/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * OMAP cpu type detection
 *
 * Copyright (C) 2004, 2008 Nokia Corporation
 *
 * Copyright (C) 2009-11 Texas Instruments.
 *
 * Written by Tony Lindgren <tony.lindgren@nokia.com>
 *
 * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
 */

#ifndef __ASM_ARCH_OMAP_CPU_H
#define __ASM_ARCH_OMAP_CPU_H

/*
 * Test if multicore OMAP support is needed
 */
#undef MULTI_OMAP1
#undef OMAP_NAME

#ifdef CONFIG_ARCH_OMAP15XX
# ifdef OMAP_NAME
#  undef  MULTI_OMAP1
#  define MULTI_OMAP1
# else
#  define OMAP_NAME omap1510
# endif
#endif
#ifdef CONFIG_ARCH_OMAP16XX
# ifdef OMAP_NAME
#  undef  MULTI_OMAP1
#  define MULTI_OMAP1
# else
#  define OMAP_NAME omap16xx
# endif
#endif

/*
 * omap_rev bits:
 * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
 * CPU revision (See _REV_ defined in cpu.h)    [15:08]
 * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
 */
unsigned int omap_rev(void);

/*
 * Get the CPU revision for OMAP devices
 */
#define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)

/*
 * Macros to group OMAP into cpu classes.
 * These can be used in most places.
 * cpu_is_omap15xx():   True for OMAP1510, OMAP5910 and OMAP310
 * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
 */
#define GET_OMAP_CLASS  (omap_rev() & 0xff)

#define IS_OMAP_CLASS(class, id)                        \
static inline int is_omap ##class (void)                \
{                                                       \
        return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
}

#define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)

#define IS_OMAP_SUBCLASS(subclass, id)                  \
static inline int is_omap ##subclass (void)             \
{                                                       \
        return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
}

IS_OMAP_CLASS(15xx, 0x15)
IS_OMAP_CLASS(16xx, 0x16)

#define cpu_is_omap15xx()               0
#define cpu_is_omap16xx()               0

#if defined(MULTI_OMAP1)
# if defined(CONFIG_ARCH_OMAP15XX)
#  undef  cpu_is_omap15xx
#  define cpu_is_omap15xx()             is_omap15xx()
# endif
# if defined(CONFIG_ARCH_OMAP16XX)
#  undef  cpu_is_omap16xx
#  define cpu_is_omap16xx()             is_omap16xx()
# endif
#else
# if defined(CONFIG_ARCH_OMAP15XX)
#  undef  cpu_is_omap15xx
#  define cpu_is_omap15xx()             1
# endif
# if defined(CONFIG_ARCH_OMAP16XX)
#  undef  cpu_is_omap16xx
#  define cpu_is_omap16xx()             1
# endif
#endif

/*
 * Macros to detect individual cpu types.
 * These are only rarely needed.
 * cpu_is_omap310():    True for OMAP310
 * cpu_is_omap1510():   True for OMAP1510
 * cpu_is_omap1610():   True for OMAP1610
 * cpu_is_omap1611():   True for OMAP1611
 * cpu_is_omap5912():   True for OMAP5912
 * cpu_is_omap1621():   True for OMAP1621
 * cpu_is_omap1710():   True for OMAP1710
 */
#define GET_OMAP_TYPE   ((omap_rev() >> 16) & 0xffff)

#define IS_OMAP_TYPE(type, id)                          \
static inline int is_omap ##type (void)                 \
{                                                       \
        return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
}

IS_OMAP_TYPE(310, 0x0310)
IS_OMAP_TYPE(1510, 0x1510)
IS_OMAP_TYPE(1610, 0x1610)
IS_OMAP_TYPE(1611, 0x1611)
IS_OMAP_TYPE(5912, 0x1611)
IS_OMAP_TYPE(1621, 0x1621)
IS_OMAP_TYPE(1710, 0x1710)

#define cpu_is_omap310()                0
#define cpu_is_omap1510()               0
#define cpu_is_omap1610()               0
#define cpu_is_omap5912()               0
#define cpu_is_omap1611()               0
#define cpu_is_omap1621()               0
#define cpu_is_omap1710()               0

#define cpu_class_is_omap1()            1

/*
 * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 * between 310 vs. 1510 and 1611B/5912 vs. 1710.
 */

#if defined(CONFIG_ARCH_OMAP15XX)
# undef  cpu_is_omap310
# undef  cpu_is_omap1510
# define cpu_is_omap310()               is_omap310()
# define cpu_is_omap1510()              is_omap1510()
#endif

#if defined(CONFIG_ARCH_OMAP16XX)
# undef  cpu_is_omap1610
# undef  cpu_is_omap1611
# undef  cpu_is_omap5912
# undef  cpu_is_omap1621
# undef  cpu_is_omap1710
# define cpu_is_omap1610()              is_omap1610()
# define cpu_is_omap1611()              is_omap1611()
# define cpu_is_omap5912()              is_omap5912()
# define cpu_is_omap1621()              is_omap1621()
# define cpu_is_omap1710()              is_omap1710()
#endif

#endif