This fix a clock inaccuracy in get_time_ns (used by sleep, time, etc).
At i.MX53 power-on GPT clock is typically 55500000 Hz, and it will be used
to calc the clock multiplier. After call imx53_init_lowlevel() GPT clock
will
changed (e.g. to 66666666 Hz), but multiplier not. To fix this behavior call
clock_notifier_call_chain() after changing clock in imx53_init_lowlevel().
Signed-off-by: Wjatscheslaw Stoljarski
<wjatscheslaw.stoljar...@kiwigrid.com>
---
arch/arm/mach-imx/imx53.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-imx/imx53.c b/arch/arm/mach-imx/imx53.c
index e20b60a..3359819 100644
--- a/arch/arm/mach-imx/imx53.c
+++ b/arch/arm/mach-imx/imx53.c
@@ -18,6 +18,7 @@
#include <init.h>
#include <common.h>
#include <io.h>
+#include <notifier.h>
#include <sizes.h>
#include <mach/imx5.h>
#include <mach/imx-regs.h>
@@ -211,4 +212,6 @@ void imx53_init_lowlevel(unsigned int cpufreq_mhz)
writel(0xffffffff, ccm + MX53_CCM_CCGR7);
writel(0, ccm + MX5_CCM_CCDR);
+
+ clock_notifier_call_chain();
}
--
1.7.9.5
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