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
  10 #include "sg-regs.h"
  11 #include "soc-info.h"
  12
  13 #if UNIPHIER_MULTI_SOC
  14 enum uniphier_soc_id uniphier_get_soc_type(void)
  15 {
  16         u32 revision = readl(SG_REVISION);
  17         enum uniphier_soc_id ret;
  18
  19         switch ((revision & SG_REVISION_TYPE_MASK) >> SG_REVISION_TYPE_SHIFT) {
  20 #ifdef CONFIG_ARCH_UNIPHIER_PH1_SLD3
  21         case 0x25:
  22                 ret = SOC_UNIPHIER_PH1_SLD3;
  23                 break;
  24 #endif
  25 #ifdef CONFIG_ARCH_UNIPHIER_PH1_LD4
  26         case 0x26:
  27                 ret = SOC_UNIPHIER_PH1_LD4;
  28                 break;
  29 #endif
  30 #ifdef CONFIG_ARCH_UNIPHIER_PH1_PRO4
  31         case 0x28:
  32                 ret = SOC_UNIPHIER_PH1_PRO4;
  33                 break;
  34 #endif
  35 #ifdef CONFIG_ARCH_UNIPHIER_PH1_SLD8
  36         case 0x29:
  37                 ret = SOC_UNIPHIER_PH1_SLD8;
  38                 break;
  39 #endif
  40 #ifdef CONFIG_ARCH_UNIPHIER_PH1_PRO5
  41         case 0x2A:
  42                 ret = SOC_UNIPHIER_PH1_PRO5;
  43                 break;
  44 #endif
  45 #ifdef CONFIG_ARCH_UNIPHIER_PROXSTREAM2
  46         case 0x2E:
  47                 ret = SOC_UNIPHIER_PROXSTREAM2;
  48                 break;
  49 #endif
  50 #ifdef CONFIG_ARCH_UNIPHIER_PH1_LD6B
  51         case 0x2F:
  52                 ret = SOC_UNIPHIER_PH1_LD6B;
  53                 break;
  54 #endif
  55 #ifdef CONFIG_ARCH_UNIPHIER_PH1_LD11
  56         case 0x31:
  57                 ret = SOC_UNIPHIER_PH1_LD11;
  58                 break;
  59 #endif
  60 #ifdef CONFIG_ARCH_UNIPHIER_PH1_LD20
  61         case 0x32:
  62                 ret = SOC_UNIPHIER_PH1_LD20;
  63                 break;
  64 #endif
  65         default:
  66                 ret = SOC_UNIPHIER_UNKNOWN;
  67                 break;
  68         }
  69
  70         return ret;
  71 }
  72 #endif
  73
  74 int uniphier_get_soc_model(void)
  75 {
  76         return (readl(SG_REVISION) & SG_REVISION_MODEL_MASK) >>
  77                                                 SG_REVISION_MODEL_SHIFT;
  78 }
  79
  80 int uniphier_get_soc_revision(void)
  81 {
  82         return (readl(SG_REVISION) & SG_REVISION_REV_MASK) >>
  83                                                 SG_REVISION_REV_SHIFT;
  84 }