diff options
Diffstat (limited to 'arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c')
| -rw-r--r-- | arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c | 76 |
1 files changed, 15 insertions, 61 deletions
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c index 7316a78fdd68..0f7576dfd141 100644 --- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c +++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c @@ -53,6 +53,7 @@ #include <linux/pci.h> #include <linux/timex.h> #include <linux/pm.h> +#include <linux/platform_device.h> #include <asm/bootinfo.h> #include <asm/page.h> @@ -64,9 +65,6 @@ #include <asm/time.h> #include <linux/bootmem.h> #include <linux/blkdev.h> -#ifdef CONFIG_RTC_DS1742 -#include <linux/ds1742rtc.h> -#endif #ifdef CONFIG_TOSHIBA_FPCIB0 #include <asm/tx4927/smsc_fdc37m81x.h> #endif @@ -1020,69 +1018,12 @@ void __init toshiba_rbtx4927_setup(void) "+\n"); } -#ifdef CONFIG_RTC_DS1742 -extern unsigned long rtc_ds1742_get_time(void); -extern int rtc_ds1742_set_time(unsigned long); -extern void rtc_ds1742_wait(void); -#endif - void __init toshiba_rbtx4927_time_init(void) { - u32 c1; - u32 c2; - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n"); -#ifdef CONFIG_RTC_DS1742 - - rtc_mips_get_time = rtc_ds1742_get_time; - rtc_mips_set_time = rtc_ds1742_set_time; - - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":rtc_ds1742_init()-\n"); - rtc_ds1742_init(0xbc010000); - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":rtc_ds1742_init()+\n"); - - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":Calibrate mips_hpt_frequency-\n"); - rtc_ds1742_wait(); - - /* get the count */ - c1 = read_c0_count(); - - /* wait for the seconds to change again */ - rtc_ds1742_wait(); - - /* get the count again */ - c2 = read_c0_count(); - - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":Calibrate mips_hpt_frequency+\n"); - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":c1=%12u\n", c1); - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":c2=%12u\n", c2); - - /* this diff is as close as we are going to get to counter ticks per sec */ - mips_hpt_frequency = abs(c2 - c1); - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":f1=%12u\n", mips_hpt_frequency); - - /* round to 1/10th of a MHz */ - mips_hpt_frequency /= (100 * 1000); - mips_hpt_frequency *= (100 * 1000); - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, - ":f2=%12u\n", mips_hpt_frequency); - - TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_INFO, - ":mips_hpt_frequency=%uHz (%uMHz)\n", - mips_hpt_frequency, - mips_hpt_frequency / 1000000); -#else - mips_hpt_frequency = 100000000; -#endif + mips_hpt_frequency = tx4927_cpu_clock / 2; TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n"); @@ -1095,3 +1036,16 @@ void __init toshiba_rbtx4927_timer_setup(struct irqaction *irq) TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP, "+\n"); } + +static int __init toshiba_rbtx4927_rtc_init(void) +{ + struct resource res = { + .start = 0x1c010000, + .end = 0x1c010000 + 0x800 - 1, + .flags = IORESOURCE_MEM, + }; + struct platform_device *dev = + platform_device_register_simple("ds1742", -1, &res, 1); + return IS_ERR(dev) ? PTR_ERR(dev) : 0; +} +device_initcall(toshiba_rbtx4927_rtc_init); |