ar71xx_fixup.c revision 234485
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: head/sys/mips/atheros/ar71xx_fixup.c 234485 2012-04-20 08:26:05Z adrian $"); 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#include <machine/pmap.h> 53 54#include <dev/pci/pcivar.h> 55#include <dev/pci/pcireg.h> 56 57#include <dev/pci/pcib_private.h> 58#include "pcib_if.h" 59 60#include <mips/atheros/ar71xxreg.h> 61#include <mips/atheros/ar71xx_pci_bus_space.h> 62 63#include <mips/atheros/ar71xx_cpudef.h> 64 65#include <sys/linker.h> 66#include <sys/firmware.h> 67 68#include <mips/atheros/ar71xx_fixup.h> 69 70/* 71 * Take a copy of the EEPROM contents and squirrel it away in a firmware. 72 * The SPI flash will eventually cease to be memory-mapped, so we need 73 * to take a copy of this before the SPI driver initialises. 74 */ 75void 76ar71xx_pci_slot_create_eeprom_firmware(device_t dev, u_int bus, u_int slot, 77 u_int func, long int flash_addr, int size) 78{ 79 char buf[64]; 80 uint16_t *cal_data = (uint16_t *) MIPS_PHYS_TO_KSEG1(flash_addr); 81 void *eeprom = NULL; 82 const struct firmware *fw = NULL; 83 84 device_printf(dev, "EEPROM firmware: 0x%lx @ %d bytes\n", 85 flash_addr, size); 86 87 eeprom = malloc(size, M_DEVBUF, M_WAITOK | M_ZERO); 88 if (! eeprom) { 89 device_printf(dev, 90 "%s: malloc failed for '%s', aborting EEPROM\n", 91 __func__, buf); 92 return; 93 } 94 95 memcpy(eeprom, cal_data, size); 96 97 /* 98 * Generate a flash EEPROM 'firmware' from the given memory 99 * region. Since the SPI controller will eventually 100 * go into port-IO mode instead of memory-mapped IO 101 * mode, a copy of the EEPROM contents is required. 102 */ 103 snprintf(buf, sizeof(buf), "%s.%d.bus.%d.%d.%d.eeprom_firmware", 104 device_get_name(dev), device_get_unit(dev), bus, slot, func); 105 fw = firmware_register(buf, eeprom, size, 1, NULL); 106 if (fw == NULL) { 107 device_printf(dev, "%s: firmware_register (%s) failed\n", 108 __func__, buf); 109 free(eeprom, M_DEVBUF); 110 return; 111 } 112 device_printf(dev, "device EEPROM '%s' registered\n", buf); 113} 114 115#if 0 116static void 117ar71xx_pci_slot_fixup(device_t dev, u_int bus, u_int slot, u_int func) 118{ 119 long int flash_addr; 120 char buf[64]; 121 int size; 122 123 /* 124 * Check whether the given slot has a hint to poke. 125 */ 126 if (bootverbose) 127 device_printf(dev, "%s: checking dev %s, %d/%d/%d\n", 128 __func__, device_get_nameunit(dev), bus, slot, func); 129 130 snprintf(buf, sizeof(buf), "bus.%d.%d.%d.ath_fixup_addr", 131 bus, slot, func); 132 133 if (resource_long_value(device_get_name(dev), device_get_unit(dev), 134 buf, &flash_addr) == 0) { 135 snprintf(buf, sizeof(buf), "bus.%d.%d.%d.ath_fixup_size", 136 bus, slot, func); 137 if (resource_int_value(device_get_name(dev), 138 device_get_unit(dev), buf, &size) != 0) { 139 device_printf(dev, 140 "%s: missing hint '%s', aborting EEPROM\n", 141 __func__, buf); 142 return; 143 } 144 145 146 device_printf(dev, "found EEPROM at 0x%lx on %d.%d.%d\n", 147 flash_addr, bus, slot, func); 148 ar71xx_pci_fixup(dev, bus, slot, func, flash_addr, size); 149 ar71xx_pci_slot_create_eeprom_firmware(dev, bus, slot, func, 150 flash_addr, size); 151 } 152} 153#endif /* 0 */ 154