32 #include <asm/bootinfo-vme.h>
49 	if (be16_to_cpu(bi->tag) == BI_VME_TYPE)  in bvme6000_parse_bootinfo()
65 	pit->pcddr	|= 0x10;	/* WDOG enable */  in bvme6000_reset()
77  * This function is called during kernel startup to initialize
116     pit->pgcr	= 0x00;	/* Unidirectional 8 bit, no handshake for now */  in config_bvme6000()
117     pit->psrr	= 0x18;	/* PIACK and PIRQ functions enabled */  in config_bvme6000()
118     pit->pacr	= 0x00;	/* Sub Mode 00, H2 i/p, no DMA */  in config_bvme6000()
119     pit->padr	= 0x00;	/* Just to be tidy! */  in config_bvme6000()
120     pit->paddr	= 0x00;	/* All inputs for now (safest) */  in config_bvme6000()
121     pit->pbcr	= 0x80;	/* Sub Mode 1x, H4 i/p, no DMA */  in config_bvme6000()
122     pit->pbdr	= 0xbc | (*config_reg_ptr & BVME_CONFIG_SW1 ? 0 : 0x40);  in config_bvme6000()
124     pit->pbddr	= 0xf3;	/* Mostly outputs */  in config_bvme6000()
125     pit->pcdr	= 0x01;	/* PA transceiver disabled */  in config_bvme6000()
126     pit->pcddr	= 0x03;	/* WDOG disable */  in config_bvme6000()
164 #define RTC_TIMER_COUNT      ((RTC_TIMER_CYCLES / 2) - 1)
174     msr = rtc->msr & 0xc0;  in bvme6000_timer_int()
175     rtc->msr = msr | 0x20;		/* Ack the interrupt */  in bvme6000_timer_int()
185  * Set up the RTC timer 1 to mode 2, so T1 output toggles every 5ms
186  * (40000 x 125ns).  It will interrupt every 10ms, when T1 goes low.
187  * So, when reading the elapsed time, you should read timer1,
189  * That gives you the number of 125ns ticks in to the 10ms period,
196     unsigned char msr = rtc->msr & 0xc0;  in bvme6000_sched_init()
198     rtc->msr = 0;	/* Ensure timer registers accessible */  in bvme6000_sched_init()
204     rtc->t1cr_omr = 0x04;	/* Mode 2, ext clk */  in bvme6000_sched_init()
205     rtc->t1msb = RTC_TIMER_COUNT >> 8;  in bvme6000_sched_init()
206     rtc->t1lsb = RTC_TIMER_COUNT & 0xff;  in bvme6000_sched_init()
207     rtc->irr_icr1 &= 0xef;	/* Route timer 1 to INTR pin */  in bvme6000_sched_init()
208     rtc->msr = 0x40;		/* Access int.cntrl, etc */  in bvme6000_sched_init()
209     rtc->pfr_icr0 = 0x80;	/* Just timer 1 ints enabled */  in bvme6000_sched_init()
210     rtc->irr_icr1 = 0;  in bvme6000_sched_init()
211     rtc->t1cr_omr = 0x0a;	/* INTR+T1 active lo, push-pull */  in bvme6000_sched_init()
212     rtc->t0cr_rtmr &= 0xdf;	/* Stop timers in standby */  in bvme6000_sched_init()
213     rtc->msr = 0;		/* Access timer 1 control */  in bvme6000_sched_init()
214     rtc->t1cr_omr = 0x05;	/* Mode 2, ext clk, GO */  in bvme6000_sched_init()
216     rtc->msr = msr;  in bvme6000_sched_init()
244     msr = rtc->msr & 0xc0;  in bvme6000_read_clk()
245     rtc->msr = 0;	/* Ensure timer registers accessible */  in bvme6000_read_clk()
249 	t1int = rtc->msr & 0x20;  in bvme6000_read_clk()
250 	t1op  = pit->pcdr & 0x04;  in bvme6000_read_clk()
251 	rtc->t1cr_omr |= 0x40;		/* Latch timer1 */  in bvme6000_read_clk()
252 	msb = rtc->t1msb;		/* Read timer1 */  in bvme6000_read_clk()
253 	v = (msb << 8) | rtc->t1lsb;	/* Read timer1 */  in bvme6000_read_clk()
254     } while (t1int != (rtc->msr & 0x20) ||  in bvme6000_read_clk()
255 		t1op != (pit->pcdr & 0x04) ||  in bvme6000_read_clk()
256 			abs(ov-v) > 80 ||  in bvme6000_read_clk()
257 				v > RTC_TIMER_COUNT - (RTC_TIMER_COUNT / 100));  in bvme6000_read_clk()
259     v = RTC_TIMER_COUNT - v;  in bvme6000_read_clk()
264     rtc->msr = msr;  in bvme6000_read_clk()
274  * Looks like op is non-zero for setting the clock, and zero for
284  *         int             wday;      0..6, 0 is Sunday, -1 means unknown/don't set
291 	unsigned char msr = rtc->msr & 0xc0;  in bvme6000_hwclk()
293 	rtc->msr = 0x40;	/* Ensure clock and real-time-mode-register  in bvme6000_hwclk()
297 		rtc->t0cr_rtmr = t->tm_year%4;  in bvme6000_hwclk()
298 		rtc->bcd_tenms = 0;  in bvme6000_hwclk()
299 		rtc->bcd_sec = bin2bcd(t->tm_sec);  in bvme6000_hwclk()
300 		rtc->bcd_min = bin2bcd(t->tm_min);  in bvme6000_hwclk()
301 		rtc->bcd_hr  = bin2bcd(t->tm_hour);  in bvme6000_hwclk()
302 		rtc->bcd_dom = bin2bcd(t->tm_mday);  in bvme6000_hwclk()
303 		rtc->bcd_mth = bin2bcd(t->tm_mon + 1);  in bvme6000_hwclk()
304 		rtc->bcd_year = bin2bcd(t->tm_year%100);  in bvme6000_hwclk()
305 		if (t->tm_wday >= 0)  in bvme6000_hwclk()
306 			rtc->bcd_dow = bin2bcd(t->tm_wday+1);  in bvme6000_hwclk()
307 		rtc->t0cr_rtmr = t->tm_year%4 | 0x08;  in bvme6000_hwclk()
312 			t->tm_sec  = bcd2bin(rtc->bcd_sec);  in bvme6000_hwclk()
313 			t->tm_min  = bcd2bin(rtc->bcd_min);  in bvme6000_hwclk()
314 			t->tm_hour = bcd2bin(rtc->bcd_hr);  in bvme6000_hwclk()
315 			t->tm_mday = bcd2bin(rtc->bcd_dom);  in bvme6000_hwclk()
316 			t->tm_mon  = bcd2bin(rtc->bcd_mth)-1;  in bvme6000_hwclk()
317 			t->tm_year = bcd2bin(rtc->bcd_year);  in bvme6000_hwclk()
318 			if (t->tm_year < 70)  in bvme6000_hwclk()
319 				t->tm_year += 100;  in bvme6000_hwclk()
320 			t->tm_wday = bcd2bin(rtc->bcd_dow)-1;  in bvme6000_hwclk()
321 		} while (t->tm_sec != bcd2bin(rtc->bcd_sec));  in bvme6000_hwclk()
324 	rtc->msr = msr;  in bvme6000_hwclk()