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Diffstat (limited to 'kernel/arch/mips/jz4740/reset.c')
-rw-r--r--kernel/arch/mips/jz4740/reset.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/arch/mips/jz4740/reset.c b/kernel/arch/mips/jz4740/reset.c
index b6c6343d2..954e669c9 100644
--- a/kernel/arch/mips/jz4740/reset.c
+++ b/kernel/arch/mips/jz4740/reset.c
@@ -12,6 +12,7 @@
*
*/
+#include <linux/clk.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/pm.h>
@@ -79,12 +80,20 @@ static void jz4740_power_off(void)
void __iomem *rtc_base = ioremap(JZ4740_RTC_BASE_ADDR, 0x38);
unsigned long wakeup_filter_ticks;
unsigned long reset_counter_ticks;
+ struct clk *rtc_clk;
+ unsigned long rtc_rate;
+
+ rtc_clk = clk_get(NULL, "rtc");
+ if (IS_ERR(rtc_clk))
+ panic("unable to get RTC clock");
+ rtc_rate = clk_get_rate(rtc_clk);
+ clk_put(rtc_clk);
/*
* Set minimum wakeup pin assertion time: 100 ms.
* Range is 0 to 2 sec if RTC is clocked at 32 kHz.
*/
- wakeup_filter_ticks = (100 * jz4740_clock_bdata.rtc_rate) / 1000;
+ wakeup_filter_ticks = (100 * rtc_rate) / 1000;
if (wakeup_filter_ticks < JZ_RTC_WAKEUP_FILTER_MASK)
wakeup_filter_ticks &= JZ_RTC_WAKEUP_FILTER_MASK;
else
@@ -96,7 +105,7 @@ static void jz4740_power_off(void)
* Set reset pin low-level assertion time after wakeup: 60 ms.
* Range is 0 to 125 ms if RTC is clocked at 32 kHz.
*/
- reset_counter_ticks = (60 * jz4740_clock_bdata.rtc_rate) / 1000;
+ reset_counter_ticks = (60 * rtc_rate) / 1000;
if (reset_counter_ticks < JZ_RTC_RESET_COUNTER_MASK)
reset_counter_ticks &= JZ_RTC_RESET_COUNTER_MASK;
else