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_ADDR           UNCACHED_PHYS_0
  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_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
  40 #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
  41
  42 #ifndef __ASSEMBLY__
  43
  44 # define __REG(x)       (*((volatile u32 *)io_p2v(x)))
  45
  46 /* With indexed regs we don't want to feed the index through io_p2v()
  47    especially if it is a variable, otherwise horrible code will result. */
  48 # define __REG2(x,y)    \
  49         (*(volatile u32 *)((u32)&__REG(x) + (y)))
  50
  51 # define __PREG(x)      (io_v2p((u32)&(x)))
  52
  53 #else
  54
  55 # define __REG(x)       io_p2v(x)
  56 # define __PREG(x)      io_v2p(x)
  57
  58 #endif
  59
  60 #ifndef __ASSEMBLY__
  61
  62 #include <asm/cputype.h>
  63
  64 /*
  65  *   CPU     Stepping     CPU_ID         JTAG_ID
  66  *
  67  *  PXA210      B0      0x69052922      0x2926C013
  68  *  PXA210      B1      0x69052923      0x3926C013
  69  *  PXA210      B2      0x69052924      0x4926C013
  70  *  PXA210      C0      0x69052D25      0x5926C013
  71  *
  72  *  PXA250      A0      0x69052100      0x09264013
  73  *  PXA250      A1      0x69052101      0x19264013
  74  *  PXA250      B0      0x69052902      0x29264013
  75  *  PXA250      B1      0x69052903      0x39264013
  76  *  PXA250      B2      0x69052904      0x49264013
  77  *  PXA250      C0      0x69052D05      0x59264013
  78  *
  79  *  PXA255      A0      0x69052D06      0x69264013
  80  *
  81  *  PXA26x      A0      0x69052903      0x39264013
  82  *  PXA26x      B0      0x69052D05      0x59264013
  83  *
  84  *  PXA27x      A0      0x69054110      0x09265013
  85  *  PXA27x      A1      0x69054111      0x19265013
  86  *  PXA27x      B0      0x69054112      0x29265013
  87  *  PXA27x      B1      0x69054113      0x39265013
  88  *  PXA27x      C0      0x69054114      0x49265013
  89  *  PXA27x      C5      0x69054117      0x79265013
  90  *
  91  *  PXA30x      A0      0x69056880      0x0E648013
  92  *  PXA30x      A1      0x69056881      0x1E648013
  93  *  PXA31x      A0      0x69056890      0x0E649013
  94  *  PXA31x      A1      0x69056891      0x1E649013
  95  *  PXA31x      A2      0x69056892      0x2E649013
  96  *  PXA32x      B1      0x69056825      0x5E642013
  97  *  PXA32x      B2      0x69056826      0x6E642013
  98  *
  99  *  PXA930      B0      0x69056835      0x5E643013
 100  *  PXA930      B1      0x69056837      0x7E643013
 101  *  PXA930      B2      0x69056838      0x8E643013
 102  *
 103  *  PXA935      A0      0x56056931      0x1E653013
 104  *  PXA935      B0      0x56056936      0x6E653013
 105  *  PXA935      B1      0x56056938      0x8E653013
 106  */
 107 #ifdef CONFIG_PXA25x
 108 #define __cpu_is_pxa210(id)                             \
 109         ({                                              \
 110                 unsigned int _id = (id) & 0xf3f0;       \
 111                 _id == 0x2120;                          \
 112         })
 113
 114 #define __cpu_is_pxa250(id)                             \
 115         ({                                              \
 116                 unsigned int _id = (id) & 0xf3ff;       \
 117                 _id <= 0x2105;                          \
 118         })
 119
 120 #define __cpu_is_pxa255(id)                             \
 121         ({                                              \
 122                 unsigned int _id = (id) & 0xffff;       \
 123                 _id == 0x2d06;                          \
 124         })
 125
 126 #define __cpu_is_pxa25x(id)                             \
 127         ({                                              \
 128                 unsigned int _id = (id) & 0xf300;       \
 129                 _id == 0x2100;                          \
 130         })
 131 #else
 132 #define __cpu_is_pxa210(id)     (0)
 133 #define __cpu_is_pxa250(id)     (0)
 134 #define __cpu_is_pxa255(id)     (0)
 135 #define __cpu_is_pxa25x(id)     (0)
 136 #endif
 137
 138 #ifdef CONFIG_PXA27x
 139 #define __cpu_is_pxa27x(id)                             \
 140         ({                                              \
 141                 unsigned int _id = (id) >> 4 & 0xfff;   \
 142                 _id == 0x411;                           \
 143         })
 144 #else
 145 #define __cpu_is_pxa27x(id)     (0)
 146 #endif
 147
 148 #ifdef CONFIG_CPU_PXA300
 149 #define __cpu_is_pxa300(id)                             \
 150         ({                                              \
 151                 unsigned int _id = (id) >> 4 & 0xfff;   \
 152                 _id == 0x688;                           \
 153          })
 154 #else
 155 #define __cpu_is_pxa300(id)     (0)
 156 #endif
 157
 158 #ifdef CONFIG_CPU_PXA310
 159 #define __cpu_is_pxa310(id)                             \
 160         ({                                              \
 161                 unsigned int _id = (id) >> 4 & 0xfff;   \
 162                 _id == 0x689;                           \
 163          })
 164 #else
 165 #define __cpu_is_pxa310(id)     (0)
 166 #endif
 167
 168 #ifdef CONFIG_CPU_PXA320
 169 #define __cpu_is_pxa320(id)                             \
 170         ({                                              \
 171                 unsigned int _id = (id) >> 4 & 0xfff;   \
 172                 _id == 0x603 || _id == 0x682;           \
 173          })
 174 #else
 175 #define __cpu_is_pxa320(id)     (0)
 176 #endif
 177
 178 #ifdef CONFIG_CPU_PXA930
 179 #define __cpu_is_pxa930(id)                             \
 180         ({                                              \
 181                 unsigned int _id = (id) >> 4 & 0xfff;   \
 182                 _id == 0x683;                           \
 183          })
 184 #else
 185 #define __cpu_is_pxa930(id)     (0)
 186 #endif
 187
 188 #ifdef CONFIG_CPU_PXA935
 189 #define __cpu_is_pxa935(id)                             \
 190         ({                                              \
 191                 unsigned int _id = (id) >> 4 & 0xfff;   \
 192                 _id == 0x693;                           \
 193          })
 194 #else
 195 #define __cpu_is_pxa935(id)     (0)
 196 #endif
 197
 198 #ifdef CONFIG_CPU_PXA955
 199 #define __cpu_is_pxa955(id)                             \
 200         ({                                              \
 201                 unsigned int _id = (id) >> 4 & 0xfff;   \
 202                 _id == 0x581 || _id == 0xc08            \
 203                         || _id == 0xb76;                \
 204         })
 205 #else
 206 #define __cpu_is_pxa955(id)     (0)
 207 #endif
 208
 209 #define cpu_is_pxa210()                                 \
 210         ({                                              \
 211                 __cpu_is_pxa210(read_cpuid_id());       \
 212         })
 213
 214 #define cpu_is_pxa250()                                 \
 215         ({                                              \
 216                 __cpu_is_pxa250(read_cpuid_id());       \
 217         })
 218
 219 #define cpu_is_pxa255()                                 \
 220         ({                                              \
 221                 __cpu_is_pxa255(read_cpuid_id());       \
 222         })
 223
 224 #define cpu_is_pxa25x()                                 \
 225         ({                                              \
 226                 __cpu_is_pxa25x(read_cpuid_id());       \
 227         })
 228
 229 #define cpu_is_pxa27x()                                 \
 230         ({                                              \
 231                 __cpu_is_pxa27x(read_cpuid_id());       \
 232         })
 233
 234 #define cpu_is_pxa300()                                 \
 235         ({                                              \
 236                 __cpu_is_pxa300(read_cpuid_id());       \
 237          })
 238
 239 #define cpu_is_pxa310()                                 \
 240         ({                                              \
 241                 __cpu_is_pxa310(read_cpuid_id());       \
 242          })
 243
 244 #define cpu_is_pxa320()                                 \
 245         ({                                              \
 246                 __cpu_is_pxa320(read_cpuid_id());       \
 247          })
 248
 249 #define cpu_is_pxa930()                                 \
 250         ({                                              \
 251                 __cpu_is_pxa930(read_cpuid_id());       \
 252          })
 253
 254 #define cpu_is_pxa935()                                 \
 255         ({                                              \
 256                 __cpu_is_pxa935(read_cpuid_id());       \
 257          })
 258
 259 #define cpu_is_pxa955()                                 \
 260         ({                                              \
 261                 __cpu_is_pxa955(read_cpuid_id());       \
 262         })
 263
 264
 265 /*
 266  * CPUID Core Generation Bit
 267  * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
 268  */
 269 #if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
 270 #define __cpu_is_pxa2xx(id)                             \
 271         ({                                              \
 272                 unsigned int _id = (id) >> 13 & 0x7;    \
 273                 _id <= 0x2;                             \
 274          })
 275 #else
 276 #define __cpu_is_pxa2xx(id)     (0)
 277 #endif
 278
 279 #ifdef CONFIG_PXA3xx
 280 #define __cpu_is_pxa3xx(id)                             \
 281         ({                                              \
 282                 __cpu_is_pxa300(id)                     \
 283                         || __cpu_is_pxa310(id)          \
 284                         || __cpu_is_pxa320(id)          \
 285                         || __cpu_is_pxa93x(id);         \
 286          })
 287 #else
 288 #define __cpu_is_pxa3xx(id)     (0)
 289 #endif
 290
 291 #if defined(CONFIG_CPU_PXA930) || defined(CONFIG_CPU_PXA935)
 292 #define __cpu_is_pxa93x(id)                             \
 293         ({                                              \
 294                 __cpu_is_pxa930(id)                     \
 295                         || __cpu_is_pxa935(id);         \
 296          })
 297 #else
 298 #define __cpu_is_pxa93x(id)     (0)
 299 #endif
 300
 301 #ifdef CONFIG_PXA95x
 302 #define __cpu_is_pxa95x(id)                             \
 303         ({                                              \
 304                 __cpu_is_pxa955(id);                    \
 305         })
 306 #else
 307 #define __cpu_is_pxa95x(id)     (0)
 308 #endif
 309
 310 #define cpu_is_pxa2xx()                                 \
 311         ({                                              \
 312                 __cpu_is_pxa2xx(read_cpuid_id());       \
 313          })
 314
 315 #define cpu_is_pxa3xx()                                 \
 316         ({                                              \
 317                 __cpu_is_pxa3xx(read_cpuid_id());       \
 318          })
 319
 320 #define cpu_is_pxa93x()                                 \
 321         ({                                              \
 322                 __cpu_is_pxa93x(read_cpuid_id());       \
 323          })
 324
 325 #define cpu_is_pxa95x()                                 \
 326         ({                                              \
 327                 __cpu_is_pxa95x(read_cpuid_id());       \
 328         })
 329
 330 /*
 331  * return current memory and LCD clock frequency in units of 10kHz
 332  */
 333 extern unsigned int get_memclk_frequency_10khz(void);
 334
 335 /* return the clock tick rate of the OS timer */
 336 extern unsigned long get_clock_tick_rate(void);
 337 #endif
 338
 339 #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
 340 #define ARCH_HAS_DMA_SET_COHERENT_MASK
 341 #endif
 342
 343 #endif  /* _ASM_ARCH_HARDWARE_H */