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/fw/cfe/cfe_api.h> 36 #include <asm/mach-bcm47xx/nvram.h> 37 38 struct ssb_bus ssb_bcm47xx; 39 EXPORT_SYMBOL(ssb_bcm47xx); 40 41 static void bcm47xx_machine_restart(char *command) 42 { 43 printk(KERN_ALERT "Please stand by while rebooting the system...\n"); 44 local_irq_disable(); 45 /* Set the watchdog timer to reset immediately */ 46 ssb_watchdog_timer_set(&ssb_bcm47xx, 1); 47 while (1) 48 cpu_relax(); 49 } 50 51 static void bcm47xx_machine_halt(void) 52 { 53 /* Disable interrupts and watchdog and spin forever */ 54 local_irq_disable(); 55 ssb_watchdog_timer_set(&ssb_bcm47xx, 0); 56 while (1) 57 cpu_relax(); 58 } 59 60 static void str2eaddr(char *str, char *dest) 61 { 62 int i = 0; 63 64 if (str == NULL) { 65 memset(dest, 0, 6); 66 return; 67 } 68 69 for (;;) { 70 dest[i++] = (char) simple_strtoul(str, NULL, 16); 71 str += 2; 72 if (!*str++ || i == 6) 73 break; 74 } 75 } 76 77 static int bcm47xx_get_invariants(struct ssb_bus *bus, 78 struct ssb_init_invariants *iv) 79 { 80 char buf[100]; 81 82 /* Fill boardinfo structure */ 83 memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); 84 85 if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0 || 86 nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) 87 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); 88 if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0 || 89 nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) 90 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); 91 if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0 || 92 nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) 93 iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); 94 95 /* Fill sprom structure */ 96 memset(&(iv->sprom), 0, sizeof(struct ssb_sprom)); 97 iv->sprom.revision = 3; 98 99 if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0 || 100 nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) 101 str2eaddr(buf, iv->sprom.et0mac); 102 103 if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0 || 104 nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) 105 str2eaddr(buf, iv->sprom.et1mac); 106 107 if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0 || 108 nvram_getenv("et0phyaddr", buf, sizeof(buf)) >= 0) 109 iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 0); 110 111 if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0 || 112 nvram_getenv("et1phyaddr", buf, sizeof(buf)) >= 0) 113 iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 0); 114 115 if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0 || 116 nvram_getenv("et0mdcport", buf, sizeof(buf)) >= 0) 117 iv->sprom.et0mdcport = simple_strtoul(buf, NULL, 10); 118 119 if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0 || 120 nvram_getenv("et1mdcport", buf, sizeof(buf)) >= 0) 121 iv->sprom.et1mdcport = simple_strtoul(buf, NULL, 10); 122 123 return 0; 124 } 125 126 void __init plat_mem_setup(void) 127 { 128 int err; 129 130 err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, 131 bcm47xx_get_invariants); 132 if (err) 133 panic("Failed to initialize SSB bus (err %d)\n", err); 134 135 _machine_restart = bcm47xx_machine_restart; 136 _machine_halt = bcm47xx_machine_halt; 137 pm_power_off = bcm47xx_machine_halt; 138 } 139