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