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: releng/10.3/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