LXR linux/arch/arm/mach-mmp/cputype.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_MACH_CPUTYPE_H
   3#define __ASM_MACH_CPUTYPE_H
   4
   5#include <asm/cputype.h>
   6
   7/*
   8 *  CPU   Stepping   CPU_ID      CHIP_ID
   9 *
  10 * PXA168    S0    0x56158400   0x0000C910
  11 * PXA168    A0    0x56158400   0x00A0A168
  12 * PXA910    Y1    0x56158400   0x00F2C920
  13 * PXA910    A0    0x56158400   0x00F2C910
  14 * PXA910    A1    0x56158400   0x00A0C910
  15 * PXA920    Y0    0x56158400   0x00F2C920
  16 * PXA920    A0    0x56158400   0x00A0C920
  17 * PXA920    A1    0x56158400   0x00A1C920
  18 * MMP2      Z0    0x560f5811   0x00F00410
  19 * MMP2      Z1    0x560f5811   0x00E00410
  20 * MMP2      A0    0x560f5811   0x00A0A610
  21 */
  22
  23extern unsigned int mmp_chip_id;
  24
  25#ifdef CONFIG_CPU_PXA168
  26static inline int cpu_is_pxa168(void)
  27{
  28        return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
  29                ((mmp_chip_id & 0xfff) == 0x168);
  30}
  31#else
  32#define cpu_is_pxa168() (0)
  33#endif
  34
  35/* cpu_is_pxa910() is shared on both pxa910 and pxa920 */
  36#ifdef CONFIG_CPU_PXA910
  37static inline int cpu_is_pxa910(void)
  38{
  39        return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
  40                (((mmp_chip_id & 0xfff) == 0x910) ||
  41                 ((mmp_chip_id & 0xfff) == 0x920));
  42}
  43#else
  44#define cpu_is_pxa910() (0)
  45#endif
  46
  47#if defined(CONFIG_CPU_MMP2) || defined(CONFIG_MACH_MMP2_DT)
  48static inline int cpu_is_mmp2(void)
  49{
  50        return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
  51                (((mmp_chip_id & 0xfff) == 0x410) ||
  52                 ((mmp_chip_id & 0xfff) == 0x610));
  53}
  54#else
  55#define cpu_is_mmp2()   (0)
  56#endif
  57
  58#endif /* __ASM_MACH_CPUTYPE_H */
  59