iodi.c revision 212763
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 212763 2010-09-16 20:23:22Z jchandra $"); 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/bus.h> 47#include <sys/interrupt.h> 48#include <sys/module.h> 49 50#include <machine/cpu.h> 51#include <machine/bus.h> 52#include <machine/param.h> 53#include <machine/intr_machdep.h> 54#include <machine/clock.h> /* for DELAY */ 55#include <machine/resource.h> 56 57#include <mips/rmi/board.h> 58#include <mips/rmi/pic.h> 59#include <mips/rmi/interrupt.h> 60#include <mips/rmi/msgring.h> 61#include <mips/rmi/iomap.h> 62#include <mips/rmi/rmi_mips_exts.h> 63 64#include <mips/rmi/dev/xlr/atx_cpld.h> 65#include <mips/rmi/dev/xlr/xgmac_mdio.h> 66 67extern bus_space_tag_t uart_bus_space_mem; 68 69static struct resource * 70iodi_alloc_resource(device_t, device_t, int, int *, 71 u_long, u_long, u_long, u_int); 72 73static int 74iodi_activate_resource(device_t, device_t, int, int, 75 struct resource *); 76static int 77iodi_setup_intr(device_t, device_t, struct resource *, int, 78 driver_filter_t *, driver_intr_t *, void *, void **); 79 80struct iodi_softc *iodi_softc; /* There can be only one. */ 81 82/* 83 * We will manage the Flash/PCMCIA devices in IODI for now. 84 * The NOR flash, Compact flash etc. which can be connected on 85 * various chip selects on the peripheral IO, should have a 86 * separate bus later. 87 */ 88static void 89bridge_pcmcia_ack(int irq) 90{ 91 xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_FLASH_OFFSET); 92 93 xlr_write_reg(mmio, 0x60, 0xffffffff); 94} 95 96static int 97iodi_setup_intr(device_t dev, device_t child, 98 struct resource *ires, int flags, driver_filter_t *filt, 99 driver_intr_t *intr, void *arg, void **cookiep) 100{ 101 const char *name = device_get_name(child); 102 103 if (strcmp(name, "uart") == 0) { 104 /* FIXME uart 1? */ 105 cpu_establish_hardintr("uart", filt, intr, arg, 106 PIC_UART_0_IRQ, flags, cookiep); 107 pic_setup_intr(PIC_IRT_UART_0_INDEX, PIC_UART_0_IRQ, 0x1, 1); 108 } else if (strcmp(name, "rge") == 0 || strcmp(name, "nlge") == 0) { 109 int irq; 110 111 /* This is a hack to pass in the irq */ 112 irq = (intptr_t)ires->__r_i; 113 cpu_establish_hardintr("rge", filt, intr, arg, irq, flags, 114 cookiep); 115 pic_setup_intr(irq - PIC_IRQ_BASE, irq, 0x1, 1); 116 } else if (strcmp(name, "ehci") == 0) { 117 cpu_establish_hardintr("ehci", filt, intr, arg, PIC_USB_IRQ, flags, 118 cookiep); 119 pic_setup_intr(PIC_USB_IRQ - PIC_IRQ_BASE, PIC_USB_IRQ, 0x1, 1); 120 } else if (strcmp(name, "ata") == 0) { 121 xlr_establish_intr("ata", filt, intr, arg, PIC_PCMCIA_IRQ, flags, 122 cookiep, bridge_pcmcia_ack); 123 pic_setup_intr(PIC_PCMCIA_IRQ - PIC_IRQ_BASE, PIC_PCMCIA_IRQ, 0x1, 1); 124 } 125 return (0); 126} 127 128static struct resource * 129iodi_alloc_resource(device_t bus, device_t child, int type, int *rid, 130 u_long start, u_long end, u_long count, u_int flags) 131{ 132 struct resource *res = malloc(sizeof(*res), M_DEVBUF, M_WAITOK); 133 const char *name = device_get_name(child); 134 int unit; 135 136#ifdef DEBUG 137 switch (type) { 138 case SYS_RES_IRQ: 139 device_printf(bus, "IRQ resource - for %s %lx-%lx\n", 140 device_get_nameunit(child), start, end); 141 break; 142 143 case SYS_RES_IOPORT: 144 device_printf(bus, "IOPORT resource - for %s %lx-%lx\n", 145 device_get_nameunit(child), start, end); 146 break; 147 148 case SYS_RES_MEMORY: 149 device_printf(bus, "MEMORY resource - for %s %lx-%lx\n", 150 device_get_nameunit(child), start, end); 151 break; 152 } 153#endif 154 155 if (strcmp(name, "uart") == 0) { 156 if ((unit = device_get_unit(child)) == 0) { /* uart 0 */ 157 res->r_bushandle = (xlr_io_base + XLR_IO_UART_0_OFFSET); 158 } else if (unit == 1) { 159 res->r_bushandle = (xlr_io_base + XLR_IO_UART_1_OFFSET); 160 } else 161 printf("%s: Unknown uart unit\n", __FUNCTION__); 162 163 res->r_bustag = uart_bus_space_mem; 164 } else if (strcmp(name, "ehci") == 0) { 165 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1ef24000); 166 res->r_bustag = rmi_pci_bus_space; 167 } else if (strcmp(name, "cfi") == 0) { 168 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1c000000); 169 res->r_bustag = 0; 170 } else if (strcmp(name, "ata") == 0) { 171 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1d000000); 172 res->r_bustag = rmi_pci_bus_space; /* byte swapping (not really PCI) */ 173 } 174 /* res->r_start = *rid; */ 175 return (res); 176} 177 178static int 179iodi_activate_resource(device_t bus, device_t child, int type, int rid, 180 struct resource *r) 181{ 182 return (0); 183} 184 185/* prototypes */ 186static int iodi_probe(device_t); 187static int iodi_attach(device_t); 188static int iodi_detach(device_t); 189static void iodi_identify(driver_t *, device_t); 190 191int 192iodi_probe(device_t dev) 193{ 194 return 0; 195} 196 197void 198iodi_identify(driver_t * driver, device_t parent) 199{ 200 201 BUS_ADD_CHILD(parent, 0, "iodi", 0); 202} 203 204int 205iodi_attach(device_t dev) 206{ 207 device_t tmpd; 208 int i; 209 210 /* 211 * Attach each devices 212 */ 213 device_add_child(dev, "uart", 0); 214 device_add_child(dev, "xlr_i2c", 0); 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