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/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2011 Thomas Langer <thomas.langer@lantiq.com>
* Copyright (C) 2011 John Crispin <blogic@openwrt.org>
*/
#include <lantiq_soc.h>
#include "devices.h"
#include "../prom.h"
#define SOC_FALCON "Falcon"
#define SOC_FALCON_D "Falcon-D"
#define SOC_FALCON_V "Falcon-V"
#define SOC_FALCON_M "Falcon-M"
#define PART_SHIFT 12
#define PART_MASK 0x0FFFF000
#define REV_SHIFT 28
#define REV_MASK 0xF0000000
#define SREV_SHIFT 22
#define SREV_MASK 0x03C00000
#define TYPE_SHIFT 26
#define TYPE_MASK 0x3C000000
/* this parameter allows us enable/disable asc1 via commandline */
static int register_asc1;
static int __init
ltq_parse_asc1(char *p)
{
register_asc1 = 1;
return 0;
}
__setup("use_asc1", ltq_parse_asc1);
void __init
ltq_soc_setup(void)
{
ltq_register_asc(0);
ltq_register_wdt();
falcon_register_gpio();
if (register_asc1)
ltq_register_asc(1);
}
void __init
ltq_soc_detect(struct ltq_soc_info *i)
{
u32 type;
i->partnum = (ltq_r32(LTQ_FALCON_CHIPID) & PART_MASK) >> PART_SHIFT;
i->rev = (ltq_r32(LTQ_FALCON_CHIPID) & REV_MASK) >> REV_SHIFT;
i->srev = ((ltq_r32(LTQ_FALCON_CHIPCONF) & SREV_MASK) >> SREV_SHIFT);
sprintf(i->rev_type, "%c%d%d", (i->srev & 0x4) ? ('B') : ('A'),
i->rev & 0x7, (i->srev & 0x3) + 1);
switch (i->partnum) {
case SOC_ID_FALCON:
type = (ltq_r32(LTQ_FALCON_CHIPTYPE) & TYPE_MASK) >> TYPE_SHIFT;
switch (type) {
case 0:
i->name = SOC_FALCON_D;
break;
case 1:
i->name = SOC_FALCON_V;
break;
case 2:
i->name = SOC_FALCON_M;
break;
default:
i->name = SOC_FALCON;
break;
}
i->type = SOC_TYPE_FALCON;
break;
default:
unreachable();
break;
}
}
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