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-rw-r--r--arch/sparc64/kernel/time.c37
-rw-r--r--drivers/sbus/char/rtc.c103
-rw-r--r--include/asm-sparc64/mostek.h6
3 files changed, 123 insertions, 23 deletions
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index 6a717d4d2bc..c60785c046b 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -48,7 +48,7 @@
DEFINE_SPINLOCK(mostek_lock);
DEFINE_SPINLOCK(rtc_lock);
-unsigned long mstk48t02_regs = 0UL;
+void * __iomem mstk48t02_regs = 0UL;
#ifdef CONFIG_PCI
unsigned long ds1287_regs = 0UL;
#endif
@@ -59,8 +59,8 @@ u64 jiffies_64 = INITIAL_JIFFIES;
EXPORT_SYMBOL(jiffies_64);
-static unsigned long mstk48t08_regs = 0UL;
-static unsigned long mstk48t59_regs = 0UL;
+static void * __iomem mstk48t08_regs;
+static void * __iomem mstk48t59_regs;
static int set_rtc_mmss(unsigned long);
@@ -520,7 +520,7 @@ void timer_tick_interrupt(struct pt_regs *regs)
/* Kick start a stopped clock (procedure from the Sun NVRAM/hostid FAQ). */
static void __init kick_start_clock(void)
{
- unsigned long regs = mstk48t02_regs;
+ void * __iomem regs = mstk48t02_regs;
u8 sec, tmp;
int i, count;
@@ -604,7 +604,7 @@ static void __init kick_start_clock(void)
/* Return nonzero if the clock chip battery is low. */
static int __init has_low_battery(void)
{
- unsigned long regs = mstk48t02_regs;
+ void * __iomem regs = mstk48t02_regs;
u8 data1, data2;
spin_lock_irq(&mostek_lock);
@@ -623,7 +623,7 @@ static int __init has_low_battery(void)
static void __init set_system_time(void)
{
unsigned int year, mon, day, hour, min, sec;
- unsigned long mregs = mstk48t02_regs;
+ void * __iomem mregs = mstk48t02_regs;
#ifdef CONFIG_PCI
unsigned long dregs = ds1287_regs;
#else
@@ -843,7 +843,8 @@ void __init clock_probe(void)
!strcmp(model, "m5823")) {
ds1287_regs = edev->resource[0].start;
} else {
- mstk48t59_regs = edev->resource[0].start;
+ mstk48t59_regs = (void * __iomem)
+ edev->resource[0].start;
mstk48t02_regs = mstk48t59_regs + MOSTEK_48T59_48T02;
}
break;
@@ -865,7 +866,8 @@ try_isa_clock:
!strcmp(model, "m5823")) {
ds1287_regs = isadev->resource.start;
} else {
- mstk48t59_regs = isadev->resource.start;
+ mstk48t59_regs = (void * __iomem)
+ isadev->resource.start;
mstk48t02_regs = mstk48t59_regs + MOSTEK_48T59_48T02;
}
break;
@@ -893,21 +895,24 @@ try_isa_clock:
}
if(model[5] == '0' && model[6] == '2') {
- mstk48t02_regs = (((u64)clk_reg[0].phys_addr) |
- (((u64)clk_reg[0].which_io)<<32UL));
+ mstk48t02_regs = (void * __iomem)
+ (((u64)clk_reg[0].phys_addr) |
+ (((u64)clk_reg[0].which_io)<<32UL));
} else if(model[5] == '0' && model[6] == '8') {
- mstk48t08_regs = (((u64)clk_reg[0].phys_addr) |
- (((u64)clk_reg[0].which_io)<<32UL));
+ mstk48t08_regs = (void * __iomem)
+ (((u64)clk_reg[0].phys_addr) |
+ (((u64)clk_reg[0].which_io)<<32UL));
mstk48t02_regs = mstk48t08_regs + MOSTEK_48T08_48T02;
} else {
- mstk48t59_regs = (((u64)clk_reg[0].phys_addr) |
- (((u64)clk_reg[0].which_io)<<32UL));
+ mstk48t59_regs = (void * __iomem)
+ (((u64)clk_reg[0].phys_addr) |
+ (((u64)clk_reg[0].which_io)<<32UL));
mstk48t02_regs = mstk48t59_regs + MOSTEK_48T59_48T02;
}
break;
}
- if (mstk48t02_regs != 0UL) {
+ if (mstk48t02_regs != NULL) {
/* Report a low battery voltage condition. */
if (has_low_battery())
prom_printf("NVRAM: Low battery voltage!\n");
@@ -1087,7 +1092,7 @@ unsigned long long sched_clock(void)
static int set_rtc_mmss(unsigned long nowtime)
{
int real_seconds, real_minutes, chip_minutes;
- unsigned long mregs = mstk48t02_regs;
+ void * __iomem mregs = mstk48t02_regs;
#ifdef CONFIG_PCI
unsigned long dregs = ds1287_regs;
#else
diff --git a/drivers/sbus/char/rtc.c b/drivers/sbus/char/rtc.c
index bf3273eb1c8..49d1cd99d5a 100644
--- a/drivers/sbus/char/rtc.c
+++ b/drivers/sbus/char/rtc.c
@@ -28,6 +28,42 @@
static int rtc_busy = 0;
+/* This is the structure layout used by drivers/char/rtc.c, we
+ * support that driver's ioctls so that things are less messy in
+ * userspace.
+ */
+struct rtc_time_generic {
+ int tm_sec;
+ int tm_min;
+ int tm_hour;
+ int tm_mday;
+ int tm_mon;
+ int tm_year;
+ int tm_wday;
+ int tm_yday;
+ int tm_isdst;
+};
+#define RTC_AIE_ON _IO('p', 0x01) /* Alarm int. enable on */
+#define RTC_AIE_OFF _IO('p', 0x02) /* ... off */
+#define RTC_UIE_ON _IO('p', 0x03) /* Update int. enable on */
+#define RTC_UIE_OFF _IO('p', 0x04) /* ... off */
+#define RTC_PIE_ON _IO('p', 0x05) /* Periodic int. enable on */
+#define RTC_PIE_OFF _IO('p', 0x06) /* ... off */
+#define RTC_WIE_ON _IO('p', 0x0f) /* Watchdog int. enable on */
+#define RTC_WIE_OFF _IO('p', 0x10) /* ... off */
+#define RTC_RD_TIME _IOR('p', 0x09, struct rtc_time_generic) /* Read RTC time */
+#define RTC_SET_TIME _IOW('p', 0x0a, struct rtc_time_generic) /* Set RTC time */
+#define RTC_ALM_SET _IOW('p', 0x07, struct rtc_time) /* Set alarm time */
+#define RTC_ALM_READ _IOR('p', 0x08, struct rtc_time) /* Read alarm time */
+#define RTC_IRQP_READ _IOR('p', 0x0b, unsigned long) /* Read IRQ rate */
+#define RTC_IRQP_SET _IOW('p', 0x0c, unsigned long) /* Set IRQ rate */
+#define RTC_EPOCH_READ _IOR('p', 0x0d, unsigned long) /* Read epoch */
+#define RTC_EPOCH_SET _IOW('p', 0x0e, unsigned long) /* Set epoch */
+#define RTC_WKALM_SET _IOW('p', 0x0f, struct rtc_wkalrm)/* Set wakeup alarm*/
+#define RTC_WKALM_RD _IOR('p', 0x10, struct rtc_wkalrm)/* Get wakeup alarm*/
+#define RTC_PLL_GET _IOR('p', 0x11, struct rtc_pll_info) /* Get PLL correction */
+#define RTC_PLL_SET _IOW('p', 0x12, struct rtc_pll_info) /* Set PLL correction */
+
/* Retrieve the current date and time from the real time clock. */
static void get_rtc_time(struct rtc_time *t)
{
@@ -82,29 +118,87 @@ void set_rtc_time(struct rtc_time *t)
spin_unlock_irq(&mostek_lock);
}
+static int put_rtc_time_generic(void __user *argp, struct rtc_time *tm)
+{
+ struct rtc_time_generic __user *utm = argp;
+
+ if (__put_user(tm->sec, &utm->tm_sec) ||
+ __put_user(tm->min, &utm->tm_min) ||
+ __put_user(tm->hour, &utm->tm_hour) ||
+ __put_user(tm->dom, &utm->tm_mday) ||
+ __put_user(tm->month, &utm->tm_mon) ||
+ __put_user(tm->year, &utm->tm_year) ||
+ __put_user(tm->dow, &utm->tm_wday) ||
+ __put_user(0, &utm->tm_yday) ||
+ __put_user(0, &utm->tm_isdst))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int get_rtc_time_generic(struct rtc_time *tm, void __user *argp)
+{
+ struct rtc_time_generic __user *utm = argp;
+
+ if (__get_user(tm->sec, &utm->tm_sec) ||
+ __get_user(tm->min, &utm->tm_min) ||
+ __get_user(tm->hour, &utm->tm_hour) ||
+ __get_user(tm->dom, &utm->tm_mday) ||
+ __get_user(tm->month, &utm->tm_mon) ||
+ __get_user(tm->year, &utm->tm_year) ||
+ __get_user(tm->dow, &utm->tm_wday))
+ return -EFAULT;
+
+ return 0;
+}
+
static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
struct rtc_time rtc_tm;
void __user *argp = (void __user *)arg;
- switch (cmd)
- {
+ switch (cmd) {
+ /* No interrupt support, return an error
+ * compatible with drivers/char/rtc.c
+ */
+ case RTC_AIE_OFF:
+ case RTC_AIE_ON:
+ case RTC_PIE_OFF:
+ case RTC_PIE_ON:
+ case RTC_UIE_OFF:
+ case RTC_UIE_ON:
+ case RTC_IRQP_READ:
+ case RTC_IRQP_SET:
+ case RTC_EPOCH_SET:
+ case RTC_EPOCH_READ:
+ return -EINVAL;
+
case RTCGET:
+ case RTC_RD_TIME:
memset(&rtc_tm, 0, sizeof(struct rtc_time));
get_rtc_time(&rtc_tm);
- if (copy_to_user(argp, &rtc_tm, sizeof(struct rtc_time)))
+ if (cmd == RTCGET) {
+ if (copy_to_user(argp, &rtc_tm,
+ sizeof(struct rtc_time)))
+ return -EFAULT;
+ } else if (put_rtc_time_generic(argp, &rtc_tm))
return -EFAULT;
return 0;
case RTCSET:
+ case RTC_SET_TIME:
if (!capable(CAP_SYS_TIME))
return -EPERM;
- if (copy_from_user(&rtc_tm, argp, sizeof(struct rtc_time)))
+ if (cmd == RTCSET) {
+ if (copy_from_user(&rtc_tm, argp,
+ sizeof(struct rtc_time)))
+ return -EFAULT;
+ } else if (get_rtc_time_generic(&rtc_tm, argp))
return -EFAULT;
set_rtc_time(&rtc_tm);
@@ -164,6 +258,7 @@ static int __init rtc_sun_init(void)
printk(KERN_ERR "rtc: unable to get misc minor for Mostek\n");
return error;
}
+ printk("rtc_sun_init: Registered Mostek RTC driver.\n");
return 0;
}
diff --git a/include/asm-sparc64/mostek.h b/include/asm-sparc64/mostek.h
index ccf2f5f82d7..1f9b1356a48 100644
--- a/include/asm-sparc64/mostek.h
+++ b/include/asm-sparc64/mostek.h
@@ -38,7 +38,7 @@
*
* We now deal with physical addresses for I/O to the chip. -DaveM
*/
-static __inline__ u8 mostek_read(unsigned long addr)
+static __inline__ u8 mostek_read(void * __iomem addr)
{
u8 ret;
@@ -48,7 +48,7 @@ static __inline__ u8 mostek_read(unsigned long addr)
return ret;
}
-static __inline__ void mostek_write(unsigned long addr, u8 val)
+static __inline__ void mostek_write(void * __iomem addr, u8 val)
{
__asm__ __volatile__("stba %0, [%1] %2"
: /* no outputs */
@@ -67,7 +67,7 @@ static __inline__ void mostek_write(unsigned long addr, u8 val)
#define MOSTEK_YEAR 0x07ffUL
extern spinlock_t mostek_lock;
-extern unsigned long mstk48t02_regs;
+extern void *__iomem mstk48t02_regs;
/* Control register values. */
#define MSTK_CREG_WRITE 0x80 /* Must set this before placing values. */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-13 07:58:10 +0000