arch/mips/bcm47xx/setup.c

   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 }