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authorRob Herring <rob.herring@calxeda.com>2013-10-04 08:40:03 -0500
committerTom Rini <trini@ti.com>2013-11-04 11:05:58 -0500
commit2108f4c4a302a021a8807a7baac16dd680a8f3d0 (patch)
tree4dd786ebb44f815e08fafc765bba42ba51a424d5
parent0defddc851edfc34bcf3c3379fe74b11dc01a493 (diff)
config: consolidate CONFIG_SYS_HZ definition
According to the README, CONFIG_SYS_HZ must be 1000 and most platforms follow that. In preparation to remove CONFIG_SYS_HZ from all these platforms, provide a common definition. The platforms which use a value other than 1000 will get build warning now. These configs are: include/configs/M5271EVB.h:#define CONFIG_SYS_HZ 1000000 include/configs/balloon3.h:#define CONFIG_SYS_HZ 3250000 /* Timer @ 3250000 Hz */ include/configs/idmr.h:#define CONFIG_SYS_HZ (50000000 / 64) include/configs/mini2440.h:#define CONFIG_SYS_HZ 1562500 include/configs/mx1ads.h:#define CONFIG_SYS_HZ 3686400 include/configs/omap3_zoom2.h:#define CONFIG_SYS_HZ ((V_SCLK) / (2 << CONFIG_SYS_PTV)) include/configs/omap730p2.h:#define CONFIG_SYS_HZ ((CONFIG_SYS_CLK_FREQ)/(2 << CONFIG_SYS_PTV)) include/configs/palmld.h:#define CONFIG_SYS_HZ 3250000 /* Timer @ 3250000 Hz */ include/configs/palmtc.h:#define CONFIG_SYS_HZ 3686400 /* Timer @ 3686400 Hz */ include/configs/rsk7203.h:#define CONFIG_SYS_HZ (CONFIG_SYS_CLK_FREQ / CMT_CLK_DIVIDER) include/configs/rsk7264.h:#define CONFIG_SYS_HZ (CONFIG_SYS_CLK_FREQ / CMT_CLK_DIVIDER) include/configs/rsk7269.h:#define CONFIG_SYS_HZ (CONFIG_SYS_CLK_FREQ / CMT_CLK_DIVIDER) include/configs/scb9328.h:#define CONFIG_SYS_HZ 3686400 /* incrementer freq: 3.6864 MHz */ include/configs/versatile.h:#define CONFIG_SYS_HZ (1000000 / 256) include/configs/zipitz2.h:#define CONFIG_SYS_HZ 3250000 /* Timer @ 3250000 Hz */ Signed-off-by: Rob Herring <rob.herring@calxeda.com>
-rw-r--r--include/config_fallbacks.h4
-rw-r--r--lib/time.c4
2 files changed, 8 insertions, 0 deletions
diff --git a/include/config_fallbacks.h b/include/config_fallbacks.h
index 81cbad44320..46dfccb82e0 100644
--- a/include/config_fallbacks.h
+++ b/include/config_fallbacks.h
@@ -57,4 +57,8 @@
#define CONFIG_SYS_PROMPT "=> "
#endif
+#ifndef CONFIG_SYS_HZ
+#define CONFIG_SYS_HZ 1000
+#endif
+
#endif /* __CONFIG_FALLBACKS_H */
diff --git a/lib/time.c b/lib/time.c
index 68b8ff41907..6514835df78 100644
--- a/lib/time.c
+++ b/lib/time.c
@@ -8,6 +8,10 @@
#include <common.h>
#include <watchdog.h>
+#if CONFIG_SYS_HZ != 1000
+#warning "CONFIG_SYS_HZ must be 1000 and should not be defined by platforms"
+#endif
+
#ifndef CONFIG_WD_PERIOD
# define CONFIG_WD_PERIOD (10 * 1000 * 1000) /* 10 seconds default*/
#endif