2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2006 Michael Buesch <m@bues.ch>
5 * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
6 * Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <linux/types.h>
30 #include <linux/ssb/ssb.h>
31 #include <linux/ssb/ssb_embedded.h>
32 #include <asm/bootinfo.h>
33 #include <asm/reboot.h>
36 #include <asm/mach-bcm47xx/nvram.h>
38 struct ssb_bus ssb_bcm47xx
;
39 EXPORT_SYMBOL(ssb_bcm47xx
);
41 static void bcm47xx_machine_restart(char *command
)
43 printk(KERN_ALERT
"Please stand by while rebooting the system...\n");
45 /* Set the watchdog timer to reset immediately */
46 ssb_watchdog_timer_set(&ssb_bcm47xx
, 1);
51 static void bcm47xx_machine_halt(void)
53 /* Disable interrupts and watchdog and spin forever */
55 ssb_watchdog_timer_set(&ssb_bcm47xx
, 0);
60 #define READ_FROM_NVRAM(_outvar, name, buf) \
61 if (nvram_getprefix(prefix, name, buf, sizeof(buf)) >= 0)\
62 sprom->_outvar = simple_strtoul(buf, NULL, 0);
64 #define READ_FROM_NVRAM2(_outvar, name1, name2, buf) \
65 if (nvram_getprefix(prefix, name1, buf, sizeof(buf)) >= 0 || \
66 nvram_getprefix(prefix, name2, buf, sizeof(buf)) >= 0)\
67 sprom->_outvar = simple_strtoul(buf, NULL, 0);
69 static inline int nvram_getprefix(const char *prefix
, char *name
,
75 snprintf(key
, sizeof(key
), "%s%s", prefix
, name
);
76 return nvram_getenv(key
, buf
, len
);
79 return nvram_getenv(name
, buf
, len
);
82 static u32
nvram_getu32(const char *name
, char *buf
, int len
)
88 snprintf(key
, sizeof(key
), "%s0", name
);
89 rv
= nvram_getenv(key
, buf
, len
);
90 /* return 0 here so this looks like unset */
93 var0
= simple_strtoul(buf
, NULL
, 0);
95 snprintf(key
, sizeof(key
), "%s1", name
);
96 rv
= nvram_getenv(key
, buf
, len
);
99 var1
= simple_strtoul(buf
, NULL
, 0);
100 return var1
<< 16 | var0
;
103 static void bcm47xx_fill_sprom(struct ssb_sprom
*sprom
, const char *prefix
)
108 memset(sprom
, 0, sizeof(struct ssb_sprom
));
110 sprom
->revision
= 1; /* Fallback: Old hardware does not define this. */
111 READ_FROM_NVRAM(revision
, "sromrev", buf
);
112 if (nvram_getprefix(prefix
, "il0macaddr", buf
, sizeof(buf
)) >= 0 ||
113 nvram_getprefix(prefix
, "macaddr", buf
, sizeof(buf
)) >= 0)
114 nvram_parse_macaddr(buf
, sprom
->il0mac
);
115 if (nvram_getprefix(prefix
, "et0macaddr", buf
, sizeof(buf
)) >= 0)
116 nvram_parse_macaddr(buf
, sprom
->et0mac
);
117 if (nvram_getprefix(prefix
, "et1macaddr", buf
, sizeof(buf
)) >= 0)
118 nvram_parse_macaddr(buf
, sprom
->et1mac
);
119 READ_FROM_NVRAM(et0phyaddr
, "et0phyaddr", buf
);
120 READ_FROM_NVRAM(et1phyaddr
, "et1phyaddr", buf
);
121 READ_FROM_NVRAM(et0mdcport
, "et0mdcport", buf
);
122 READ_FROM_NVRAM(et1mdcport
, "et1mdcport", buf
);
123 READ_FROM_NVRAM(board_rev
, "boardrev", buf
);
124 READ_FROM_NVRAM(country_code
, "ccode", buf
);
125 READ_FROM_NVRAM(ant_available_a
, "aa5g", buf
);
126 READ_FROM_NVRAM(ant_available_bg
, "aa2g", buf
);
127 READ_FROM_NVRAM(pa0b0
, "pa0b0", buf
);
128 READ_FROM_NVRAM(pa0b1
, "pa0b1", buf
);
129 READ_FROM_NVRAM(pa0b2
, "pa0b2", buf
);
130 READ_FROM_NVRAM(pa1b0
, "pa1b0", buf
);
131 READ_FROM_NVRAM(pa1b1
, "pa1b1", buf
);
132 READ_FROM_NVRAM(pa1b2
, "pa1b2", buf
);
133 READ_FROM_NVRAM(pa1lob0
, "pa1lob0", buf
);
134 READ_FROM_NVRAM(pa1lob2
, "pa1lob1", buf
);
135 READ_FROM_NVRAM(pa1lob1
, "pa1lob2", buf
);
136 READ_FROM_NVRAM(pa1hib0
, "pa1hib0", buf
);
137 READ_FROM_NVRAM(pa1hib2
, "pa1hib1", buf
);
138 READ_FROM_NVRAM(pa1hib1
, "pa1hib2", buf
);
139 READ_FROM_NVRAM2(gpio0
, "ledbh0", "wl0gpio0", buf
);
140 READ_FROM_NVRAM2(gpio1
, "ledbh1", "wl0gpio1", buf
);
141 READ_FROM_NVRAM2(gpio2
, "ledbh2", "wl0gpio2", buf
);
142 READ_FROM_NVRAM2(gpio3
, "ledbh3", "wl0gpio3", buf
);
143 READ_FROM_NVRAM2(maxpwr_bg
, "maxp2ga0", "pa0maxpwr", buf
);
144 READ_FROM_NVRAM2(maxpwr_al
, "maxp5gla0", "pa1lomaxpwr", buf
);
145 READ_FROM_NVRAM2(maxpwr_a
, "maxp5ga0", "pa1maxpwr", buf
);
146 READ_FROM_NVRAM2(maxpwr_ah
, "maxp5gha0", "pa1himaxpwr", buf
);
147 READ_FROM_NVRAM2(itssi_bg
, "itt5ga0", "pa0itssit", buf
);
148 READ_FROM_NVRAM2(itssi_a
, "itt2ga0", "pa1itssit", buf
);
149 READ_FROM_NVRAM(tri2g
, "tri2g", buf
);
150 READ_FROM_NVRAM(tri5gl
, "tri5gl", buf
);
151 READ_FROM_NVRAM(tri5g
, "tri5g", buf
);
152 READ_FROM_NVRAM(tri5gh
, "tri5gh", buf
);
153 READ_FROM_NVRAM(txpid2g
[0], "txpid2ga0", buf
);
154 READ_FROM_NVRAM(txpid2g
[1], "txpid2ga1", buf
);
155 READ_FROM_NVRAM(txpid2g
[2], "txpid2ga2", buf
);
156 READ_FROM_NVRAM(txpid2g
[3], "txpid2ga3", buf
);
157 READ_FROM_NVRAM(txpid5g
[0], "txpid5ga0", buf
);
158 READ_FROM_NVRAM(txpid5g
[1], "txpid5ga1", buf
);
159 READ_FROM_NVRAM(txpid5g
[2], "txpid5ga2", buf
);
160 READ_FROM_NVRAM(txpid5g
[3], "txpid5ga3", buf
);
161 READ_FROM_NVRAM(txpid5gl
[0], "txpid5gla0", buf
);
162 READ_FROM_NVRAM(txpid5gl
[1], "txpid5gla1", buf
);
163 READ_FROM_NVRAM(txpid5gl
[2], "txpid5gla2", buf
);
164 READ_FROM_NVRAM(txpid5gl
[3], "txpid5gla3", buf
);
165 READ_FROM_NVRAM(txpid5gh
[0], "txpid5gha0", buf
);
166 READ_FROM_NVRAM(txpid5gh
[1], "txpid5gha1", buf
);
167 READ_FROM_NVRAM(txpid5gh
[2], "txpid5gha2", buf
);
168 READ_FROM_NVRAM(txpid5gh
[3], "txpid5gha3", buf
);
169 READ_FROM_NVRAM(rxpo2g
, "rxpo2g", buf
);
170 READ_FROM_NVRAM(rxpo5g
, "rxpo5g", buf
);
171 READ_FROM_NVRAM(rssisav2g
, "rssisav2g", buf
);
172 READ_FROM_NVRAM(rssismc2g
, "rssismc2g", buf
);
173 READ_FROM_NVRAM(rssismf2g
, "rssismf2g", buf
);
174 READ_FROM_NVRAM(bxa2g
, "bxa2g", buf
);
175 READ_FROM_NVRAM(rssisav5g
, "rssisav5g", buf
);
176 READ_FROM_NVRAM(rssismc5g
, "rssismc5g", buf
);
177 READ_FROM_NVRAM(rssismf5g
, "rssismf5g", buf
);
178 READ_FROM_NVRAM(bxa5g
, "bxa5g", buf
);
179 READ_FROM_NVRAM(cck2gpo
, "cck2gpo", buf
);
181 sprom
->ofdm2gpo
= nvram_getu32("ofdm2gpo", buf
, sizeof(buf
));
182 sprom
->ofdm5glpo
= nvram_getu32("ofdm5glpo", buf
, sizeof(buf
));
183 sprom
->ofdm5gpo
= nvram_getu32("ofdm5gpo", buf
, sizeof(buf
));
184 sprom
->ofdm5ghpo
= nvram_getu32("ofdm5ghpo", buf
, sizeof(buf
));
186 READ_FROM_NVRAM(antenna_gain
.ghz24
.a0
, "ag0", buf
);
187 READ_FROM_NVRAM(antenna_gain
.ghz24
.a1
, "ag1", buf
);
188 READ_FROM_NVRAM(antenna_gain
.ghz24
.a2
, "ag2", buf
);
189 READ_FROM_NVRAM(antenna_gain
.ghz24
.a3
, "ag3", buf
);
190 memcpy(&sprom
->antenna_gain
.ghz5
, &sprom
->antenna_gain
.ghz24
,
191 sizeof(sprom
->antenna_gain
.ghz5
));
193 if (nvram_getprefix(prefix
, "boardflags", buf
, sizeof(buf
)) >= 0) {
194 boardflags
= simple_strtoul(buf
, NULL
, 0);
196 sprom
->boardflags_lo
= (boardflags
& 0x0000FFFFU
);
197 sprom
->boardflags_hi
= (boardflags
& 0xFFFF0000U
) >> 16;
200 if (nvram_getprefix(prefix
, "boardflags2", buf
, sizeof(buf
)) >= 0) {
201 boardflags
= simple_strtoul(buf
, NULL
, 0);
203 sprom
->boardflags2_lo
= (boardflags
& 0x0000FFFFU
);
204 sprom
->boardflags2_hi
= (boardflags
& 0xFFFF0000U
) >> 16;
209 int bcm47xx_get_sprom(struct ssb_bus
*bus
, struct ssb_sprom
*out
)
213 if (bus
->bustype
== SSB_BUSTYPE_PCI
) {
214 snprintf(prefix
, sizeof(prefix
), "pci/%u/%u/",
215 bus
->host_pci
->bus
->number
+ 1,
216 PCI_SLOT(bus
->host_pci
->devfn
));
217 bcm47xx_fill_sprom(out
, prefix
);
220 printk(KERN_WARNING
"bcm47xx: unable to fill SPROM for given bustype.\n");
225 static int bcm47xx_get_invariants(struct ssb_bus
*bus
,
226 struct ssb_init_invariants
*iv
)
230 /* Fill boardinfo structure */
231 memset(&(iv
->boardinfo
), 0 , sizeof(struct ssb_boardinfo
));
233 if (nvram_getenv("boardvendor", buf
, sizeof(buf
)) >= 0)
234 iv
->boardinfo
.vendor
= (u16
)simple_strtoul(buf
, NULL
, 0);
236 iv
->boardinfo
.vendor
= SSB_BOARDVENDOR_BCM
;
237 if (nvram_getenv("boardtype", buf
, sizeof(buf
)) >= 0)
238 iv
->boardinfo
.type
= (u16
)simple_strtoul(buf
, NULL
, 0);
239 if (nvram_getenv("boardrev", buf
, sizeof(buf
)) >= 0)
240 iv
->boardinfo
.rev
= (u16
)simple_strtoul(buf
, NULL
, 0);
242 bcm47xx_fill_sprom(&iv
->sprom
, NULL
);
244 if (nvram_getenv("cardbus", buf
, sizeof(buf
)) >= 0)
245 iv
->has_cardbus_slot
= !!simple_strtoul(buf
, NULL
, 10);
250 void __init
plat_mem_setup(void)
254 struct ssb_mipscore
*mcore
;
256 err
= ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom
);
258 printk(KERN_WARNING
"bcm47xx: someone else already registered"
259 " a ssb SPROM callback handler (err %d)\n", err
);
261 err
= ssb_bus_ssbbus_register(&ssb_bcm47xx
, SSB_ENUM_BASE
,
262 bcm47xx_get_invariants
);
264 panic("Failed to initialize SSB bus (err %d)\n", err
);
266 mcore
= &ssb_bcm47xx
.mipscore
;
267 if (nvram_getenv("kernel_args", buf
, sizeof(buf
)) >= 0) {
268 if (strstr(buf
, "console=ttyS1")) {
269 struct ssb_serial_port port
;
271 printk(KERN_DEBUG
"Swapping serial ports!\n");
272 /* swap serial ports */
273 memcpy(&port
, &mcore
->serial_ports
[0], sizeof(port
));
274 memcpy(&mcore
->serial_ports
[0], &mcore
->serial_ports
[1],
276 memcpy(&mcore
->serial_ports
[1], &port
, sizeof(port
));
280 _machine_restart
= bcm47xx_machine_restart
;
281 _machine_halt
= bcm47xx_machine_halt
;
282 pm_power_off
= bcm47xx_machine_halt
;