arch/mips/bcm47xx/setup.c

   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 <asm/bootinfo.h>
  31 #include <asm/reboot.h>
  32 #include <asm/time.h>
  33 #include <bcm47xx.h>
  34 #include <asm/fw/cfe/cfe_api.h>
  35
  36 struct ssb_bus ssb_bcm47xx;
  37 EXPORT_SYMBOL(ssb_bcm47xx);
  38
  39 static void bcm47xx_machine_restart(char *command)
  40 {
  41         printk(KERN_ALERT "Please stand by while rebooting the system...\n");
  42         local_irq_disable();
  43         /* Set the watchdog timer to reset immediately */
  44         ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 1);
  45         while (1)
  46                 cpu_relax();
  47 }
  48
  49 static void bcm47xx_machine_halt(void)
  50 {
  51         /* Disable interrupts and watchdog and spin forever */
  52         local_irq_disable();
  53         ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 0);
  54         while (1)
  55                 cpu_relax();
  56 }
  57
  58 static void str2eaddr(char *str, char *dest)
  59 {
  60         int i = 0;
  61
  62         if (str == NULL) {
  63                 memset(dest, 0, 6);
  64                 return;
  65         }
  66
  67         for (;;) {
  68                 dest[i++] = (char) simple_strtoul(str, NULL, 16);
  69                 str += 2;
  70                 if (!*str++ || i == 6)
  71                         break;
  72         }
  73 }
  74
  75 static int bcm47xx_get_invariants(struct ssb_bus *bus,
  76                                    struct ssb_init_invariants *iv)
  77 {
  78         char buf[100];
  79
  80         /* Fill boardinfo structure */
  81         memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo));
  82
  83         if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0)
  84                 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
  85         if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0)
  86                 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
  87         if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0)
  88                 iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0);
  89
  90         /* Fill sprom structure */
  91         memset(&(iv->sprom), 0, sizeof(struct ssb_sprom));
  92         iv->sprom.revision = 3;
  93
  94         if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0)
  95                 str2eaddr(buf, iv->sprom.r1.et0mac);
  96         if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0)
  97                 str2eaddr(buf, iv->sprom.r1.et1mac);
  98         if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0)
  99                 iv->sprom.r1.et0phyaddr = simple_strtoul(buf, NULL, 10);
 100         if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0)
 101                 iv->sprom.r1.et1phyaddr = simple_strtoul(buf, NULL, 10);
 102         if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0)
 103                 iv->sprom.r1.et0mdcport = simple_strtoul(buf, NULL, 10);
 104         if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0)
 105                 iv->sprom.r1.et1mdcport = simple_strtoul(buf, NULL, 10);
 106
 107         return 0;
 108 }
 109
 110 void __init plat_mem_setup(void)
 111 {
 112         int err;
 113
 114         err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE,
 115                                       bcm47xx_get_invariants);
 116         if (err)
 117                 panic("Failed to initialize SSB bus (err %d)\n", err);
 118
 119         _machine_restart = bcm47xx_machine_restart;
 120         _machine_halt = bcm47xx_machine_halt;
 121         pm_power_off = bcm47xx_machine_halt;
 122 }
 123