// SPDX-License-Identifier: GPL-2.0-only
/*
 *
 *  Copyright (C) 2010 John Crispin <john@phrozen.org>
 *  Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
 */

#include <linux/export.h>
#include <linux/clk.h>
#include <asm/bootinfo.h>
#include <asm/time.h>

#include <lantiq_soc.h>

#include "../prom.h"

#define SOC_DANUBE      "Danube"
#define SOC_TWINPASS    "Twinpass"
#define SOC_AMAZON_SE   "Amazon_SE"
#define SOC_AR9         "AR9"
#define SOC_GR9         "GRX200"
#define SOC_VR9         "xRX200"
#define SOC_VRX220      "xRX220"
#define SOC_AR10        "xRX300"
#define SOC_GRX390      "xRX330"

#define COMP_DANUBE     "lantiq,danube"
#define COMP_TWINPASS   "lantiq,twinpass"
#define COMP_AMAZON_SE  "lantiq,ase"
#define COMP_AR9        "lantiq,ar9"
#define COMP_GR9        "lantiq,gr9"
#define COMP_VR9        "lantiq,vr9"
#define COMP_AR10       "lantiq,ar10"
#define COMP_GRX390     "lantiq,grx390"

#define PART_SHIFT      12
#define PART_MASK       0x0FFFFFFF
#define REV_SHIFT       28
#define REV_MASK        0xF0000000

void __init ltq_soc_detect(struct ltq_soc_info *i)
{
        i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
        i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
        sprintf(i->rev_type, "1.%d", i->rev);
        switch (i->partnum) {
        case SOC_ID_DANUBE1:
        case SOC_ID_DANUBE2:
                i->name = SOC_DANUBE;
                i->type = SOC_TYPE_DANUBE;
                i->compatible = COMP_DANUBE;
                break;

        case SOC_ID_TWINPASS:
                i->name = SOC_TWINPASS;
                i->type = SOC_TYPE_DANUBE;
                i->compatible = COMP_TWINPASS;
                break;

        case SOC_ID_ARX188:
        case SOC_ID_ARX168_1:
        case SOC_ID_ARX168_2:
        case SOC_ID_ARX182:
                i->name = SOC_AR9;
                i->type = SOC_TYPE_AR9;
                i->compatible = COMP_AR9;
                break;

        case SOC_ID_GRX188:
        case SOC_ID_GRX168:
                i->name = SOC_GR9;
                i->type = SOC_TYPE_AR9;
                i->compatible = COMP_GR9;
                break;

        case SOC_ID_AMAZON_SE_1:
        case SOC_ID_AMAZON_SE_2:
#ifdef CONFIG_PCI
                panic("ase is only supported for non pci kernels");
#endif
                i->name = SOC_AMAZON_SE;
                i->type = SOC_TYPE_AMAZON_SE;
                i->compatible = COMP_AMAZON_SE;
                break;

        case SOC_ID_VRX282:
        case SOC_ID_VRX268:
        case SOC_ID_VRX288:
                i->name = SOC_VR9;
                i->type = SOC_TYPE_VR9;
                i->compatible = COMP_VR9;
                break;

        case SOC_ID_GRX268:
        case SOC_ID_GRX288:
                i->name = SOC_GR9;
                i->type = SOC_TYPE_VR9;
                i->compatible = COMP_GR9;
                break;

        case SOC_ID_VRX268_2:
        case SOC_ID_VRX288_2:
                i->name = SOC_VR9;
                i->type = SOC_TYPE_VR9_2;
                i->compatible = COMP_VR9;
                break;

        case SOC_ID_VRX220:
                i->name = SOC_VRX220;
                i->type = SOC_TYPE_VRX220;
                i->compatible = COMP_VR9;
                break;

        case SOC_ID_GRX282_2:
        case SOC_ID_GRX288_2:
                i->name = SOC_GR9;
                i->type = SOC_TYPE_VR9_2;
                i->compatible = COMP_GR9;
                break;

        case SOC_ID_ARX362:
        case SOC_ID_ARX368:
        case SOC_ID_ARX382:
        case SOC_ID_ARX388:
        case SOC_ID_URX388:
                i->name = SOC_AR10;
                i->type = SOC_TYPE_AR10;
                i->compatible = COMP_AR10;
                break;

        case SOC_ID_GRX383:
        case SOC_ID_GRX369:
        case SOC_ID_GRX387:
        case SOC_ID_GRX389:
                i->name = SOC_GRX390;
                i->type = SOC_TYPE_GRX390;
                i->compatible = COMP_GRX390;
                break;

        default:
                unreachable();
                break;
        }
}