diff options
| -rw-r--r-- | arch/x86/platform/mrst/mrst.c | 2 | ||||
| -rw-r--r-- | arch/x86/platform/mrst/vrtc.c | 16 | ||||
| -rw-r--r-- | drivers/rtc/rtc-mrst.c | 13 |
3 files changed, 18 insertions, 13 deletions
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c index fee0b4914e07..4c542c757cb4 100644 --- a/arch/x86/platform/mrst/mrst.c +++ b/arch/x86/platform/mrst/mrst.c @@ -31,6 +31,7 @@ #include <asm/apic.h> #include <asm/io_apic.h> #include <asm/mrst.h> +#include <asm/mrst-vrtc.h> #include <asm/io.h> #include <asm/i8259.h> #include <asm/intel_scu_ipc.h> @@ -294,6 +295,7 @@ void __init x86_mrst_early_setup(void) x86_platform.calibrate_tsc = mrst_calibrate_tsc; x86_platform.i8042_detect = mrst_i8042_detect; + x86_init.timers.wallclock_init = mrst_rtc_init; x86_init.pci.init = pci_mrst_init; x86_init.pci.fixup_irqs = x86_init_noop; diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c index 32cd7edd71a0..04cf645feb92 100644 --- a/arch/x86/platform/mrst/vrtc.c +++ b/arch/x86/platform/mrst/vrtc.c @@ -100,22 +100,14 @@ int vrtc_set_mmss(unsigned long nowtime) void __init mrst_rtc_init(void) { - unsigned long rtc_paddr; - void __iomem *virt_base; + unsigned long vrtc_paddr = sfi_mrtc_array[0].phys_addr; sfi_table_parse(SFI_SIG_MRTC, NULL, NULL, sfi_parse_mrtc); - if (!sfi_mrtc_num) + if (!sfi_mrtc_num || !vrtc_paddr) return; - rtc_paddr = sfi_mrtc_array[0].phys_addr; - - /* vRTC's register address may not be page aligned */ - set_fixmap_nocache(FIX_LNW_VRTC, rtc_paddr); - - virt_base = (void __iomem *)__fix_to_virt(FIX_LNW_VRTC); - virt_base += rtc_paddr & ~PAGE_MASK; - vrtc_virt_base = virt_base; - + vrtc_virt_base = (void __iomem *)set_fixmap_offset_nocache(FIX_LNW_VRTC, + vrtc_paddr); x86_platform.get_wallclock = vrtc_get_time; x86_platform.set_wallclock = vrtc_set_mmss; } diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index bcd0cf63eb16..28e02e7580f4 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -62,6 +62,17 @@ static inline int is_intr(u8 rtc_intr) return rtc_intr & RTC_IRQMASK; } +static inline unsigned char vrtc_is_updating(void) +{ + unsigned char uip; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + uip = (vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP); + spin_unlock_irqrestore(&rtc_lock, flags); + return uip; +} + /* * rtc_time's year contains the increment over 1900, but vRTC's YEAR * register can't be programmed to value larger than 0x64, so vRTC @@ -76,7 +87,7 @@ static int mrst_read_time(struct device *dev, struct rtc_time *time) { unsigned long flags; - if (rtc_is_updating()) + if (vrtc_is_updating()) mdelay(20); spin_lock_irqsave(&rtc_lock, flags); |