[U-Boot] [PATCH] pxa: fixing get_timer to return time in miliseconds.

Micha Kalfon smichak.uv at gmail.com
Wed Feb 11 18:50:11 CET 2009


Fixing the get_timer function to return time in miliseconds instead of
ticks. Also fixed PXA boards to use the conventional value of 1000 for
CONFIG_SYS_HZ.

Signed-off-by: Micha Kalfon <smichak.uv at gmail.com>
---
 cpu/pxa/interrupts.c         |   25 ++++++++++++++++++-------
 include/configs/cerf250.h    |    2 +-
 include/configs/cradle.h     |    2 +-
 include/configs/csb226.h     |    2 +-
 include/configs/delta.h      |    2 +-
 include/configs/innokom.h    |    2 +-
 include/configs/logodl.h     |    2 +-
 include/configs/lubbock.h    |    2 +-
 include/configs/pleb2.h      |    2 +-
 include/configs/pxa255_idp.h |    2 +-
 include/configs/trizepsiv.h  |    2 +-
 include/configs/wepep250.h   |    2 +-
 include/configs/xaeniax.h    |    2 +-
 include/configs/xm250.h      |    2 +-
 include/configs/xsengine.h   |    5 +----
 include/configs/zylonite.h   |    2 +-
 16 files changed, 33 insertions(+), 25 deletions(-)

diff --git a/cpu/pxa/interrupts.c b/cpu/pxa/interrupts.c
index ec8fb9e..40d8bf2 100644
--- a/cpu/pxa/interrupts.c
+++ b/cpu/pxa/interrupts.c
@@ -33,6 +33,14 @@
 #error: interrupts not implemented yet
 #endif
 
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+#define TIMER_FREQ_HZ 3250000
+#elif defined(CONFIG_PXA250)
+#define TIMER_FREQ_HZ 3686400
+#else
+#error "Timer frequency unknown - please config PXA CPU type"
+#endif
+
 int interrupt_init (void)
 {
 	/* nothing happens here - we don't setup any IRQs */
@@ -67,7 +75,10 @@ void reset_timer_masked (void)
 
 ulong get_timer_masked (void)
 {
-	return OSCR;
+	unsigned long long ticks = get_ticks();
+
+	return (((ticks / TIMER_FREQ_HZ) * 1000) +
+	        ((ticks % TIMER_FREQ_HZ) * 1000) / TIMER_FREQ_HZ);
 }
 
 void udelay_masked (unsigned long usec)
@@ -78,17 +89,17 @@ void udelay_masked (unsigned long usec)
 
 	if (usec >= 1000) {
 		tmo = usec / 1000;
-		tmo *= CONFIG_SYS_HZ;
+		tmo *= TIMER_FREQ_HZ;
 		tmo /= 1000;
 	} else {
-		tmo = usec * CONFIG_SYS_HZ;
+		tmo = usec * TIMER_FREQ_HZ;
 		tmo /= (1000*1000);
 	}
 
-	endtime = get_timer_masked () + tmo;
+	endtime = get_ticks() + tmo;
 
 	do {
-		ulong now = get_timer_masked ();
+		ulong now = get_ticks();
 		diff = endtime - now;
 	} while (diff >= 0);
 }
@@ -99,7 +110,7 @@ void udelay_masked (unsigned long usec)
  */
 unsigned long long get_ticks(void)
 {
-	return get_timer(0);
+	return OSCR;
 }
 
 /*
@@ -109,6 +120,6 @@ unsigned long long get_ticks(void)
 ulong get_tbclk (void)
 {
 	ulong tbclk;
-	tbclk = CONFIG_SYS_HZ;
+	tbclk = TIMER_FREQ_HZ;
 	return tbclk;
 }
diff --git a/include/configs/cerf250.h b/include/configs/cerf250.h
index 71e5b58..f19374e 100644
--- a/include/configs/cerf250.h
+++ b/include/configs/cerf250.h
@@ -117,7 +117,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0xa2000000	/* default load address */
 
-#define CONFIG_SYS_HZ				3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x141		/* set core clock to 400/200/100 MHz */
 
 #define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
diff --git a/include/configs/cradle.h b/include/configs/cradle.h
index e80504a..5131175 100644
--- a/include/configs/cradle.h
+++ b/include/configs/cradle.h
@@ -103,7 +103,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR           0xa2000000      /* default load address */
 
-#define CONFIG_SYS_HZ                  3686400         /* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED            0x141           /* set core clock to 200/200/100 MHz */
 
 						/* valid baudrates */
diff --git a/include/configs/csb226.h b/include/configs/csb226.h
index a24e34a..8da7c90 100644
--- a/include/configs/csb226.h
+++ b/include/configs/csb226.h
@@ -131,7 +131,7 @@
 						/* RS: is this where U-Boot is  */
 						/* RS: relocated to in RAM?      */
 
-#define CONFIG_SYS_HZ                  3686400         /* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 						/* RS: the oscillator is actually 3680130?? */
 #define CONFIG_SYS_CPUSPEED            0x141           /* set core clock to 200/200/100 MHz */
 						/* 0101000001 */
diff --git a/include/configs/delta.h b/include/configs/delta.h
index abb2676..67736da 100644
--- a/include/configs/delta.h
+++ b/include/configs/delta.h
@@ -171,7 +171,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR	(CONFIG_SYS_DRAM_BASE + 0x8000) /* default load address */
 
-#define CONFIG_SYS_HZ			3250000		/* incrementer freq: 3.25 MHz */
+#define CONFIG_SYS_HZ			1000
 
 /* Monahans Core Frequency */
 #define CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO		16 /* valid values: 8, 16, 24, 31 */
diff --git a/include/configs/innokom.h b/include/configs/innokom.h
index 1b05b80..cdab2f3 100644
--- a/include/configs/innokom.h
+++ b/include/configs/innokom.h
@@ -119,7 +119,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR           0xa3000000      /* load kernel to this address   */
 
-#define CONFIG_SYS_HZ                  3686400         /* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 						/* RS: the oscillator is actually 3680130?? */
 
 #define CONFIG_SYS_CPUSPEED            0x141           /* set core clock to 200/200/100 MHz */
diff --git a/include/configs/logodl.h b/include/configs/logodl.h
index bb6f943..112806d 100644
--- a/include/configs/logodl.h
+++ b/include/configs/logodl.h
@@ -112,7 +112,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR           0x08000000      /* load kernel to this address   */
 
-#define CONFIG_SYS_HZ                  3686400         /* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 						/* RS: the oscillator is actually 3680130?? */
 
 #define CONFIG_SYS_CPUSPEED            0x141           /* set core clock to 200/200/100 MHz */
diff --git a/include/configs/lubbock.h b/include/configs/lubbock.h
index 208910e..80cf44f 100644
--- a/include/configs/lubbock.h
+++ b/include/configs/lubbock.h
@@ -127,7 +127,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR	(CONFIG_SYS_DRAM_BASE + 0x8000) /* default load address */
 
-#define CONFIG_SYS_HZ			3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x161		/* set core clock to 400/200/100 MHz */
 
 						/* valid baudrates */
diff --git a/include/configs/pleb2.h b/include/configs/pleb2.h
index 14f8917..23398e3 100644
--- a/include/configs/pleb2.h
+++ b/include/configs/pleb2.h
@@ -126,7 +126,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0xa2000000	/* default load address */
 
-#define CONFIG_SYS_HZ			3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x141		/* set core clock to 200/200/100 MHz */
 
 						/* valid baudrates */
diff --git a/include/configs/pxa255_idp.h b/include/configs/pxa255_idp.h
index f81103b..fa53cf4 100644
--- a/include/configs/pxa255_idp.h
+++ b/include/configs/pxa255_idp.h
@@ -241,7 +241,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0xa0800000	/* default load address */
 
-#define CONFIG_SYS_HZ			3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x161		/* set core clock to 400/200/100 MHz */
 
 #define RTC	1				/* enable 32KHz osc */
diff --git a/include/configs/trizepsiv.h b/include/configs/trizepsiv.h
index 0a8e994..e124be4 100644
--- a/include/configs/trizepsiv.h
+++ b/include/configs/trizepsiv.h
@@ -168,7 +168,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0xa1000000	/* default load address */
 
-#define CONFIG_SYS_HZ			3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x207		/* need to look more closely, I think this is Turbo = 2x, L=91Mhz */
 
 						/* valid baudrates */
diff --git a/include/configs/wepep250.h b/include/configs/wepep250.h
index b70a531..d0afd29 100644
--- a/include/configs/wepep250.h
+++ b/include/configs/wepep250.h
@@ -81,7 +81,7 @@
 
 #undef  CONFIG_SYS_CLKS_IN_HZ                       /* use HZ for freq. display     */
 
-#define CONFIG_SYS_HZ                  3686400      /* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED            0x141        /* core clock - register value  */
 
 #define CONFIG_SYS_BAUDRATE_TABLE      { 9600, 19200, 38400, 57600, 115200 }
diff --git a/include/configs/xaeniax.h b/include/configs/xaeniax.h
index 324f03e..250247c 100644
--- a/include/configs/xaeniax.h
+++ b/include/configs/xaeniax.h
@@ -138,7 +138,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0xa1000000	/* default load address */
 
-#define CONFIG_SYS_HZ			3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x141		/* set core clock to 400/200/100 MHz */
 
 /*
diff --git a/include/configs/xm250.h b/include/configs/xm250.h
index 16af845..8e9d5ab 100644
--- a/include/configs/xm250.h
+++ b/include/configs/xm250.h
@@ -121,7 +121,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0xa3000000	/* default load address */
 
-#define CONFIG_SYS_HZ			3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x161		/* set core clock to 400/400/100 MHz */
 
 						/* valid baudrates */
diff --git a/include/configs/xsengine.h b/include/configs/xsengine.h
index b727413..2fca956 100644
--- a/include/configs/xsengine.h
+++ b/include/configs/xsengine.h
@@ -35,10 +35,7 @@
 #define CONFIG_DOS_PARTITION		1
 #define BOARD_LATE_INIT			1
 #undef  CONFIG_USE_IRQ					/* we don't need IRQ/FIQ stuff */
-#define CONFIG_SYS_HZ				3686400		/* incrementer freq: 3.6864 MHz */
-
-#undef  CONFIG_USE_IRQ					/* we don't need IRQ/FIQ stuff */
-#define CONFIG_SYS_HZ				3686400		/* incrementer freq: 3.6864 MHz */
+#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED			0x161           /* set core clock to 400/200/100 MHz */
 
 #define CONFIG_NR_DRAM_BANKS		1		/* we have 1 bank of DRAM */
diff --git a/include/configs/zylonite.h b/include/configs/zylonite.h
index f30eca1..79b74ad 100644
--- a/include/configs/zylonite.h
+++ b/include/configs/zylonite.h
@@ -143,7 +143,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR	(CONFIG_SYS_DRAM_BASE + 0x8000) /* default load address */
 
-#define CONFIG_SYS_HZ			3250000		/* incrementer freq: 3.25 MHz */
+#define CONFIG_SYS_HZ			1000
 
 /* Monahans Core Frequency */
 #define CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO		16 /* valid values: 8, 16, 24, 31 */
-- 
1.6.0.6



More information about the U-Boot mailing list