LXR linux/include/linux/soc/mmp/cputype.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_MACH_CPUTYPE_H
   3#define __ASM_MACH_CPUTYPE_H
   4
   5#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
   6#include <asm/cputype.h>
   7#endif
   8
   9/*
  10 *  CPU   Stepping   CPU_ID      CHIP_ID
  11 *
  12 * PXA168    S0    0x56158400   0x0000C910
  13 * PXA168    A0    0x56158400   0x00A0A168
  14 * PXA910    Y1    0x56158400   0x00F2C920
  15 * PXA910    A0    0x56158400   0x00F2C910
  16 * PXA910    A1    0x56158400   0x00A0C910
  17 * PXA920    Y0    0x56158400   0x00F2C920
  18 * PXA920    A0    0x56158400   0x00A0C920
  19 * PXA920    A1    0x56158400   0x00A1C920
  20 * MMP2      Z0    0x560f5811   0x00F00410
  21 * MMP2      Z1    0x560f5811   0x00E00410
  22 * MMP2      A0    0x560f5811   0x00A0A610
  23 * MMP3      A0    0x562f5842   0x00A02128
  24 * MMP3      B0    0x562f5842   0x00B02128
  25 */
  26
  27extern unsigned int mmp_chip_id;
  28
  29#ifdef CONFIG_CPU_PXA168
  30static inline int cpu_is_pxa168(void)
  31{
  32        return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
  33                ((mmp_chip_id & 0xfff) == 0x168);
  34}
  35#else
  36#define cpu_is_pxa168() (0)
  37#endif
  38
  39/* cpu_is_pxa910() is shared on both pxa910 and pxa920 */
  40#ifdef CONFIG_CPU_PXA910
  41static inline int cpu_is_pxa910(void)
  42{
  43        return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
  44                (((mmp_chip_id & 0xfff) == 0x910) ||
  45                 ((mmp_chip_id & 0xfff) == 0x920));
  46}
  47#else
  48#define cpu_is_pxa910() (0)
  49#endif
  50
  51#if defined(CONFIG_CPU_MMP2) || defined(CONFIG_MACH_MMP2_DT)
  52static inline int cpu_is_mmp2(void)
  53{
  54        return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
  55                (((mmp_chip_id & 0xfff) == 0x410) ||
  56                 ((mmp_chip_id & 0xfff) == 0x610));
  57}
  58#else
  59#define cpu_is_mmp2()   (0)
  60#endif
  61
  62#ifdef CONFIG_MACH_MMP3_DT
  63static inline int cpu_is_mmp3(void)
  64{
  65        return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
  66                ((mmp_chip_id & 0xffff) == 0x2128);
  67}
  68
  69static inline int cpu_is_mmp3_a0(void)
  70{
  71        return (cpu_is_mmp3() &&
  72                ((mmp_chip_id & 0x00ff0000) == 0x00a00000));
  73}
  74
  75static inline int cpu_is_mmp3_b0(void)
  76{
  77        return (cpu_is_mmp3() &&
  78                ((mmp_chip_id & 0x00ff0000) == 0x00b00000));
  79}
  80
  81#else
  82#define cpu_is_mmp3()           (0)
  83#define cpu_is_mmp3_a0()        (0)
  84#define cpu_is_mmp3_b0()        (0)
  85#endif
  86
  87#endif /* __ASM_MACH_CPUTYPE_H */
  88