iodi.c revision 204137
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 204137 2010-02-20 17:24:33Z rrs $"); 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 void iodi_activateirqs(void); 78 79extern bus_space_tag_t uart_bus_space_mem; 80 81static struct resource * 82iodi_alloc_resource(device_t, device_t, int, int *, 83 u_long, u_long, u_long, u_int); 84 85static int 86iodi_activate_resource(device_t, device_t, int, int, 87 struct resource *); 88static int 89iodi_setup_intr(device_t, device_t, struct resource *, int, 90 driver_filter_t *, driver_intr_t *, void *, void **); 91 92struct iodi_softc *iodi_softc; /* There can be only one. */ 93 94/* 95static void pic_usb_ack(void *arg) 96{ 97 xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_PIC_OFFSET); 98 int irq = PIC_USB_IRQ ; 99 100 mtx_lock_spin(&xlr_pic_lock); 101 xlr_write_reg(mmio, PIC_INT_ACK, (1 << (irq - PIC_IRQ_BASE))); 102 mtx_unlock_spin(&xlr_pic_lock); 103} 104*/ 105 106 107static int 108iodi_setup_intr(device_t dev, device_t child, 109 struct resource *ires, int flags, driver_filter_t * filt, driver_intr_t * intr, void *arg, 110 void **cookiep) 111{ 112 int level; 113 xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_PIC_OFFSET); 114 xlr_reg_t reg; 115 116 /* FIXME is this the right place to fiddle with PIC? */ 117 if (strcmp(device_get_name(child), "uart") == 0) { 118 /* FIXME uart 1? */ 119 if (rmi_spin_mutex_safe) 120 mtx_lock_spin(&xlr_pic_lock); 121 level = PIC_IRQ_IS_EDGE_TRIGGERED(PIC_IRT_UART_0_INDEX); 122 xlr_write_reg(mmio, PIC_IRT_0_UART_0, 0x01); 123 xlr_write_reg(mmio, PIC_IRT_1_UART_0, ((1 << 31) | (level << 30) | (1 << 6) | (PIC_UART_0_IRQ))); 124 if (rmi_spin_mutex_safe) 125 mtx_unlock_spin(&xlr_pic_lock); 126 cpu_establish_hardintr("uart", filt, 127 (driver_intr_t *) intr, (void *)arg, PIC_UART_0_IRQ, flags, cookiep); 128 129 } else if (strcmp(device_get_name(child), "rge") == 0) { 130 int irq; 131 132 /* This is a hack to pass in the irq */ 133 irq = (int)ires->__r_i; 134 if (rmi_spin_mutex_safe) 135 mtx_lock_spin(&xlr_pic_lock); 136 reg = xlr_read_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE); 137 xlr_write_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE, reg | (1 << 6) | (1 << 30) | (1 << 31)); 138 if (rmi_spin_mutex_safe) 139 mtx_unlock_spin(&xlr_pic_lock); 140 cpu_establish_hardintr("rge", filt, (driver_intr_t *) intr, (void *)arg, irq, flags, cookiep); 141 142 } else if (strcmp(device_get_name(child), "ehci") == 0) { 143 if (rmi_spin_mutex_safe) 144 mtx_lock_spin(&xlr_pic_lock); 145 reg = xlr_read_reg(mmio, PIC_IRT_1_BASE + PIC_USB_IRQ - PIC_IRQ_BASE); 146 xlr_write_reg(mmio, PIC_IRT_1_BASE + PIC_USB_IRQ - PIC_IRQ_BASE, reg | (1 << 6) | (1 << 30) | (1 << 31)); 147 if (rmi_spin_mutex_safe) 148 mtx_unlock_spin(&xlr_pic_lock); 149 cpu_establish_hardintr("ehci", filt, (driver_intr_t *) intr, (void *)arg, PIC_USB_IRQ, flags, cookiep); 150 } 151 /* 152 * This causes a panic and looks recursive to me (RRS). 153 * BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, filt, 154 * intr, arg, cookiep); 155 */ 156 157 return (0); 158} 159 160/* Strange hook found in mips/include/bus.h */ 161#ifndef MIPS_BUS_SPACE_PCI 162#define MIPS_BUS_SPACE_PCI 10 163#endif 164 165static struct resource * 166iodi_alloc_resource(device_t bus, device_t child, int type, int *rid, 167 u_long start, u_long end, u_long count, u_int flags) 168{ 169 struct resource *res = malloc(sizeof(*res), M_DEVBUF, M_WAITOK); 170 int unit; 171 172#ifdef DEBUG 173 switch (type) { 174 case SYS_RES_IRQ: 175 device_printf(bus, "IRQ resource - for %s %lx-%lx\n", 176 device_get_nameunit(child), start, end); 177 break; 178 179 case SYS_RES_IOPORT: 180 device_printf(bus, "IOPORT resource - for %s %lx-%lx\n", 181 device_get_nameunit(child), start, end); 182 break; 183 184 case SYS_RES_MEMORY: 185 device_printf(bus, "MEMORY resource - for %s %lx-%lx\n", 186 device_get_nameunit(child), start, end); 187 break; 188 } 189#endif 190 191 if (strcmp(device_get_name(child), "uart") == 0) { 192 if ((unit = device_get_unit(child)) == 0) { /* uart 0 */ 193 res->r_bushandle = (xlr_io_base + XLR_IO_UART_0_OFFSET); 194 } else if (unit == 1) { 195 res->r_bushandle = (xlr_io_base + XLR_IO_UART_1_OFFSET); 196 } else 197 printf("%s: Unknown uart unit\n", __FUNCTION__); 198 199 res->r_bustag = uart_bus_space_mem; 200 } else if (strcmp(device_get_name(child), "ehci") == 0) { 201 res->r_bushandle = 0xbef24000; 202 res->r_bustag = (bus_space_tag_t) MIPS_BUS_SPACE_PCI; 203 } else if (strcmp(device_get_name(child), "cfi") == 0) { 204 res->r_bushandle = 0xbc000000; 205 res->r_bustag = 0; 206 } 207 /* res->r_start = *rid; */ 208 return (res); 209} 210 211static int 212iodi_activate_resource(device_t bus, device_t child, int type, int rid, 213 struct resource *r) 214{ 215 return (0); 216} 217 218/* prototypes */ 219static int iodi_probe(device_t); 220static int iodi_attach(device_t); 221static void iodi_identify(driver_t *, device_t); 222 223int 224iodi_probe(device_t dev) 225{ 226 return 0; 227} 228 229void 230iodi_identify(driver_t * driver, device_t parent) 231{ 232 233 BUS_ADD_CHILD(parent, 0, "iodi", 0); 234} 235 236int 237iodi_attach(device_t dev) 238{ 239 device_t tmpd; 240 241 /* 242 * Attach each devices 243 */ 244 device_add_child(dev, "uart", 0); 245 device_add_child(dev, "xlr_i2c", 0); 246 247 if (xlr_board_info.usb) 248 device_add_child(dev, "ehci", 0); 249 250 if (xlr_board_info.cfi) 251 device_add_child(dev, "cfi", 0); 252 253 if (xlr_board_info.gmac_block[0].enabled) { 254 tmpd = device_add_child(dev, "rge", 0); 255 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 256 257 tmpd = device_add_child(dev, "rge", 1); 258 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 259 260 tmpd = device_add_child(dev, "rge", 2); 261 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 262 263 tmpd = device_add_child(dev, "rge", 3); 264 device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]); 265 } 266 if (xlr_board_info.gmac_block[1].enabled) { 267 if (xlr_board_info.gmac_block[1].type == XLR_GMAC) { 268 tmpd = device_add_child(dev, "rge", 4); 269 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 270 271 tmpd = device_add_child(dev, "rge", 5); 272 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 273 274 if (xlr_board_info.gmac_block[1].enabled & 0x4) { 275 tmpd = device_add_child(dev, "rge", 6); 276 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 277 } 278 279 if (xlr_board_info.gmac_block[1].enabled & 0x8) { 280 tmpd = device_add_child(dev, "rge", 7); 281 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 282 } 283 } else if (xlr_board_info.gmac_block[1].type == XLR_XGMAC) { 284#if 0 /* XGMAC not yet */ 285 tmpd = device_add_child(dev, "rge", 4); 286 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 287 288 tmpd = device_add_child(dev, "rge", 5); 289 device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]); 290#endif 291 } else 292 device_printf(dev, "Unknown type of gmac 1\n"); 293 } 294 bus_generic_probe(dev); 295 bus_generic_attach(dev); 296 return 0; 297} 298 299static device_method_t iodi_methods[] = { 300 DEVMETHOD(device_probe, iodi_probe), 301 DEVMETHOD(device_attach, iodi_attach), 302 DEVMETHOD(device_identify, iodi_identify), 303 DEVMETHOD(bus_alloc_resource, iodi_alloc_resource), 304 DEVMETHOD(bus_activate_resource, iodi_activate_resource), 305 DEVMETHOD(bus_setup_intr, iodi_setup_intr), 306 {0, 0}, 307}; 308 309static driver_t iodi_driver = { 310 "iodi", 311 iodi_methods, 312 1 /* no softc */ 313}; 314static devclass_t iodi_devclass; 315 316DRIVER_MODULE(iodi, nexus, iodi_driver, iodi_devclass, 0, 0); 317