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

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
   5  * License terms: GNU General Public License (GPL) version 2
   6  */
   7
   8 #ifndef __MACH_UX500_ID
   9 #define __MACH_UX500_ID
  10
  11 /**
  12  * struct dbx500_asic_id - fields of the ASIC ID
  13  * @process: the manufacturing process, 0x40 is 40 nm 0x00 is "standard"
  14  * @partnumber: hithereto 0x8500 for DB8500
  15  * @revision: version code in the series
  16  */
  17 struct dbx500_asic_id {
  18         u16     partnumber;
  19         u8      revision;
  20         u8      process;
  21 };
  22
  23 extern struct dbx500_asic_id dbx500_id;
  24
  25 static inline unsigned int __attribute_const__ dbx500_partnumber(void)
  26 {
  27         return dbx500_id.partnumber;
  28 }
  29
  30 static inline unsigned int __attribute_const__ dbx500_revision(void)
  31 {
  32         return dbx500_id.revision;
  33 }
  34
  35 /*
  36  * SOCs
  37  */
  38
  39 static inline bool __attribute_const__ cpu_is_u8500(void)
  40 {
  41         return dbx500_partnumber() == 0x8500;
  42 }
  43
  44 static inline bool __attribute_const__ cpu_is_u9540(void)
  45 {
  46         return dbx500_partnumber() == 0x9540;
  47 }
  48
  49 static inline bool cpu_is_u8500_family(void)
  50 {
  51         return cpu_is_u8500() || cpu_is_u9540();
  52 }
  53
  54 static inline bool __attribute_const__ cpu_is_u5500(void)
  55 {
  56         return dbx500_partnumber() == 0x5500;
  57 }
  58
  59 /*
  60  * 5500 revisions
  61  */
  62
  63 static inline bool __attribute_const__ cpu_is_u5500v1(void)
  64 {
  65         return cpu_is_u5500() && (dbx500_revision() & 0xf0) == 0xA0;
  66 }
  67
  68 static inline bool __attribute_const__ cpu_is_u5500v2(void)
  69 {
  70         return (dbx500_id.revision & 0xf0) == 0xB0;
  71 }
  72
  73 static inline bool __attribute_const__ cpu_is_u5500v20(void)
  74 {
  75         return cpu_is_u5500() && ((dbx500_revision() & 0xf0) == 0xB0);
  76 }
  77
  78 static inline bool __attribute_const__ cpu_is_u5500v21(void)
  79 {
  80         return cpu_is_u5500() && (dbx500_revision() == 0xB1);
  81 }
  82
  83 /*
  84  * 8500 revisions
  85  */
  86
  87 static inline bool __attribute_const__ cpu_is_u8500ed(void)
  88 {
  89         return cpu_is_u8500() && dbx500_revision() == 0x00;
  90 }
  91
  92 static inline bool __attribute_const__ cpu_is_u8500v1(void)
  93 {
  94         return cpu_is_u8500() && (dbx500_revision() & 0xf0) == 0xA0;
  95 }
  96
  97 static inline bool __attribute_const__ cpu_is_u8500v10(void)
  98 {
  99         return cpu_is_u8500() && dbx500_revision() == 0xA0;
 100 }
 101
 102 static inline bool __attribute_const__ cpu_is_u8500v11(void)
 103 {
 104         return cpu_is_u8500() && dbx500_revision() == 0xA1;
 105 }
 106
 107 static inline bool __attribute_const__ cpu_is_u8500v2(void)
 108 {
 109         return cpu_is_u8500() && ((dbx500_revision() & 0xf0) == 0xB0);
 110 }
 111
 112 static inline bool cpu_is_u8500v20(void)
 113 {
 114         return cpu_is_u8500() && (dbx500_revision() == 0xB0);
 115 }
 116
 117 static inline bool cpu_is_u8500v21(void)
 118 {
 119         return cpu_is_u8500() && (dbx500_revision() == 0xB1);
 120 }
 121
 122 static inline bool cpu_is_u8500v20_or_later(void)
 123 {
 124         /*
 125          * U9540 has so much in common with U8500 that is is considered a
 126          * U8500 variant.
 127          */
 128         return cpu_is_u9540() ||
 129                 (cpu_is_u8500() && !cpu_is_u8500v10() && !cpu_is_u8500v11());
 130 }
 131
 132 static inline bool ux500_is_svp(void)
 133 {
 134         return false;
 135 }
 136
 137 #define ux500_unknown_soc()     BUG()
 138
 139 #endif