diff options
Diffstat (limited to 'kernel/arch/mips/jz4740/reset.c')
| -rw-r--r-- | kernel/arch/mips/jz4740/reset.c | 13 |
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 |