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  * We requires absolute addresses.
  18  */
  19 #define PCIO_BASE               0
  20
  21 /*
  22  * Workarounds for at least 2 errata so far require this.
  23  * The mapping is set in mach-pxa/generic.c.
  24  */
  25 #define UNCACHED_PHYS_0         0xff000000
  26 #define UNCACHED_ADDR           UNCACHED_PHYS_0
  27
  28 /*
  29  * Intel PXA2xx internal register mapping:
  30  *
  31  * 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff
  32  * 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff
  33  * 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff
  34  * 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff
  35  * 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff
  36  * 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff
  37  * 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff
  38  *
  39  * Note that not all PXA2xx chips implement all those addresses, and the
  40  * kernel only maps the minimum needed range of this mapping.
  41  */
  42 #define io_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
  43 #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
  44
  45 #ifndef __ASSEMBLY__
  46
  47 # define __REG(x)       (*((volatile u32 *)io_p2v(x)))
  48
  49 /* With indexed regs we don't want to feed the index through io_p2v()
  50    especially if it is a variable, otherwise horrible code will result. */
  51 # define __REG2(x,y)    \
  52         (*(volatile u32 *)((u32)&__REG(x) + (y)))
  53
  54 # define __PREG(x)      (io_v2p((u32)&(x)))
  55
  56 #else
  57
  58 # define __REG(x)       io_p2v(x)
  59 # define __PREG(x)      io_v2p(x)
  60
  61 #endif
  62
  63 #ifndef __ASSEMBLY__
  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 #ifdef CONFIG_PXA25x
 105 #define __cpu_is_pxa210(id)                             \
 106         ({                                              \
 107                 unsigned int _id = (id) & 0xf3f0;       \
 108                 _id == 0x2120;                          \
 109         })
 110
 111 #define __cpu_is_pxa250(id)                             \
 112         ({                                              \
 113                 unsigned int _id = (id) & 0xf3ff;       \
 114                 _id <= 0x2105;                          \
 115         })
 116
 117 #define __cpu_is_pxa255(id)                             \
 118         ({                                              \
 119                 unsigned int _id = (id) & 0xffff;       \
 120                 _id == 0x2d06;                          \
 121         })
 122
 123 #define __cpu_is_pxa25x(id)                             \
 124         ({                                              \
 125                 unsigned int _id = (id) & 0xf300;       \
 126                 _id == 0x2100;                          \
 127         })
 128 #else
 129 #define __cpu_is_pxa210(id)     (0)
 130 #define __cpu_is_pxa250(id)     (0)
 131 #define __cpu_is_pxa255(id)     (0)
 132 #define __cpu_is_pxa25x(id)     (0)
 133 #endif
 134
 135 #ifdef CONFIG_PXA27x
 136 #define __cpu_is_pxa27x(id)                             \
 137         ({                                              \
 138                 unsigned int _id = (id) >> 4 & 0xfff;   \
 139                 _id == 0x411;                           \
 140         })
 141 #else
 142 #define __cpu_is_pxa27x(id)     (0)
 143 #endif
 144
 145 #ifdef CONFIG_CPU_PXA300
 146 #define __cpu_is_pxa300(id)                             \
 147         ({                                              \
 148                 unsigned int _id = (id) >> 4 & 0xfff;   \
 149                 _id == 0x688;                           \
 150          })
 151 #else
 152 #define __cpu_is_pxa300(id)     (0)
 153 #endif
 154
 155 #ifdef CONFIG_CPU_PXA310
 156 #define __cpu_is_pxa310(id)                             \
 157         ({                                              \
 158                 unsigned int _id = (id) >> 4 & 0xfff;   \
 159                 _id == 0x689;                           \
 160          })
 161 #else
 162 #define __cpu_is_pxa310(id)     (0)
 163 #endif
 164
 165 #ifdef CONFIG_CPU_PXA320
 166 #define __cpu_is_pxa320(id)                             \
 167         ({                                              \
 168                 unsigned int _id = (id) >> 4 & 0xfff;   \
 169                 _id == 0x603 || _id == 0x682;           \
 170          })
 171 #else
 172 #define __cpu_is_pxa320(id)     (0)
 173 #endif
 174
 175 #ifdef CONFIG_CPU_PXA930
 176 #define __cpu_is_pxa930(id)                             \
 177         ({                                              \
 178                 unsigned int _id = (id) >> 4 & 0xfff;   \
 179                 _id == 0x683;           \
 180          })
 181 #else
 182 #define __cpu_is_pxa930(id)     (0)
 183 #endif
 184
 185 #define cpu_is_pxa210()                                 \
 186         ({                                              \
 187                 __cpu_is_pxa210(read_cpuid_id());       \
 188         })
 189
 190 #define cpu_is_pxa250()                                 \
 191         ({                                              \
 192                 __cpu_is_pxa250(read_cpuid_id());       \
 193         })
 194
 195 #define cpu_is_pxa255()                                 \
 196         ({                                              \
 197                 __cpu_is_pxa255(read_cpuid_id());       \
 198         })
 199
 200 #define cpu_is_pxa25x()                                 \
 201         ({                                              \
 202                 __cpu_is_pxa25x(read_cpuid_id());       \
 203         })
 204
 205 extern int cpu_is_pxa26x(void);
 206
 207 #define cpu_is_pxa27x()                                 \
 208         ({                                              \
 209                 __cpu_is_pxa27x(read_cpuid_id());       \
 210         })
 211
 212 #define cpu_is_pxa300()                                 \
 213         ({                                              \
 214                 __cpu_is_pxa300(read_cpuid_id());       \
 215          })
 216
 217 #define cpu_is_pxa310()                                 \
 218         ({                                              \
 219                 __cpu_is_pxa310(read_cpuid_id());       \
 220          })
 221
 222 #define cpu_is_pxa320()                                 \
 223         ({                                              \
 224                 __cpu_is_pxa320(read_cpuid_id());       \
 225          })
 226
 227 #define cpu_is_pxa930()                                 \
 228         ({                                              \
 229                 unsigned int id = read_cpuid(CPUID_ID); \
 230                 __cpu_is_pxa930(id);                    \
 231          })
 232
 233 /*
 234  * CPUID Core Generation Bit
 235  * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
 236  * == 0x3 for pxa300/pxa310/pxa320
 237  */
 238 #define __cpu_is_pxa2xx(id)                             \
 239         ({                                              \
 240                 unsigned int _id = (id) >> 13 & 0x7;    \
 241                 _id <= 0x2;                             \
 242          })
 243
 244 #define __cpu_is_pxa3xx(id)                             \
 245         ({                                              \
 246                 unsigned int _id = (id) >> 13 & 0x7;    \
 247                 _id == 0x3;                             \
 248          })
 249
 250 #define cpu_is_pxa2xx()                                 \
 251         ({                                              \
 252                 __cpu_is_pxa2xx(read_cpuid_id());       \
 253          })
 254
 255 #define cpu_is_pxa3xx()                                 \
 256         ({                                              \
 257                 __cpu_is_pxa3xx(read_cpuid_id());       \
 258          })
 259
 260 /*
 261  * Handy routine to set GPIO alternate functions
 262  */
 263 extern int pxa_gpio_mode( int gpio_mode );
 264
 265 /*
 266  * Return GPIO level, nonzero means high, zero is low
 267  */
 268 extern int pxa_gpio_get_value(unsigned gpio);
 269
 270 /*
 271  * Set output GPIO level
 272  */
 273 extern void pxa_gpio_set_value(unsigned gpio, int value);
 274
 275 /*
 276  * return current memory and LCD clock frequency in units of 10kHz
 277  */
 278 extern unsigned int get_memclk_frequency_10khz(void);
 279
 280 #endif
 281
 282 #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
 283 #define PCIBIOS_MIN_IO          0
 284 #define PCIBIOS_MIN_MEM         0
 285 #define pcibios_assign_all_busses()     1
 286 #endif
 287
 288 #endif  /* _ASM_ARCH_HARDWARE_H */