch.tbu++;
- gd->arch.tbl = now;
- return (((unsigned long long)gd->arch.tbu) << 32) | gd->arch.tbl;
-}
-
-void __udelay(unsigned long usec)
-{
- unsigned long long start;
- ulong tmo;
-
- start = get_ticks(); /* get current timestamp */
- tmo = usec_to_tick(usec); /* convert usecs to ticks */
- while ((get_ticks() - start) < tmo)
- ; /* loop till time has passed */
-}
-
-/*
- * get_timer(base) can be used to check for timeouts or
- * to measure elasped time relative to an event:
- *
- * ulong start_time = get_timer(0) sets start_time to the current
- * time value.
- * get_timer(start_time) returns the time elapsed since then.
- *
- * The time is used in CONFIG_SYS_HZ units!
- */
-ulong get_timer(ulong base)
-{
- return tick_to_time(get_ticks()) - base;
-}
-
-/*
* Return the number of timer ticks per second.
*/
ulong get_tbclk(void)
diff --git a/arch/arm/mach-at91/include/mach/at91sam9260.h b/arch/arm/mach-at91/include/mach/at91sam9260.h
index 8950d67409..1a4e84b050 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9260.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9260.h
@@ -133,6 +133,9 @@
#define ATMEL_BASE_CS6 0x70000000
#define ATMEL_BASE_CS7 0x80000000
+/* Timer */
+#define CONFIG_SYS_TIMER_COUNTER 0xfffffd3c
+
/*
* Other misc defines
*/
diff --git a/arch/arm/mach-at91/include/mach/at91sam9261.h b/arch/arm/mach-at91/include/mach/at91sam9261.h
index 6dfcf4c0c8..914a3b0460 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9261.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9261.h
@@ -117,6 +117,9 @@
#define ATMEL_BASE_CS6 0x70000000
#define ATMEL_BASE_CS7 0x80000000
+/* Timer */
+#define CONFIG_SYS_TIMER_COUNTER 0xfffffd3c
+
/*
* Other misc defines
*/
diff --git a/arch/arm/mach-at91/include/mach/at91sam9263.h b/arch/arm/mach-at91/include/mach/at91sam9263.h
index 64a3888e22..71675abf82 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9263.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9263.h
@@ -132,6 +132,9 @@
#define ATMEL_BASE_CS6 0x70000000
#define ATMEL_BASE_CS7 0x80000000
+/* Timer */
+#define CONFIG_SYS_TIMER_COUNTER 0xfffffd3c
+
/*
* Other misc defines
*/
diff --git a/arch/arm/mach-at91/include/mach/at91sam9g45.h b/arch/arm/mach-at91/include/mach/at91sam9g45.h
index 6df8cdb56d..cf1c73f3d9 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9g45.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9g45.h
@@ -136,6 +136,9 @@
#define ATMEL_BASE_CS6 0x70000000
#define ATMEL_BASE_CS7 0x80000000
+/* Timer */
+#define CONFIG_SYS_TIMER_COUNTER 0xfffffd3c
+
/*
* Other misc defines
*/
diff --git a/arch/arm/mach-at91/include/mach/at91sam9rl.h b/arch/arm/mach-at91/include/mach/at91sam9rl.h
index 3a8e6d62ce..70bbf4edaa 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9rl.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9rl.h
@@ -116,6 +116,9 @@
#define ATMEL_BASE_CS4 0x50000000 /* Compact Flash Slot 0 */
#define ATMEL_BASE_CS5 0x60000000 /* Compact Flash Slot 1 */
+/* Timer */
+#define CONFIG_SYS_TIMER_COUNTER 0xfffffd3c
+
/*
* Other misc defines
*/
diff --git a/arch/arm/mach-at91/include/mach/at91sam9x5.h b/arch/arm/mach-at91/include/mach/at91sam9x5.h
index 36a5cdf476..7e7b5312cf 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9x5.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9x5.h
@@ -154,6 +154,9 @@
#define ATMEL_CPU_NAME get_cpu_name()
#endif
+/* Timer */
+#define CONFIG_SYS_TIMER_COUNTER 0xfffffe3c
+
/*
* Other misc defines
*/