iodi.c revision 211923
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 211923 2010-08-28 07:58:10Z 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/types.h> 44#include <sys/malloc.h> 45#include <sys/bus.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/bus.h> 52#include <machine/intr_machdep.h> 53#include <mips/rmi/iomap.h> 54#include <mips/rmi/pic.h> 55#include <mips/rmi/shared_structs.h> 56#include <mips/rmi/board.h> 57#include <sys/rman.h> 58 59 60#include <machine/param.h> 61#include <machine/intr_machdep.h> 62#include <machine/clock.h> /* for DELAY */ 63#include <machine/bus.h> 64#include <machine/resource.h> 65#include <mips/rmi/interrupt.h> 66#include <mips/rmi/msgring.h> 67#include <mips/rmi/iomap.h> 68#include <mips/rmi/debug.h> 69#include <mips/rmi/pic.h> 70#include <mips/rmi/xlrconfig.h> 71#include <mips/rmi/shared_structs.h> 72#include <mips/rmi/board.h> 73 74#include <mips/rmi/dev/xlr/atx_cpld.h> 75#include <mips/rmi/dev/xlr/xgmac_mdio.h> 76 77extern bus_space_tag_t uart_bus_space_mem; 78 79static struct resource * 80iodi_alloc_resource(device_t, device_t, int, int *, 81 u_long, u_long, u_long, u_int); 82 83static int 84iodi_activate_resource(device_t, device_t, int, int, 85 struct resource *); 86static int 87iodi_setup_intr(device_t, device_t, struct resource *, int, 88 driver_filter_t *, driver_intr_t *, void *, void **); 89 90struct iodi_softc *iodi_softc; /* There can be only one. */ 91 92/* 93 * We will manage the Flash/PCMCIA devices in IODI for now. 94 * The NOR flash, Compact flash etc. which can be connected on 95 * various chip selects on the peripheral IO, should have a 96 * separate bus later. 97 */ 98static void 99bridge_pcmcia_ack(int irq) 100{ 101 xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_FLASH_OFFSET); 102 103 xlr_write_reg(mmio, 0x60, 0xffffffff); 104} 105 106static int 107iodi_setup_intr(device_t dev, device_t child, 108 struct resource *ires, int flags, driver_filter_t * filt, 109 driver_intr_t *intr, void *arg, void **cookiep) 110{ 111 112 if (strcmp(device_get_name(child), "uart") == 0) { 113 /* FIXME uart 1? */ 114 cpu_establish_hardintr("uart", filt, intr, arg, 115 PIC_UART_0_IRQ, flags, cookiep); 116 pic_setup_intr(PIC_IRT_UART_0_INDEX, PIC_UART_0_IRQ, 0x1, 0); 117 } else if (strcmp(device_get_name(child), "rge") == 0) { 118 int irq; 119 120 /* This is a hack to pass in the irq */ 121 irq = (intptr_t)ires->__r_i; 122 cpu_establish_hardintr("rge", filt, intr, arg, irq, flags, 123 cookiep); 124 pic_setup_intr(irq - PIC_IRQ_BASE, irq, 0x1, 0); 125 } else if (strcmp(device_get_name(child), "ehci") == 0) { 126 cpu_establish_hardintr("ehci", filt, intr, arg, PIC_USB_IRQ, flags, 127 cookiep); 128 pic_setup_intr(PIC_USB_IRQ - PIC_IRQ_BASE, PIC_USB_IRQ, 0x1, 0); 129 } else if (strcmp(device_get_name(child), "ata") == 0) { 130 xlr_establish_intr("ata", filt, intr, arg, PIC_PCMCIA_IRQ, flags, 131 cookiep, bridge_pcmcia_ack); 132 pic_setup_intr(PIC_PCMCIA_IRQ - PIC_IRQ_BASE, PIC_PCMCIA_IRQ, 0x1, 0); 133 } 134 135 return (0); 136} 137 138static struct resource * 139iodi_alloc_resource(device_t bus, device_t child, int type, int *rid, 140 u_long start, u_long end, u_long count, u_int flags) 141{ 142 struct resource *res = malloc(sizeof(*res), M_DEVBUF, M_WAITOK); 143 int unit; 144 145#ifdef DEBUG 146 switch (type) { 147 case SYS_RES_IRQ: 148 device_printf(bus, "IRQ resource - for %s %lx-%lx\n", 149 device_get_nameunit(child), start, end); 150 break; 151 152 case SYS_RES_IOPORT: 153 device_printf(bus, "IOPORT resource - for %s %lx-%lx\n", 154 device_get_nameunit(child), start, end); 155 break; 156 157 case SYS_RES_MEMORY: 158 device_printf(bus, "MEMORY resource - for %s %lx-%lx\n", 159 device_get_nameunit(child), start, end); 160 break; 161 } 162#endif 163 164 if (strcmp(device_get_name(child), "uart") == 0) { 165 if ((unit = device_get_unit(child)) == 0) { /* uart 0 */ 166 res->r_bushandle = (xlr_io_base + XLR_IO_UART_0_OFFSET); 167 } else if (unit == 1) { 168 res->r_bushandle = (xlr_io_base + XLR_IO_UART_1_OFFSET); 169 } else 170 printf("%s: Unknown uart unit\n", __FUNCTION__); 171 172 res->r_bustag = uart_bus_space_mem; 173 } else if (strcmp(device_get_name(child), "ehci") == 0) { 174 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1ef24000); 175 res->r_bustag = rmi_pci_bus_space; 176 } else if (strcmp(device_get_name(child), "cfi") == 0) { 177 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1c000000); 178 res->r_bustag = 0; 179 } else if (strcmp(device_get_name(child), "ata") == 0) { 180 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1d000000); 181 res->r_bustag = rmi_pci_bus_space; /* byte swapping (not really PCI) */ 182 } 183 /* res->r_start = *rid; */ 184 return (res); 185} 186 187static int 188iodi_activate_resource(device_t bus, device_t child, int type, int rid, 189 struct resource *r) 190{ 191 return (0); 192} 193 194/* prototypes */ 195static int iodi_probe(device_t); 196static int iodi_attach(device_t); 197static void iodi_identify(driver_t *, device_t); 198 199int 200iodi_probe(device_t dev) 201{ 202 return 0; 203} 204 205void 206iodi_identify(driver_t * driver, device_t parent) 207{ 208 209 BUS_ADD_CHILD(parent, 0, "iodi", 0); 210} 211 212int 213iodi_attach(device_t dev) 214{ 215 device_t tmpd; 216 217 /* 218 * Attach each devices 219 */ 220 device_add_child(dev, "uart", 0); 221 device_add_child(dev, "xlr_i2c", 0); 222 device_add_child(dev, "pcib", 0); 223 224 if (xlr_board_info.usb) 225 device_add_child(dev, "ehci", 0); 226 227 if (xlr_board_info.cfi) 228 device_add_child(dev, "cfi", 0); 229 230 if (xlr_board_info.ata) 231 device_add_child(dev, "ata", 0); 232 233 if (xlr_board_info.gmac_block[0].enabled) { 234 tmpd = device_add_child(dev, "rge", 0); 235 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 236 237 tmpd = device_add_child(dev, "rge", 1); 238 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 239 240 tmpd = device_add_child(dev, "rge", 2); 241 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 242 243 tmpd = device_add_child(dev, "rge", 3); 244 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 245 } 246 if (xlr_board_info.gmac_block[1].enabled) { 247 if (xlr_board_info.gmac_block[1].type == XLR_GMAC) { 248 tmpd = device_add_child(dev, "rge", 4); 249 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 250 251 tmpd = device_add_child(dev, "rge", 5); 252 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 253 254 if (xlr_board_info.gmac_block[1].enabled & 0x4) { 255 tmpd = device_add_child(dev, "rge", 6); 256 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 257 } 258 259 if (xlr_board_info.gmac_block[1].enabled & 0x8) { 260 tmpd = device_add_child(dev, "rge", 7); 261 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 262 } 263 } else if (xlr_board_info.gmac_block[1].type == XLR_XGMAC) { 264#if 0 /* XGMAC not yet */ 265 tmpd = device_add_child(dev, "rge", 4); 266 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 267 268 tmpd = device_add_child(dev, "rge", 5); 269 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 270#endif 271 } else 272 device_printf(dev, "Unknown type of gmac 1\n"); 273 } 274 bus_generic_probe(dev); 275 bus_generic_attach(dev); 276 return 0; 277} 278 279static device_method_t iodi_methods[] = { 280 DEVMETHOD(device_probe, iodi_probe), 281 DEVMETHOD(device_attach, iodi_attach), 282 DEVMETHOD(device_identify, iodi_identify), 283 DEVMETHOD(bus_alloc_resource, iodi_alloc_resource), 284 DEVMETHOD(bus_activate_resource, iodi_activate_resource), 285 DEVMETHOD(bus_setup_intr, iodi_setup_intr), 286 {0, 0}, 287}; 288 289static driver_t iodi_driver = { 290 "iodi", 291 iodi_methods, 292 1 /* no softc */ 293}; 294static devclass_t iodi_devclass; 295 296DRIVER_MODULE(iodi, nexus, iodi_driver, iodi_devclass, 0, 0); 297