1 /* $NetBSD: ingenic_dwctwo.c,v 1.15 2021/08/07 16:18:59 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: ingenic_dwctwo.c,v 1.15 2021/08/07 16:18:59 thorpej Exp $"); 31 32 /* 33 * adapted from bcm2835_dwctwo.c 34 */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/device.h> 39 #include <sys/mutex.h> 40 #include <sys/bus.h> 41 #include <sys/workqueue.h> 42 43 #include <mips/ingenic/ingenic_var.h> 44 #include <mips/ingenic/ingenic_regs.h> 45 46 #include <dev/usb/usb.h> 47 #include <dev/usb/usbdi.h> 48 #include <dev/usb/usbdivar.h> 49 #include <dev/usb/usb_mem.h> 50 #include <dev/usb/usbdevs.h> 51 52 #include <dwc2/dwc2var.h> 53 #include <dwc2/dwc2.h> 54 #include "dwc2_core.h" 55 56 #include "opt_ingenic.h" 57 58 struct ingenic_dwc2_softc { 59 struct dwc2_softc sc_dwc2; 60 61 void *sc_ih; 62 }; 63 64 static struct dwc2_core_params ingenic_dwc2_params = { 65 .otg_cap = -1, /* HNP/SRP capable */ 66 .otg_ver = -1, /* 1.3 */ 67 .dma_enable = 1, 68 .dma_desc_enable = 0, 69 .speed = -1, /* High Speed */ 70 .enable_dynamic_fifo = -1, 71 .en_multiple_tx_fifo = -1, 72 .host_rx_fifo_size = 1024, /* 1024 DWORDs */ 73 .host_nperio_tx_fifo_size = 1024, /* 1024 DWORDs */ 74 .host_perio_tx_fifo_size = 1024, /* 1024 DWORDs */ 75 .max_transfer_size = -1, 76 .max_packet_count = -1, 77 .host_channels = -1, 78 .phy_type = -1, /* UTMI */ 79 .phy_utmi_width = -1, /* 16 bits */ 80 .phy_ulpi_ddr = -1, /* Single */ 81 .phy_ulpi_ext_vbus = -1, 82 .i2c_enable = -1, 83 .ulpi_fs_ls = -1, 84 .host_support_fs_ls_low_power = -1, 85 .host_ls_low_power_phy_clk = -1, /* 48 MHz */ 86 .ts_dline = -1, 87 .reload_ctl = -1, 88 .ahbcfg = -1, 89 .uframe_sched = 0, 90 .external_id_pin_ctl = -1, 91 .hibernation = -1, 92 }; 93 94 static int ingenic_dwc2_match(device_t, struct cfdata *, void *); 95 static void ingenic_dwc2_attach(device_t, device_t, void *); 96 static void ingenic_dwc2_deferred(device_t); 97 98 CFATTACH_DECL_NEW(ingenic_dwctwo, sizeof(struct ingenic_dwc2_softc), 99 ingenic_dwc2_match, ingenic_dwc2_attach, NULL, NULL); 100 101 /* ARGSUSED */ 102 static int 103 ingenic_dwc2_match(device_t parent, struct cfdata *match, void *aux) 104 { 105 struct apbus_attach_args *aa = aux; 106 107 if (strcmp(aa->aa_name, "dwctwo") != 0) 108 return 0; 109 110 return 1; 111 } 112 113 /* ARGSUSED */ 114 static void 115 ingenic_dwc2_attach(device_t parent, device_t self, void *aux) 116 { 117 struct ingenic_dwc2_softc *sc = device_private(self); 118 struct apbus_attach_args *aa = aux; 119 uint32_t reg; 120 int error; 121 122 sc->sc_dwc2.sc_dev = self; 123 124 sc->sc_dwc2.sc_iot = aa->aa_bst; 125 sc->sc_dwc2.sc_bus.ub_dmatag = aa->aa_dmat; 126 sc->sc_dwc2.sc_params = &ingenic_dwc2_params; 127 128 if (aa->aa_addr == 0) 129 aa->aa_addr = JZ_DWC2_BASE; 130 131 error = bus_space_map(aa->aa_bst, aa->aa_addr, 0x20000, 0, 132 &sc->sc_dwc2.sc_ioh); 133 if (error) { 134 aprint_error_dev(self, 135 "can't map registers for %s: %d\n", aa->aa_name, error); 136 return; 137 } 138 139 aprint_naive(": USB OTG controller\n"); 140 aprint_normal(": USB OTG controller\n"); 141 142 /* reset PHY, flash LED */ 143 gpio_set(5, 15, 0); 144 delay(250000); 145 gpio_set(5, 15, 1); 146 147 reg = readreg(JZ_USBPCR); 148 reg |= PCR_VBUSVLDEXTSEL; 149 reg |= PCR_VBUSVLDEXT; 150 reg |= PCR_USB_MODE; 151 reg |= PCR_COMMONONN; 152 reg &= ~PCR_OTG_DISABLE; 153 writereg(JZ_USBPCR, reg); 154 #ifdef INGENIC_DEBUG 155 printf("JZ_USBPCR %08x\n", reg); 156 #endif 157 158 reg = readreg(JZ_USBPCR1); 159 #ifdef INGENIC_DEBUG 160 printf("JZ_USBPCR1 %08x\n", reg); 161 #endif 162 reg &= ~0xf0000000; 163 reg |= PCR_SYNOPSYS; 164 reg |= PCR_REFCLK_CORE; 165 reg &= ~PCR_CLK_M; 166 reg |= PCR_CLK_48; 167 reg |= PCR_WORD_I_F0; 168 reg |= PCR_WORD_I_F1; 169 writereg(JZ_USBPCR1, reg); 170 #ifdef INGENIC_DEBUG 171 printf("JZ_USBPCR1 %08x\n", reg); 172 printf("JZ_USBRDT %08x\n", readreg(JZ_USBRDT)); 173 #endif 174 175 writereg(JZ_USBVBFIL, 0); 176 delay(10000); 177 178 reg = readreg(JZ_USBPCR); 179 reg |= PCR_POR; 180 writereg(JZ_USBPCR, reg); 181 delay(1000); 182 reg &= ~PCR_POR; 183 writereg(JZ_USBPCR, reg); 184 185 delay(10000); 186 187 /* wake up the USB part */ 188 reg = readreg(JZ_OPCR); 189 reg |= OPCR_SPENDN0; 190 writereg(JZ_OPCR, reg); 191 192 sc->sc_ih = evbmips_intr_establish(aa->aa_irq, dwc2_intr, &sc->sc_dwc2); 193 194 if (sc->sc_ih == NULL) { 195 aprint_error_dev(self, "failed to establish interrupt %d\n", 196 aa->aa_irq); 197 goto fail; 198 } 199 200 config_defer(self, ingenic_dwc2_deferred); 201 202 return; 203 204 fail: 205 if (sc->sc_ih) { 206 evbmips_intr_disestablish(sc->sc_ih); 207 sc->sc_ih = NULL; 208 } 209 bus_space_unmap(sc->sc_dwc2.sc_iot, sc->sc_dwc2.sc_ioh, 0x20000); 210 } 211 212 static void 213 ingenic_dwc2_deferred(device_t self) 214 { 215 struct ingenic_dwc2_softc *sc = device_private(self); 216 int error; 217 218 error = dwc2_init(&sc->sc_dwc2); 219 if (error != 0) { 220 aprint_error_dev(self, "couldn't initialize host, error=%d\n", 221 error); 222 return; 223 } 224 sc->sc_dwc2.sc_child = config_found(sc->sc_dwc2.sc_dev, 225 &sc->sc_dwc2.sc_bus, usbctlprint, CFARGS_NONE); 226 } 227
Indexes created Tue Sep 30 20:09:53 GMT 2025