release/src-rt-6.x.4708/linux/linux-2.6.36/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 /*
  17  * Workarounds for at least 2 errata so far require this.
  18  * The mapping is set in mach-pxa/generic.c.
  19  */
  20 #define UNCACHED_PHYS_0         0xff000000
  21 #define UNCACHED_ADDR           UNCACHED_PHYS_0
  22
  23 /*
  24  * Intel PXA2xx internal register mapping:
  25  *
  26  * 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff
  27  * 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff
  28  * 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff
  29  * 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff
  30  * 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff
  31  * 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff
  32  * 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff
  33  *
  34  * Note that not all PXA2xx chips implement all those addresses, and the
  35  * kernel only maps the minimum needed range of this mapping.
  36  */
  37 #define io_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
  38 #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
  39
  40 #ifndef __ASSEMBLY__
  41
  42 # define __REG(x)       (*((volatile u32 *)io_p2v(x)))
  43
  44 /* With indexed regs we don't want to feed the index through io_p2v()
  45    especially if it is a variable, otherwise horrible code will result. */
  46 # define __REG2(x,y)    \
  47         (*(volatile u32 *)((u32)&__REG(x) + (y)))
  48
  49 # define __PREG(x)      (io_v2p((u32)&(x)))
  50
  51 #else
  52
  53 # define __REG(x)       io_p2v(x)
  54 # define __PREG(x)      io_v2p(x)
  55
  56 #endif
  57
  58 #ifndef __ASSEMBLY__
  59
  60 #include <asm/cputype.h>
  61
  62 /*
  63  *   CPU     Stepping     CPU_ID         JTAG_ID
  64  *
  65  *  PXA210      B0      0x69052922      0x2926C013
  66  *  PXA210      B1      0x69052923      0x3926C013
  67  *  PXA210      B2      0x69052924      0x4926C013
  68  *  PXA210      C0      0x69052D25      0x5926C013
  69  *
  70  *  PXA250      A0      0x69052100      0x09264013
  71  *  PXA250      A1      0x69052101      0x19264013
  72  *  PXA250      B0      0x69052902      0x29264013
  73  *  PXA250      B1      0x69052903      0x39264013
  74  *  PXA250      B2      0x69052904      0x49264013
  75  *  PXA250      C0      0x69052D05      0x59264013
  76  *
  77  *  PXA255      A0      0x69052D06      0x69264013
  78  *
  79  *  PXA26x      A0      0x69052903      0x39264013
  80  *  PXA26x      B0      0x69052D05      0x59264013
  81  *
  82  *  PXA27x      A0      0x69054110      0x09265013
  83  *  PXA27x      A1      0x69054111      0x19265013
  84  *  PXA27x      B0      0x69054112      0x29265013
  85  *  PXA27x      B1      0x69054113      0x39265013
  86  *  PXA27x      C0      0x69054114      0x49265013
  87  *  PXA27x      C5      0x69054117      0x79265013
  88  *
  89  *  PXA30x      A0      0x69056880      0x0E648013
  90  *  PXA30x      A1      0x69056881      0x1E648013
  91  *  PXA31x      A0      0x69056890      0x0E649013
  92  *  PXA31x      A1      0x69056891      0x1E649013
  93  *  PXA31x      A2      0x69056892      0x2E649013
  94  *  PXA32x      B1      0x69056825      0x5E642013
  95  *  PXA32x      B2      0x69056826      0x6E642013
  96  *
  97  *  PXA930      B0      0x69056835      0x5E643013
  98  *  PXA930      B1      0x69056837      0x7E643013
  99  *  PXA930      B2      0x69056838      0x8E643013
 100  *
 101  *  PXA935      A0      0x56056931      0x1E653013
 102  *  PXA935      B0      0x56056936      0x6E653013
 103  *  PXA935      B1      0x56056938      0x8E653013
 104  */
 105 #ifdef CONFIG_PXA25x
 106 #define __cpu_is_pxa210(id)                             \
 107         ({                                              \
 108                 unsigned int _id = (id) & 0xf3f0;       \
 109                 _id == 0x2120;                          \
 110         })
 111
 112 #define __cpu_is_pxa250(id)                             \
 113         ({                                              \
 114                 unsigned int _id = (id) & 0xf3ff;       \
 115                 _id <= 0x2105;                          \
 116         })
 117
 118 #define __cpu_is_pxa255(id)                             \
 119         ({                                              \
 120                 unsigned int _id = (id) & 0xffff;       \
 121                 _id == 0x2d06;                          \
 122         })
 123
 124 #define __cpu_is_pxa25x(id)                             \
 125         ({                                              \
 126                 unsigned int _id = (id) & 0xf300;       \
 127                 _id == 0x2100;                          \
 128         })
 129 #else
 130 #define __cpu_is_pxa210(id)     (0)
 131 #define __cpu_is_pxa250(id)     (0)
 132 #define __cpu_is_pxa255(id)     (0)
 133 #define __cpu_is_pxa25x(id)     (0)
 134 #endif
 135
 136 #ifdef CONFIG_PXA27x
 137 #define __cpu_is_pxa27x(id)                             \
 138         ({                                              \
 139                 unsigned int _id = (id) >> 4 & 0xfff;   \
 140                 _id == 0x411;                           \
 141         })
 142 #else
 143 #define __cpu_is_pxa27x(id)     (0)
 144 #endif
 145
 146 #ifdef CONFIG_CPU_PXA300
 147 #define __cpu_is_pxa300(id)                             \
 148         ({                                              \
 149                 unsigned int _id = (id) >> 4 & 0xfff;   \
 150                 _id == 0x688;                           \
 151          })
 152 #else
 153 #define __cpu_is_pxa300(id)     (0)
 154 #endif
 155
 156 #ifdef CONFIG_CPU_PXA310
 157 #define __cpu_is_pxa310(id)                             \
 158         ({                                              \
 159                 unsigned int _id = (id) >> 4 & 0xfff;   \
 160                 _id == 0x689;                           \
 161          })
 162 #else
 163 #define __cpu_is_pxa310(id)     (0)
 164 #endif
 165
 166 #ifdef CONFIG_CPU_PXA320
 167 #define __cpu_is_pxa320(id)                             \
 168         ({                                              \
 169                 unsigned int _id = (id) >> 4 & 0xfff;   \
 170                 _id == 0x603 || _id == 0x682;           \
 171          })
 172 #else
 173 #define __cpu_is_pxa320(id)     (0)
 174 #endif
 175
 176 #ifdef CONFIG_CPU_PXA930
 177 #define __cpu_is_pxa930(id)                             \
 178         ({                                              \
 179                 unsigned int _id = (id) >> 4 & 0xfff;   \
 180                 _id == 0x683;                           \
 181          })
 182 #else
 183 #define __cpu_is_pxa930(id)     (0)
 184 #endif
 185
 186 #ifdef CONFIG_CPU_PXA935
 187 #define __cpu_is_pxa935(id)                             \
 188         ({                                              \
 189                 unsigned int _id = (id) >> 4 & 0xfff;   \
 190                 _id == 0x693;                           \
 191          })
 192 #else
 193 #define __cpu_is_pxa935(id)     (0)
 194 #endif
 195
 196 #ifdef CONFIG_CPU_PXA950
 197 #define __cpu_is_pxa950(id)                             \
 198         ({                                              \
 199                 unsigned int _id = (id) >> 4 & 0xfff;   \
 200                 _id == 0x697;                           \
 201          })
 202 #else
 203 #define __cpu_is_pxa950(id)     (0)
 204 #endif
 205
 206 #define cpu_is_pxa210()                                 \
 207         ({                                              \
 208                 __cpu_is_pxa210(read_cpuid_id());       \
 209         })
 210
 211 #define cpu_is_pxa250()                                 \
 212         ({                                              \
 213                 __cpu_is_pxa250(read_cpuid_id());       \
 214         })
 215
 216 #define cpu_is_pxa255()                                 \
 217         ({                                              \
 218                 __cpu_is_pxa255(read_cpuid_id());       \
 219         })
 220
 221 #define cpu_is_pxa25x()                                 \
 222         ({                                              \
 223                 __cpu_is_pxa25x(read_cpuid_id());       \
 224         })
 225
 226 #define cpu_is_pxa27x()                                 \
 227         ({                                              \
 228                 __cpu_is_pxa27x(read_cpuid_id());       \
 229         })
 230
 231 #define cpu_is_pxa300()                                 \
 232         ({                                              \
 233                 __cpu_is_pxa300(read_cpuid_id());       \
 234          })
 235
 236 #define cpu_is_pxa310()                                 \
 237         ({                                              \
 238                 __cpu_is_pxa310(read_cpuid_id());       \
 239          })
 240
 241 #define cpu_is_pxa320()                                 \
 242         ({                                              \
 243                 __cpu_is_pxa320(read_cpuid_id());       \
 244          })
 245
 246 #define cpu_is_pxa930()                                 \
 247         ({                                              \
 248                 __cpu_is_pxa930(read_cpuid_id());       \
 249          })
 250
 251 #define cpu_is_pxa935()                                 \
 252         ({                                              \
 253                 __cpu_is_pxa935(read_cpuid_id());       \
 254          })
 255
 256 #define cpu_is_pxa950()                                 \
 257         ({                                              \
 258                 __cpu_is_pxa950(read_cpuid_id());       \
 259          })
 260
 261
 262 /*
 263  * CPUID Core Generation Bit
 264  * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
 265  * == 0x3 for pxa300/pxa310/pxa320
 266  */
 267 #if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
 268 #define __cpu_is_pxa2xx(id)                             \
 269         ({                                              \
 270                 unsigned int _id = (id) >> 13 & 0x7;    \
 271                 _id <= 0x2;                             \
 272          })
 273 #else
 274 #define __cpu_is_pxa2xx(id)     (0)
 275 #endif
 276
 277 #ifdef CONFIG_PXA3xx
 278 #define __cpu_is_pxa3xx(id)                             \
 279         ({                                              \
 280                 unsigned int _id = (id) >> 13 & 0x7;    \
 281                 _id == 0x3;                             \
 282          })
 283 #else
 284 #define __cpu_is_pxa3xx(id)     (0)
 285 #endif
 286
 287 #if defined(CONFIG_CPU_PXA930) || defined(CONFIG_CPU_PXA935)
 288 #define __cpu_is_pxa93x(id)                             \
 289         ({                                              \
 290                 unsigned int _id = (id) >> 4 & 0xfff;   \
 291                 _id == 0x683 || _id == 0x693;           \
 292          })
 293 #else
 294 #define __cpu_is_pxa93x(id)     (0)
 295 #endif
 296
 297 #define cpu_is_pxa2xx()                                 \
 298         ({                                              \
 299                 __cpu_is_pxa2xx(read_cpuid_id());       \
 300          })
 301
 302 #define cpu_is_pxa3xx()                                 \
 303         ({                                              \
 304                 __cpu_is_pxa3xx(read_cpuid_id());       \
 305          })
 306
 307 #define cpu_is_pxa93x()                                 \
 308         ({                                              \
 309                 __cpu_is_pxa93x(read_cpuid_id());       \
 310          })
 311 /*
 312  * return current memory and LCD clock frequency in units of 10kHz
 313  */
 314 extern unsigned int get_memclk_frequency_10khz(void);
 315
 316 /* return the clock tick rate of the OS timer */
 317 extern unsigned long get_clock_tick_rate(void);
 318 #endif
 319
 320 #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
 321 #define PCIBIOS_MIN_IO          0
 322 #define PCIBIOS_MIN_MEM         0
 323 #define pcibios_assign_all_busses()     1
 324 #define ARCH_HAS_DMA_SET_COHERENT_MASK
 325 #endif
 326
 327 #endif  /* _ASM_ARCH_HARDWARE_H */