arch/arm/mach-ep93xx/ts72xx.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * arch/arm/mach-ep93xx/include/mach/ts72xx.h
   4  */
   5
   6 /*
   7  * TS72xx memory map:
   8  *
   9  * virt         phys            size
  10  * febff000     22000000        4K      model number register (bits 0-2)
  11  * febfe000     22400000        4K      options register
  12  * febfd000     22800000        4K      options register #2
  13  */
  14
  15 #define TS72XX_MODEL_PHYS_BASE          0x22000000
  16 #define TS72XX_MODEL_VIRT_BASE          IOMEM(0xfebff000)
  17 #define TS72XX_MODEL_SIZE               0x00001000
  18
  19 #define TS72XX_MODEL_TS7200             0x00
  20 #define TS72XX_MODEL_TS7250             0x01
  21 #define TS72XX_MODEL_TS7260             0x02
  22 #define TS72XX_MODEL_TS7300             0x03
  23 #define TS72XX_MODEL_TS7400             0x04
  24 #define TS72XX_MODEL_MASK               0x07
  25
  26
  27 #define TS72XX_OPTIONS_PHYS_BASE        0x22400000
  28 #define TS72XX_OPTIONS_VIRT_BASE        IOMEM(0xfebfe000)
  29 #define TS72XX_OPTIONS_SIZE             0x00001000
  30
  31 #define TS72XX_OPTIONS_COM2_RS485       0x02
  32 #define TS72XX_OPTIONS_MAX197           0x01
  33
  34
  35 #define TS72XX_OPTIONS2_PHYS_BASE       0x22800000
  36 #define TS72XX_OPTIONS2_VIRT_BASE       IOMEM(0xfebfd000)
  37 #define TS72XX_OPTIONS2_SIZE            0x00001000
  38
  39 #define TS72XX_OPTIONS2_TS9420          0x04
  40 #define TS72XX_OPTIONS2_TS9420_BOOT     0x02
  41
  42 #ifndef __ASSEMBLY__
  43
  44 static inline int ts72xx_model(void)
  45 {
  46         return __raw_readb(TS72XX_MODEL_VIRT_BASE) & TS72XX_MODEL_MASK;
  47 }
  48
  49 static inline int board_is_ts7200(void)
  50 {
  51         return ts72xx_model() == TS72XX_MODEL_TS7200;
  52 }
  53
  54 static inline int board_is_ts7250(void)
  55 {
  56         return ts72xx_model() == TS72XX_MODEL_TS7250;
  57 }
  58
  59 static inline int board_is_ts7260(void)
  60 {
  61         return ts72xx_model() == TS72XX_MODEL_TS7260;
  62 }
  63
  64 static inline int board_is_ts7300(void)
  65 {
  66         return ts72xx_model()  == TS72XX_MODEL_TS7300;
  67 }
  68
  69 static inline int board_is_ts7400(void)
  70 {
  71         return ts72xx_model() == TS72XX_MODEL_TS7400;
  72 }
  73
  74 static inline int is_max197_installed(void)
  75 {
  76         return !!(__raw_readb(TS72XX_OPTIONS_VIRT_BASE) &
  77                                         TS72XX_OPTIONS_MAX197);
  78 }
  79
  80 static inline int is_ts9420_installed(void)
  81 {
  82         return !!(__raw_readb(TS72XX_OPTIONS2_VIRT_BASE) &
  83                                         TS72XX_OPTIONS2_TS9420);
  84 }
  85 #endif