iodi.c revision 302408
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: stable/11/sys/mips/rmi/iodi.c 297000 2016-03-18 01:28:41Z jhibbits $"); 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/intr_machdep.h> 52#include <machine/clock.h> /* for DELAY */ 53#include <machine/resource.h> 54 55#include <mips/rmi/board.h> 56#include <mips/rmi/pic.h> 57#include <mips/rmi/interrupt.h> 58#include <mips/rmi/msgring.h> 59#include <mips/rmi/iomap.h> 60#include <mips/rmi/rmi_mips_exts.h> 61 62#include <mips/rmi/dev/xlr/atx_cpld.h> 63#include <mips/rmi/dev/xlr/xgmac_mdio.h> 64 65extern bus_space_tag_t uart_bus_space_mem; 66 67static struct resource * 68iodi_alloc_resource(device_t, device_t, int, int *, 69 rman_res_t, rman_res_t, rman_res_t, u_int); 70 71static int 72iodi_activate_resource(device_t, device_t, int, int, 73 struct resource *); 74static int 75iodi_setup_intr(device_t, device_t, struct resource *, int, 76 driver_filter_t *, driver_intr_t *, void *, void **); 77 78struct iodi_softc *iodi_softc; /* There can be only one. */ 79 80/* 81 * We will manage the Flash/PCMCIA devices in IODI for now. 82 * The NOR flash, Compact flash etc. which can be connected on 83 * various chip selects on the peripheral IO, should have a 84 * separate bus later. 85 */ 86static void 87bridge_pcmcia_ack(int irq) 88{ 89 xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_FLASH_OFFSET); 90 91 xlr_write_reg(mmio, 0x60, 0xffffffff); 92} 93 94static int 95iodi_setup_intr(device_t dev, device_t child, 96 struct resource *ires, int flags, driver_filter_t *filt, 97 driver_intr_t *intr, void *arg, void **cookiep) 98{ 99 const char *name = device_get_name(child); 100 101 if (strcmp(name, "uart") == 0) { 102 /* FIXME uart 1? */ 103 cpu_establish_hardintr("uart", filt, intr, arg, 104 PIC_UART_0_IRQ, flags, cookiep); 105 pic_setup_intr(PIC_IRT_UART_0_INDEX, PIC_UART_0_IRQ, 0x1, 1); 106 } else if (strcmp(name, "nlge") == 0) { 107 int irq; 108 109 /* This is a hack to pass in the irq */ 110 irq = (intptr_t)ires->__r_i; 111 cpu_establish_hardintr("nlge", filt, intr, arg, irq, flags, 112 cookiep); 113 pic_setup_intr(irq - PIC_IRQ_BASE, irq, 0x1, 1); 114 } else if (strcmp(name, "ehci") == 0) { 115 cpu_establish_hardintr("ehci", filt, intr, arg, PIC_USB_IRQ, flags, 116 cookiep); 117 pic_setup_intr(PIC_USB_IRQ - PIC_IRQ_BASE, PIC_USB_IRQ, 0x1, 1); 118 } else if (strcmp(name, "ata") == 0) { 119 xlr_establish_intr("ata", filt, intr, arg, PIC_PCMCIA_IRQ, flags, 120 cookiep, bridge_pcmcia_ack); 121 pic_setup_intr(PIC_PCMCIA_IRQ - PIC_IRQ_BASE, PIC_PCMCIA_IRQ, 0x1, 1); 122 } 123 return (0); 124} 125 126static struct resource * 127iodi_alloc_resource(device_t bus, device_t child, int type, int *rid, 128 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 129{ 130 struct resource *res = malloc(sizeof(*res), M_DEVBUF, M_WAITOK); 131 const char *name = device_get_name(child); 132 int unit; 133 134#ifdef DEBUG 135 switch (type) { 136 case SYS_RES_IRQ: 137 device_printf(bus, "IRQ resource - for %s %jx-%jx\n", 138 device_get_nameunit(child), start, end); 139 break; 140 141 case SYS_RES_IOPORT: 142 device_printf(bus, "IOPORT resource - for %s %jx-%jx\n", 143 device_get_nameunit(child), start, end); 144 break; 145 146 case SYS_RES_MEMORY: 147 device_printf(bus, "MEMORY resource - for %s %jx-%jx\n", 148 device_get_nameunit(child), start, end); 149 break; 150 } 151#endif 152 153 if (strcmp(name, "uart") == 0) { 154 if ((unit = device_get_unit(child)) == 0) { /* uart 0 */ 155 res->r_bushandle = (xlr_io_base + XLR_IO_UART_0_OFFSET); 156 } else if (unit == 1) { 157 res->r_bushandle = (xlr_io_base + XLR_IO_UART_1_OFFSET); 158 } else 159 printf("%s: Unknown uart unit\n", __FUNCTION__); 160 161 res->r_bustag = uart_bus_space_mem; 162 } else if (strcmp(name, "ehci") == 0) { 163 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1ef24000); 164 res->r_bustag = rmi_pci_bus_space; 165 } else if (strcmp(name, "cfi") == 0) { 166 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1c000000); 167 res->r_bustag = 0; 168 } else if (strcmp(name, "ata") == 0) { 169 res->r_bushandle = MIPS_PHYS_TO_KSEG1(0x1d000000); 170 res->r_bustag = rmi_pci_bus_space; /* byte swapping (not really PCI) */ 171 } 172 /* res->r_start = *rid; */ 173 return (res); 174} 175 176static int 177iodi_activate_resource(device_t bus, device_t child, int type, int rid, 178 struct resource *r) 179{ 180 return (0); 181} 182 183/* prototypes */ 184static int iodi_probe(device_t); 185static int iodi_attach(device_t); 186static int iodi_detach(device_t); 187static void iodi_identify(driver_t *, device_t); 188 189int 190iodi_probe(device_t dev) 191{ 192 return (BUS_PROBE_NOWILDCARD); 193} 194 195void 196iodi_identify(driver_t * driver, device_t parent) 197{ 198 199 BUS_ADD_CHILD(parent, 0, "iodi", 0); 200} 201 202int 203iodi_attach(device_t dev) 204{ 205 device_t tmpd; 206 int i; 207 208 /* 209 * Attach each devices 210 */ 211 device_add_child(dev, "uart", 0); 212 device_add_child(dev, "xlr_i2c", 0); 213 device_add_child(dev, "xlr_i2c", 1); 214 device_add_child(dev, "pcib", 0); 215 device_add_child(dev, "rmisec", -1); 216 217 if (xlr_board_info.usb) 218 device_add_child(dev, "ehci", 0); 219 220 if (xlr_board_info.cfi) 221 device_add_child(dev, "cfi", 0); 222 223 if (xlr_board_info.ata) 224 device_add_child(dev, "ata", 0); 225 226 for (i = 0; i < 3; i++) { 227 if (xlr_board_info.gmac_block[i].enabled == 0) 228 continue; 229 tmpd = device_add_child(dev, "nlna", i); 230 device_set_ivars(tmpd, &xlr_board_info.gmac_block[i]); 231 } 232 233 bus_generic_probe(dev); 234 bus_generic_attach(dev); 235 return 0; 236} 237 238int 239iodi_detach(device_t dev) 240{ 241 device_t nlna_dev; 242 int error, i, ret; 243 244 error = 0; 245 ret = 0; 246 for (i = 0; i < 3; i++) { 247 nlna_dev = device_find_child(dev, "nlna", i); 248 if (nlna_dev != NULL) 249 error = bus_generic_detach(nlna_dev); 250 if (error) 251 ret = error; 252 } 253 return ret; 254} 255 256static device_method_t iodi_methods[] = { 257 DEVMETHOD(device_probe, iodi_probe), 258 DEVMETHOD(device_attach, iodi_attach), 259 DEVMETHOD(device_detach, iodi_detach), 260 DEVMETHOD(device_identify, iodi_identify), 261 DEVMETHOD(bus_alloc_resource, iodi_alloc_resource), 262 DEVMETHOD(bus_activate_resource, iodi_activate_resource), 263 DEVMETHOD(bus_add_child, bus_generic_add_child), 264 DEVMETHOD(bus_setup_intr, iodi_setup_intr), 265 {0, 0}, 266}; 267 268static driver_t iodi_driver = { 269 "iodi", 270 iodi_methods, 271 1 /* no softc */ 272}; 273static devclass_t iodi_devclass; 274 275DRIVER_MODULE(iodi, nexus, iodi_driver, iodi_devclass, 0, 0); 276