1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
7  * Based on OMAP3 INTC code by Ben Gray
97 #define	BANK1_END	(BANK1_START + 32 - 1)
99 #define	BANK2_END	(BANK2_START + 32 - 1)
104 #define	IRQ_BANK1(n)	((n) - BANK1_START)
105 #define	IRQ_BANK2(n)	((n) - BANK2_START)
134 	{"broadcom,bcm2835-armctrl-ic",		1},
135 	{"brcm,bcm2835-armctrl-ic",		1},
136 	{"brcm,bcm2836-armctrl-ic",		1},
143     bus_space_read_4((_sc)->intc_bst, (_sc)->intc_bsh, (reg))
145     bus_space_write_4((_sc)->intc_bst, (_sc)->intc_bsh, (reg), (val))
151 	intc_write_4(sc, bii->bii_disable_reg,  bii->bii_mask);  in bcm_intc_isrc_mask()
158 	intc_write_4(sc, bii->bii_enable_reg,  bii->bii_mask);  in bcm_intc_isrc_unmask()
168 		return (-1);  in bcm2835_intc_active_intr()
170 		return (ffs(pending) - 1);  in bcm2835_intc_active_intr()
201 			return (BANK1_START + ffs(pending_gpu) - 1);  in bcm2835_intc_active_intr()
207 			return (BANK2_START + ffs(pending_gpu) - 1);  in bcm2835_intc_active_intr()
209 	return (-1);	/* It shouldn't end here, but it's hardware. */  in bcm2835_intc_active_intr()
220 		if (irq == -1)  in bcm2835_intc_intr()
222 		if (intr_isrc_dispatch(&sc->intc_isrcs[irq].bii_isrc,  in bcm2835_intc_intr()
223 		    curthread->td_intr_frame) != 0) {  in bcm2835_intc_intr()
224 			bcm_intc_isrc_mask(sc, &sc->intc_isrcs[irq]);  in bcm2835_intc_intr()
225 			device_printf(sc->sc_dev, "Stray irq %u disabled\n",  in bcm2835_intc_intr()
231 		device_printf(sc->sc_dev, "Spurious interrupt detected\n");  in bcm2835_intc_intr()
241 	arm_irq_memory_barrier(bii->bii_irq);  in bcm_intc_enable_intr()
262 	if (data->type != INTR_MAP_DATA_FDT)  in bcm_intc_map_intr()
266 	if (daf->ncells == 1)  in bcm_intc_map_intr()
267 		irq = daf->cells[0];  in bcm_intc_map_intr()
268 	else if (daf->ncells == 2) {  in bcm_intc_map_intr()
270 		switch (daf->cells[0]) {  in bcm_intc_map_intr()
272 			irq = daf->cells[1];  in bcm_intc_map_intr()
277 			irq = daf->cells[1] + BANK1_START;  in bcm_intc_map_intr()
282 			irq = daf->cells[1] + BANK2_START;  in bcm_intc_map_intr()
294 			    daf->cells[0], daf->cells[1]);  in bcm_intc_map_intr()
305 	*isrcp = &sc->intc_isrcs[irq].bii_isrc;  in bcm_intc_map_intr()
336 	name = device_get_nameunit(sc->sc_dev);  in bcm_intc_pic_register()
338 		bii = &sc->intc_isrcs[irq];  in bcm_intc_pic_register()
339 		bii->bii_irq = irq;  in bcm_intc_pic_register()
341 			bii->bii_disable_reg = INTC_DISABLE_BASIC;  in bcm_intc_pic_register()
342 			bii->bii_enable_reg = INTC_ENABLE_BASIC;  in bcm_intc_pic_register()
343 			bii->bii_mask = 1 << irq;  in bcm_intc_pic_register()
345 			bii->bii_disable_reg = INTC_DISABLE_BANK1;  in bcm_intc_pic_register()
346 			bii->bii_enable_reg = INTC_ENABLE_BANK1;  in bcm_intc_pic_register()
347 			bii->bii_mask = 1 << IRQ_BANK1(irq);  in bcm_intc_pic_register()
349 			bii->bii_disable_reg = INTC_DISABLE_BANK2;  in bcm_intc_pic_register()
350 			bii->bii_enable_reg = INTC_ENABLE_BANK2;  in bcm_intc_pic_register()
351 			bii->bii_mask = 1 << IRQ_BANK2(irq);  in bcm_intc_pic_register()
355 		error = intr_isrc_register(&bii->bii_isrc, sc->sc_dev, 0,  in bcm_intc_pic_register()
360 	if (intr_pic_register(sc->sc_dev, xref) == NULL)  in bcm_intc_pic_register()
373 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in bcm_intc_probe()
386 	sc->sc_dev = dev;  in bcm_intc_attach()
391 	sc->intc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);  in bcm_intc_attach()
392 	if (sc->intc_res == NULL) {  in bcm_intc_attach()
399 		bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->intc_res);  in bcm_intc_attach()
405 	sc->intc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,  in bcm_intc_attach()
407 	if (sc->intc_irq_res == NULL) {  in bcm_intc_attach()
415 		if (bus_setup_intr(dev, sc->intc_irq_res, INTR_TYPE_CLK,  in bcm_intc_attach()
416 		    bcm2835_intc_intr, NULL, sc, &sc->intc_irq_hdl)) {  in bcm_intc_attach()
422 	sc->intc_bst = rman_get_bustag(sc->intc_res);  in bcm_intc_attach()
423 	sc->intc_bsh = rman_get_bushandle(sc->intc_res);  in bcm_intc_attach()
444 	"intc",
449 EARLY_DRIVER_MODULE(intc, simplebus, bcm_intc_driver, 0, 0,