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("$FreeBSD$");
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