cpu/mpc8xxx/cpu.c

   1 /*
   2  * Copyright 2009 Freescale Semiconductor, Inc.
   3  *
   4  * This file is derived from cpu/mpc85xx/cpu.c and cpu/mpc86xx/cpu.c.
   5  * Basically this file contains cpu specific common code for 85xx/86xx
   6  * processors.
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <config.h>
  27 #include <common.h>
  28 #include <command.h>
  29 #include <tsec.h>
  30 #include <netdev.h>
  31 #include <asm/cache.h>
  32 #include <asm/io.h>
  33
  34 DECLARE_GLOBAL_DATA_PTR;
  35
  36 struct cpu_type cpu_type_list [] = {
  37 #if defined(CONFIG_MPC85xx)
  38         CPU_TYPE_ENTRY(8533, 8533, 1),
  39         CPU_TYPE_ENTRY(8533, 8533_E, 1),
  40         CPU_TYPE_ENTRY(8535, 8535, 1),
  41         CPU_TYPE_ENTRY(8535, 8535_E, 1),
  42         CPU_TYPE_ENTRY(8536, 8536, 1),
  43         CPU_TYPE_ENTRY(8536, 8536_E, 1),
  44         CPU_TYPE_ENTRY(8540, 8540, 1),
  45         CPU_TYPE_ENTRY(8541, 8541, 1),
  46         CPU_TYPE_ENTRY(8541, 8541_E, 1),
  47         CPU_TYPE_ENTRY(8543, 8543, 1),
  48         CPU_TYPE_ENTRY(8543, 8543_E, 1),
  49         CPU_TYPE_ENTRY(8544, 8544, 1),
  50         CPU_TYPE_ENTRY(8544, 8544_E, 1),
  51         CPU_TYPE_ENTRY(8545, 8545, 1),
  52         CPU_TYPE_ENTRY(8545, 8545_E, 1),
  53         CPU_TYPE_ENTRY(8547, 8547_E, 1),
  54         CPU_TYPE_ENTRY(8548, 8548, 1),
  55         CPU_TYPE_ENTRY(8548, 8548_E, 1),
  56         CPU_TYPE_ENTRY(8555, 8555, 1),
  57         CPU_TYPE_ENTRY(8555, 8555_E, 1),
  58         CPU_TYPE_ENTRY(8560, 8560, 1),
  59         CPU_TYPE_ENTRY(8567, 8567, 1),
  60         CPU_TYPE_ENTRY(8567, 8567_E, 1),
  61         CPU_TYPE_ENTRY(8568, 8568, 1),
  62         CPU_TYPE_ENTRY(8568, 8568_E, 1),
  63         CPU_TYPE_ENTRY(8569, 8569, 1),
  64         CPU_TYPE_ENTRY(8569, 8569_E, 1),
  65         CPU_TYPE_ENTRY(8572, 8572, 2),
  66         CPU_TYPE_ENTRY(8572, 8572_E, 2),
  67         CPU_TYPE_ENTRY(P1011, P1011, 1),
  68         CPU_TYPE_ENTRY(P1011, P1011_E, 1),
  69         CPU_TYPE_ENTRY(P1020, P1020, 2),
  70         CPU_TYPE_ENTRY(P1020, P1020_E, 2),
  71         CPU_TYPE_ENTRY(P2010, P2010, 1),
  72         CPU_TYPE_ENTRY(P2010, P2010_E, 1),
  73         CPU_TYPE_ENTRY(P2020, P2020, 2),
  74         CPU_TYPE_ENTRY(P2020, P2020_E, 2),
  75 #elif defined(CONFIG_MPC86xx)
  76         CPU_TYPE_ENTRY(8610, 8610, 1),
  77         CPU_TYPE_ENTRY(8641, 8641, 2),
  78         CPU_TYPE_ENTRY(8641D, 8641D, 2),
  79 #endif
  80 };
  81
  82 struct cpu_type *identify_cpu(u32 ver)
  83 {
  84         int i;
  85         for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) {
  86                 if (cpu_type_list[i].soc_ver == ver)
  87                         return &cpu_type_list[i];
  88         }
  89
  90         return NULL;
  91 }
  92
  93 int cpu_numcores() {
  94         struct cpu_type *cpu;
  95         cpu = gd->cpu;
  96         return cpu->num_cores;
  97 }
  98
  99 int probecpu (void)
 100 {
 101         uint svr;
 102         uint ver;
 103
 104         svr = get_svr();
 105         ver = SVR_SOC_VER(svr);
 106
 107         gd->cpu = identify_cpu(ver);
 108
 109 #ifndef CONFIG_MP
 110         if (cpu_numcores() > 1) {
 111                 puts("Unicore software on multiprocessor system!!\n"
 112                      "To enable mutlticore build define CONFIG_MP\n");
 113         }
 114 #endif
 115         return 0;
 116 }
 117
 118 /*
 119  * Initializes on-chip ethernet controllers.
 120  * to override, implement board_eth_init()
 121  */
 122 int cpu_eth_init(bd_t *bis)
 123 {
 124 #if defined(CONFIG_ETHER_ON_FCC)
 125         fec_initialize(bis);
 126 #endif
 127
 128 #if defined(CONFIG_UEC_ETH)
 129         uec_standard_init(bis);
 130 #endif
 131
 132 #if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC)
 133         tsec_standard_init(bis);
 134 #endif
 135
 136         return 0;
 137 }