iodi.c revision 223562
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 223562 2011-06-26 10:07:48Z kevlo $"); 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, "rge") == 0 || 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("rge", 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 0; 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 if (xlr_board_info.gmac_block[0].enabled) { 228 tmpd = device_add_child(dev, "rge", 0); 229 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 230 231 tmpd = device_add_child(dev, "rge", 1); 232 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 233 234 tmpd = device_add_child(dev, "rge", 2); 235 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 236 237 tmpd = device_add_child(dev, "rge", 3); 238 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 239 } 240 if (xlr_board_info.gmac_block[1].enabled) { 241 if (xlr_board_info.gmac_block[1].type == XLR_GMAC) { 242 tmpd = device_add_child(dev, "rge", 4); 243 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 244 245 tmpd = device_add_child(dev, "rge", 5); 246 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 247 248 if (xlr_board_info.gmac_block[1].enabled & 0x4) { 249 tmpd = device_add_child(dev, "rge", 6); 250 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 251 } 252 253 if (xlr_board_info.gmac_block[1].enabled & 0x8) { 254 tmpd = device_add_child(dev, "rge", 7); 255 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 256 } 257 } else if (xlr_board_info.gmac_block[1].type == XLR_XGMAC) { 258#if 0 /* XGMAC not yet */ 259 tmpd = device_add_child(dev, "rge", 4); 260 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 261 262 tmpd = device_add_child(dev, "rge", 5); 263 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 264#endif 265 } else 266 device_printf(dev, "Unknown type of gmac 1\n"); 267 } 268 269 /* This is to add the new GMAC driver. The above adds the old driver, 270 which has been retained for now as the new driver is stabilized. 271 The new driver is enabled with "option nlge". Make sure that only 272 one of rge or nlge is enabled in the conf file. */ 273 for (i = 0; i < 3; i++) { 274 if (xlr_board_info.gmac_block[i].enabled == 0) 275 continue; 276 tmpd = device_add_child(dev, "nlna", i); 277 device_set_ivars(tmpd, &xlr_board_info.gmac_block[i]); 278 } 279 bus_generic_probe(dev); 280 bus_generic_attach(dev); 281 return 0; 282} 283 284int 285iodi_detach(device_t dev) 286{ 287 device_t nlna_dev; 288 int error, i, ret; 289 290 error = 0; 291 ret = 0; 292 for (i = 0; i < 3; i++) { 293 nlna_dev = device_find_child(dev, "nlna", i); 294 if (nlna_dev != NULL) 295 error = bus_generic_detach(nlna_dev); 296 if (error) 297 ret = error; 298 } 299 return ret; 300} 301 302static device_method_t iodi_methods[] = { 303 DEVMETHOD(device_probe, iodi_probe), 304 DEVMETHOD(device_attach, iodi_attach), 305 DEVMETHOD(device_detach, iodi_detach), 306 DEVMETHOD(device_identify, iodi_identify), 307 DEVMETHOD(bus_alloc_resource, iodi_alloc_resource), 308 DEVMETHOD(bus_activate_resource, iodi_activate_resource), 309 DEVMETHOD(bus_add_child, bus_generic_add_child), 310 DEVMETHOD(bus_setup_intr, iodi_setup_intr), 311 {0, 0}, 312}; 313 314static driver_t iodi_driver = { 315 "iodi", 316 iodi_methods, 317 1 /* no softc */ 318}; 319static devclass_t iodi_devclass; 320 321DRIVER_MODULE(iodi, nexus, iodi_driver, iodi_devclass, 0, 0); 322