ingenic_dme.c revision 1.1.2.2
1 1.1.2.2 skrll /* $NetBSD: ingenic_dme.c,v 1.1.2.2 2015/04/06 15:17:59 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /*- 4 1.1.2.2 skrll * Copyright (c) 2015 Michael Lorenz 5 1.1.2.2 skrll * All rights reserved. 6 1.1.2.2 skrll * 7 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 skrll * modification, are permitted provided that the following conditions 9 1.1.2.2 skrll * are met: 10 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 15 1.1.2.2 skrll * 16 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.1.2.2 skrll * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.1.2.2 skrll * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.1.2.2 skrll * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.1.2.2 skrll * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.1.2.2 skrll * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.1.2.2 skrll * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.1.2.2 skrll * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.1.2.2 skrll * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.1.2.2 skrll * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.1.2.2 skrll * POSSIBILITY OF SUCH DAMAGE. 27 1.1.2.2 skrll */ 28 1.1.2.2 skrll 29 1.1.2.2 skrll #include <sys/cdefs.h> 30 1.1.2.2 skrll __KERNEL_RCSID(0, "$NetBSD: ingenic_dme.c,v 1.1.2.2 2015/04/06 15:17:59 skrll Exp $"); 31 1.1.2.2 skrll 32 1.1.2.2 skrll #include <sys/param.h> 33 1.1.2.2 skrll #include <sys/systm.h> 34 1.1.2.2 skrll #include <sys/device.h> 35 1.1.2.2 skrll #include <sys/mutex.h> 36 1.1.2.2 skrll #include <sys/bus.h> 37 1.1.2.2 skrll #include <sys/workqueue.h> 38 1.1.2.2 skrll 39 1.1.2.2 skrll #include <mips/ingenic/ingenic_var.h> 40 1.1.2.2 skrll #include <mips/ingenic/ingenic_regs.h> 41 1.1.2.2 skrll 42 1.1.2.2 skrll #include <net/if.h> 43 1.1.2.2 skrll #include <net/if_ether.h> 44 1.1.2.2 skrll #include <net/if_media.h> 45 1.1.2.2 skrll 46 1.1.2.2 skrll #include <dev/ic/dm9000var.h> 47 1.1.2.2 skrll #include <dev/ic/dm9000reg.h> 48 1.1.2.2 skrll 49 1.1.2.2 skrll #include "opt_ingenic.h" 50 1.1.2.2 skrll 51 1.1.2.2 skrll static int ingenic_dme_match(device_t, struct cfdata *, void *); 52 1.1.2.2 skrll static void ingenic_dme_attach(device_t, device_t, void *); 53 1.1.2.2 skrll static int ingenic_dme_intr(void *); 54 1.1.2.2 skrll 55 1.1.2.2 skrll CFATTACH_DECL_NEW(ingenic_dme, sizeof(struct dme_softc), 56 1.1.2.2 skrll ingenic_dme_match, ingenic_dme_attach, NULL, NULL); 57 1.1.2.2 skrll 58 1.1.2.2 skrll #define GPIO_DME_INT 19 59 1.1.2.2 skrll #define GPIO_DME_INT_MASK (1 << GPIO_DME_INT) 60 1.1.2.2 skrll 61 1.1.2.2 skrll /* ARGSUSED */ 62 1.1.2.2 skrll static int 63 1.1.2.2 skrll ingenic_dme_match(device_t parent, struct cfdata *match, void *aux) 64 1.1.2.2 skrll { 65 1.1.2.2 skrll struct apbus_attach_args *aa = aux; 66 1.1.2.2 skrll 67 1.1.2.2 skrll if (strcmp(aa->aa_name, "dme") != 0) 68 1.1.2.2 skrll return 0; 69 1.1.2.2 skrll 70 1.1.2.2 skrll return 1; 71 1.1.2.2 skrll } 72 1.1.2.2 skrll 73 1.1.2.2 skrll /* ARGSUSED */ 74 1.1.2.2 skrll static void 75 1.1.2.2 skrll ingenic_dme_attach(device_t parent, device_t self, void *aux) 76 1.1.2.2 skrll { 77 1.1.2.2 skrll struct dme_softc *sc = device_private(self); 78 1.1.2.2 skrll struct apbus_attach_args *aa = aux; 79 1.1.2.2 skrll void *ih; 80 1.1.2.2 skrll static uint8_t enaddr[ETHER_ADDR_LEN]; 81 1.1.2.2 skrll int error; 82 1.1.2.2 skrll 83 1.1.2.2 skrll sc->sc_dev = self; 84 1.1.2.2 skrll 85 1.1.2.2 skrll sc->sc_iot = aa->aa_bst; 86 1.1.2.2 skrll sc->dme_io = JZ_DME_IO; 87 1.1.2.2 skrll sc->dme_data = JZ_DME_DATA; 88 1.1.2.2 skrll sc->sc_phy_initialized = 0; 89 1.1.2.2 skrll 90 1.1.2.2 skrll if (aa->aa_addr == 0) 91 1.1.2.2 skrll aa->aa_addr = JZ_DME_BASE; 92 1.1.2.2 skrll 93 1.1.2.2 skrll error = bus_space_map(aa->aa_bst, aa->aa_addr, 4, 0, &sc->sc_ioh); 94 1.1.2.2 skrll if (error) { 95 1.1.2.2 skrll aprint_error_dev(self, 96 1.1.2.2 skrll "can't map registers for %s: %d\n", aa->aa_name, error); 97 1.1.2.2 skrll return; 98 1.1.2.2 skrll } 99 1.1.2.2 skrll 100 1.1.2.2 skrll aprint_naive(": DM9000 Ethernet controller\n"); 101 1.1.2.2 skrll aprint_normal(": DM9000 Ethernet controller\n"); 102 1.1.2.2 skrll 103 1.1.2.2 skrll 104 1.1.2.2 skrll /* make sure the chip is powered up and not in reset */ 105 1.1.2.2 skrll gpio_as_output(1, 25); 106 1.1.2.2 skrll gpio_set(1, 25, 1); 107 1.1.2.2 skrll gpio_as_output(5, 12); 108 1.1.2.2 skrll gpio_set(5, 12, 1); 109 1.1.2.2 skrll 110 1.1.2.2 skrll /* setup pins to talk to the chip */ 111 1.1.2.2 skrll gpio_as_dev0(1, 1); 112 1.1.2.2 skrll gpio_as_dev0(0, 0); 113 1.1.2.2 skrll gpio_as_dev0(0, 1); 114 1.1.2.2 skrll gpio_as_dev0(0, 2); 115 1.1.2.2 skrll gpio_as_dev0(0, 3); 116 1.1.2.2 skrll gpio_as_dev0(0, 4); 117 1.1.2.2 skrll gpio_as_dev0(0, 5); 118 1.1.2.2 skrll gpio_as_dev0(0, 6); 119 1.1.2.2 skrll gpio_as_dev0(0, 7); 120 1.1.2.2 skrll 121 1.1.2.2 skrll gpio_as_dev0(0, 16); 122 1.1.2.2 skrll gpio_as_dev0(0, 17); 123 1.1.2.2 skrll gpio_as_dev0(0, 26); 124 1.1.2.2 skrll 125 1.1.2.2 skrll /* DM9000 interrupt is on GPIO E pin 19 */ 126 1.1.2.2 skrll gpio_as_intr_level(4, GPIO_DME_INT); 127 1.1.2.2 skrll ih = evbmips_intr_establish(13, ingenic_dme_intr, sc); 128 1.1.2.2 skrll 129 1.1.2.2 skrll if (ih == NULL) { 130 1.1.2.2 skrll aprint_error_dev(self, "failed to establish interrupt %d\n", 131 1.1.2.2 skrll 13); 132 1.1.2.2 skrll goto fail; 133 1.1.2.2 skrll } 134 1.1.2.2 skrll 135 1.1.2.2 skrll /* 136 1.1.2.2 skrll * XXX grab MAC address set by uboot 137 1.1.2.2 skrll * I'm not sure uboot will program the MAC address into the chip when 138 1.1.2.2 skrll * not netbooting, so this needs to go away 139 1.1.2.2 skrll */ 140 1.1.2.2 skrll dme_read_c(sc, DM9000_PAB0, enaddr, 6); 141 1.1.2.2 skrll dme_attach(sc, enaddr); 142 1.1.2.2 skrll return; 143 1.1.2.2 skrll fail: 144 1.1.2.2 skrll if (ih) { 145 1.1.2.2 skrll evbmips_intr_disestablish(ih); 146 1.1.2.2 skrll } 147 1.1.2.2 skrll bus_space_unmap(sc->sc_iot, sc->sc_ioh, 4); 148 1.1.2.2 skrll } 149 1.1.2.2 skrll 150 1.1.2.2 skrll static int 151 1.1.2.2 skrll ingenic_dme_intr(void *arg) 152 1.1.2.2 skrll { 153 1.1.2.2 skrll uint32_t reg; 154 1.1.2.2 skrll int ret = 0; 155 1.1.2.2 skrll 156 1.1.2.2 skrll /* see if it's us */ 157 1.1.2.2 skrll reg = readreg(JZ_GPIO_E_BASE + JZ_GPIO_FLAG); 158 1.1.2.2 skrll if (reg & GPIO_DME_INT_MASK) { 159 1.1.2.2 skrll /* yes, it's ours, handle it... */ 160 1.1.2.2 skrll ret = dme_intr(arg); 161 1.1.2.2 skrll /* ... and clear it */ 162 1.1.2.2 skrll writereg(JZ_GPIO_E_BASE + JZ_GPIO_FLAGC, GPIO_DME_INT_MASK); 163 1.1.2.2 skrll } 164 1.1.2.2 skrll return ret; 165 1.1.2.2 skrll } 166
Indexes created Sun Oct 26 18:09:56 GMT 2025