39 #define UNIT_REG_SIZE    16     /* Size of memory mapped regs for the unit */
70     GPTimerUnit *unit;  member
139 static void grlib_gptimer_set_scaler(GPTimerUnit *unit, uint32_t scaler)  in grlib_gptimer_set_scaler()  argument
144     assert(unit != NULL);  in grlib_gptimer_set_scaler()
147         value = unit->freq_hz / (scaler + 1);  in grlib_gptimer_set_scaler()
149         value = unit->freq_hz;  in grlib_gptimer_set_scaler()
154     for (i = 0; i < unit->nr_timers; i++) {  in grlib_gptimer_set_scaler()
155         ptimer_transaction_begin(unit->timers[i].ptimer);  in grlib_gptimer_set_scaler()
156         ptimer_set_freq(unit->timers[i].ptimer, value);  in grlib_gptimer_set_scaler()
157         ptimer_transaction_commit(unit->timers[i].ptimer);  in grlib_gptimer_set_scaler()
184     GPTimerUnit        *unit  = opaque;  in grlib_gptimer_read()  local
191     /* Unit registers */  in grlib_gptimer_read()
194         trace_grlib_gptimer_readl(-1, addr, unit->scaler);  in grlib_gptimer_read()
195         return unit->scaler;  in grlib_gptimer_read()
198         trace_grlib_gptimer_readl(-1, addr, unit->reload);  in grlib_gptimer_read()
199         return unit->reload;  in grlib_gptimer_read()
202         trace_grlib_gptimer_readl(-1, addr, unit->config);  in grlib_gptimer_read()
203         return unit->config;  in grlib_gptimer_read()
212     if (id >= 0 && id < unit->nr_timers) {  in grlib_gptimer_read()
217             value = ptimer_get_count(unit->timers[id].ptimer);  in grlib_gptimer_read()
222             value = unit->timers[id].reload;  in grlib_gptimer_read()
227             trace_grlib_gptimer_readl(id, addr, unit->timers[id].config);  in grlib_gptimer_read()
228             return unit->timers[id].config;  in grlib_gptimer_read()
243     GPTimerUnit        *unit = opaque;  in grlib_gptimer_write()  local
249     /* Unit registers */  in grlib_gptimer_write()
253         unit->scaler = value;  in grlib_gptimer_write()
254         trace_grlib_gptimer_writel(-1, addr, unit->scaler);  in grlib_gptimer_write()
259         unit->reload = value;  in grlib_gptimer_write()
260         trace_grlib_gptimer_writel(-1, addr, unit->reload);  in grlib_gptimer_write()
261         grlib_gptimer_set_scaler(unit, value);  in grlib_gptimer_write()
276     if (id >= 0 && id < unit->nr_timers) {  in grlib_gptimer_write()
282             grlib_gptimer_tx_begin(&unit->timers[id]);  in grlib_gptimer_write()
283             unit->timers[id].counter = value;  in grlib_gptimer_write()
284             grlib_gptimer_enable(&unit->timers[id]);  in grlib_gptimer_write()
285             grlib_gptimer_tx_commit(&unit->timers[id]);  in grlib_gptimer_write()
290             unit->timers[id].reload = value;  in grlib_gptimer_write()
301                 value |= unit->timers[id].config & GPTIMER_INT_PENDING;  in grlib_gptimer_write()
304             unit->timers[id].config = value;  in grlib_gptimer_write()
309             grlib_gptimer_tx_begin(&unit->timers[id]);  in grlib_gptimer_write()
311                 grlib_gptimer_restart(&unit->timers[id]);  in grlib_gptimer_write()
313                 grlib_gptimer_enable(&unit->timers[id]);  in grlib_gptimer_write()
319             unit->timers[id].config = value;  in grlib_gptimer_write()
320             grlib_gptimer_tx_commit(&unit->timers[id]);  in grlib_gptimer_write()
344     GPTimerUnit *unit = GRLIB_GPTIMER(d);  in grlib_gptimer_reset()  local
347     assert(unit != NULL);  in grlib_gptimer_reset()
349     unit->scaler = 0;  in grlib_gptimer_reset()
350     unit->reload = 0;  in grlib_gptimer_reset()
352     unit->config  = unit->nr_timers;  in grlib_gptimer_reset()
353     unit->config |= unit->irq_line << 3;  in grlib_gptimer_reset()
354     unit->config |= 1 << 8;     /* separate interrupt */  in grlib_gptimer_reset()
355     unit->config |= 1 << 9;     /* Disable timer freeze */  in grlib_gptimer_reset()
358     for (i = 0; i < unit->nr_timers; i++) {  in grlib_gptimer_reset()
359         GPTimer *timer = &unit->timers[i];  in grlib_gptimer_reset()
367         ptimer_set_freq(timer->ptimer, unit->freq_hz);  in grlib_gptimer_reset()
374     GPTimerUnit  *unit = GRLIB_GPTIMER(dev);  in grlib_gptimer_realize()  local
378     assert(unit->nr_timers > 0);  in grlib_gptimer_realize()
379     assert(unit->nr_timers <= GPTIMER_MAX_TIMERS);  in grlib_gptimer_realize()
381     unit->timers = g_malloc0(sizeof unit->timers[0] * unit->nr_timers);  in grlib_gptimer_realize()
383     for (i = 0; i < unit->nr_timers; i++) {  in grlib_gptimer_realize()
384         GPTimer *timer = &unit->timers[i];  in grlib_gptimer_realize()
386         timer->unit   = unit;  in grlib_gptimer_realize()
395         ptimer_set_freq(timer->ptimer, unit->freq_hz);  in grlib_gptimer_realize()
399     memory_region_init_io(&unit->iomem, OBJECT(unit), &grlib_gptimer_ops,  in grlib_gptimer_realize()
400                           unit, "gptimer",  in grlib_gptimer_realize()
401                           UNIT_REG_SIZE + GPTIMER_REG_SIZE * unit->nr_timers);  in grlib_gptimer_realize()
403     sysbus_init_mmio(sbd, &unit->iomem);  in grlib_gptimer_realize()