arch/arm/mach-uniphier/boards.c

   1 /*
   2  * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <libfdt.h>
   8 #include <linux/kernel.h>
   9 #include <mach/init.h>
  10
  11 #if defined(CONFIG_ARCH_UNIPHIER_PH1_SLD3)
  12 static const struct uniphier_board_data ph1_sld3_data = {
  13         .dram_ch0_base  = 0x80000000,
  14         .dram_ch0_size  = 0x20000000,
  15         .dram_ch0_width = 32,
  16         .dram_ch1_base  = 0xc0000000,
  17         .dram_ch1_size  = 0x20000000,
  18         .dram_ch1_width = 16,
  19         .dram_ch2_base  = 0xc0000000,
  20         .dram_ch2_size  = 0x10000000,
  21         .dram_ch2_width = 16,
  22         .dram_freq      = 1600,
  23 };
  24 #endif
  25
  26 #if defined(CONFIG_ARCH_UNIPHIER_PH1_LD4)
  27 static const struct uniphier_board_data ph1_ld4_data = {
  28         .dram_ch0_base  = 0x80000000,
  29         .dram_ch0_size  = 0x10000000,
  30         .dram_ch0_width = 16,
  31         .dram_ch1_base  = 0x90000000,
  32         .dram_ch1_size  = 0x10000000,
  33         .dram_ch1_width = 16,
  34         .dram_freq      = 1600,
  35 };
  36 #endif
  37
  38 #if defined(CONFIG_ARCH_UNIPHIER_PH1_PRO4)
  39 static const struct uniphier_board_data ph1_pro4_data = {
  40         .dram_ch0_base  = 0x80000000,
  41         .dram_ch0_size  = 0x20000000,
  42         .dram_ch0_width = 32,
  43         .dram_ch1_base  = 0xa0000000,
  44         .dram_ch1_size  = 0x20000000,
  45         .dram_ch1_width = 32,
  46         .dram_freq      = 1600,
  47 };
  48 #endif
  49
  50 #if defined(CONFIG_ARCH_UNIPHIER_PH1_SLD8)
  51 static const struct uniphier_board_data ph1_sld8_data = {
  52         .dram_ch0_base  = 0x80000000,
  53         .dram_ch0_size  = 0x10000000,
  54         .dram_ch0_width = 16,
  55         .dram_ch1_base  = 0x90000000,
  56         .dram_ch1_size  = 0x10000000,
  57         .dram_ch1_width = 16,
  58         .dram_freq      = 1333,
  59 };
  60 #endif
  61
  62 struct uniphier_board_id {
  63         const char *compatible;
  64         const struct uniphier_board_data *param;
  65 };
  66
  67 static const struct uniphier_board_id uniphier_boards[] = {
  68 #if defined(CONFIG_ARCH_UNIPHIER_PH1_SLD3)
  69         { "socionext,ph1-sld3", &ph1_sld3_data, },
  70 #endif
  71 #if defined(CONFIG_ARCH_UNIPHIER_PH1_LD4)
  72         { "socionext,ph1-ld4", &ph1_ld4_data, },
  73 #endif
  74 #if defined(CONFIG_ARCH_UNIPHIER_PH1_PRO4)
  75         { "socionext,ph1-pro4", &ph1_pro4_data, },
  76 #endif
  77 #if defined(CONFIG_ARCH_UNIPHIER_PH1_SLD8)
  78         { "socionext,ph1-sld8", &ph1_sld8_data, },
  79 #endif
  80 };
  81
  82 const struct uniphier_board_data *uniphier_get_board_param(const void *fdt)
  83 {
  84         int i;
  85
  86         for (i = 0; i < ARRAY_SIZE(uniphier_boards); i++) {
  87                 if (!fdt_node_check_compatible(fdt, 0,
  88                                                uniphier_boards[i].compatible))
  89                         return uniphier_boards[i].param;
  90         }
  91
  92         return NULL;
  93 }