1/* 2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> 3 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> 4 * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de> 5 * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org> 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> 30#include <linux/ssb/ssb_embedded.h> 31#include <asm/bootinfo.h> 32#include <asm/reboot.h> 33#include <asm/time.h> 34#include <bcm47xx.h> 35#include <asm/mach-bcm47xx/nvram.h> 36 37struct ssb_bus ssb_bcm47xx; 38EXPORT_SYMBOL(ssb_bcm47xx); 39 40static 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 */ 45 ssb_watchdog_timer_set(&ssb_bcm47xx, 1); 46 while (1) 47 cpu_relax(); 48} 49 50static void bcm47xx_machine_halt(void) 51{ 52 /* Disable interrupts and watchdog and spin forever */ 53 local_irq_disable(); 54 ssb_watchdog_timer_set(&ssb_bcm47xx, 0); 55 while (1) 56 cpu_relax(); 57} 58 59#define READ_FROM_NVRAM(_outvar, name, buf) \ 60 if (nvram_getenv(name, buf, sizeof(buf)) >= 0)\ 61 sprom->_outvar = simple_strtoul(buf, NULL, 0); 62 63static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) 64{ 65 char buf[100]; 66 u32 boardflags; 67 68 memset(sprom, 0, sizeof(struct ssb_sprom)); 69 70 sprom->revision = 1; /* Fallback: Old hardware does not define this. */ 71 READ_FROM_NVRAM(revision, "sromrev", buf); 72 if (nvram_getenv("il0macaddr", buf, sizeof(buf)) >= 0) 73 nvram_parse_macaddr(buf, sprom->il0mac); 74 if (nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) 75 nvram_parse_macaddr(buf, sprom->et0mac); 76 if (nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) 77 nvram_parse_macaddr(buf, sprom->et1mac); 78 READ_FROM_NVRAM(et0phyaddr, "et0phyaddr", buf); 79 READ_FROM_NVRAM(et1phyaddr, "et1phyaddr", buf); 80 READ_FROM_NVRAM(et0mdcport, "et0mdcport", buf); 81 READ_FROM_NVRAM(et1mdcport, "et1mdcport", buf); 82 READ_FROM_NVRAM(board_rev, "boardrev", buf); 83 READ_FROM_NVRAM(country_code, "ccode", buf); 84 READ_FROM_NVRAM(ant_available_a, "aa5g", buf); 85 READ_FROM_NVRAM(ant_available_bg, "aa2g", buf); 86 READ_FROM_NVRAM(pa0b0, "pa0b0", buf); 87 READ_FROM_NVRAM(pa0b1, "pa0b1", buf); 88 READ_FROM_NVRAM(pa0b2, "pa0b2", buf); 89 READ_FROM_NVRAM(pa1b0, "pa1b0", buf); 90 READ_FROM_NVRAM(pa1b1, "pa1b1", buf); 91 READ_FROM_NVRAM(pa1b2, "pa1b2", buf); 92 READ_FROM_NVRAM(pa1lob0, "pa1lob0", buf); 93 READ_FROM_NVRAM(pa1lob2, "pa1lob1", buf); 94 READ_FROM_NVRAM(pa1lob1, "pa1lob2", buf); 95 READ_FROM_NVRAM(pa1hib0, "pa1hib0", buf); 96 READ_FROM_NVRAM(pa1hib2, "pa1hib1", buf); 97 READ_FROM_NVRAM(pa1hib1, "pa1hib2", buf); 98 READ_FROM_NVRAM(gpio0, "wl0gpio0", buf); 99 READ_FROM_NVRAM(gpio1, "wl0gpio1", buf); 100 READ_FROM_NVRAM(gpio2, "wl0gpio2", buf); 101 READ_FROM_NVRAM(gpio3, "wl0gpio3", buf); 102 READ_FROM_NVRAM(maxpwr_bg, "pa0maxpwr", buf); 103 READ_FROM_NVRAM(maxpwr_al, "pa1lomaxpwr", buf); 104 READ_FROM_NVRAM(maxpwr_a, "pa1maxpwr", buf); 105 READ_FROM_NVRAM(maxpwr_ah, "pa1himaxpwr", buf); 106 READ_FROM_NVRAM(itssi_a, "pa1itssit", buf); 107 READ_FROM_NVRAM(itssi_bg, "pa0itssit", buf); 108 READ_FROM_NVRAM(tri2g, "tri2g", buf); 109 READ_FROM_NVRAM(tri5gl, "tri5gl", buf); 110 READ_FROM_NVRAM(tri5g, "tri5g", buf); 111 READ_FROM_NVRAM(tri5gh, "tri5gh", buf); 112 READ_FROM_NVRAM(rxpo2g, "rxpo2g", buf); 113 READ_FROM_NVRAM(rxpo5g, "rxpo5g", buf); 114 READ_FROM_NVRAM(rssisav2g, "rssisav2g", buf); 115 READ_FROM_NVRAM(rssismc2g, "rssismc2g", buf); 116 READ_FROM_NVRAM(rssismf2g, "rssismf2g", buf); 117 READ_FROM_NVRAM(bxa2g, "bxa2g", buf); 118 READ_FROM_NVRAM(rssisav5g, "rssisav5g", buf); 119 READ_FROM_NVRAM(rssismc5g, "rssismc5g", buf); 120 READ_FROM_NVRAM(rssismf5g, "rssismf5g", buf); 121 READ_FROM_NVRAM(bxa5g, "bxa5g", buf); 122 READ_FROM_NVRAM(cck2gpo, "cck2gpo", buf); 123 READ_FROM_NVRAM(ofdm2gpo, "ofdm2gpo", buf); 124 READ_FROM_NVRAM(ofdm5glpo, "ofdm5glpo", buf); 125 READ_FROM_NVRAM(ofdm5gpo, "ofdm5gpo", buf); 126 READ_FROM_NVRAM(ofdm5ghpo, "ofdm5ghpo", buf); 127 128 if (nvram_getenv("boardflags", buf, sizeof(buf)) >= 0) { 129 boardflags = simple_strtoul(buf, NULL, 0); 130 if (boardflags) { 131 sprom->boardflags_lo = (boardflags & 0x0000FFFFU); 132 sprom->boardflags_hi = (boardflags & 0xFFFF0000U) >> 16; 133 } 134 } 135 if (nvram_getenv("boardflags2", buf, sizeof(buf)) >= 0) { 136 boardflags = simple_strtoul(buf, NULL, 0); 137 if (boardflags) { 138 sprom->boardflags2_lo = (boardflags & 0x0000FFFFU); 139 sprom->boardflags2_hi = (boardflags & 0xFFFF0000U) >> 16; 140 } 141 } 142} 143 144static int bcm47xx_get_invariants(struct ssb_bus *bus, 145 struct ssb_init_invariants *iv) 146{ 147 char buf[20]; 148 149 /* Fill boardinfo structure */ 150 memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); 151 152 if (nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) 153 iv->boardinfo.vendor = (u16)simple_strtoul(buf, NULL, 0); 154 else 155 iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM; 156 if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) 157 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); 158 if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) 159 iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); 160 161 bcm47xx_fill_sprom(&iv->sprom); 162 163 if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0) 164 iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10); 165 166 return 0; 167} 168 169void __init plat_mem_setup(void) 170{ 171 int err; 172 char buf[100]; 173 struct ssb_mipscore *mcore; 174 175 err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, 176 bcm47xx_get_invariants); 177 if (err) 178 panic("Failed to initialize SSB bus (err %d)\n", err); 179 180 mcore = &ssb_bcm47xx.mipscore; 181 if (nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) { 182 if (strstr(buf, "console=ttyS1")) { 183 struct ssb_serial_port port; 184 185 printk(KERN_DEBUG "Swapping serial ports!\n"); 186 /* swap serial ports */ 187 memcpy(&port, &mcore->serial_ports[0], sizeof(port)); 188 memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1], 189 sizeof(port)); 190 memcpy(&mcore->serial_ports[1], &port, sizeof(port)); 191 } 192 } 193 194 _machine_restart = bcm47xx_machine_restart; 195 _machine_halt = bcm47xx_machine_halt; 196 pm_power_off = bcm47xx_machine_halt; 197} 198