target/linux/aruba-2.6/files/arch/mips/aruba/setup.c

   1 /**************************************************************************
   2  *
   3  *  BRIEF MODULE DESCRIPTION
   4  *     setup routines for IDT EB434 boards
   5  *
   6  *  Copyright 2004 IDT Inc. (rischelp@idt.com)
   7  *
   8  *  This program is free software; you can redistribute  it and/or modify it
   9  *  under  the terms of  the GNU General  Public License as published by the
  10  *  Free Software Foundation;  either version 2 of the  License, or (at your
  11  *  option) any later version.
  12  *
  13  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  14  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  15  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  16  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  17  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  18  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  19  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  21  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  22  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  *
  24  *  You should have received a copy of the  GNU General Public License along
  25  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  26  *  675 Mass Ave, Cambridge, MA 02139, USA.
  27  *
  28  *
  29  **************************************************************************
  30  * May 2004 rkt, neb
  31  *
  32  * Initial Release
  33  *
  34  *
  35  *
  36  **************************************************************************
  37  */
  38
  39 #include <linux/init.h>
  40 #include <linux/module.h>
  41 #include <linux/mm.h>
  42 #include <linux/sched.h>
  43 #include <linux/irq.h>
  44 #include <asm/bootinfo.h>
  45 #include <asm/io.h>
  46 #include <linux/ioport.h>
  47 #include <asm/mipsregs.h>
  48 #include <asm/pgtable.h>
  49 #include <asm/reboot.h>
  50 #include <asm/addrspace.h>      /* for KSEG1ADDR() */
  51 #include <asm/idt-boards/rc32434/rc32434.h>
  52 #include <linux/pm.h>
  53
  54 extern char *__init prom_getcmdline(void);
  55
  56 extern void (*board_time_init) (void);
  57 extern void aruba_time_init(void);
  58 extern void aruba_reset(void);
  59
  60 #define epldMask ((volatile unsigned char *)0xB900000d)
  61
  62 static void aruba_machine_restart(char *command)
  63 {
  64         switch (mips_machtype) {
  65                 case MACH_ARUBA_AP70:
  66                         *(volatile u32 *)KSEG1ADDR(0x18008000) = 0x80000001;
  67                         break;
  68                 case MACH_ARUBA_AP65:
  69                 case MACH_ARUBA_AP60:
  70                 default:
  71                         /* Reset*/
  72                         *((volatile u32 *)KSEG1ADDR(0x1c003020)) = 0x00080350; // reset everything in sight
  73                         udelay(100);
  74                         *((volatile u32 *)KSEG1ADDR(0x1c003020)) = 0; // reset everything in sight
  75                         udelay(100);
  76                         *((volatile u32 *)KSEG1ADDR(0x1c003020)) = 0x3; // cold reset the cpu & system
  77                         break;
  78         }
  79 }
  80
  81 static void aruba_machine_halt(void)
  82 {
  83         for (;;) continue;
  84 }
  85
  86 extern char * getenv(char *e);
  87 extern void unlock_ap60_70_flash(void);
  88
  89 void __init plat_mem_setup(void)
  90 {
  91         board_time_init = aruba_time_init;
  92
  93         _machine_restart = aruba_machine_restart;
  94         _machine_halt = aruba_machine_halt;
  95         pm_power_off = aruba_machine_halt;
  96
  97         set_io_port_base(KSEG1);
  98
  99         /* Enable PCI interrupts in EPLD Mask register */
 100         *epldMask = 0x0;
 101         *(epldMask + 1) = 0x0;
 102
 103         write_c0_wired(0);
 104         unlock_ap60_70_flash();
 105
 106         printk("BOARD - %s\n",getenv("boardname"));
 107 }
 108
 109 int page_is_ram(unsigned long pagenr)
 110 {
 111         return 1;
 112 }
 113
 114 const char *get_system_type(void)
 115 {
 116         switch (mips_machtype) {
 117                 case MACH_ARUBA_AP70:
 118                         return "Aruba AP70";
 119                 case MACH_ARUBA_AP65:
 120                         return "Aruba AP65";
 121                 case MACH_ARUBA_AP60:
 122                         return "Aruba AP60/AP61";
 123                 default:
 124                         return "Aruba UNKNOWN";
 125         }
 126 }
 127
 128 EXPORT_SYMBOL(get_system_type);