3  * Faraday Technology FTTMR010 timer driver
46  * Control register (TMC30) bit fields for fttmr010/gemini/moxart timers.
77  * Interrupt status/mask register definitions for fttmr010/gemini/moxart
99 struct fttmr010 {  struct
115 static struct fttmr010 *local_fttmr;  argument
117 static inline struct fttmr010 *to_fttmr010(struct clock_event_device *evt)  in to_fttmr010()
119 	return container_of(evt, struct fttmr010, clkevt);  in to_fttmr010()
145 	struct fttmr010 *fttmr010 = to_fttmr010(evt);  in fttmr010_timer_set_next_event()  local
149 	fttmr010->timer_shutdown(evt);  in fttmr010_timer_set_next_event()
151 	if (fttmr010->is_aspeed) {  in fttmr010_timer_set_next_event()
156 		writel(cycles, fttmr010->base + TIMER1_LOAD);  in fttmr010_timer_set_next_event()
159 		cr = readl(fttmr010->base + TIMER1_COUNT);  in fttmr010_timer_set_next_event()
160 		writel(cr + cycles, fttmr010->base + TIMER1_MATCH1);  in fttmr010_timer_set_next_event()
164 	cr = readl(fttmr010->base + TIMER_CR);  in fttmr010_timer_set_next_event()
165 	cr |= fttmr010->t1_enable_val;  in fttmr010_timer_set_next_event()
166 	writel(cr, fttmr010->base + TIMER_CR);  in fttmr010_timer_set_next_event()
173 	struct fttmr010 *fttmr010 = to_fttmr010(evt);  in ast2600_timer_shutdown()  local
176 	writel(fttmr010->t1_enable_val, fttmr010->base + AST2600_TIMER_CR_CLR);  in ast2600_timer_shutdown()
183 	struct fttmr010 *fttmr010 = to_fttmr010(evt);  in fttmr010_timer_shutdown()  local
187 	cr = readl(fttmr010->base + TIMER_CR);  in fttmr010_timer_shutdown()
188 	cr &= ~fttmr010->t1_enable_val;  in fttmr010_timer_shutdown()
189 	writel(cr, fttmr010->base + TIMER_CR);  in fttmr010_timer_shutdown()
196 	struct fttmr010 *fttmr010 = to_fttmr010(evt);  in fttmr010_timer_set_oneshot()  local
200 	fttmr010->timer_shutdown(evt);  in fttmr010_timer_set_oneshot()
203 	writel(0, fttmr010->base + TIMER1_COUNT);  in fttmr010_timer_set_oneshot()
204 	if (fttmr010->is_aspeed) {  in fttmr010_timer_set_oneshot()
205 		writel(~0, fttmr010->base + TIMER1_LOAD);  in fttmr010_timer_set_oneshot()
207 		writel(0, fttmr010->base + TIMER1_LOAD);  in fttmr010_timer_set_oneshot()
210 		cr = readl(fttmr010->base + TIMER_INTR_MASK);  in fttmr010_timer_set_oneshot()
213 		writel(cr, fttmr010->base + TIMER_INTR_MASK);  in fttmr010_timer_set_oneshot()
221 	struct fttmr010 *fttmr010 = to_fttmr010(evt);  in fttmr010_timer_set_periodic()  local
222 	u32 period = DIV_ROUND_CLOSEST(fttmr010->tick_rate, HZ);  in fttmr010_timer_set_periodic()
226 	fttmr010->timer_shutdown(evt);  in fttmr010_timer_set_periodic()
229 	if (fttmr010->is_aspeed) {  in fttmr010_timer_set_periodic()
230 		writel(period, fttmr010->base + TIMER1_LOAD);  in fttmr010_timer_set_periodic()
233 		writel(cr, fttmr010->base + TIMER1_COUNT);  in fttmr010_timer_set_periodic()
234 		writel(cr, fttmr010->base + TIMER1_LOAD);  in fttmr010_timer_set_periodic()
237 		cr = readl(fttmr010->base + TIMER_INTR_MASK);  in fttmr010_timer_set_periodic()
240 		writel(cr, fttmr010->base + TIMER_INTR_MASK);  in fttmr010_timer_set_periodic()
244 	cr = readl(fttmr010->base + TIMER_CR);  in fttmr010_timer_set_periodic()
245 	cr |= fttmr010->t1_enable_val;  in fttmr010_timer_set_periodic()
246 	writel(cr, fttmr010->base + TIMER_CR);  in fttmr010_timer_set_periodic()
265 	struct fttmr010 *fttmr010 = to_fttmr010(evt);  in ast2600_timer_interrupt()  local
267 	writel(0x1, fttmr010->base + TIMER_INTR_STATE);  in ast2600_timer_interrupt()
276 	struct fttmr010 *fttmr010;  in fttmr010_common_init()  local
298 	fttmr010 = kzalloc(sizeof(*fttmr010), GFP_KERNEL);  in fttmr010_common_init()
299 	if (!fttmr010) {  in fttmr010_common_init()
303 	fttmr010->tick_rate = clk_get_rate(clk);  in fttmr010_common_init()
305 	fttmr010->base = of_iomap(np, 0);  in fttmr010_common_init()
306 	if (!fttmr010->base) {  in fttmr010_common_init()
323 		fttmr010->t1_enable_val = TIMER_1_CR_ASPEED_ENABLE |  in fttmr010_common_init()
325 		fttmr010->is_aspeed = true;  in fttmr010_common_init()
327 		fttmr010->t1_enable_val = TIMER_1_CR_ENABLE | TIMER_1_CR_INT;  in fttmr010_common_init()
332 		writel(TIMER_INT_ALL_MASK, fttmr010->base + TIMER_INTR_MASK);  in fttmr010_common_init()
333 		writel(0, fttmr010->base + TIMER_INTR_STATE);  in fttmr010_common_init()
346 	writel(val, fttmr010->base + TIMER_CR);  in fttmr010_common_init()
352 	local_fttmr = fttmr010;  in fttmr010_common_init()
353 	writel(0, fttmr010->base + TIMER2_COUNT);  in fttmr010_common_init()
354 	writel(0, fttmr010->base + TIMER2_MATCH1);  in fttmr010_common_init()
355 	writel(0, fttmr010->base + TIMER2_MATCH2);  in fttmr010_common_init()
357 	if (fttmr010->is_aspeed) {  in fttmr010_common_init()
358 		writel(~0, fttmr010->base + TIMER2_LOAD);  in fttmr010_common_init()
359 		clocksource_mmio_init(fttmr010->base + TIMER2_COUNT,  in fttmr010_common_init()
360 				      "FTTMR010-TIMER2",  in fttmr010_common_init()
361 				      fttmr010->tick_rate,  in fttmr010_common_init()
364 				     fttmr010->tick_rate);  in fttmr010_common_init()
366 		writel(0, fttmr010->base + TIMER2_LOAD);  in fttmr010_common_init()
367 		clocksource_mmio_init(fttmr010->base + TIMER2_COUNT,  in fttmr010_common_init()
368 				      "FTTMR010-TIMER2",  in fttmr010_common_init()
369 				      fttmr010->tick_rate,  in fttmr010_common_init()
372 				     fttmr010->tick_rate);  in fttmr010_common_init()
378 	writel(0, fttmr010->base + TIMER1_COUNT);  in fttmr010_common_init()
379 	writel(0, fttmr010->base + TIMER1_LOAD);  in fttmr010_common_init()
380 	writel(0, fttmr010->base + TIMER1_MATCH1);  in fttmr010_common_init()
381 	writel(0, fttmr010->base + TIMER1_MATCH2);  in fttmr010_common_init()
384 		fttmr010->timer_shutdown = ast2600_timer_shutdown;  in fttmr010_common_init()
386 				  IRQF_TIMER, "FTTMR010-TIMER1",  in fttmr010_common_init()
387 				  &fttmr010->clkevt);  in fttmr010_common_init()
389 		fttmr010->timer_shutdown = fttmr010_timer_shutdown;  in fttmr010_common_init()
391 				  IRQF_TIMER, "FTTMR010-TIMER1",  in fttmr010_common_init()
392 				  &fttmr010->clkevt);  in fttmr010_common_init()
395 		pr_err("FTTMR010-TIMER1 no IRQ\n");  in fttmr010_common_init()
399 	fttmr010->clkevt.name = "FTTMR010-TIMER1";  in fttmr010_common_init()
401 	fttmr010->clkevt.rating = 300;  in fttmr010_common_init()
402 	fttmr010->clkevt.features = CLOCK_EVT_FEAT_PERIODIC |  in fttmr010_common_init()
404 	fttmr010->clkevt.set_next_event = fttmr010_timer_set_next_event;  in fttmr010_common_init()
405 	fttmr010->clkevt.set_state_shutdown = fttmr010->timer_shutdown;  in fttmr010_common_init()
406 	fttmr010->clkevt.set_state_periodic = fttmr010_timer_set_periodic;  in fttmr010_common_init()
407 	fttmr010->clkevt.set_state_oneshot = fttmr010_timer_set_oneshot;  in fttmr010_common_init()
408 	fttmr010->clkevt.tick_resume = fttmr010->timer_shutdown;  in fttmr010_common_init()
409 	fttmr010->clkevt.cpumask = cpumask_of(0);  in fttmr010_common_init()
410 	fttmr010->clkevt.irq = irq;  in fttmr010_common_init()
411 	clockevents_config_and_register(&fttmr010->clkevt,  in fttmr010_common_init()
412 					fttmr010->tick_rate,  in fttmr010_common_init()
417 	if (fttmr010->is_aspeed)  in fttmr010_common_init()
418 		fttmr010->delay_timer.read_current_timer =  in fttmr010_common_init()
421 		fttmr010->delay_timer.read_current_timer =  in fttmr010_common_init()
423 	fttmr010->delay_timer.freq = fttmr010->tick_rate;  in fttmr010_common_init()
424 	register_current_timer_delay(&fttmr010->delay_timer);  in fttmr010_common_init()
430 	iounmap(fttmr010->base);  in fttmr010_common_init()
432 	kfree(fttmr010);  in fttmr010_common_init()
454 TIMER_OF_DECLARE(fttmr010, "faraday,fttmr010", fttmr010_timer_init);