iodi.c revision 287471
1/*- 2 * Copyright (c) 2003-2009 RMI Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of RMI Corporation, nor the names of its contributors, 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * RMI_BSD 30 */ 31 32#include <sys/cdefs.h> 33__FBSDID("$FreeBSD: head/sys/mips/rmi/iodi.c 287471 2015-09-04 19:57:28Z sbruno $"); 34 35#define __RMAN_RESOURCE_VISIBLE 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/bus.h> 39#include <sys/kernel.h> 40#include <sys/lock.h> 41#include <sys/mutex.h> 42#include <sys/reboot.h> 43#include <sys/rman.h> 44#include <sys/types.h> 45#include <sys/malloc.h> 46#include <sys/interrupt.h> 47#include <sys/module.h> 48 49#include <machine/cpu.h> 50#include <machine/bus.h> 51#include <machine/param.h> 52#include <machine/intr_machdep.h> 53#include <machine/clock.h> /* for DELAY */ 54#include <machine/resource.h> 55 56#include <mips/rmi/board.h> 57#include <mips/rmi/pic.h> 58#include <mips/rmi/interrupt.h> 59#include <mips/rmi/msgring.h> 60#include <mips/rmi/iomap.h> 61#include <mips/rmi/rmi_mips_exts.h> 62 63#include <mips/rmi/dev/xlr/atx_cpld.h> 64#include <mips/rmi/dev/xlr/xgmac_mdio.h> 65 66extern bus_space_tag_t uart_bus_space_mem; 67 68static struct resource * 69iodi_alloc_resource(device_t, device_t, int, int *, 70 u_long, u_long, u_long, u_int); 71 72static int 73iodi_activate_resource(device_t, device_t, int, int, 74 struct resource *); 75static int 76iodi_setup_intr(device_t, device_t, struct resource *, int, 77 driver_filter_t *, driver_intr_t *, void *, void **); 78 79struct iodi_softc *iodi_softc; /* There can be only one. */ 80 81/* 82 * We will manage the Flash/PCMCIA devices in IODI for now. 83 * The NOR flash, Compact flash etc. which can be connected on 84 * various chip selects on the peripheral IO, should have a 85 * separate bus later. 86 */ 87static void 88bridge_pcmcia_ack(int irq) 89{ 90 xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_FLASH_OFFSET); 91 92 xlr_write_reg(mmio, 0x60, 0xffffffff); 93} 94 95static int 96iodi_setup_intr(device_t dev, device_t child, 97 struct resource *ires, int flags, driver_filter_t *filt, 98 driver_intr_t *intr, void *arg, void **cookiep) 99{ 100 const char *name = device_get_name(child); 101 102 if (strcmp(name, "uart") == 0) { 103 /* FIXME uart 1? */ 104 cpu_establish_hardintr("uart", filt, intr, arg, 105 PIC_UART_0_IRQ, flags, cookiep); 106 pic_setup_intr(PIC_IRT_UART_0_INDEX, PIC_UART_0_IRQ, 0x1, 1); 107 } else if (strcmp(name, "nlge") == 0) { 108 int irq; 109 110 /* This is a hack to pass in the irq */ 111 irq = (intptr_t)ires->__r_i; 112 cpu_establish_hardintr("nlge", filt, intr, arg, irq, flags, 113 cookiep); 114 pic_setup_intr(irq - PIC_IRQ_BASE, irq, 0x1, 1); 115 } else if (strcmp(name, "ehci") == 0) { 116 cpu_establish_hardintr("ehci", filt, intr, arg, PIC_USB_IRQ, flags, 117 cookiep); 118 pic_setup_intr(PIC_USB_IRQ - PIC_IRQ_BASE, PIC_USB_IRQ, 0x1, 1); 119 } else if (strcmp(name, "ata") == 0) { 120 xlr_establish_intr("ata", filt, intr, arg, PIC_PCMCIA_IRQ, flags, 121 cookiep, bridge_pcmcia_ack); 122 pic_setup_intr(PIC_PCMCIA_IRQ - PIC_IRQ_BASE, PIC_PCMCIA_IRQ, 0x1, 1); 123 } 124 return (0); 125} 126 127static struct resource * 128iodi_alloc_resource(device_t bus, device_t child, int type, int *rid, 129 u_long start, u_long end, u_long count, u_int flags) 130{ 131 struct resource *res = malloc(sizeof(*res), M_DEVBUF, M_WAITOK); 132 const char *name = device_get_name(child); 133 int unit; 134 135#ifdef DEBUG 136 switch (type) { 137 case SYS_RES_IRQ: 138 device_printf(bus, "IRQ resource - for %s %lx-%lx\n", 139 device_get_nameunit(child), start, end); 140 break; 141 142 case SYS_RES_IOPORT: 143 device_printf(bus, "IOPORT resource - for %s %lx-%lx\n", 144 device_get_nameunit(child), start, end); 145 break; 146 147 case SYS_RES_MEMORY: 148 device_printf(bus, "MEMORY resource - for %s %lx-%lx\n", 149 device_get_nameunit(child), start, end); 150 break; 151 } 152#endif 153 154 if (strcmp(name, "uart") == 0) { 155 if ((unit = device_get_unit(child)) == 0) { /* uart 0 */ 156 res->r_bushandle = (xlr_io_base + XLR_IO_UART_0_OFFSET); 157 } else if (unit == 1) { 158 res->r_bushandle = (xlr_io_base + XLR_IO_UART_1_OFFSET); 159 } else 160 printf("%s: Unknown uart unit\n", __FUNCTION__); 161 162 res->r_bustag = uart_bus_space_mem; 163 } else if (strcmp(name, "ehci") == 0) { 164 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1ef24000); 165 res->r_bustag = rmi_pci_bus_space; 166 } else if (strcmp(name, "cfi") == 0) { 167 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1c000000); 168 res->r_bustag = 0; 169 } else if (strcmp(name, "ata") == 0) { 170 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1d000000); 171 res->r_bustag = rmi_pci_bus_space; /* byte swapping (not really PCI) */ 172 } 173 /* res->r_start = *rid; */ 174 return (res); 175} 176 177static int 178iodi_activate_resource(device_t bus, device_t child, int type, int rid, 179 struct resource *r) 180{ 181 return (0); 182} 183 184/* prototypes */ 185static int iodi_probe(device_t); 186static int iodi_attach(device_t); 187static int iodi_detach(device_t); 188static void iodi_identify(driver_t *, device_t); 189 190int 191iodi_probe(device_t dev) 192{ 193 return (BUS_PROBE_NOWILDCARD); 194} 195 196void 197iodi_identify(driver_t * driver, device_t parent) 198{ 199 200 BUS_ADD_CHILD(parent, 0, "iodi", 0); 201} 202 203int 204iodi_attach(device_t dev) 205{ 206 device_t tmpd; 207 int i; 208 209 /* 210 * Attach each devices 211 */ 212 device_add_child(dev, "uart", 0); 213 device_add_child(dev, "xlr_i2c", 0); 214 device_add_child(dev, "xlr_i2c", 1); 215 device_add_child(dev, "pcib", 0); 216 device_add_child(dev, "rmisec", -1); 217 218 if (xlr_board_info.usb) 219 device_add_child(dev, "ehci", 0); 220 221 if (xlr_board_info.cfi) 222 device_add_child(dev, "cfi", 0); 223 224 if (xlr_board_info.ata) 225 device_add_child(dev, "ata", 0); 226 227 for (i = 0; i < 3; i++) { 228 if (xlr_board_info.gmac_block[i].enabled == 0) 229 continue; 230 tmpd = device_add_child(dev, "nlna", i); 231 device_set_ivars(tmpd, &xlr_board_info.gmac_block[i]); 232 } 233 234 bus_generic_probe(dev); 235 bus_generic_attach(dev); 236 return 0; 237} 238 239int 240iodi_detach(device_t dev) 241{ 242 device_t nlna_dev; 243 int error, i, ret; 244 245 error = 0; 246 ret = 0; 247 for (i = 0; i < 3; i++) { 248 nlna_dev = device_find_child(dev, "nlna", i); 249 if (nlna_dev != NULL) 250 error = bus_generic_detach(nlna_dev); 251 if (error) 252 ret = error; 253 } 254 return ret; 255} 256 257static device_method_t iodi_methods[] = { 258 DEVMETHOD(device_probe, iodi_probe), 259 DEVMETHOD(device_attach, iodi_attach), 260 DEVMETHOD(device_detach, iodi_detach), 261 DEVMETHOD(device_identify, iodi_identify), 262 DEVMETHOD(bus_alloc_resource, iodi_alloc_resource), 263 DEVMETHOD(bus_activate_resource, iodi_activate_resource), 264 DEVMETHOD(bus_add_child, bus_generic_add_child), 265 DEVMETHOD(bus_setup_intr, iodi_setup_intr), 266 {0, 0}, 267}; 268 269static driver_t iodi_driver = { 270 "iodi", 271 iodi_methods, 272 1 /* no softc */ 273}; 274static devclass_t iodi_devclass; 275 276DRIVER_MODULE(iodi, nexus, iodi_driver, iodi_devclass, 0, 0); 277