arch/mips/lantiq/xway/prom.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *
   4  *  Copyright (C) 2010 John Crispin <john@phrozen.org>
   5  *  Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
   6  */
   7
   8 #include <linux/export.h>
   9 #include <linux/clk.h>
  10 #include <asm/bootinfo.h>
  11 #include <asm/time.h>
  12
  13 #include <lantiq_soc.h>
  14
  15 #include "../prom.h"
  16
  17 #define SOC_DANUBE      "Danube"
  18 #define SOC_TWINPASS    "Twinpass"
  19 #define SOC_AMAZON_SE   "Amazon_SE"
  20 #define SOC_AR9         "AR9"
  21 #define SOC_GR9         "GRX200"
  22 #define SOC_VR9         "xRX200"
  23 #define SOC_VRX220      "xRX220"
  24 #define SOC_AR10        "xRX300"
  25 #define SOC_GRX390      "xRX330"
  26
  27 #define COMP_DANUBE     "lantiq,danube"
  28 #define COMP_TWINPASS   "lantiq,twinpass"
  29 #define COMP_AMAZON_SE  "lantiq,ase"
  30 #define COMP_AR9        "lantiq,ar9"
  31 #define COMP_GR9        "lantiq,gr9"
  32 #define COMP_VR9        "lantiq,vr9"
  33 #define COMP_AR10       "lantiq,ar10"
  34 #define COMP_GRX390     "lantiq,grx390"
  35
  36 #define PART_SHIFT      12
  37 #define PART_MASK       0x0FFFFFFF
  38 #define REV_SHIFT       28
  39 #define REV_MASK        0xF0000000
  40
  41 void __init ltq_soc_detect(struct ltq_soc_info *i)
  42 {
  43         i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
  44         i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
  45         sprintf(i->rev_type, "1.%d", i->rev);
  46         switch (i->partnum) {
  47         case SOC_ID_DANUBE1:
  48         case SOC_ID_DANUBE2:
  49                 i->name = SOC_DANUBE;
  50                 i->type = SOC_TYPE_DANUBE;
  51                 i->compatible = COMP_DANUBE;
  52                 break;
  53
  54         case SOC_ID_TWINPASS:
  55                 i->name = SOC_TWINPASS;
  56                 i->type = SOC_TYPE_DANUBE;
  57                 i->compatible = COMP_TWINPASS;
  58                 break;
  59
  60         case SOC_ID_ARX188:
  61         case SOC_ID_ARX168_1:
  62         case SOC_ID_ARX168_2:
  63         case SOC_ID_ARX182:
  64                 i->name = SOC_AR9;
  65                 i->type = SOC_TYPE_AR9;
  66                 i->compatible = COMP_AR9;
  67                 break;
  68
  69         case SOC_ID_GRX188:
  70         case SOC_ID_GRX168:
  71                 i->name = SOC_GR9;
  72                 i->type = SOC_TYPE_AR9;
  73                 i->compatible = COMP_GR9;
  74                 break;
  75
  76         case SOC_ID_AMAZON_SE_1:
  77         case SOC_ID_AMAZON_SE_2:
  78 #ifdef CONFIG_PCI
  79                 panic("ase is only supported for non pci kernels");
  80 #endif
  81                 i->name = SOC_AMAZON_SE;
  82                 i->type = SOC_TYPE_AMAZON_SE;
  83                 i->compatible = COMP_AMAZON_SE;
  84                 break;
  85
  86         case SOC_ID_VRX282:
  87         case SOC_ID_VRX268:
  88         case SOC_ID_VRX288:
  89                 i->name = SOC_VR9;
  90                 i->type = SOC_TYPE_VR9;
  91                 i->compatible = COMP_VR9;
  92                 break;
  93
  94         case SOC_ID_GRX268:
  95         case SOC_ID_GRX288:
  96                 i->name = SOC_GR9;
  97                 i->type = SOC_TYPE_VR9;
  98                 i->compatible = COMP_GR9;
  99                 break;
 100
 101         case SOC_ID_VRX268_2:
 102         case SOC_ID_VRX288_2:
 103                 i->name = SOC_VR9;
 104                 i->type = SOC_TYPE_VR9_2;
 105                 i->compatible = COMP_VR9;
 106                 break;
 107
 108         case SOC_ID_VRX220:
 109                 i->name = SOC_VRX220;
 110                 i->type = SOC_TYPE_VRX220;
 111                 i->compatible = COMP_VR9;
 112                 break;
 113
 114         case SOC_ID_GRX282_2:
 115         case SOC_ID_GRX288_2:
 116                 i->name = SOC_GR9;
 117                 i->type = SOC_TYPE_VR9_2;
 118                 i->compatible = COMP_GR9;
 119                 break;
 120
 121         case SOC_ID_ARX362:
 122         case SOC_ID_ARX368:
 123         case SOC_ID_ARX382:
 124         case SOC_ID_ARX388:
 125         case SOC_ID_URX388:
 126                 i->name = SOC_AR10;
 127                 i->type = SOC_TYPE_AR10;
 128                 i->compatible = COMP_AR10;
 129                 break;
 130
 131         case SOC_ID_GRX383:
 132         case SOC_ID_GRX369:
 133         case SOC_ID_GRX387:
 134         case SOC_ID_GRX389:
 135                 i->name = SOC_GRX390;
 136                 i->type = SOC_TYPE_GRX390;
 137                 i->compatible = COMP_GRX390;
 138                 break;
 139
 140         default:
 141                 unreachable();
 142                 break;
 143         }
 144 }