54b64eae3535b6466405c9a6b70e540738cd9834
[~shefty/rdma-dev.git] / 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 #endif  /* _ASM_ARCH_HARDWARE_H */