56 #define SYST_CON_REG(to)        (timer_of_base(to) + SYST_CON)  argument
57 #define SYST_VAL_REG(to)        (timer_of_base(to) + SYST_VAL)  argument
60  * SYST_CON_EN: Clock enable. Shall be set to
65  * SYST_CON_IRQ_EN: Set to allow interrupt.
67  * SYST_CON_IRQ_CLR: Set to clear interrupt.
75 static void mtk_syst_ack_irq(struct timer_of *to)  in mtk_syst_ack_irq()  argument
78 	writel(SYST_CON_IRQ_CLR | SYST_CON_EN, SYST_CON_REG(to));  in mtk_syst_ack_irq()
84 	struct timer_of *to = to_timer_of(clkevt);  in mtk_syst_handler()  local
86 	mtk_syst_ack_irq(to);  in mtk_syst_handler()
95 	struct timer_of *to = to_timer_of(clkevt);  in mtk_syst_clkevt_next_event()  local
97 	/* Enable clock to allow timeout tick update later */  in mtk_syst_clkevt_next_event()
98 	writel(SYST_CON_EN, SYST_CON_REG(to));  in mtk_syst_clkevt_next_event()
104 	writel(ticks, SYST_VAL_REG(to));  in mtk_syst_clkevt_next_event()
107 	writel(SYST_CON_EN | SYST_CON_IRQ_EN, SYST_CON_REG(to));  in mtk_syst_clkevt_next_event()
135 static void mtk_gpt_clkevt_time_stop(struct timer_of *to, u8 timer)  in mtk_gpt_clkevt_time_stop()  argument
139 	val = readl(timer_of_base(to) + GPT_CTRL_REG(timer));  in mtk_gpt_clkevt_time_stop()
140 	writel(val & ~GPT_CTRL_ENABLE, timer_of_base(to) +  in mtk_gpt_clkevt_time_stop()
144 static void mtk_gpt_clkevt_time_setup(struct timer_of *to,  in mtk_gpt_clkevt_time_setup()  argument
147 	writel(delay, timer_of_base(to) + GPT_CMP_REG(timer));  in mtk_gpt_clkevt_time_setup()
150 static void mtk_gpt_clkevt_time_start(struct timer_of *to,  in mtk_gpt_clkevt_time_start()  argument
156 	writel(GPT_IRQ_ACK(timer), timer_of_base(to) + GPT_IRQ_ACK_REG);  in mtk_gpt_clkevt_time_start()
158 	val = readl(timer_of_base(to) + GPT_CTRL_REG(timer));  in mtk_gpt_clkevt_time_start()
169 	       timer_of_base(to) + GPT_CTRL_REG(timer));  in mtk_gpt_clkevt_time_start()
181 	struct timer_of *to = to_timer_of(clk);  in mtk_gpt_clkevt_set_periodic()  local
183 	mtk_gpt_clkevt_time_stop(to, TIMER_CLK_EVT);  in mtk_gpt_clkevt_set_periodic()
184 	mtk_gpt_clkevt_time_setup(to, to->of_clk.period, TIMER_CLK_EVT);  in mtk_gpt_clkevt_set_periodic()
185 	mtk_gpt_clkevt_time_start(to, true, TIMER_CLK_EVT);  in mtk_gpt_clkevt_set_periodic()
193 	struct timer_of *to = to_timer_of(clk);  in mtk_gpt_clkevt_next_event()  local
195 	mtk_gpt_clkevt_time_stop(to, TIMER_CLK_EVT);  in mtk_gpt_clkevt_next_event()
196 	mtk_gpt_clkevt_time_setup(to, event, TIMER_CLK_EVT);  in mtk_gpt_clkevt_next_event()
197 	mtk_gpt_clkevt_time_start(to, false, TIMER_CLK_EVT);  in mtk_gpt_clkevt_next_event()
205 	struct timer_of *to = to_timer_of(clkevt);  in mtk_gpt_interrupt()  local
208 	writel(GPT_IRQ_ACK(TIMER_CLK_EVT), timer_of_base(to) + GPT_IRQ_ACK_REG);  in mtk_gpt_interrupt()
215 __init mtk_gpt_setup(struct timer_of *to, u8 timer, u8 option)  in mtk_gpt_setup()  argument
218 	       timer_of_base(to) + GPT_CTRL_REG(timer));  in mtk_gpt_setup()
221 	       timer_of_base(to) + GPT_CLK_REG(timer));  in mtk_gpt_setup()
223 	writel(0x0, timer_of_base(to) + GPT_CMP_REG(timer));  in mtk_gpt_setup()
226 	       timer_of_base(to) + GPT_CTRL_REG(timer));  in mtk_gpt_setup()
229 static void mtk_gpt_enable_irq(struct timer_of *to, u8 timer)  in mtk_gpt_enable_irq()  argument
234 	writel(0x0, timer_of_base(to) + GPT_IRQ_EN_REG);  in mtk_gpt_enable_irq()
237 	writel(0x3f, timer_of_base(to) + GPT_IRQ_ACK_REG);  in mtk_gpt_enable_irq()
239 	val = readl(timer_of_base(to) + GPT_IRQ_EN_REG);  in mtk_gpt_enable_irq()
241 	       timer_of_base(to) + GPT_IRQ_EN_REG);  in mtk_gpt_enable_irq()
244 static struct timer_of to = {  variable
262 	to.clkevt.features = CLOCK_EVT_FEAT_DYNIRQ | CLOCK_EVT_FEAT_ONESHOT;  in mtk_syst_init()
263 	to.clkevt.set_state_shutdown = mtk_syst_clkevt_shutdown;  in mtk_syst_init()
264 	to.clkevt.set_state_oneshot = mtk_syst_clkevt_oneshot;  in mtk_syst_init()
265 	to.clkevt.tick_resume = mtk_syst_clkevt_resume;  in mtk_syst_init()
266 	to.clkevt.set_next_event = mtk_syst_clkevt_next_event;  in mtk_syst_init()
267 	to.of_irq.handler = mtk_syst_handler;  in mtk_syst_init()
269 	ret = timer_of_init(node, &to);  in mtk_syst_init()
273 	clockevents_config_and_register(&to.clkevt, timer_of_rate(&to),  in mtk_syst_init()
283 	to.clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;  in mtk_gpt_init()
284 	to.clkevt.set_state_shutdown = mtk_gpt_clkevt_shutdown;  in mtk_gpt_init()
285 	to.clkevt.set_state_periodic = mtk_gpt_clkevt_set_periodic;  in mtk_gpt_init()
286 	to.clkevt.set_state_oneshot = mtk_gpt_clkevt_shutdown;  in mtk_gpt_init()
287 	to.clkevt.tick_resume = mtk_gpt_clkevt_shutdown;  in mtk_gpt_init()
288 	to.clkevt.set_next_event = mtk_gpt_clkevt_next_event;  in mtk_gpt_init()
289 	to.of_irq.handler = mtk_gpt_interrupt;  in mtk_gpt_init()
291 	ret = timer_of_init(node, &to);  in mtk_gpt_init()
296 	mtk_gpt_setup(&to, TIMER_CLK_SRC, GPT_CTRL_OP_FREERUN);  in mtk_gpt_init()
297 	clocksource_mmio_init(timer_of_base(&to) + GPT_CNT_REG(TIMER_CLK_SRC),  in mtk_gpt_init()
298 			      node->name, timer_of_rate(&to), 300, 32,  in mtk_gpt_init()
300 	gpt_sched_reg = timer_of_base(&to) + GPT_CNT_REG(TIMER_CLK_SRC);  in mtk_gpt_init()
301 	sched_clock_register(mtk_gpt_read_sched_clock, 32, timer_of_rate(&to));  in mtk_gpt_init()
304 	mtk_gpt_setup(&to, TIMER_CLK_EVT, GPT_CTRL_OP_REPEAT);  in mtk_gpt_init()
305 	clockevents_config_and_register(&to.clkevt, timer_of_rate(&to),  in mtk_gpt_init()
308 	mtk_gpt_enable_irq(&to, TIMER_CLK_EVT);  in mtk_gpt_init()