1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009, Oleksandr Tymoshenko <[email protected]>
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 unmodified, this list of conditions, and the following
12 * disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32
33 #include "opt_ar71xx.h"
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37
38 #include <sys/bus.h>
39 #include <sys/interrupt.h>
40 #include <sys/malloc.h>
41 #include <sys/kernel.h>
42 #include <sys/module.h>
43 #include <sys/rman.h>
44 #include <sys/lock.h>
45 #include <sys/mutex.h>
46
47 #include <vm/vm.h>
48 #include <vm/pmap.h>
49 #include <vm/vm_extern.h>
50
51 #include <machine/bus.h>
52 #include <machine/cpu.h>
53 #include <machine/intr_machdep.h>
54
55 #include <dev/pci/pcivar.h>
56 #include <dev/pci/pcireg.h>
57
58 #include <dev/pci/pcib_private.h>
59 #include "pcib_if.h"
60
61 #include <mips/atheros/ar71xxreg.h>
62 #include <mips/atheros/ar71xx_pci_bus_space.h>
63
64 #include <mips/atheros/ar71xx_cpudef.h>
65
66 #include <sys/linker.h>
67 #include <sys/firmware.h>
68
69 #include <mips/atheros/ar71xx_fixup.h>
70
71 /*
72 * Take a copy of the EEPROM contents and squirrel it away in a firmware.
73 * The SPI flash will eventually cease to be memory-mapped, so we need
74 * to take a copy of this before the SPI driver initialises.
75 */
76 void
ar71xx_pci_slot_create_eeprom_firmware(device_t dev,u_int bus,u_int slot,u_int func,long int flash_addr,int size)77 ar71xx_pci_slot_create_eeprom_firmware(device_t dev, u_int bus, u_int slot,
78 u_int func, long int flash_addr, int size)
79 {
80 char buf[64];
81 uint16_t *cal_data = (uint16_t *) MIPS_PHYS_TO_KSEG1(flash_addr);
82 void *eeprom = NULL;
83 const struct firmware *fw = NULL;
84
85 device_printf(dev, "EEPROM firmware: 0x%lx @ %d bytes\n",
86 flash_addr, size);
87
88 eeprom = malloc(size, M_DEVBUF, M_WAITOK | M_ZERO);
89 if (! eeprom) {
90 device_printf(dev,
91 "%s: malloc failed for '%s', aborting EEPROM\n",
92 __func__, buf);
93 return;
94 }
95
96 memcpy(eeprom, cal_data, size);
97
98 /*
99 * Generate a flash EEPROM 'firmware' from the given memory
100 * region. Since the SPI controller will eventually
101 * go into port-IO mode instead of memory-mapped IO
102 * mode, a copy of the EEPROM contents is required.
103 */
104 snprintf(buf, sizeof(buf), "%s.%d.bus.%d.%d.%d.eeprom_firmware",
105 device_get_name(dev), device_get_unit(dev), bus, slot, func);
106 fw = firmware_register(buf, eeprom, size, 1, NULL);
107 if (fw == NULL) {
108 device_printf(dev, "%s: firmware_register (%s) failed\n",
109 __func__, buf);
110 free(eeprom, M_DEVBUF);
111 return;
112 }
113 device_printf(dev, "device EEPROM '%s' registered\n", buf);
114 }
115