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1c0c13eb AJ |
1 | /* |
2 | * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> | |
1c0c13eb AJ |
3 | * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> |
4 | * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de> | |
121915c4 | 5 | * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org> |
1c0c13eb AJ |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
13 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
14 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
15 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
16 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
17 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
18 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
19 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
20 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
21 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License along | |
24 | * with this program; if not, write to the Free Software Foundation, Inc., | |
25 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
26 | */ | |
27 | ||
28 | #include <linux/types.h> | |
29 | #include <linux/ssb/ssb.h> | |
b06f3e19 | 30 | #include <linux/ssb/ssb_embedded.h> |
25e5fb97 | 31 | #include <asm/bootinfo.h> |
1c0c13eb AJ |
32 | #include <asm/reboot.h> |
33 | #include <asm/time.h> | |
34 | #include <bcm47xx.h> | |
121915c4 | 35 | #include <asm/mach-bcm47xx/nvram.h> |
1c0c13eb AJ |
36 | |
37 | struct ssb_bus ssb_bcm47xx; | |
38 | EXPORT_SYMBOL(ssb_bcm47xx); | |
39 | ||
40 | static void bcm47xx_machine_restart(char *command) | |
41 | { | |
42 | printk(KERN_ALERT "Please stand by while rebooting the system...\n"); | |
43 | local_irq_disable(); | |
44 | /* Set the watchdog timer to reset immediately */ | |
b06f3e19 | 45 | ssb_watchdog_timer_set(&ssb_bcm47xx, 1); |
1c0c13eb AJ |
46 | while (1) |
47 | cpu_relax(); | |
48 | } | |
49 | ||
50 | static void bcm47xx_machine_halt(void) | |
51 | { | |
52 | /* Disable interrupts and watchdog and spin forever */ | |
53 | local_irq_disable(); | |
b06f3e19 | 54 | ssb_watchdog_timer_set(&ssb_bcm47xx, 0); |
1c0c13eb AJ |
55 | while (1) |
56 | cpu_relax(); | |
57 | } | |
58 | ||
2aa088d6 | 59 | #define READ_FROM_NVRAM(_outvar, name, buf) \ |
a7c62f85 | 60 | if (nvram_getprefix(prefix, name, buf, sizeof(buf)) >= 0)\ |
2aa088d6 HM |
61 | sprom->_outvar = simple_strtoul(buf, NULL, 0); |
62 | ||
a7c62f85 HM |
63 | static inline int nvram_getprefix(const char *prefix, char *name, |
64 | char *buf, int len) | |
65 | { | |
66 | if (prefix) { | |
67 | char key[100]; | |
68 | ||
69 | snprintf(key, sizeof(key), "%s%s", prefix, name); | |
70 | return nvram_getenv(key, buf, len); | |
71 | } | |
72 | ||
73 | return nvram_getenv(name, buf, len); | |
74 | } | |
75 | ||
76 | static void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix) | |
2aa088d6 HM |
77 | { |
78 | char buf[100]; | |
79 | u32 boardflags; | |
80 | ||
81 | memset(sprom, 0, sizeof(struct ssb_sprom)); | |
82 | ||
83 | sprom->revision = 1; /* Fallback: Old hardware does not define this. */ | |
84 | READ_FROM_NVRAM(revision, "sromrev", buf); | |
a7c62f85 | 85 | if (nvram_getprefix(prefix, "il0macaddr", buf, sizeof(buf)) >= 0) |
59833fcf | 86 | nvram_parse_macaddr(buf, sprom->il0mac); |
a7c62f85 | 87 | if (nvram_getprefix(prefix, "et0macaddr", buf, sizeof(buf)) >= 0) |
59833fcf | 88 | nvram_parse_macaddr(buf, sprom->et0mac); |
a7c62f85 | 89 | if (nvram_getprefix(prefix, "et1macaddr", buf, sizeof(buf)) >= 0) |
59833fcf | 90 | nvram_parse_macaddr(buf, sprom->et1mac); |
2aa088d6 HM |
91 | READ_FROM_NVRAM(et0phyaddr, "et0phyaddr", buf); |
92 | READ_FROM_NVRAM(et1phyaddr, "et1phyaddr", buf); | |
93 | READ_FROM_NVRAM(et0mdcport, "et0mdcport", buf); | |
94 | READ_FROM_NVRAM(et1mdcport, "et1mdcport", buf); | |
95 | READ_FROM_NVRAM(board_rev, "boardrev", buf); | |
96 | READ_FROM_NVRAM(country_code, "ccode", buf); | |
97 | READ_FROM_NVRAM(ant_available_a, "aa5g", buf); | |
98 | READ_FROM_NVRAM(ant_available_bg, "aa2g", buf); | |
99 | READ_FROM_NVRAM(pa0b0, "pa0b0", buf); | |
100 | READ_FROM_NVRAM(pa0b1, "pa0b1", buf); | |
101 | READ_FROM_NVRAM(pa0b2, "pa0b2", buf); | |
102 | READ_FROM_NVRAM(pa1b0, "pa1b0", buf); | |
103 | READ_FROM_NVRAM(pa1b1, "pa1b1", buf); | |
104 | READ_FROM_NVRAM(pa1b2, "pa1b2", buf); | |
105 | READ_FROM_NVRAM(pa1lob0, "pa1lob0", buf); | |
106 | READ_FROM_NVRAM(pa1lob2, "pa1lob1", buf); | |
107 | READ_FROM_NVRAM(pa1lob1, "pa1lob2", buf); | |
108 | READ_FROM_NVRAM(pa1hib0, "pa1hib0", buf); | |
109 | READ_FROM_NVRAM(pa1hib2, "pa1hib1", buf); | |
110 | READ_FROM_NVRAM(pa1hib1, "pa1hib2", buf); | |
111 | READ_FROM_NVRAM(gpio0, "wl0gpio0", buf); | |
112 | READ_FROM_NVRAM(gpio1, "wl0gpio1", buf); | |
113 | READ_FROM_NVRAM(gpio2, "wl0gpio2", buf); | |
114 | READ_FROM_NVRAM(gpio3, "wl0gpio3", buf); | |
115 | READ_FROM_NVRAM(maxpwr_bg, "pa0maxpwr", buf); | |
116 | READ_FROM_NVRAM(maxpwr_al, "pa1lomaxpwr", buf); | |
117 | READ_FROM_NVRAM(maxpwr_a, "pa1maxpwr", buf); | |
118 | READ_FROM_NVRAM(maxpwr_ah, "pa1himaxpwr", buf); | |
119 | READ_FROM_NVRAM(itssi_a, "pa1itssit", buf); | |
120 | READ_FROM_NVRAM(itssi_bg, "pa0itssit", buf); | |
121 | READ_FROM_NVRAM(tri2g, "tri2g", buf); | |
122 | READ_FROM_NVRAM(tri5gl, "tri5gl", buf); | |
123 | READ_FROM_NVRAM(tri5g, "tri5g", buf); | |
124 | READ_FROM_NVRAM(tri5gh, "tri5gh", buf); | |
125 | READ_FROM_NVRAM(rxpo2g, "rxpo2g", buf); | |
126 | READ_FROM_NVRAM(rxpo5g, "rxpo5g", buf); | |
127 | READ_FROM_NVRAM(rssisav2g, "rssisav2g", buf); | |
128 | READ_FROM_NVRAM(rssismc2g, "rssismc2g", buf); | |
129 | READ_FROM_NVRAM(rssismf2g, "rssismf2g", buf); | |
130 | READ_FROM_NVRAM(bxa2g, "bxa2g", buf); | |
131 | READ_FROM_NVRAM(rssisav5g, "rssisav5g", buf); | |
132 | READ_FROM_NVRAM(rssismc5g, "rssismc5g", buf); | |
133 | READ_FROM_NVRAM(rssismf5g, "rssismf5g", buf); | |
134 | READ_FROM_NVRAM(bxa5g, "bxa5g", buf); | |
135 | READ_FROM_NVRAM(cck2gpo, "cck2gpo", buf); | |
136 | READ_FROM_NVRAM(ofdm2gpo, "ofdm2gpo", buf); | |
137 | READ_FROM_NVRAM(ofdm5glpo, "ofdm5glpo", buf); | |
138 | READ_FROM_NVRAM(ofdm5gpo, "ofdm5gpo", buf); | |
139 | READ_FROM_NVRAM(ofdm5ghpo, "ofdm5ghpo", buf); | |
140 | ||
a7c62f85 | 141 | if (nvram_getprefix(prefix, "boardflags", buf, sizeof(buf)) >= 0) { |
2aa088d6 HM |
142 | boardflags = simple_strtoul(buf, NULL, 0); |
143 | if (boardflags) { | |
144 | sprom->boardflags_lo = (boardflags & 0x0000FFFFU); | |
145 | sprom->boardflags_hi = (boardflags & 0xFFFF0000U) >> 16; | |
146 | } | |
147 | } | |
a7c62f85 | 148 | if (nvram_getprefix(prefix, "boardflags2", buf, sizeof(buf)) >= 0) { |
2aa088d6 HM |
149 | boardflags = simple_strtoul(buf, NULL, 0); |
150 | if (boardflags) { | |
151 | sprom->boardflags2_lo = (boardflags & 0x0000FFFFU); | |
152 | sprom->boardflags2_hi = (boardflags & 0xFFFF0000U) >> 16; | |
153 | } | |
154 | } | |
155 | } | |
156 | ||
1c0c13eb AJ |
157 | static int bcm47xx_get_invariants(struct ssb_bus *bus, |
158 | struct ssb_init_invariants *iv) | |
159 | { | |
2aa088d6 | 160 | char buf[20]; |
25e5fb97 AJ |
161 | |
162 | /* Fill boardinfo structure */ | |
163 | memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); | |
164 | ||
82571084 | 165 | if (nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) |
2aa088d6 HM |
166 | iv->boardinfo.vendor = (u16)simple_strtoul(buf, NULL, 0); |
167 | else | |
168 | iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM; | |
82571084 | 169 | if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) |
25e5fb97 | 170 | iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); |
82571084 | 171 | if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) |
25e5fb97 AJ |
172 | iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); |
173 | ||
a7c62f85 | 174 | bcm47xx_fill_sprom(&iv->sprom, NULL); |
121915c4 | 175 | |
2aa088d6 HM |
176 | if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0) |
177 | iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10); | |
25e5fb97 | 178 | |
1c0c13eb AJ |
179 | return 0; |
180 | } | |
181 | ||
182 | void __init plat_mem_setup(void) | |
183 | { | |
184 | int err; | |
1690a7f9 HM |
185 | char buf[100]; |
186 | struct ssb_mipscore *mcore; | |
1c0c13eb AJ |
187 | |
188 | err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, | |
189 | bcm47xx_get_invariants); | |
190 | if (err) | |
191 | panic("Failed to initialize SSB bus (err %d)\n", err); | |
192 | ||
1690a7f9 HM |
193 | mcore = &ssb_bcm47xx.mipscore; |
194 | if (nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) { | |
195 | if (strstr(buf, "console=ttyS1")) { | |
196 | struct ssb_serial_port port; | |
197 | ||
198 | printk(KERN_DEBUG "Swapping serial ports!\n"); | |
199 | /* swap serial ports */ | |
200 | memcpy(&port, &mcore->serial_ports[0], sizeof(port)); | |
201 | memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1], | |
202 | sizeof(port)); | |
203 | memcpy(&mcore->serial_ports[1], &port, sizeof(port)); | |
204 | } | |
205 | } | |
206 | ||
1c0c13eb AJ |
207 | _machine_restart = bcm47xx_machine_restart; |
208 | _machine_halt = bcm47xx_machine_halt; | |
209 | pm_power_off = bcm47xx_machine_halt; | |
1c0c13eb | 210 | } |