ingenic_dwctwo.c revision 1.2
1 /* $NetBSD: ingenic_dwctwo.c,v 1.2 2014/12/23 15:13:30 macallan 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 1.2 2014/12/23 15:13:30 macallan 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 51 #include <dwc2/dwc2var.h> 52 53 #include <dwc2/dwc2.h> 54 #include "dwc2_core.h" 55 56 struct ingenic_dwc2_softc { 57 struct dwc2_softc sc_dwc2; 58 59 void *sc_ih; 60 }; 61 62 static struct dwc2_core_params ingenic_dwc2_params = { 63 .otg_cap = 0, /* HNP/SRP capable */ 64 .otg_ver = 0, /* 1.3 */ 65 .dma_enable = 1, 66 .dma_desc_enable = 0, 67 .speed = 0, /* High Speed */ 68 .enable_dynamic_fifo = 1, 69 .en_multiple_tx_fifo = 1, 70 .host_rx_fifo_size = 774, /* 774 DWORDs */ 71 .host_nperio_tx_fifo_size = 256, /* 256 DWORDs */ 72 .host_perio_tx_fifo_size = 512, /* 512 DWORDs */ 73 .max_transfer_size = 65535, 74 .max_packet_count = 511, 75 .host_channels = 8, 76 .phy_type = 1, /* UTMI */ 77 .phy_utmi_width = 8, /* 8 bits */ 78 .phy_ulpi_ddr = 0, /* Single */ 79 .phy_ulpi_ext_vbus = 0, 80 .i2c_enable = 0, 81 .ulpi_fs_ls = 0, 82 .host_support_fs_ls_low_power = 0, 83 .host_ls_low_power_phy_clk = 0, /* 48 MHz */ 84 .ts_dline = 0, 85 .reload_ctl = 0, 86 .ahbcfg = 0x10, 87 .uframe_sched = 1, 88 }; 89 90 static int ingenic_dwc2_match(device_t, struct cfdata *, void *); 91 static void ingenic_dwc2_attach(device_t, device_t, void *); 92 static void ingenic_dwc2_deferred(device_t); 93 94 CFATTACH_DECL_NEW(ingenic_dwctwo, sizeof(struct ingenic_dwc2_softc), 95 ingenic_dwc2_match, ingenic_dwc2_attach, NULL, NULL); 96 97 /* ARGSUSED */ 98 static int 99 ingenic_dwc2_match(device_t parent, struct cfdata *match, void *aux) 100 { 101 struct apbus_attach_args *aa = aux; 102 103 if (strcmp(aa->aa_name, "dwctwo") != 0) 104 return 0; 105 106 return 1; 107 } 108 109 /* ARGSUSED */ 110 static void 111 ingenic_dwc2_attach(device_t parent, device_t self, void *aux) 112 { 113 struct ingenic_dwc2_softc *sc = device_private(self); 114 struct apbus_attach_args *aa = aux; 115 uint32_t reg; 116 int error; 117 118 sc->sc_dwc2.sc_dev = self; 119 120 sc->sc_dwc2.sc_iot = aa->aa_bst; 121 sc->sc_dwc2.sc_bus.dmatag = aa->aa_dmat; 122 sc->sc_dwc2.sc_params = &ingenic_dwc2_params; 123 124 if (aa->aa_addr == 0) 125 aa->aa_addr = 0x13500000; 126 127 error = bus_space_map(aa->aa_bst, aa->aa_addr, 0x20000, 0, 128 &sc->sc_dwc2.sc_ioh); 129 if (error) { 130 aprint_error_dev(self, 131 "can't map registers for %s: %d\n", aa->aa_name, error); 132 return; 133 } 134 135 aprint_naive(": USB controller\n"); 136 aprint_normal(": USB controller\n"); 137 138 reg = readreg(JZ_USBPCR); 139 reg |= VBUSVLDEXTSEL; 140 reg |= VBUSVLDEXT; 141 reg |= USB_MODE; 142 reg |= COMMONONN; 143 reg &= ~OTG_DISABLE; 144 writereg(JZ_USBPCR, reg); 145 146 reg = readreg(JZ_USBPCR1); 147 reg |= PCR_SYNOPSYS; 148 reg |= PCR_REFCLK_CORE; 149 reg &= ~PCR_CLK_M; 150 reg |= PCR_CLK_48; 151 reg |= PCR_WORD_I_F0; 152 writereg(JZ_USBPCR1, reg); 153 154 delay(10000); 155 156 sc->sc_ih = evbmips_intr_establish(21, dwc2_intr, &sc->sc_dwc2); 157 158 if (sc->sc_ih == NULL) { 159 aprint_error_dev(self, "failed to establish interrupt %d\n", 160 21); 161 goto fail; 162 } 163 164 config_defer(self, ingenic_dwc2_deferred); 165 166 return; 167 168 fail: 169 if (sc->sc_ih) { 170 evbmips_intr_disestablish(sc->sc_ih); 171 sc->sc_ih = NULL; 172 } 173 bus_space_unmap(sc->sc_dwc2.sc_iot, sc->sc_dwc2.sc_ioh, 0x20000); 174 } 175 176 static void 177 ingenic_dwc2_deferred(device_t self) 178 { 179 struct ingenic_dwc2_softc *sc = device_private(self); 180 int error; 181 182 error = dwc2_init(&sc->sc_dwc2); 183 if (error != 0) { 184 aprint_error_dev(self, "couldn't initialize host, error=%d\n", 185 error); 186 return; 187 } 188 sc->sc_dwc2.sc_child = config_found(sc->sc_dwc2.sc_dev, 189 &sc->sc_dwc2.sc_bus, usbctlprint); 190 } 191
Indexes created Wed Oct 01 15:09:59 GMT 2025