lantiq/xway/prom.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  *
0004  *  Copyright (C) 2010 John Crispin <john@phrozen.org>
0005  *  Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
0006  */
0007
0008 #include <linux/export.h>
0009 #include <linux/clk.h>
0010 #include <asm/bootinfo.h>
0011 #include <asm/time.h>
0012
0013 #include <lantiq_soc.h>
0014
0015 #include "../prom.h"
0016
0017 #define SOC_DANUBE  "Danube"
0018 #define SOC_TWINPASS    "Twinpass"
0019 #define SOC_AMAZON_SE   "Amazon_SE"
0020 #define SOC_AR9     "AR9"
0021 #define SOC_GR9     "GRX200"
0022 #define SOC_VR9     "xRX200"
0023 #define SOC_VRX220  "xRX220"
0024 #define SOC_AR10    "xRX300"
0025 #define SOC_GRX390  "xRX330"
0026
0027 #define COMP_DANUBE "lantiq,danube"
0028 #define COMP_TWINPASS   "lantiq,twinpass"
0029 #define COMP_AMAZON_SE  "lantiq,ase"
0030 #define COMP_AR9    "lantiq,ar9"
0031 #define COMP_GR9    "lantiq,gr9"
0032 #define COMP_VR9    "lantiq,vr9"
0033 #define COMP_AR10   "lantiq,ar10"
0034 #define COMP_GRX390 "lantiq,grx390"
0035
0036 #define PART_SHIFT  12
0037 #define PART_MASK   0x0FFFFFFF
0038 #define REV_SHIFT   28
0039 #define REV_MASK    0xF0000000
0040
0041 void __init ltq_soc_detect(struct ltq_soc_info *i)
0042 {
0043     i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
0044     i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
0045     sprintf(i->rev_type, "1.%d", i->rev);
0046     switch (i->partnum) {
0047     case SOC_ID_DANUBE1:
0048     case SOC_ID_DANUBE2:
0049         i->name = SOC_DANUBE;
0050         i->type = SOC_TYPE_DANUBE;
0051         i->compatible = COMP_DANUBE;
0052         break;
0053
0054     case SOC_ID_TWINPASS:
0055         i->name = SOC_TWINPASS;
0056         i->type = SOC_TYPE_DANUBE;
0057         i->compatible = COMP_TWINPASS;
0058         break;
0059
0060     case SOC_ID_ARX188:
0061     case SOC_ID_ARX168_1:
0062     case SOC_ID_ARX168_2:
0063     case SOC_ID_ARX182:
0064         i->name = SOC_AR9;
0065         i->type = SOC_TYPE_AR9;
0066         i->compatible = COMP_AR9;
0067         break;
0068
0069     case SOC_ID_GRX188:
0070     case SOC_ID_GRX168:
0071         i->name = SOC_GR9;
0072         i->type = SOC_TYPE_AR9;
0073         i->compatible = COMP_GR9;
0074         break;
0075
0076     case SOC_ID_AMAZON_SE_1:
0077     case SOC_ID_AMAZON_SE_2:
0078 #ifdef CONFIG_PCI
0079         panic("ase is only supported for non pci kernels");
0080 #endif
0081         i->name = SOC_AMAZON_SE;
0082         i->type = SOC_TYPE_AMAZON_SE;
0083         i->compatible = COMP_AMAZON_SE;
0084         break;
0085
0086     case SOC_ID_VRX282:
0087     case SOC_ID_VRX268:
0088     case SOC_ID_VRX288:
0089         i->name = SOC_VR9;
0090         i->type = SOC_TYPE_VR9;
0091         i->compatible = COMP_VR9;
0092         break;
0093
0094     case SOC_ID_GRX268:
0095     case SOC_ID_GRX288:
0096         i->name = SOC_GR9;
0097         i->type = SOC_TYPE_VR9;
0098         i->compatible = COMP_GR9;
0099         break;
0100
0101     case SOC_ID_VRX268_2:
0102     case SOC_ID_VRX288_2:
0103         i->name = SOC_VR9;
0104         i->type = SOC_TYPE_VR9_2;
0105         i->compatible = COMP_VR9;
0106         break;
0107
0108     case SOC_ID_VRX220:
0109         i->name = SOC_VRX220;
0110         i->type = SOC_TYPE_VRX220;
0111         i->compatible = COMP_VR9;
0112         break;
0113
0114     case SOC_ID_GRX282_2:
0115     case SOC_ID_GRX288_2:
0116         i->name = SOC_GR9;
0117         i->type = SOC_TYPE_VR9_2;
0118         i->compatible = COMP_GR9;
0119         break;
0120
0121     case SOC_ID_ARX362:
0122     case SOC_ID_ARX368:
0123     case SOC_ID_ARX382:
0124     case SOC_ID_ARX388:
0125     case SOC_ID_URX388:
0126         i->name = SOC_AR10;
0127         i->type = SOC_TYPE_AR10;
0128         i->compatible = COMP_AR10;
0129         break;
0130
0131     case SOC_ID_GRX383:
0132     case SOC_ID_GRX369:
0133     case SOC_ID_GRX387:
0134     case SOC_ID_GRX389:
0135         i->name = SOC_GRX390;
0136         i->type = SOC_TYPE_GRX390;
0137         i->compatible = COMP_GRX390;
0138         break;
0139
0140     default:
0141         unreachable();
0142         break;
0143     }
0144 }