arch/arm/mach-uniphier/soc_info.c

   1 /*
   2  * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <linux/io.h>
   8 #include <linux/types.h>
   9 #include <mach/sg-regs.h>
  10 #include <mach/soc_info.h>
  11
  12 #if UNIPHIER_MULTI_SOC
  13 enum uniphier_soc_id uniphier_get_soc_type(void)
  14 {
  15         u32 revision = readl(SG_REVISION);
  16         enum uniphier_soc_id ret;
  17
  18         switch ((revision & SG_REVISION_TYPE_MASK) >> SG_REVISION_TYPE_SHIFT) {
  19 #ifdef CONFIG_ARCH_UNIPHIER_PH1_SLD3
  20         case 0x25:
  21                 ret = SOC_UNIPHIER_PH1_SLD3;
  22                 break;
  23 #endif
  24 #ifdef CONFIG_ARCH_UNIPHIER_PH1_LD4
  25         case 0x26:
  26                 ret = SOC_UNIPHIER_PH1_LD4;
  27                 break;
  28 #endif
  29 #ifdef CONFIG_ARCH_UNIPHIER_PH1_PRO4
  30         case 0x28:
  31                 ret = SOC_UNIPHIER_PH1_PRO4;
  32                 break;
  33 #endif
  34 #ifdef CONFIG_ARCH_UNIPHIER_PH1_SLD8
  35         case 0x29:
  36                 ret = SOC_UNIPHIER_PH1_SLD8;
  37                 break;
  38 #endif
  39 #ifdef CONFIG_ARCH_UNIPHIER_PH1_PRO5
  40         case 0x2A:
  41                 ret = SOC_UNIPHIER_PH1_PRO5;
  42                 break;
  43 #endif
  44 #ifdef CONFIG_ARCH_UNIPHIER_PROXSTREAM2
  45         case 0x2E:
  46                 ret = SOC_UNIPHIER_PROXSTREAM2;
  47                 break;
  48 #endif
  49 #ifdef CONFIG_ARCH_UNIPHIER_PH1_LD6B
  50         case 0x2F:
  51                 ret = SOC_UNIPHIER_PH1_LD6B;
  52                 break;
  53 #endif
  54         default:
  55                 ret = SOC_UNIPHIER_UNKNOWN;
  56                 break;
  57         }
  58
  59         return ret;
  60 }
  61 #endif