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/*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Joakim Axelsson <joakim.axelsson at stericsson.com>
* for ST-Ericsson
*
* Origin: Code split from board/st/u8500/u8500.c
*
* License terms: GNU General Public License (GPL), version 2.
*/
#ifndef __DB8500_CPU_H__
#define __DB8500_CPU_H__
#include <config.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#define CPUID_DB8500ED 0x410fc090
#define CPUID_DB8500V1 0x411fc091
#define CPUID_DB8500V2 0x412fc091
#define ASICID_DB8500V11 0x008500A1
/*
* Keep these CPU identity functions inline here because they are short
* and used by many. Will make for fast optimized compiled code.
*/
static inline unsigned int read_cpuid(void)
{
unsigned int val;
/* Main ID register (MIDR) */
asm("mrc p15, 0, %0, c0, c0, 0"
: "=r" (val)
:
: "cc");
return val;
}
static inline int u8500_is_snowball(void)
{
return 1;
}
#define HREF_PRINTF(fmt, args...) \
if (!u8500_is_snowball()) printf(fmt, ##args);
static inline int u8500_is_earlydrop(void)
{
return read_cpuid() == CPUID_DB8500ED;
}
static inline int cpu_is_u8500v1(void)
{
return read_cpuid() == CPUID_DB8500V1;
}
static inline int cpu_is_u8500v2(void)
{
return read_cpuid() == CPUID_DB8500V2;
}
static inline unsigned int read_asicid(void)
{
unsigned int *address;
if (u8500_is_earlydrop() || cpu_is_u8500v1())
address = (void *) U8500_ASIC_ID_LOC_ED_V1;
else
address = (void *) U8500_ASIC_ID_LOC_V2;
return readl(address);
}
static inline int cpu_is_u8500v11(void)
{
return read_asicid() == ASICID_DB8500V11;
}
#endif /* __DB8500_CPU_H__ */
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