api/api_platform-powerpc.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2007 Semihalf
   4  *
   5  * Written by: Rafal Jaworowski <raj@semihalf.com>
   6  *
   7  * This file contains routines that fetch data from PowerPC-dependent sources
   8  * (bd_info etc.)
   9  */
  10
  11 #include <config.h>
  12 #include <linux/types.h>
  13 #include <api_public.h>
  14
  15 #include <asm/u-boot.h>
  16 #include <asm/global_data.h>
  17
  18 #include "api_private.h"
  19
  20 DECLARE_GLOBAL_DATA_PTR;
  21
  22 /*
  23  * Important notice: handling of individual fields MUST be kept in sync with
  24  * include/asm-ppc/u-boot.h and include/asm-ppc/global_data.h, so any changes
  25  * need to reflect their current state and layout of structures involved!
  26  */
  27 int platform_sys_info(struct sys_info *si)
  28 {
  29         si->clk_bus = gd->bus_clk;
  30         si->clk_cpu = gd->cpu_clk;
  31
  32 #if defined(CONFIG_MPC8xx) || defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
  33 #define bi_bar  bi_immr_base
  34 #elif defined(CONFIG_MPC83xx)
  35 #define bi_bar  bi_immrbar
  36 #endif
  37
  38 #if defined(bi_bar)
  39         si->bar = gd->bd->bi_bar;
  40 #undef bi_bar
  41 #else
  42         si->bar = 0;
  43 #endif
  44
  45         platform_set_mr(si, gd->bd->bi_memstart, gd->bd->bi_memsize, MR_ATTR_DRAM);
  46         platform_set_mr(si, gd->bd->bi_flashstart, gd->bd->bi_flashsize, MR_ATTR_FLASH);
  47         platform_set_mr(si, gd->bd->bi_sramstart, gd->bd->bi_sramsize, MR_ATTR_SRAM);
  48
  49         return 1;
  50 }