ar71xx_fixup.c revision 302408
1/*- 2 * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org> 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: stable/11/sys/mips/atheros/ar71xx_fixup.c 295880 2016-02-22 09:02:20Z skra $"); 30 31#include "opt_ar71xx.h" 32 33#include <sys/param.h> 34#include <sys/systm.h> 35 36#include <sys/bus.h> 37#include <sys/interrupt.h> 38#include <sys/malloc.h> 39#include <sys/kernel.h> 40#include <sys/module.h> 41#include <sys/rman.h> 42#include <sys/lock.h> 43#include <sys/mutex.h> 44 45#include <vm/vm.h> 46#include <vm/pmap.h> 47#include <vm/vm_extern.h> 48 49#include <machine/bus.h> 50#include <machine/cpu.h> 51#include <machine/intr_machdep.h> 52 53#include <dev/pci/pcivar.h> 54#include <dev/pci/pcireg.h> 55 56#include <dev/pci/pcib_private.h> 57#include "pcib_if.h" 58 59#include <mips/atheros/ar71xxreg.h> 60#include <mips/atheros/ar71xx_pci_bus_space.h> 61 62#include <mips/atheros/ar71xx_cpudef.h> 63 64#include <sys/linker.h> 65#include <sys/firmware.h> 66 67#include <mips/atheros/ar71xx_fixup.h> 68 69/* 70 * Take a copy of the EEPROM contents and squirrel it away in a firmware. 71 * The SPI flash will eventually cease to be memory-mapped, so we need 72 * to take a copy of this before the SPI driver initialises. 73 */ 74void 75ar71xx_pci_slot_create_eeprom_firmware(device_t dev, u_int bus, u_int slot, 76 u_int func, long int flash_addr, int size) 77{ 78 char buf[64]; 79 uint16_t *cal_data = (uint16_t *) MIPS_PHYS_TO_KSEG1(flash_addr); 80 void *eeprom = NULL; 81 const struct firmware *fw = NULL; 82 83 device_printf(dev, "EEPROM firmware: 0x%lx @ %d bytes\n", 84 flash_addr, size); 85 86 eeprom = malloc(size, M_DEVBUF, M_WAITOK | M_ZERO); 87 if (! eeprom) { 88 device_printf(dev, 89 "%s: malloc failed for '%s', aborting EEPROM\n", 90 __func__, buf); 91 return; 92 } 93 94 memcpy(eeprom, cal_data, size); 95 96 /* 97 * Generate a flash EEPROM 'firmware' from the given memory 98 * region. Since the SPI controller will eventually 99 * go into port-IO mode instead of memory-mapped IO 100 * mode, a copy of the EEPROM contents is required. 101 */ 102 snprintf(buf, sizeof(buf), "%s.%d.bus.%d.%d.%d.eeprom_firmware", 103 device_get_name(dev), device_get_unit(dev), bus, slot, func); 104 fw = firmware_register(buf, eeprom, size, 1, NULL); 105 if (fw == NULL) { 106 device_printf(dev, "%s: firmware_register (%s) failed\n", 107 __func__, buf); 108 free(eeprom, M_DEVBUF); 109 return; 110 } 111 device_printf(dev, "device EEPROM '%s' registered\n", buf); 112} 113 114#if 0 115static void 116ar71xx_pci_slot_fixup(device_t dev, u_int bus, u_int slot, u_int func) 117{ 118 long int flash_addr; 119 char buf[64]; 120 int size; 121 122 /* 123 * Check whether the given slot has a hint to poke. 124 */ 125 if (bootverbose) 126 device_printf(dev, "%s: checking dev %s, %d/%d/%d\n", 127 __func__, device_get_nameunit(dev), bus, slot, func); 128 129 snprintf(buf, sizeof(buf), "bus.%d.%d.%d.ath_fixup_addr", 130 bus, slot, func); 131 132 if (resource_long_value(device_get_name(dev), device_get_unit(dev), 133 buf, &flash_addr) == 0) { 134 snprintf(buf, sizeof(buf), "bus.%d.%d.%d.ath_fixup_size", 135 bus, slot, func); 136 if (resource_int_value(device_get_name(dev), 137 device_get_unit(dev), buf, &size) != 0) { 138 device_printf(dev, 139 "%s: missing hint '%s', aborting EEPROM\n", 140 __func__, buf); 141 return; 142 } 143 144 145 device_printf(dev, "found EEPROM at 0x%lx on %d.%d.%d\n", 146 flash_addr, bus, slot, func); 147 ar71xx_pci_fixup(dev, bus, slot, func, flash_addr, size); 148 ar71xx_pci_slot_create_eeprom_firmware(dev, bus, slot, func, 149 flash_addr, size); 150 } 151} 152#endif /* 0 */ 153