1 /* 2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> 3 * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> 4 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> 5 * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de> 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/fw/cfe/cfe_api.h> 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 */ 45 ssb_watchdog_timer_set(&ssb_bcm47xx, 1); 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(); 54 ssb_watchdog_timer_set(&ssb_bcm47xx, 0); 55 while (1) 56 cpu_relax(); 57 } 58 59 static void str2eaddr(char *str, char *dest) 60 { 61 int i = 0; 62 63 if (str == NULL) { 64 memset(dest, 0, 6); 65 return; 66 } 67 68 for (;;) { 69 dest[i++] = (char) simple_strtoul(str, NULL, 16); 70 str += 2; 71 if (!*str++ || i == 6) 72 break; 73 } 74 } 75 76 static int bcm47xx_get_invariants(struct ssb_bus *bus, 77 struct ssb_init_invariants *iv) 78 { 79 char buf[100]; 80 81 /* Fill boardinfo structure */ 82 memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); 83 84 if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0) 85 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); 86 if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0) 87 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); 88 if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0) 89 iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); 90 91 /* Fill sprom structure */ 92 memset(&(iv->sprom), 0, sizeof(struct ssb_sprom)); 93 iv->sprom.revision = 3; 94 95 if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0) 96 str2eaddr(buf, iv->sprom.et0mac); 97 if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0) 98 str2eaddr(buf, iv->sprom.et1mac); 99 if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0) 100 iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 10); 101 if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0) 102 iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 10); 103 if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0) 104 iv->sprom.et0mdcport = simple_strtoul(buf, NULL, 10); 105 if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0) 106 iv->sprom.et1mdcport = simple_strtoul(buf, NULL, 10); 107 108 return 0; 109 } 110 111 void __init plat_mem_setup(void) 112 { 113 int err; 114 115 err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, 116 bcm47xx_get_invariants); 117 if (err) 118 panic("Failed to initialize SSB bus (err %d)\n", err); 119 120 _machine_restart = bcm47xx_machine_restart; 121 _machine_halt = bcm47xx_machine_halt; 122 pm_power_off = bcm47xx_machine_halt; 123 } 124 125