linux/arch/arm/mach-ux500/include/mach/id.h

/*
 * Copyright (C) ST-Ericsson SA 2010
 *
 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
 * License terms: GNU General Public License (GPL) version 2
 */

#ifndef __MACH_UX500_ID
#define __MACH_UX500_ID

/**
 * struct dbx500_asic_id - fields of the ASIC ID
 * @process: the manufacturing process, 0x40 is 40 nm 0x00 is "standard"
 * @partnumber: hithereto 0x8500 for DB8500
 * @revision: version code in the series
 */
struct dbx500_asic_id {
	u16	partnumber;
	u8	revision;
	u8	process;
};

extern struct dbx500_asic_id dbx500_id;

static inline unsigned int __attribute_const__ dbx500_partnumber(void)
{
	return dbx500_id.partnumber;
}

static inline unsigned int __attribute_const__ dbx500_revision(void)
{
	return dbx500_id.revision;
}

/*
 * SOCs
 */

static inline bool __attribute_const__ cpu_is_u8500(void)
{
	return dbx500_partnumber() == 0x8500;
}

static inline bool __attribute_const__ cpu_is_u9540(void)
{
	return dbx500_partnumber() == 0x9540;
}

static inline bool cpu_is_u8500_family(void)
{
	return cpu_is_u8500() || cpu_is_u9540();
}

/*
 * 8500 revisions
 */

static inline bool __attribute_const__ cpu_is_u8500ed(void)
{
	return cpu_is_u8500() && dbx500_revision() == 0x00;
}

static inline bool __attribute_const__ cpu_is_u8500v1(void)
{
	return cpu_is_u8500() && (dbx500_revision() & 0xf0) == 0xA0;
}

static inline bool __attribute_const__ cpu_is_u8500v10(void)
{
	return cpu_is_u8500() && dbx500_revision() == 0xA0;
}

static inline bool __attribute_const__ cpu_is_u8500v11(void)
{
	return cpu_is_u8500() && dbx500_revision() == 0xA1;
}

static inline bool __attribute_const__ cpu_is_u8500v2(void)
{
	return cpu_is_u8500() && ((dbx500_revision() & 0xf0) == 0xB0);
}

static inline bool cpu_is_u8500v20(void)
{
	return cpu_is_u8500() && (dbx500_revision() == 0xB0);
}

static inline bool cpu_is_u8500v21(void)
{
	return cpu_is_u8500() && (dbx500_revision() == 0xB1);
}

static inline bool cpu_is_u8500v20_or_later(void)
{
	/*
	 * U9540 has so much in common with U8500 that is is considered a
	 * U8500 variant.
	 */
	return cpu_is_u9540() ||
		(cpu_is_u8500() && !cpu_is_u8500v10() && !cpu_is_u8500v11());
}

static inline bool ux500_is_svp(void)
{
	return false;
}

#define ux500_unknown_soc()	BUG()

#endif