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