kernel/linux/arch/ppc/platforms/tqm8260_setup.c

   1 /*
   2  * arch/ppc/platforms/tqm8260_setup.c
   3  *
   4  * TQM8260 platform support
   5  *
   6  * Author: Allen Curtis <acurtis@onz.com>
   7  * Derived from: m8260_setup.c by Dan Malek, MVista
   8  *
   9  * Copyright 2002 Ones and Zeros, Inc.
  10  *
  11  * This program is free software; you can redistribute  it and/or modify it
  12  * under  the terms of  the GNU General  Public License as published by the
  13  * Free Software Foundation;  either version 2 of the  License, or (at your
  14  * option) any later version.
  15  */
  16
  17 #include <linux/config.h>
  18 #include <linux/seq_file.h>
  19
  20 #include <asm/immap_cpm2.h>
  21 #include <asm/mpc8260.h>
  22 #include <asm/machdep.h>
  23
  24 static void (*callback_setup_arch)(void);
  25
  26 extern unsigned char __res[sizeof(bd_t)];
  27
  28 extern void m8260_init(unsigned long r3, unsigned long r4,
  29         unsigned long r5, unsigned long r6, unsigned long r7);
  30
  31 static int
  32 tqm8260_show_cpuinfo(struct seq_file *m)
  33 {
  34         bd_t    *binfo = (bd_t *)__res;
  35
  36         seq_printf(m, "vendor\t\t: IN2 Systems\n"
  37                       "machine\t\t: TQM8260 PowerPC\n"
  38                       "mem size\t\t: 0x%08x\n"
  39                       "\n",
  40                       binfo->bi_memsize);
  41         return 0;
  42 }
  43
  44 static int
  45 tqm8260_set_rtc_time(unsigned long time)
  46 {
  47         ((cpm2_map_t *)CPM_MAP_ADDR)->im_sit.sit_tmcnt = time;
  48         ((cpm2_map_t *)CPM_MAP_ADDR)->im_sit.sit_tmcntsc = 0x3;
  49
  50         return(0);
  51 }
  52
  53 static unsigned long
  54 tqm8260_get_rtc_time(void)
  55 {
  56         return ((cpm2_map_t *)CPM_MAP_ADDR)->im_sit.sit_tmcnt;
  57 }
  58
  59 static void __init
  60 tqm8260_setup_arch(void)
  61 {
  62         printk("IN2 Systems TQM8260 port\n");
  63         callback_setup_arch();
  64 }
  65
  66 void __init
  67 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  68               unsigned long r6, unsigned long r7)
  69 {
  70         /* Generic 8260 platform initialization */
  71         m8260_init(r3, r4, r5, r6, r7);
  72
  73         /* Anything special for this platform */
  74         ppc_md.show_cpuinfo     = tqm8260_show_cpuinfo;
  75         ppc_md.set_rtc_time     = tqm8260_set_rtc_time;
  76         ppc_md.get_rtc_time     = tqm8260_get_rtc_time;
  77
  78         callback_setup_arch     = ppc_md.setup_arch;
  79         ppc_md.setup_arch       = tqm8260_setup_arch;