api/api_platform-ppc.c

   1 /*
   2  * (C) Copyright 2007 Semihalf
   3  *
   4  * Written by: Rafal Jaworowski <raj@semihalf.com>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  *
  24  *
  25  * This file contains routines that fetch data from PowerPC-dependent sources
  26  * (bd_info etc.)
  27  *
  28  */
  29
  30 #include <config.h>
  31 #include <linux/types.h>
  32 #include <api_public.h>
  33
  34 #include <asm/u-boot.h>
  35 #include <asm/global_data.h>
  36
  37 #include "api_private.h"
  38
  39 DECLARE_GLOBAL_DATA_PTR;
  40
  41 /*
  42  * Important notice: handling of individual fields MUST be kept in sync with
  43  * include/asm-ppc/u-boot.h and include/asm-ppc/global_data.h, so any changes
  44  * need to reflect their current state and layout of structures involved!
  45  */
  46 int platform_sys_info(struct sys_info *si)
  47 {
  48         si->clk_bus = gd->bus_clk;
  49         si->clk_cpu = gd->cpu_clk;
  50
  51 #if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) || \
  52     defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
  53 #define bi_bar  bi_immr_base
  54 #elif defined(CONFIG_MPC5xxx)
  55 #define bi_bar  bi_mbar_base
  56 #elif defined(CONFIG_MPC83xx)
  57 #define bi_bar  bi_immrbar
  58 #elif defined(CONFIG_MPC8220)
  59 #define bi_bar  bi_mbar_base
  60 #endif
  61
  62 #if defined(bi_bar)
  63         si->bar = gd->bd->bi_bar;
  64 #undef bi_bar
  65 #else
  66         si->bar = 0;
  67 #endif
  68
  69         platform_set_mr(si, gd->bd->bi_memstart, gd->bd->bi_memsize, MR_ATTR_DRAM);
  70         platform_set_mr(si, gd->bd->bi_flashstart, gd->bd->bi_flashsize, MR_ATTR_FLASH);
  71         platform_set_mr(si, gd->bd->bi_sramstart, gd->bd->bi_sramsize, MR_ATTR_SRAM);
  72
  73         return 1;
  74 }