dwc2_fdt.c revision 1.2.2.3
1 1.2.2.3 pgoyette /* $NetBSD: dwc2_fdt.c,v 1.2.2.3 2018/09/06 06:55:49 pgoyette Exp $ */ 2 1.2.2.2 pgoyette 3 1.2.2.2 pgoyette /*- 4 1.2.2.2 pgoyette * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.2.2.2 pgoyette * All rights reserved. 6 1.2.2.2 pgoyette * 7 1.2.2.2 pgoyette * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 pgoyette * by Nick Hudson 9 1.2.2.2 pgoyette * 10 1.2.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 pgoyette * modification, are permitted provided that the following conditions 12 1.2.2.2 pgoyette * are met: 13 1.2.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 pgoyette * documentation and/or other materials provided with the distribution. 18 1.2.2.2 pgoyette * 19 1.2.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.2.2 pgoyette * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.2.2 pgoyette * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.2.2 pgoyette * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.2.2 pgoyette * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.2.2 pgoyette * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.2.2 pgoyette * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.2.2 pgoyette * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.2.2 pgoyette * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.2.2 pgoyette * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.2.2 pgoyette * POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 pgoyette */ 31 1.2.2.2 pgoyette 32 1.2.2.2 pgoyette #include <sys/cdefs.h> 33 1.2.2.3 pgoyette __KERNEL_RCSID(0, "$NetBSD: dwc2_fdt.c,v 1.2.2.3 2018/09/06 06:55:49 pgoyette Exp $"); 34 1.2.2.2 pgoyette 35 1.2.2.2 pgoyette #include <sys/param.h> 36 1.2.2.2 pgoyette #include <sys/systm.h> 37 1.2.2.2 pgoyette #include <sys/device.h> 38 1.2.2.2 pgoyette #include <sys/mutex.h> 39 1.2.2.2 pgoyette #include <sys/bus.h> 40 1.2.2.2 pgoyette #include <sys/workqueue.h> 41 1.2.2.2 pgoyette 42 1.2.2.2 pgoyette #include <dev/fdt/fdtvar.h> 43 1.2.2.2 pgoyette 44 1.2.2.2 pgoyette #include <dev/usb/usb.h> 45 1.2.2.2 pgoyette #include <dev/usb/usbdi.h> 46 1.2.2.2 pgoyette #include <dev/usb/usbdivar.h> 47 1.2.2.2 pgoyette #include <dev/usb/usb_mem.h> 48 1.2.2.2 pgoyette 49 1.2.2.2 pgoyette #include <dwc2/dwc2var.h> 50 1.2.2.2 pgoyette 51 1.2.2.2 pgoyette #include <dwc2/dwc2.h> 52 1.2.2.2 pgoyette #include "dwc2_core.h" 53 1.2.2.2 pgoyette 54 1.2.2.2 pgoyette struct dwc2_fdt_softc { 55 1.2.2.2 pgoyette struct dwc2_softc sc_dwc2; 56 1.2.2.2 pgoyette 57 1.2.2.2 pgoyette struct dwc2_core_params sc_params; 58 1.2.2.2 pgoyette 59 1.2.2.2 pgoyette void *sc_ih; 60 1.2.2.2 pgoyette int sc_phandle; 61 1.2.2.2 pgoyette }; 62 1.2.2.2 pgoyette 63 1.2.2.2 pgoyette static int dwc2_fdt_match(device_t, struct cfdata *, void *); 64 1.2.2.2 pgoyette static void dwc2_fdt_attach(device_t, device_t, void *); 65 1.2.2.2 pgoyette static void dwc2_fdt_deferred(device_t); 66 1.2.2.2 pgoyette 67 1.2.2.2 pgoyette static void dwc2_fdt_rockchip_params(struct dwc2_fdt_softc *, struct dwc2_core_params *); 68 1.2.2.2 pgoyette 69 1.2.2.2 pgoyette struct dwc2_fdt_config { 70 1.2.2.2 pgoyette void (*params)(struct dwc2_fdt_softc *, struct dwc2_core_params *); 71 1.2.2.2 pgoyette }; 72 1.2.2.2 pgoyette 73 1.2.2.2 pgoyette static const struct dwc2_fdt_config dwc2_fdt_rk3066_config = { 74 1.2.2.2 pgoyette .params = dwc2_fdt_rockchip_params, 75 1.2.2.2 pgoyette }; 76 1.2.2.2 pgoyette 77 1.2.2.2 pgoyette static const struct dwc2_fdt_config dwc2_fdt_generic_config = { 78 1.2.2.2 pgoyette }; 79 1.2.2.2 pgoyette 80 1.2.2.2 pgoyette static const struct of_compat_data compat_data[] = { 81 1.2.2.2 pgoyette { "rockchip,rk3066-usb", (uintptr_t)&dwc2_fdt_rk3066_config }, 82 1.2.2.2 pgoyette { "snps,dwc2", (uintptr_t)&dwc2_fdt_generic_config }, 83 1.2.2.2 pgoyette { NULL } 84 1.2.2.2 pgoyette }; 85 1.2.2.2 pgoyette 86 1.2.2.2 pgoyette CFATTACH_DECL_NEW(dwc2_fdt, sizeof(struct dwc2_fdt_softc), 87 1.2.2.2 pgoyette dwc2_fdt_match, dwc2_fdt_attach, NULL, NULL); 88 1.2.2.2 pgoyette 89 1.2.2.2 pgoyette /* ARGSUSED */ 90 1.2.2.2 pgoyette static int 91 1.2.2.2 pgoyette dwc2_fdt_match(device_t parent, struct cfdata *match, void *aux) 92 1.2.2.2 pgoyette { 93 1.2.2.2 pgoyette struct fdt_attach_args * const faa = aux; 94 1.2.2.2 pgoyette 95 1.2.2.2 pgoyette return of_match_compat_data(faa->faa_phandle, compat_data); 96 1.2.2.2 pgoyette } 97 1.2.2.2 pgoyette 98 1.2.2.2 pgoyette /* ARGSUSED */ 99 1.2.2.2 pgoyette static void 100 1.2.2.2 pgoyette dwc2_fdt_attach(device_t parent, device_t self, void *aux) 101 1.2.2.2 pgoyette { 102 1.2.2.2 pgoyette struct dwc2_fdt_softc *sc = device_private(self); 103 1.2.2.2 pgoyette struct fdt_attach_args * const faa = aux; 104 1.2.2.2 pgoyette const int phandle = faa->faa_phandle; 105 1.2.2.2 pgoyette const struct dwc2_fdt_config *conf = 106 1.2.2.2 pgoyette (void *)of_search_compatible(phandle, compat_data)->data; 107 1.2.2.2 pgoyette char intrstr[128]; 108 1.2.2.2 pgoyette struct fdtbus_phy *phy; 109 1.2.2.2 pgoyette struct clk *clk; 110 1.2.2.2 pgoyette bus_addr_t addr; 111 1.2.2.2 pgoyette bus_size_t size; 112 1.2.2.2 pgoyette int error; 113 1.2.2.2 pgoyette 114 1.2.2.2 pgoyette const char *dr_mode = fdtbus_get_string(phandle, "dr_mode"); 115 1.2.2.2 pgoyette if (dr_mode == NULL || strcmp(dr_mode, "host") != 0) { 116 1.2.2.2 pgoyette aprint_error(": mode '%s' not supported\n", dr_mode); 117 1.2.2.2 pgoyette return; 118 1.2.2.2 pgoyette } 119 1.2.2.2 pgoyette 120 1.2.2.2 pgoyette if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 121 1.2.2.2 pgoyette aprint_error(": couldn't get registers\n"); 122 1.2.2.2 pgoyette return; 123 1.2.2.2 pgoyette } 124 1.2.2.2 pgoyette 125 1.2.2.2 pgoyette clk = fdtbus_clock_get(phandle, "otg"); 126 1.2.2.2 pgoyette if (clk == NULL || clk_enable(clk) != 0) { 127 1.2.2.2 pgoyette aprint_error(": couldn't enable otg clock\n"); 128 1.2.2.2 pgoyette return; 129 1.2.2.2 pgoyette } 130 1.2.2.2 pgoyette 131 1.2.2.2 pgoyette /* Enable optional phy */ 132 1.2.2.2 pgoyette phy = fdtbus_phy_get(phandle, "usb2-phy"); 133 1.2.2.2 pgoyette if (phy && fdtbus_phy_enable(phy, true) != 0) { 134 1.2.2.2 pgoyette aprint_error(": couldn't enable phy\n"); 135 1.2.2.2 pgoyette return; 136 1.2.2.2 pgoyette } 137 1.2.2.2 pgoyette 138 1.2.2.2 pgoyette sc->sc_phandle = phandle; 139 1.2.2.2 pgoyette sc->sc_dwc2.sc_dev = self; 140 1.2.2.2 pgoyette sc->sc_dwc2.sc_iot = faa->faa_bst; 141 1.2.2.2 pgoyette sc->sc_dwc2.sc_bus.ub_dmatag = faa->faa_dmat; 142 1.2.2.2 pgoyette 143 1.2.2.2 pgoyette error = bus_space_map(faa->faa_bst, addr, size, 0, &sc->sc_dwc2.sc_ioh); 144 1.2.2.2 pgoyette if (error) { 145 1.2.2.2 pgoyette aprint_error(": couldn't map device\n"); 146 1.2.2.2 pgoyette return; 147 1.2.2.2 pgoyette } 148 1.2.2.2 pgoyette 149 1.2.2.2 pgoyette if (conf->params) { 150 1.2.2.2 pgoyette conf->params(sc, &sc->sc_params); 151 1.2.2.2 pgoyette sc->sc_dwc2.sc_params = &sc->sc_params; 152 1.2.2.2 pgoyette } 153 1.2.2.2 pgoyette 154 1.2.2.2 pgoyette if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) { 155 1.2.2.2 pgoyette aprint_error(": failed to decode interrupt\n"); 156 1.2.2.2 pgoyette return; 157 1.2.2.2 pgoyette } 158 1.2.2.2 pgoyette 159 1.2.2.2 pgoyette aprint_naive("\n"); 160 1.2.2.2 pgoyette aprint_normal(": DesignWare USB2 OTG\n"); 161 1.2.2.2 pgoyette 162 1.2.2.2 pgoyette sc->sc_ih = fdtbus_intr_establish(phandle, 0, IPL_VM, FDT_INTR_MPSAFE, 163 1.2.2.2 pgoyette dwc2_intr, &sc->sc_dwc2); 164 1.2.2.2 pgoyette 165 1.2.2.2 pgoyette if (sc->sc_ih == NULL) { 166 1.2.2.2 pgoyette aprint_error_dev(self, "failed to establish interrupt %s\n", 167 1.2.2.2 pgoyette intrstr); 168 1.2.2.2 pgoyette goto fail; 169 1.2.2.2 pgoyette } 170 1.2.2.2 pgoyette aprint_normal_dev(self, "interrupting on %s\n", intrstr); 171 1.2.2.2 pgoyette config_interrupts(self, dwc2_fdt_deferred); 172 1.2.2.2 pgoyette 173 1.2.2.2 pgoyette return; 174 1.2.2.2 pgoyette 175 1.2.2.2 pgoyette fail: 176 1.2.2.2 pgoyette if (sc->sc_ih) { 177 1.2.2.2 pgoyette fdtbus_intr_disestablish(sc->sc_phandle, sc->sc_ih); 178 1.2.2.2 pgoyette sc->sc_ih = NULL; 179 1.2.2.2 pgoyette } 180 1.2.2.2 pgoyette bus_space_unmap(sc->sc_dwc2.sc_iot, sc->sc_dwc2.sc_ioh, size); 181 1.2.2.2 pgoyette } 182 1.2.2.2 pgoyette 183 1.2.2.2 pgoyette static void 184 1.2.2.2 pgoyette dwc2_fdt_deferred(device_t self) 185 1.2.2.2 pgoyette { 186 1.2.2.2 pgoyette struct dwc2_fdt_softc *sc = device_private(self); 187 1.2.2.2 pgoyette int error; 188 1.2.2.2 pgoyette 189 1.2.2.2 pgoyette error = dwc2_init(&sc->sc_dwc2); 190 1.2.2.2 pgoyette if (error != 0) { 191 1.2.2.2 pgoyette aprint_error_dev(self, "couldn't initialize host, error=%d\n", 192 1.2.2.2 pgoyette error); 193 1.2.2.2 pgoyette return; 194 1.2.2.2 pgoyette } 195 1.2.2.2 pgoyette sc->sc_dwc2.sc_child = config_found(sc->sc_dwc2.sc_dev, 196 1.2.2.2 pgoyette &sc->sc_dwc2.sc_bus, usbctlprint); 197 1.2.2.2 pgoyette } 198 1.2.2.2 pgoyette 199 1.2.2.2 pgoyette static void 200 1.2.2.2 pgoyette dwc2_fdt_rockchip_params(struct dwc2_fdt_softc *sc, struct dwc2_core_params *params) 201 1.2.2.2 pgoyette { 202 1.2.2.2 pgoyette dwc2_set_all_params(params, -1); 203 1.2.2.2 pgoyette 204 1.2.2.2 pgoyette params->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; 205 1.2.2.2 pgoyette params->host_rx_fifo_size = 525; 206 1.2.2.2 pgoyette params->host_nperio_tx_fifo_size = 128; 207 1.2.2.2 pgoyette params->host_perio_tx_fifo_size = 256; 208 1.2.2.2 pgoyette params->ahbcfg = GAHBCFG_HBSTLEN_INCR16 << GAHBCFG_HBSTLEN_SHIFT; 209 1.2.2.2 pgoyette } 210
Indexes created Wed Oct 01 15:09:59 GMT 2025