iodi.c revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2003-2009 RMI Corporation 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of RMI Corporation, nor the names of its contributors, 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * RMI_BSD 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: stable/11/sys/mips/rmi/iodi.c 330897 2018-03-14 03:19:51Z eadler $"); 36 37#define __RMAN_RESOURCE_VISIBLE 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/bus.h> 41#include <sys/kernel.h> 42#include <sys/lock.h> 43#include <sys/mutex.h> 44#include <sys/reboot.h> 45#include <sys/rman.h> 46#include <sys/types.h> 47#include <sys/malloc.h> 48#include <sys/interrupt.h> 49#include <sys/module.h> 50 51#include <machine/cpu.h> 52#include <machine/bus.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 rman_res_t, rman_res_t, rman_res_t, 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, "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("nlge", 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 rman_res_t start, rman_res_t end, rman_res_t 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 %jx-%jx\n", 140 device_get_nameunit(child), start, end); 141 break; 142 143 case SYS_RES_IOPORT: 144 device_printf(bus, "IOPORT resource - for %s %jx-%jx\n", 145 device_get_nameunit(child), start, end); 146 break; 147 148 case SYS_RES_MEMORY: 149 device_printf(bus, "MEMORY resource - for %s %jx-%jx\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 (BUS_PROBE_NOWILDCARD); 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, "xlr_i2c", 1); 216 device_add_child(dev, "pcib", 0); 217 device_add_child(dev, "rmisec", -1); 218 219 if (xlr_board_info.usb) 220 device_add_child(dev, "ehci", 0); 221 222 if (xlr_board_info.cfi) 223 device_add_child(dev, "cfi", 0); 224 225 if (xlr_board_info.ata) 226 device_add_child(dev, "ata", 0); 227 228 for (i = 0; i < 3; i++) { 229 if (xlr_board_info.gmac_block[i].enabled == 0) 230 continue; 231 tmpd = device_add_child(dev, "nlna", i); 232 device_set_ivars(tmpd, &xlr_board_info.gmac_block[i]); 233 } 234 235 bus_generic_probe(dev); 236 bus_generic_attach(dev); 237 return 0; 238} 239 240int 241iodi_detach(device_t dev) 242{ 243 device_t nlna_dev; 244 int error, i, ret; 245 246 error = 0; 247 ret = 0; 248 for (i = 0; i < 3; i++) { 249 nlna_dev = device_find_child(dev, "nlna", i); 250 if (nlna_dev != NULL) 251 error = bus_generic_detach(nlna_dev); 252 if (error) 253 ret = error; 254 } 255 return ret; 256} 257 258static device_method_t iodi_methods[] = { 259 DEVMETHOD(device_probe, iodi_probe), 260 DEVMETHOD(device_attach, iodi_attach), 261 DEVMETHOD(device_detach, iodi_detach), 262 DEVMETHOD(device_identify, iodi_identify), 263 DEVMETHOD(bus_alloc_resource, iodi_alloc_resource), 264 DEVMETHOD(bus_activate_resource, iodi_activate_resource), 265 DEVMETHOD(bus_add_child, bus_generic_add_child), 266 DEVMETHOD(bus_setup_intr, iodi_setup_intr), 267 {0, 0}, 268}; 269 270static driver_t iodi_driver = { 271 "iodi", 272 iodi_methods, 273 1 /* no softc */ 274}; 275static devclass_t iodi_devclass; 276 277DRIVER_MODULE(iodi, nexus, iodi_driver, iodi_devclass, 0, 0); 278