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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/lantiq/xway/prom-xway.c
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/*

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 *  This program is free software; you can redistribute it and/or modify it

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 *  under the terms of the GNU General Public License version 2 as published

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 *  by the Free Software Foundation.

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 *

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 *  Copyright (C) 2010 John Crispin <[email protected]>

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 */

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#include <linux/module.h>

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#include <linux/clk.h>

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#include <asm/bootinfo.h>

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#include <asm/time.h>

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#include <lantiq_soc.h>

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#include "../prom.h"

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#define SOC_DANUBE	"Danube"

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#define SOC_TWINPASS	"Twinpass"

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#define SOC_AR9		"AR9"

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#define PART_SHIFT	12

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#define PART_MASK	0x0FFFFFFF

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#define REV_SHIFT	28

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#define REV_MASK	0xF0000000

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void __init ltq_soc_detect(struct ltq_soc_info *i)

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{

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	i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;

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	i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;

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	switch (i->partnum) {

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	case SOC_ID_DANUBE1:

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	case SOC_ID_DANUBE2:

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		i->name = SOC_DANUBE;

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		i->type = SOC_TYPE_DANUBE;

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		break;

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	case SOC_ID_TWINPASS:

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		i->name = SOC_TWINPASS;

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		i->type = SOC_TYPE_DANUBE;

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		break;

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	case SOC_ID_ARX188:

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	case SOC_ID_ARX168:

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	case SOC_ID_ARX182:

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		i->name = SOC_AR9;

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		i->type = SOC_TYPE_AR9;

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		break;

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	default:

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		unreachable();

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		break;

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	}

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}

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