1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
34 #include <sys/bus.h>
57 #include <machine/bus.h>
99 	clk_t				aclk_mst, aclk_slv, aclk_dbi, pclk, aux;  member
106 	{"rockchip,rk3568-pcie",	1},
116 	device_printf(sc->dev, "INTERRUPT!!\n");  in rk3568_intr()
125 	val = bus_read_4(sc->apb_res, PCIE_CLIENT_LTSSM_STATUS);  in rk3568_pcie_get_link()
143 	if (sc->reset_gpio != NULL) {  in rk3568_pcie_init_soc()
144 		if (gpio_pin_setflags(sc->reset_gpio, GPIO_PIN_OUTPUT)) {  in rk3568_pcie_init_soc()
148 		if (gpio_pin_set_active(sc->reset_gpio, true)) {  in rk3568_pcie_init_soc()
155 	if (hwreset_assert(sc->hwreset)) {  in rk3568_pcie_init_soc()
161 	if (sc->regulator != NULL) {  in rk3568_pcie_init_soc()
162 		if (regulator_enable(sc->regulator)) {  in rk3568_pcie_init_soc()
169 	if (phy_enable(sc->phy)) {  in rk3568_pcie_init_soc()
175 	if (hwreset_deassert(sc->hwreset)) {  in rk3568_pcie_init_soc()
181 	if ((err = clk_enable(sc->aclk_mst))) {  in rk3568_pcie_init_soc()
185 	if ((err = clk_enable(sc->aclk_slv))) {  in rk3568_pcie_init_soc()
189 	if ((err = clk_enable(sc->aclk_dbi))) {  in rk3568_pcie_init_soc()
193 	if ((err = clk_enable(sc->pclk))) {  in rk3568_pcie_init_soc()
197 	if ((err = clk_enable(sc->aux))) {  in rk3568_pcie_init_soc()
198 		device_printf(dev, "Could not enable aux clk\n");  in rk3568_pcie_init_soc()
203 	bus_write_4(sc->apb_res, PCIE_CLIENT_HOT_RESET_CTRL,  in rk3568_pcie_init_soc()
205 	bus_write_4(sc->apb_res, PCIE_CLIENT_GENERAL_CON,  in rk3568_pcie_init_soc()
209 	if ((err = gpio_pin_set_active(sc->reset_gpio, false)))  in rk3568_pcie_init_soc()
213 	bus_write_4(sc->apb_res, PCIE_CLIENT_GENERAL_CON,  in rk3568_pcie_init_soc()
219 	if (sc->reset_gpio != NULL) {  in rk3568_pcie_init_soc()
220 		if (gpio_pin_set_active(sc->reset_gpio, true)) {  in rk3568_pcie_init_soc()
227 	for (count = 20; count; count--) {  in rk3568_pcie_init_soc()
245 	bus_write_4(sc->apb_res, PCIE_CLIENT_INTR_MASK_MSG_RX, 0x7fff0000);  in rk3568_pcie_init_soc()
248 	bus_write_4(sc->apb_res, PCIE_CLIENT_INTR_MASK_LEGACY, 0x00ff0000);  in rk3568_pcie_init_soc()
251 	bus_write_4(sc->apb_res, PCIE_CLIENT_INTR_MASK_ERR, 0x0fff0000);  in rk3568_pcie_init_soc()
262 	if (sc->irq_handle)  in rk3568_pcie_detach()
263 		bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);  in rk3568_pcie_detach()
264 	if (sc->phy)  in rk3568_pcie_detach()
265 		phy_release(sc->phy);  in rk3568_pcie_detach()
266 	if (sc->aux)  in rk3568_pcie_detach()
267 		clk_release(sc->aux);  in rk3568_pcie_detach()
268 	if (sc->pclk)  in rk3568_pcie_detach()
269 		clk_release(sc->pclk);  in rk3568_pcie_detach()
270 	if (sc->aclk_dbi)  in rk3568_pcie_detach()
271 		clk_release(sc->aclk_dbi);  in rk3568_pcie_detach()
272 	if (sc->aclk_slv)  in rk3568_pcie_detach()
273 		clk_release(sc->aclk_slv);  in rk3568_pcie_detach()
274 	if (sc->aclk_mst)  in rk3568_pcie_detach()
275 		clk_release(sc->aclk_mst);  in rk3568_pcie_detach()
276 	if (sc->hwreset)  in rk3568_pcie_detach()
277 		hwreset_release(sc->hwreset);  in rk3568_pcie_detach()
278 	if (sc->regulator)  in rk3568_pcie_detach()
279 		regulator_release(sc->regulator);  in rk3568_pcie_detach()
280 	if (sc->irq_res)  in rk3568_pcie_detach()
281 		bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid,  in rk3568_pcie_detach()
282 		    sc->irq_res);  in rk3568_pcie_detach()
283 	if (sc->dbi_res)  in rk3568_pcie_detach()
284 		bus_release_resource(dev, SYS_RES_MEMORY, sc->dbi_rid,  in rk3568_pcie_detach()
285 		    sc->dbi_res);  in rk3568_pcie_detach()
286 	if (sc->apb_res)  in rk3568_pcie_detach()
287 		bus_release_resource(dev, SYS_RES_MEMORY, sc->apb_rid,  in rk3568_pcie_detach()
288 		    sc->apb_res);  in rk3568_pcie_detach()
298 	sc->dev = dev;  in rk3568_pcie_attach()
299 	sc->node = ofw_bus_get_node(dev);  in rk3568_pcie_attach()
302 	if ((error = ofw_bus_find_string_index(sc->node, "reg-names", "apb",  in rk3568_pcie_attach()
303 	    &sc->apb_rid))) {  in rk3568_pcie_attach()
307 	if (!(sc->apb_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,  in rk3568_pcie_attach()
308 	    &sc->apb_rid, RF_ACTIVE))) {  in rk3568_pcie_attach()
312 	if ((error = ofw_bus_find_string_index(sc->node, "reg-names", "dbi",  in rk3568_pcie_attach()
313 	    &sc->dbi_rid))) {  in rk3568_pcie_attach()
317 	if (!(sc->dw_sc.dbi_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,  in rk3568_pcie_attach()
318 	    &sc->dbi_rid, RF_ACTIVE))) {  in rk3568_pcie_attach()
323 	if (!(sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,  in rk3568_pcie_attach()
324 	    &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE))) {  in rk3568_pcie_attach()
330 	error = regulator_get_by_ofw_property(dev, 0, "vpcie3v3-supply",  in rk3568_pcie_attach()
331 	    &sc->regulator);  in rk3568_pcie_attach()
338 	if (hwreset_get_by_ofw_name(dev, 0, "pipe", &sc->hwreset)) {  in rk3568_pcie_attach()
344 	error = gpio_pin_get_by_ofw_property(dev, sc->node, "reset-gpios",  in rk3568_pcie_attach()
345 		    &sc->reset_gpio);  in rk3568_pcie_attach()
347 		device_printf(dev, "Cannot get reset-gpios\n");  in rk3568_pcie_attach()
352 	if (clk_get_by_ofw_name(dev, 0, "aclk_mst", &sc->aclk_mst)) {  in rk3568_pcie_attach()
356 	if (clk_get_by_ofw_name(dev, 0, "aclk_slv", &sc->aclk_slv)) {  in rk3568_pcie_attach()
360 	if (clk_get_by_ofw_name(dev, 0, "aclk_dbi", &sc->aclk_dbi)) {  in rk3568_pcie_attach()
364 	if (clk_get_by_ofw_name(dev, 0, "pclk", &sc->pclk)) {  in rk3568_pcie_attach()
368 	if (clk_get_by_ofw_name(dev, 0, "aux", &sc->aux)) {  in rk3568_pcie_attach()
369 		device_printf(dev, "Can not get aux clk\n");  in rk3568_pcie_attach()
374 	if (phy_get_by_ofw_name(dev, 0, "pcie-phy", &sc->phy)) {  in rk3568_pcie_attach()
375 		device_printf(dev, "Cannot get 'pcie-phy'\n");  in rk3568_pcie_attach()
383 	if ((bus_setup_intr(dev, sc->irq_res, INTR_TYPE_MISC | INTR_MPSAFE,  in rk3568_pcie_attach()
384 	    NULL, rk3568_intr, sc, &sc->irq_handle))) {  in rk3568_pcie_attach()
402 	if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)  in rk3568_pcie_probe()
404 	device_set_desc(dev, "RockChip RK3568 PCI-express controller");  in rk3568_pcie_probe()