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 #include <asm/cputype.h>
  66
  67 #ifdef CONFIG_PXA25x
  68 #define __cpu_is_pxa21x(id)                             \
  69         ({                                              \
  70                 unsigned int _id = (id) >> 4 & 0xf3f;   \
  71                 _id == 0x212;                           \
  72         })
  73
  74 #define __cpu_is_pxa255(id)                             \
  75         ({                                              \
  76                 unsigned int _id = (id) >> 4 & 0xfff;   \
  77                 _id == 0x2d0;                           \
  78          })
  79
  80 #define __cpu_is_pxa25x(id)                             \
  81         ({                                              \
  82                 unsigned int _id = (id) >> 4 & 0xfff;   \
  83                 _id == 0x2d0 || _id == 0x290;           \
  84         })
  85 #else
  86 #define __cpu_is_pxa21x(id)     (0)
  87 #define __cpu_is_pxa255(id)     (0)
  88 #define __cpu_is_pxa25x(id)     (0)
  89 #endif
  90
  91 #ifdef CONFIG_PXA27x
  92 #define __cpu_is_pxa27x(id)                             \
  93         ({                                              \
  94                 unsigned int _id = (id) >> 4 & 0xfff;   \
  95                 _id == 0x411;                           \
  96         })
  97 #else
  98 #define __cpu_is_pxa27x(id)     (0)
  99 #endif
 100
 101 #ifdef CONFIG_CPU_PXA300
 102 #define __cpu_is_pxa300(id)                             \
 103         ({                                              \
 104                 unsigned int _id = (id) >> 4 & 0xfff;   \
 105                 _id == 0x688;                           \
 106          })
 107 #else
 108 #define __cpu_is_pxa300(id)     (0)
 109 #endif
 110
 111 #ifdef CONFIG_CPU_PXA310
 112 #define __cpu_is_pxa310(id)                             \
 113         ({                                              \
 114                 unsigned int _id = (id) >> 4 & 0xfff;   \
 115                 _id == 0x689;                           \
 116          })
 117 #else
 118 #define __cpu_is_pxa310(id)     (0)
 119 #endif
 120
 121 #ifdef CONFIG_CPU_PXA320
 122 #define __cpu_is_pxa320(id)                             \
 123         ({                                              \
 124                 unsigned int _id = (id) >> 4 & 0xfff;   \
 125                 _id == 0x603 || _id == 0x682;           \
 126          })
 127 #else
 128 #define __cpu_is_pxa320(id)     (0)
 129 #endif
 130
 131 #ifdef CONFIG_CPU_PXA930
 132 #define __cpu_is_pxa930(id)                             \
 133         ({                                              \
 134                 unsigned int _id = (id) >> 4 & 0xfff;   \
 135                 _id == 0x683;           \
 136          })
 137 #else
 138 #define __cpu_is_pxa930(id)     (0)
 139 #endif
 140
 141 #define cpu_is_pxa21x()                                 \
 142         ({                                              \
 143                 __cpu_is_pxa21x(read_cpuid_id());       \
 144         })
 145
 146 #define cpu_is_pxa255()                                 \
 147         ({                                              \
 148                 __cpu_is_pxa255(read_cpuid_id());       \
 149         })
 150
 151 #define cpu_is_pxa25x()                                 \
 152         ({                                              \
 153                 __cpu_is_pxa25x(read_cpuid_id());       \
 154         })
 155
 156 #define cpu_is_pxa27x()                                 \
 157         ({                                              \
 158                 __cpu_is_pxa27x(read_cpuid_id());       \
 159         })
 160
 161 #define cpu_is_pxa300()                                 \
 162         ({                                              \
 163                 __cpu_is_pxa300(read_cpuid_id());       \
 164          })
 165
 166 #define cpu_is_pxa310()                                 \
 167         ({                                              \
 168                 __cpu_is_pxa310(read_cpuid_id());       \
 169          })
 170
 171 #define cpu_is_pxa320()                                 \
 172         ({                                              \
 173                 __cpu_is_pxa320(read_cpuid_id());       \
 174          })
 175
 176 #define cpu_is_pxa930()                                 \
 177         ({                                              \
 178                 unsigned int id = read_cpuid(CPUID_ID); \
 179                 __cpu_is_pxa930(id);                    \
 180          })
 181
 182 /*
 183  * CPUID Core Generation Bit
 184  * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
 185  * == 0x3 for pxa300/pxa310/pxa320
 186  */
 187 #define __cpu_is_pxa2xx(id)                             \
 188         ({                                              \
 189                 unsigned int _id = (id) >> 13 & 0x7;    \
 190                 _id <= 0x2;                             \
 191          })
 192
 193 #define __cpu_is_pxa3xx(id)                             \
 194         ({                                              \
 195                 unsigned int _id = (id) >> 13 & 0x7;    \
 196                 _id == 0x3;                             \
 197          })
 198
 199 #define cpu_is_pxa2xx()                                 \
 200         ({                                              \
 201                 __cpu_is_pxa2xx(read_cpuid_id());       \
 202          })
 203
 204 #define cpu_is_pxa3xx()                                 \
 205         ({                                              \
 206                 __cpu_is_pxa3xx(read_cpuid_id());       \
 207          })
 208
 209 /*
 210  * Handy routine to set GPIO alternate functions
 211  */
 212 extern int pxa_gpio_mode( int gpio_mode );
 213
 214 /*
 215  * Return GPIO level, nonzero means high, zero is low
 216  */
 217 extern int pxa_gpio_get_value(unsigned gpio);
 218
 219 /*
 220  * Set output GPIO level
 221  */
 222 extern void pxa_gpio_set_value(unsigned gpio, int value);
 223
 224 /*
 225  * return current memory and LCD clock frequency in units of 10kHz
 226  */
 227 extern unsigned int get_memclk_frequency_10khz(void);
 228
 229 #endif
 230
 231 #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
 232 #define PCIBIOS_MIN_IO          0
 233 #define PCIBIOS_MIN_MEM         0
 234 #define pcibios_assign_all_busses()     1
 235 #endif
 236
 237 #endif  /* _ASM_ARCH_HARDWARE_H */