arch/arm/mach-pxa/include/mach/hardware.h

   1 /*
   2  *  arch/arm/mach-pxa/include/mach/hardware.h
   3  *
   4  *  Author:     Nicolas Pitre
   5  *  Created:    Jun 15, 2001
   6  *  Copyright:  MontaVista Software Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #ifndef __ASM_ARCH_HARDWARE_H
  14 #define __ASM_ARCH_HARDWARE_H
  15
  16 #include <mach/addr-map.h>
  17
  18 /*
  19  * Workarounds for at least 2 errata so far require this.
  20  * The mapping is set in mach-pxa/generic.c.
  21  */
  22 #define UNCACHED_PHYS_0         0xff000000
  23 #define UNCACHED_PHYS_0_SIZE    0x00100000
  24
  25 /*
  26  * Intel PXA2xx internal register mapping:
  27  *
  28  * 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff
  29  * 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff
  30  * 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff
  31  * 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff
  32  * 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff
  33  * 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff
  34  * 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff
  35  *
  36  * Note that not all PXA2xx chips implement all those addresses, and the
  37  * kernel only maps the minimum needed range of this mapping.
  38  */
  39 #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
  40 #define io_p2v(x) IOMEM(0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
  41
  42 #ifndef __ASSEMBLY__
  43 # define __REG(x)       (*((volatile u32 __iomem *)io_p2v(x)))
  44
  45 /* With indexed regs we don't want to feed the index through io_p2v()
  46    especially if it is a variable, otherwise horrible code will result. */
  47 # define __REG2(x,y)    \
  48         (*(volatile u32 __iomem*)((u32)&__REG(x) + (y)))
  49
  50 # define __PREG(x)      (io_v2p((u32)&(x)))
  51
  52 #else
  53
  54 # define __REG(x)       io_p2v(x)
  55 # define __PREG(x)      io_v2p(x)
  56
  57 #endif
  58
  59 #ifndef __ASSEMBLY__
  60
  61 #include <asm/cputype.h>
  62
  63 /*
  64  *   CPU     Stepping     CPU_ID         JTAG_ID
  65  *
  66  *  PXA210      B0      0x69052922      0x2926C013
  67  *  PXA210      B1      0x69052923      0x3926C013
  68  *  PXA210      B2      0x69052924      0x4926C013
  69  *  PXA210      C0      0x69052D25      0x5926C013
  70  *
  71  *  PXA250      A0      0x69052100      0x09264013
  72  *  PXA250      A1      0x69052101      0x19264013
  73  *  PXA250      B0      0x69052902      0x29264013
  74  *  PXA250      B1      0x69052903      0x39264013
  75  *  PXA250      B2      0x69052904      0x49264013
  76  *  PXA250      C0      0x69052D05      0x59264013
  77  *
  78  *  PXA255      A0      0x69052D06      0x69264013
  79  *
  80  *  PXA26x      A0      0x69052903      0x39264013
  81  *  PXA26x      B0      0x69052D05      0x59264013
  82  *
  83  *  PXA27x      A0      0x69054110      0x09265013
  84  *  PXA27x      A1      0x69054111      0x19265013
  85  *  PXA27x      B0      0x69054112      0x29265013
  86  *  PXA27x      B1      0x69054113      0x39265013
  87  *  PXA27x      C0      0x69054114      0x49265013
  88  *  PXA27x      C5      0x69054117      0x79265013
  89  *
  90  *  PXA30x      A0      0x69056880      0x0E648013
  91  *  PXA30x      A1      0x69056881      0x1E648013
  92  *  PXA31x      A0      0x69056890      0x0E649013
  93  *  PXA31x      A1      0x69056891      0x1E649013
  94  *  PXA31x      A2      0x69056892      0x2E649013
  95  *  PXA32x      B1      0x69056825      0x5E642013
  96  *  PXA32x      B2      0x69056826      0x6E642013
  97  *
  98  *  PXA930      B0      0x69056835      0x5E643013
  99  *  PXA930      B1      0x69056837      0x7E643013
 100  *  PXA930      B2      0x69056838      0x8E643013
 101  *
 102  *  PXA935      A0      0x56056931      0x1E653013
 103  *  PXA935      B0      0x56056936      0x6E653013
 104  *  PXA935      B1      0x56056938      0x8E653013
 105  */
 106 #ifdef CONFIG_PXA25x
 107 #define __cpu_is_pxa210(id)                             \
 108         ({                                              \
 109                 unsigned int _id = (id) & 0xf3f0;       \
 110                 _id == 0x2120;                          \
 111         })
 112
 113 #define __cpu_is_pxa250(id)                             \
 114         ({                                              \
 115                 unsigned int _id = (id) & 0xf3ff;       \
 116                 _id <= 0x2105;                          \
 117         })
 118
 119 #define __cpu_is_pxa255(id)                             \
 120         ({                                              \
 121                 unsigned int _id = (id) & 0xffff;       \
 122                 _id == 0x2d06;                          \
 123         })
 124
 125 #define __cpu_is_pxa25x(id)                             \
 126         ({                                              \
 127                 unsigned int _id = (id) & 0xf300;       \
 128                 _id == 0x2100;                          \
 129         })
 130 #else
 131 #define __cpu_is_pxa210(id)     (0)
 132 #define __cpu_is_pxa250(id)     (0)
 133 #define __cpu_is_pxa255(id)     (0)
 134 #define __cpu_is_pxa25x(id)     (0)
 135 #endif
 136
 137 #ifdef CONFIG_PXA27x
 138 #define __cpu_is_pxa27x(id)                             \
 139         ({                                              \
 140                 unsigned int _id = (id) >> 4 & 0xfff;   \
 141                 _id == 0x411;                           \
 142         })
 143 #else
 144 #define __cpu_is_pxa27x(id)     (0)
 145 #endif
 146
 147 #ifdef CONFIG_CPU_PXA300
 148 #define __cpu_is_pxa300(id)                             \
 149         ({                                              \
 150                 unsigned int _id = (id) >> 4 & 0xfff;   \
 151                 _id == 0x688;                           \
 152          })
 153 #else
 154 #define __cpu_is_pxa300(id)     (0)
 155 #endif
 156
 157 #ifdef CONFIG_CPU_PXA310
 158 #define __cpu_is_pxa310(id)                             \
 159         ({                                              \
 160                 unsigned int _id = (id) >> 4 & 0xfff;   \
 161                 _id == 0x689;                           \
 162          })
 163 #else
 164 #define __cpu_is_pxa310(id)     (0)
 165 #endif
 166
 167 #ifdef CONFIG_CPU_PXA320
 168 #define __cpu_is_pxa320(id)                             \
 169         ({                                              \
 170                 unsigned int _id = (id) >> 4 & 0xfff;   \
 171                 _id == 0x603 || _id == 0x682;           \
 172          })
 173 #else
 174 #define __cpu_is_pxa320(id)     (0)
 175 #endif
 176
 177 #ifdef CONFIG_CPU_PXA930
 178 #define __cpu_is_pxa930(id)                             \
 179         ({                                              \
 180                 unsigned int _id = (id) >> 4 & 0xfff;   \
 181                 _id == 0x683;                           \
 182          })
 183 #else
 184 #define __cpu_is_pxa930(id)     (0)
 185 #endif
 186
 187 #ifdef CONFIG_CPU_PXA935
 188 #define __cpu_is_pxa935(id)                             \
 189         ({                                              \
 190                 unsigned int _id = (id) >> 4 & 0xfff;   \
 191                 _id == 0x693;                           \
 192          })
 193 #else
 194 #define __cpu_is_pxa935(id)     (0)
 195 #endif
 196
 197 #define cpu_is_pxa210()                                 \
 198         ({                                              \
 199                 __cpu_is_pxa210(read_cpuid_id());       \
 200         })
 201
 202 #define cpu_is_pxa250()                                 \
 203         ({                                              \
 204                 __cpu_is_pxa250(read_cpuid_id());       \
 205         })
 206
 207 #define cpu_is_pxa255()                                 \
 208         ({                                              \
 209                 __cpu_is_pxa255(read_cpuid_id());       \
 210         })
 211
 212 #define cpu_is_pxa25x()                                 \
 213         ({                                              \
 214                 __cpu_is_pxa25x(read_cpuid_id());       \
 215         })
 216
 217 #define cpu_is_pxa27x()                                 \
 218         ({                                              \
 219                 __cpu_is_pxa27x(read_cpuid_id());       \
 220         })
 221
 222 #define cpu_is_pxa300()                                 \
 223         ({                                              \
 224                 __cpu_is_pxa300(read_cpuid_id());       \
 225          })
 226
 227 #define cpu_is_pxa310()                                 \
 228         ({                                              \
 229                 __cpu_is_pxa310(read_cpuid_id());       \
 230          })
 231
 232 #define cpu_is_pxa320()                                 \
 233         ({                                              \
 234                 __cpu_is_pxa320(read_cpuid_id());       \
 235          })
 236
 237 #define cpu_is_pxa930()                                 \
 238         ({                                              \
 239                 __cpu_is_pxa930(read_cpuid_id());       \
 240          })
 241
 242 #define cpu_is_pxa935()                                 \
 243         ({                                              \
 244                 __cpu_is_pxa935(read_cpuid_id());       \
 245          })
 246
 247
 248
 249 /*
 250  * CPUID Core Generation Bit
 251  * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
 252  */
 253 #if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
 254 #define __cpu_is_pxa2xx(id)                             \
 255         ({                                              \
 256                 unsigned int _id = (id) >> 13 & 0x7;    \
 257                 _id <= 0x2;                             \
 258          })
 259 #else
 260 #define __cpu_is_pxa2xx(id)     (0)
 261 #endif
 262
 263 #ifdef CONFIG_PXA3xx
 264 #define __cpu_is_pxa3xx(id)                             \
 265         ({                                              \
 266                 __cpu_is_pxa300(id)                     \
 267                         || __cpu_is_pxa310(id)          \
 268                         || __cpu_is_pxa320(id)          \
 269                         || __cpu_is_pxa93x(id);         \
 270          })
 271 #else
 272 #define __cpu_is_pxa3xx(id)     (0)
 273 #endif
 274
 275 #if defined(CONFIG_CPU_PXA930) || defined(CONFIG_CPU_PXA935)
 276 #define __cpu_is_pxa93x(id)                             \
 277         ({                                              \
 278                 __cpu_is_pxa930(id)                     \
 279                         || __cpu_is_pxa935(id);         \
 280          })
 281 #else
 282 #define __cpu_is_pxa93x(id)     (0)
 283 #endif
 284
 285 #define cpu_is_pxa2xx()                                 \
 286         ({                                              \
 287                 __cpu_is_pxa2xx(read_cpuid_id());       \
 288          })
 289
 290 #define cpu_is_pxa3xx()                                 \
 291         ({                                              \
 292                 __cpu_is_pxa3xx(read_cpuid_id());       \
 293          })
 294
 295 #define cpu_is_pxa93x()                                 \
 296         ({                                              \
 297                 __cpu_is_pxa93x(read_cpuid_id());       \
 298          })
 299
 300
 301 /*
 302  * return current memory and LCD clock frequency in units of 10kHz
 303  */
 304 extern unsigned int get_memclk_frequency_10khz(void);
 305
 306 /* return the clock tick rate of the OS timer */
 307 extern unsigned long get_clock_tick_rate(void);
 308 #endif
 309
 310 #endif  /* _ASM_ARCH_HARDWARE_H */