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1 /*
2  *  linux/arch/arm/mm/proc-xscale.S
3  *
4  *  Author:     Nicolas Pitre
5  *  Created:    November 2000
6  *  Copyright:  (C) 2000, 2001 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  * MMU functions for the Intel XScale CPUs
13  *
14  * 2001 Aug 21:
15  *      some contributions by Brett Gaines <brett.w.gaines@intel.com>
16  *      Copyright 2001 by Intel Corp.
17  *
18  * 2001 Sep 08:
19  *      Completely revisited, many important fixes
20  *      Nicolas Pitre <nico@cam.org>
21  */
22
23 #include <linux/linkage.h>
24 #include <linux/init.h>
25 #include <asm/assembler.h>
26 #include <asm/elf.h>
27 #include <asm/pgtable.h>
28 #include <asm/pgtable-hwdef.h>
29 #include <asm/page.h>
30 #include <asm/ptrace.h>
31 #include "proc-macros.S"
32
33 /*
34  * This is the maximum size of an area which will be flushed.  If the area
35  * is larger than this, then we flush the whole cache
36  */
37 #define MAX_AREA_SIZE   32768
38
39 /*
40  * the cache line size of the I and D cache
41  */
42 #define CACHELINESIZE   32
43
44 /*
45  * the size of the data cache
46  */
47 #define CACHESIZE       32768
48
49 /*
50  * Virtual address used to allocate the cache when flushed
51  *
52  * This must be an address range which is _never_ used.  It should
53  * apparently have a mapping in the corresponding page table for
54  * compatibility with future CPUs that _could_ require it.  For instance we
55  * don't care.
56  *
57  * This must be aligned on a 2*CACHESIZE boundary.  The code selects one of
58  * the 2 areas in alternance each time the clean_d_cache macro is used.
59  * Without this the XScale core exhibits cache eviction problems and no one
60  * knows why.
61  *
62  * Reminder: the vector table is located at 0xffff0000-0xffff0fff.
63  */
64 #define CLEAN_ADDR      0xfffe0000
65
66 /*
67  * This macro is used to wait for a CP15 write and is needed
68  * when we have to ensure that the last operation to the co-pro
69  * was completed before continuing with operation.
70  */
71         .macro  cpwait, rd
72         mrc     p15, 0, \rd, c2, c0, 0          @ arbitrary read of cp15
73         mov     \rd, \rd                        @ wait for completion
74         sub     pc, pc, #4                      @ flush instruction pipeline
75         .endm
76
77         .macro  cpwait_ret, lr, rd
78         mrc     p15, 0, \rd, c2, c0, 0          @ arbitrary read of cp15
79         sub     pc, \lr, \rd, LSR #32           @ wait for completion and
80                                                 @ flush instruction pipeline
81         .endm
82
83 /*
84  * This macro cleans the entire dcache using line allocate.
85  * The main loop has been unrolled to reduce loop overhead.
86  * rd and rs are two scratch registers.
87  */
88         .macro  clean_d_cache, rd, rs
89         ldr     \rs, =clean_addr
90         ldr     \rd, [\rs]
91         eor     \rd, \rd, #CACHESIZE
92         str     \rd, [\rs]
93         add     \rs, \rd, #CACHESIZE
94 1:      mcr     p15, 0, \rd, c7, c2, 5          @ allocate D cache line
95         add     \rd, \rd, #CACHELINESIZE
96         mcr     p15, 0, \rd, c7, c2, 5          @ allocate D cache line
97         add     \rd, \rd, #CACHELINESIZE
98         mcr     p15, 0, \rd, c7, c2, 5          @ allocate D cache line
99         add     \rd, \rd, #CACHELINESIZE
100         mcr     p15, 0, \rd, c7, c2, 5          @ allocate D cache line
101         add     \rd, \rd, #CACHELINESIZE
102         teq     \rd, \rs
103         bne     1b
104         .endm
105
106         .data
107 clean_addr:     .word   CLEAN_ADDR
108
109         .text
110
111 /*
112  * cpu_xscale_proc_init()
113  *
114  * Nothing too exciting at the moment
115  */
116 ENTRY(cpu_xscale_proc_init)
117         @ enable write buffer coalescing. Some bootloader disable it
118         mrc     p15, 0, r1, c1, c0, 1
119         bic     r1, r1, #1
120         mcr     p15, 0, r1, c1, c0, 1
121         mov     pc, lr
122
123 /*
124  * cpu_xscale_proc_fin()
125  */
126 ENTRY(cpu_xscale_proc_fin)
127         str     lr, [sp, #-4]!
128         mov     r0, #PSR_F_BIT|PSR_I_BIT|SVC_MODE
129         msr     cpsr_c, r0
130         bl      xscale_flush_kern_cache_all     @ clean caches
131         mrc     p15, 0, r0, c1, c0, 0           @ ctrl register
132         bic     r0, r0, #0x1800                 @ ...IZ...........
133         bic     r0, r0, #0x0006                 @ .............CA.
134         mcr     p15, 0, r0, c1, c0, 0           @ disable caches
135         ldr     pc, [sp], #4
136
137 /*
138  * cpu_xscale_reset(loc)
139  *
140  * Perform a soft reset of the system.  Put the CPU into the
141  * same state as it would be if it had been reset, and branch
142  * to what would be the reset vector.
143  *
144  * loc: location to jump to for soft reset
145  *
146  * Beware PXA270 erratum E7.
147  */
148         .align  5
149 ENTRY(cpu_xscale_reset)
150         mov     r1, #PSR_F_BIT|PSR_I_BIT|SVC_MODE
151         msr     cpsr_c, r1                      @ reset CPSR
152         mcr     p15, 0, r1, c10, c4, 1          @ unlock I-TLB
153         mcr     p15, 0, r1, c8, c5, 0           @ invalidate I-TLB
154         mrc     p15, 0, r1, c1, c0, 0           @ ctrl register
155         bic     r1, r1, #0x0086                 @ ........B....CA.
156         bic     r1, r1, #0x3900                 @ ..VIZ..S........
157         sub     pc, pc, #4                      @ flush pipeline
158         @ *** cache line aligned ***
159         mcr     p15, 0, r1, c1, c0, 0           @ ctrl register
160         bic     r1, r1, #0x0001                 @ ...............M
161         mcr     p15, 0, ip, c7, c7, 0           @ invalidate I,D caches & BTB
162         mcr     p15, 0, r1, c1, c0, 0           @ ctrl register
163         @ CAUTION: MMU turned off from this point. We count on the pipeline
164         @ already containing those two last instructions to survive.
165         mcr     p15, 0, ip, c8, c7, 0           @ invalidate I & D TLBs
166         mov     pc, r0
167
168 /*
169  * cpu_xscale_do_idle()
170  *
171  * Cause the processor to idle
172  *
173  * For now we do nothing but go to idle mode for every case
174  *
175  * XScale supports clock switching, but using idle mode support
176  * allows external hardware to react to system state changes.
177  */
178         .align  5
179
180 ENTRY(cpu_xscale_do_idle)
181         mov     r0, #1
182         mcr     p14, 0, r0, c7, c0, 0           @ Go to IDLE
183         mov     pc, lr
184
185 /* ================================= CACHE ================================ */
186
187 /*
188  *      flush_user_cache_all()
189  *
190  *      Invalidate all cache entries in a particular address
191  *      space.
192  */
193 ENTRY(xscale_flush_user_cache_all)
194         /* FALLTHROUGH */
195
196 /*
197  *      flush_kern_cache_all()
198  *
199  *      Clean and invalidate the entire cache.
200  */
201 ENTRY(xscale_flush_kern_cache_all)
202         mov     r2, #VM_EXEC
203         mov     ip, #0
204 __flush_whole_cache:
205         clean_d_cache r0, r1
206         tst     r2, #VM_EXEC
207         mcrne   p15, 0, ip, c7, c5, 0           @ Invalidate I cache & BTB
208         mcrne   p15, 0, ip, c7, c10, 4          @ Drain Write (& Fill) Buffer
209         mov     pc, lr
210
211 /*
212  *      flush_user_cache_range(start, end, vm_flags)
213  *
214  *      Invalidate a range of cache entries in the specified
215  *      address space.
216  *
217  *      - start - start address (may not be aligned)
218  *      - end   - end address (exclusive, may not be aligned)
219  *      - vma   - vma_area_struct describing address space
220  */
221         .align  5
222 ENTRY(xscale_flush_user_cache_range)
223         mov     ip, #0
224         sub     r3, r1, r0                      @ calculate total size
225         cmp     r3, #MAX_AREA_SIZE
226         bhs     __flush_whole_cache
227
228 1:      tst     r2, #VM_EXEC
229         mcrne   p15, 0, r0, c7, c5, 1           @ Invalidate I cache line
230         mcr     p15, 0, r0, c7, c10, 1          @ Clean D cache line
231         mcr     p15, 0, r0, c7, c6, 1           @ Invalidate D cache line
232         add     r0, r0, #CACHELINESIZE
233         cmp     r0, r1
234         blo     1b
235         tst     r2, #VM_EXEC
236         mcrne   p15, 0, ip, c7, c5, 6           @ Invalidate BTB
237         mcrne   p15, 0, ip, c7, c10, 4          @ Drain Write (& Fill) Buffer
238         mov     pc, lr
239
240 /*
241  *      coherent_kern_range(start, end)
242  *
243  *      Ensure coherency between the Icache and the Dcache in the
244  *      region described by start.  If you have non-snooping
245  *      Harvard caches, you need to implement this function.
246  *
247  *      - start  - virtual start address
248  *      - end    - virtual end address
249  *
250  *      Note: single I-cache line invalidation isn't used here since
251  *      it also trashes the mini I-cache used by JTAG debuggers.
252  */
253 ENTRY(xscale_coherent_kern_range)
254         bic     r0, r0, #CACHELINESIZE - 1
255 1:      mcr     p15, 0, r0, c7, c10, 1          @ clean D entry
256         add     r0, r0, #CACHELINESIZE
257         cmp     r0, r1
258         blo     1b
259         mov     r0, #0
260         mcr     p15, 0, r0, c7, c5, 0           @ Invalidate I cache & BTB
261         mcr     p15, 0, r0, c7, c10, 4          @ Drain Write (& Fill) Buffer
262         mov     pc, lr
263
264 /*
265  *      coherent_user_range(start, end)
266  *
267  *      Ensure coherency between the Icache and the Dcache in the
268  *      region described by start.  If you have non-snooping
269  *      Harvard caches, you need to implement this function.
270  *
271  *      - start  - virtual start address
272  *      - end    - virtual end address
273  */
274 ENTRY(xscale_coherent_user_range)
275         bic     r0, r0, #CACHELINESIZE - 1
276 1:      mcr     p15, 0, r0, c7, c10, 1          @ clean D entry
277         mcr     p15, 0, r0, c7, c5, 1           @ Invalidate I cache entry
278         add     r0, r0, #CACHELINESIZE
279         cmp     r0, r1
280         blo     1b
281         mov     r0, #0
282         mcr     p15, 0, r0, c7, c5, 6           @ Invalidate BTB
283         mcr     p15, 0, r0, c7, c10, 4          @ Drain Write (& Fill) Buffer
284         mov     pc, lr
285
286 /*
287  *      flush_kern_dcache_page(void *page)
288  *
289  *      Ensure no D cache aliasing occurs, either with itself or
290  *      the I cache
291  *
292  *      - addr  - page aligned address
293  */
294 ENTRY(xscale_flush_kern_dcache_page)
295         add     r1, r0, #PAGE_SZ
296 1:      mcr     p15, 0, r0, c7, c10, 1          @ clean D entry
297         mcr     p15, 0, r0, c7, c6, 1           @ invalidate D entry
298         add     r0, r0, #CACHELINESIZE
299         cmp     r0, r1
300         blo     1b
301         mov     r0, #0
302         mcr     p15, 0, r0, c7, c5, 0           @ Invalidate I cache & BTB
303         mcr     p15, 0, r0, c7, c10, 4          @ Drain Write (& Fill) Buffer
304         mov     pc, lr
305
306 /*
307  *      dma_inv_range(start, end)
308  *
309  *      Invalidate (discard) the specified virtual address range.
310  *      May not write back any entries.  If 'start' or 'end'
311  *      are not cache line aligned, those lines must be written
312  *      back.
313  *
314  *      - start  - virtual start address
315  *      - end    - virtual end address
316  */
317 ENTRY(xscale_dma_inv_range)
318         tst     r0, #CACHELINESIZE - 1
319         bic     r0, r0, #CACHELINESIZE - 1
320         mcrne   p15, 0, r0, c7, c10, 1          @ clean D entry
321         tst     r1, #CACHELINESIZE - 1
322         mcrne   p15, 0, r1, c7, c10, 1          @ clean D entry
323 1:      mcr     p15, 0, r0, c7, c6, 1           @ invalidate D entry
324         add     r0, r0, #CACHELINESIZE
325         cmp     r0, r1
326         blo     1b
327         mcr     p15, 0, r0, c7, c10, 4          @ Drain Write (& Fill) Buffer
328         mov     pc, lr
329
330 /*
331  *      dma_clean_range(start, end)
332  *
333  *      Clean the specified virtual address range.
334  *
335  *      - start  - virtual start address
336  *      - end    - virtual end address
337  */
338 ENTRY(xscale_dma_clean_range)
339         bic     r0, r0, #CACHELINESIZE - 1
340 1:      mcr     p15, 0, r0, c7, c10, 1          @ clean D entry
341         add     r0, r0, #CACHELINESIZE
342         cmp     r0, r1
343         blo     1b
344         mcr     p15, 0, r0, c7, c10, 4          @ Drain Write (& Fill) Buffer
345         mov     pc, lr
346
347 /*
348  *      dma_flush_range(start, end)
349  *
350  *      Clean and invalidate the specified virtual address range.
351  *
352  *      - start  - virtual start address
353  *      - end    - virtual end address
354  */
355 ENTRY(xscale_dma_flush_range)
356         bic     r0, r0, #CACHELINESIZE - 1
357 1:      mcr     p15, 0, r0, c7, c10, 1          @ clean D entry
358         mcr     p15, 0, r0, c7, c6, 1           @ invalidate D entry
359         add     r0, r0, #CACHELINESIZE
360         cmp     r0, r1
361         blo     1b
362         mcr     p15, 0, r0, c7, c10, 4          @ Drain Write (& Fill) Buffer
363         mov     pc, lr
364
365 ENTRY(xscale_cache_fns)
366         .long   xscale_flush_kern_cache_all
367         .long   xscale_flush_user_cache_all
368         .long   xscale_flush_user_cache_range
369         .long   xscale_coherent_kern_range
370         .long   xscale_coherent_user_range
371         .long   xscale_flush_kern_dcache_page
372         .long   xscale_dma_inv_range
373         .long   xscale_dma_clean_range
374         .long   xscale_dma_flush_range
375
376 /*
377  * On stepping A0/A1 of the 80200, invalidating D-cache by line doesn't
378  * clear the dirty bits, which means that if we invalidate a dirty line,
379  * the dirty data can still be written back to external memory later on.
380  *
381  * The recommended workaround is to always do a clean D-cache line before
382  * doing an invalidate D-cache line, so on the affected processors,
383  * dma_inv_range() is implemented as dma_flush_range().
384  *
385  * See erratum #25 of "Intel 80200 Processor Specification Update",
386  * revision January 22, 2003, available at:
387  *     http://www.intel.com/design/iio/specupdt/273415.htm
388  */
389 ENTRY(xscale_80200_A0_A1_cache_fns)
390         .long   xscale_flush_kern_cache_all
391         .long   xscale_flush_user_cache_all
392         .long   xscale_flush_user_cache_range
393         .long   xscale_coherent_kern_range
394         .long   xscale_coherent_user_range
395         .long   xscale_flush_kern_dcache_page
396         .long   xscale_dma_flush_range
397         .long   xscale_dma_clean_range
398         .long   xscale_dma_flush_range
399
400 ENTRY(cpu_xscale_dcache_clean_area)
401 1:      mcr     p15, 0, r0, c7, c10, 1          @ clean D entry
402         add     r0, r0, #CACHELINESIZE
403         subs    r1, r1, #CACHELINESIZE
404         bhi     1b
405         mov     pc, lr
406
407 /* =============================== PageTable ============================== */
408
409 #define PTE_CACHE_WRITE_ALLOCATE 0
410
411 /*
412  * cpu_xscale_switch_mm(pgd)
413  *
414  * Set the translation base pointer to be as described by pgd.
415  *
416  * pgd: new page tables
417  */
418         .align  5
419 ENTRY(cpu_xscale_switch_mm)
420         clean_d_cache r1, r2
421         mcr     p15, 0, ip, c7, c5, 0           @ Invalidate I cache & BTB
422         mcr     p15, 0, ip, c7, c10, 4          @ Drain Write (& Fill) Buffer
423         mcr     p15, 0, r0, c2, c0, 0           @ load page table pointer
424         mcr     p15, 0, ip, c8, c7, 0           @ invalidate I & D TLBs
425         cpwait_ret lr, ip
426
427 /*
428  * cpu_xscale_set_pte_ext(ptep, pte, ext)
429  *
430  * Set a PTE and flush it out
431  *
432  * Errata 40: must set memory to write-through for user read-only pages.
433  */
434         .align  5
435 ENTRY(cpu_xscale_set_pte_ext)
436         str     r1, [r0], #-2048                @ linux version
437
438         bic     r2, r1, #0xff0
439         orr     r2, r2, #PTE_TYPE_EXT           @ extended page
440
441         eor     r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
442
443         tst     r3, #L_PTE_USER                 @ User?
444         orrne   r2, r2, #PTE_EXT_AP_URO_SRW     @ yes -> user r/o, system r/w
445
446         tst     r3, #L_PTE_WRITE | L_PTE_DIRTY  @ Write and Dirty?
447         orreq   r2, r2, #PTE_EXT_AP_UNO_SRW     @ yes -> user n/a, system r/w
448                                                 @ combined with user -> user r/w
449
450         @
451         @ Handle the X bit.  We want to set this bit for the minicache
452         @ (U = E = B = W = 0, C = 1) or when write allocate is enabled,
453         @ and we have a writeable, cacheable region.  If we ignore the
454         @ U and E bits, we can allow user space to use the minicache as
455         @ well.
456         @
457         @  X = (C & ~W & ~B) | (C & W & B & write_allocate)
458         @
459         eor     ip, r1, #L_PTE_CACHEABLE
460         tst     ip, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE
461 #if PTE_CACHE_WRITE_ALLOCATE
462         eorne   ip, r1, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE
463         tstne   ip, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE
464 #endif
465         orreq   r2, r2, #PTE_EXT_TEX(1)
466
467         @
468         @ Erratum 40: The B bit must be cleared for a user read-only
469         @ cacheable page.
470         @
471         @  B = B & ~(U & C & ~W)
472         @
473         and     ip, r1, #L_PTE_USER | L_PTE_WRITE | L_PTE_CACHEABLE
474         teq     ip, #L_PTE_USER | L_PTE_CACHEABLE
475         biceq   r2, r2, #PTE_BUFFERABLE
476
477         tst     r3, #L_PTE_PRESENT | L_PTE_YOUNG        @ Present and Young?
478         movne   r2, #0                          @ no -> fault
479
480         str     r2, [r0]                        @ hardware version
481         mov     ip, #0
482         mcr     p15, 0, r0, c7, c10, 1          @ Clean D cache line
483         mcr     p15, 0, ip, c7, c10, 4          @ Drain Write (& Fill) Buffer
484         mov     pc, lr
485
486
487         .ltorg
488
489         .align
490
491         __INIT
492
493         .type   __xscale_setup, #function
494 __xscale_setup:
495         mcr     p15, 0, ip, c7, c7, 0           @ invalidate I, D caches & BTB
496         mcr     p15, 0, ip, c7, c10, 4          @ Drain Write (& Fill) Buffer
497         mcr     p15, 0, ip, c8, c7, 0           @ invalidate I, D TLBs
498         mov     r0, #1 << 6                     @ cp6 for IOP3xx and Bulverde
499         orr     r0, r0, #1 << 13                @ Its undefined whether this
500         mcr     p15, 0, r0, c15, c1, 0          @ affects USR or SVC modes
501
502         adr     r5, xscale_crval
503         ldmia   r5, {r5, r6}
504         mrc     p15, 0, r0, c1, c0, 0           @ get control register
505         bic     r0, r0, r5
506         orr     r0, r0, r6
507         mov     pc, lr
508         .size   __xscale_setup, . - __xscale_setup
509
510         /*
511          *  R
512          * .RVI ZFRS BLDP WCAM
513          * ..11 1.01 .... .101
514          * 
515          */
516         .type   xscale_crval, #object
517 xscale_crval:
518         crval   clear=0x00003b07, mmuset=0x00003905, ucset=0x00001900
519
520         __INITDATA
521
522 /*
523  * Purpose : Function pointers used to access above functions - all calls
524  *           come through these
525  */
526
527         .type   xscale_processor_functions, #object
528 ENTRY(xscale_processor_functions)
529         .word   v5t_early_abort
530         .word   cpu_xscale_proc_init
531         .word   cpu_xscale_proc_fin
532         .word   cpu_xscale_reset
533         .word   cpu_xscale_do_idle
534         .word   cpu_xscale_dcache_clean_area
535         .word   cpu_xscale_switch_mm
536         .word   cpu_xscale_set_pte_ext
537         .size   xscale_processor_functions, . - xscale_processor_functions
538
539         .section ".rodata"
540
541         .type   cpu_arch_name, #object
542 cpu_arch_name:
543         .asciz  "armv5te"
544         .size   cpu_arch_name, . - cpu_arch_name
545
546         .type   cpu_elf_name, #object
547 cpu_elf_name:
548         .asciz  "v5"
549         .size   cpu_elf_name, . - cpu_elf_name
550
551         .type   cpu_80200_A0_A1_name, #object
552 cpu_80200_A0_A1_name:
553         .asciz  "XScale-80200 A0/A1"
554         .size   cpu_80200_A0_A1_name, . - cpu_80200_A0_A1_name
555
556         .type   cpu_80200_name, #object
557 cpu_80200_name:
558         .asciz  "XScale-80200"
559         .size   cpu_80200_name, . - cpu_80200_name
560
561         .type   cpu_80219_name, #object
562 cpu_80219_name:
563         .asciz  "XScale-80219"
564         .size   cpu_80219_name, . - cpu_80219_name
565
566         .type   cpu_8032x_name, #object
567 cpu_8032x_name:
568         .asciz  "XScale-IOP8032x Family"
569         .size   cpu_8032x_name, . - cpu_8032x_name
570
571         .type   cpu_8033x_name, #object
572 cpu_8033x_name:
573         .asciz  "XScale-IOP8033x Family"
574         .size   cpu_8033x_name, . - cpu_8033x_name
575
576         .type   cpu_pxa250_name, #object
577 cpu_pxa250_name:
578         .asciz  "XScale-PXA250"
579         .size   cpu_pxa250_name, . - cpu_pxa250_name
580
581         .type   cpu_pxa210_name, #object
582 cpu_pxa210_name:
583         .asciz  "XScale-PXA210"
584         .size   cpu_pxa210_name, . - cpu_pxa210_name
585
586         .type   cpu_ixp42x_name, #object
587 cpu_ixp42x_name:
588         .asciz  "XScale-IXP42x Family"
589         .size   cpu_ixp42x_name, . - cpu_ixp42x_name
590
591         .type   cpu_ixp43x_name, #object
592 cpu_ixp43x_name:
593         .asciz  "XScale-IXP43x Family"
594         .size   cpu_ixp43x_name, . - cpu_ixp43x_name
595
596         .type   cpu_ixp46x_name, #object
597 cpu_ixp46x_name:
598         .asciz  "XScale-IXP46x Family"
599         .size   cpu_ixp46x_name, . - cpu_ixp46x_name
600
601         .type   cpu_ixp2400_name, #object
602 cpu_ixp2400_name:
603         .asciz  "XScale-IXP2400"
604         .size   cpu_ixp2400_name, . - cpu_ixp2400_name
605
606         .type   cpu_ixp2800_name, #object
607 cpu_ixp2800_name:
608         .asciz  "XScale-IXP2800"
609         .size   cpu_ixp2800_name, . - cpu_ixp2800_name
610
611         .type   cpu_pxa255_name, #object
612 cpu_pxa255_name:
613         .asciz  "XScale-PXA255"
614         .size   cpu_pxa255_name, . - cpu_pxa255_name
615
616         .type   cpu_pxa270_name, #object
617 cpu_pxa270_name:
618         .asciz  "XScale-PXA270"
619         .size   cpu_pxa270_name, . - cpu_pxa270_name
620
621         .align
622
623         .section ".proc.info.init", #alloc, #execinstr
624
625         .type   __80200_A0_A1_proc_info,#object
626 __80200_A0_A1_proc_info:
627         .long   0x69052000
628         .long   0xfffffffe
629         .long   PMD_TYPE_SECT | \
630                 PMD_SECT_BUFFERABLE | \
631                 PMD_SECT_CACHEABLE | \
632                 PMD_SECT_AP_WRITE | \
633                 PMD_SECT_AP_READ
634         .long   PMD_TYPE_SECT | \
635                 PMD_SECT_AP_WRITE | \
636                 PMD_SECT_AP_READ
637         b       __xscale_setup
638         .long   cpu_arch_name
639         .long   cpu_elf_name
640         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
641         .long   cpu_80200_name
642         .long   xscale_processor_functions
643         .long   v4wbi_tlb_fns
644         .long   xscale_mc_user_fns
645         .long   xscale_80200_A0_A1_cache_fns
646         .size   __80200_A0_A1_proc_info, . - __80200_A0_A1_proc_info
647
648         .type   __80200_proc_info,#object
649 __80200_proc_info:
650         .long   0x69052000
651         .long   0xfffffff0
652         .long   PMD_TYPE_SECT | \
653                 PMD_SECT_BUFFERABLE | \
654                 PMD_SECT_CACHEABLE | \
655                 PMD_SECT_AP_WRITE | \
656                 PMD_SECT_AP_READ
657         .long   PMD_TYPE_SECT | \
658                 PMD_SECT_AP_WRITE | \
659                 PMD_SECT_AP_READ
660         b       __xscale_setup
661         .long   cpu_arch_name
662         .long   cpu_elf_name
663         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
664         .long   cpu_80200_name
665         .long   xscale_processor_functions
666         .long   v4wbi_tlb_fns
667         .long   xscale_mc_user_fns
668         .long   xscale_cache_fns
669         .size   __80200_proc_info, . - __80200_proc_info
670
671         .type   __80219_proc_info,#object
672 __80219_proc_info:
673         .long   0x69052e20
674         .long   0xffffffe0
675         .long   PMD_TYPE_SECT | \
676                 PMD_SECT_BUFFERABLE | \
677                 PMD_SECT_CACHEABLE | \
678                 PMD_SECT_AP_WRITE | \
679                 PMD_SECT_AP_READ
680         .long   PMD_TYPE_SECT | \
681                 PMD_SECT_AP_WRITE | \
682                 PMD_SECT_AP_READ
683         b       __xscale_setup
684         .long   cpu_arch_name
685         .long   cpu_elf_name
686         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
687         .long   cpu_80219_name
688         .long   xscale_processor_functions
689         .long   v4wbi_tlb_fns
690         .long   xscale_mc_user_fns
691         .long   xscale_cache_fns
692         .size   __80219_proc_info, . - __80219_proc_info
693
694         .type   __8032x_proc_info,#object
695 __8032x_proc_info:
696         .long   0x69052420
697         .long   0xfffff7e0
698         .long   PMD_TYPE_SECT | \
699                 PMD_SECT_BUFFERABLE | \
700                 PMD_SECT_CACHEABLE | \
701                 PMD_SECT_AP_WRITE | \
702                 PMD_SECT_AP_READ
703         .long   PMD_TYPE_SECT | \
704                 PMD_SECT_AP_WRITE | \
705                 PMD_SECT_AP_READ
706         b       __xscale_setup
707         .long   cpu_arch_name
708         .long   cpu_elf_name
709         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
710         .long   cpu_8032x_name
711         .long   xscale_processor_functions
712         .long   v4wbi_tlb_fns
713         .long   xscale_mc_user_fns
714         .long   xscale_cache_fns
715         .size   __8032x_proc_info, . - __8032x_proc_info
716
717         .type   __8033x_proc_info,#object
718 __8033x_proc_info:
719         .long   0x69054010
720         .long   0xfffffd30
721         .long   PMD_TYPE_SECT | \
722                 PMD_SECT_BUFFERABLE | \
723                 PMD_SECT_CACHEABLE | \
724                 PMD_SECT_AP_WRITE | \
725                 PMD_SECT_AP_READ
726         .long   PMD_TYPE_SECT | \
727                 PMD_SECT_AP_WRITE | \
728                 PMD_SECT_AP_READ
729         b       __xscale_setup
730         .long   cpu_arch_name
731         .long   cpu_elf_name
732         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
733         .long   cpu_8033x_name
734         .long   xscale_processor_functions
735         .long   v4wbi_tlb_fns
736         .long   xscale_mc_user_fns
737         .long   xscale_cache_fns
738         .size   __8033x_proc_info, . - __8033x_proc_info
739
740         .type   __pxa250_proc_info,#object
741 __pxa250_proc_info:
742         .long   0x69052100
743         .long   0xfffff7f0
744         .long   PMD_TYPE_SECT | \
745                 PMD_SECT_BUFFERABLE | \
746                 PMD_SECT_CACHEABLE | \
747                 PMD_SECT_AP_WRITE | \
748                 PMD_SECT_AP_READ
749         .long   PMD_TYPE_SECT | \
750                 PMD_SECT_AP_WRITE | \
751                 PMD_SECT_AP_READ
752         b       __xscale_setup
753         .long   cpu_arch_name
754         .long   cpu_elf_name
755         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
756         .long   cpu_pxa250_name
757         .long   xscale_processor_functions
758         .long   v4wbi_tlb_fns
759         .long   xscale_mc_user_fns
760         .long   xscale_cache_fns
761         .size   __pxa250_proc_info, . - __pxa250_proc_info
762
763         .type   __pxa210_proc_info,#object
764 __pxa210_proc_info:
765         .long   0x69052120
766         .long   0xfffff3f0
767         .long   PMD_TYPE_SECT | \
768                 PMD_SECT_BUFFERABLE | \
769                 PMD_SECT_CACHEABLE | \
770                 PMD_SECT_AP_WRITE | \
771                 PMD_SECT_AP_READ
772         .long   PMD_TYPE_SECT | \
773                 PMD_SECT_AP_WRITE | \
774                 PMD_SECT_AP_READ
775         b       __xscale_setup
776         .long   cpu_arch_name
777         .long   cpu_elf_name
778         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
779         .long   cpu_pxa210_name
780         .long   xscale_processor_functions
781         .long   v4wbi_tlb_fns
782         .long   xscale_mc_user_fns
783         .long   xscale_cache_fns
784         .size   __pxa210_proc_info, . - __pxa210_proc_info
785
786         .type   __ixp2400_proc_info, #object
787 __ixp2400_proc_info:
788         .long   0x69054190
789         .long   0xfffffff0
790         .long   PMD_TYPE_SECT | \
791                 PMD_SECT_BUFFERABLE | \
792                 PMD_SECT_CACHEABLE | \
793                 PMD_SECT_AP_WRITE | \
794                 PMD_SECT_AP_READ
795         .long   PMD_TYPE_SECT | \
796                 PMD_SECT_AP_WRITE | \
797                 PMD_SECT_AP_READ
798         b       __xscale_setup
799         .long   cpu_arch_name
800         .long   cpu_elf_name
801         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
802         .long   cpu_ixp2400_name
803         .long   xscale_processor_functions
804         .long   v4wbi_tlb_fns
805         .long   xscale_mc_user_fns
806         .long   xscale_cache_fns
807         .size   __ixp2400_proc_info, . - __ixp2400_proc_info                
808
809         .type   __ixp2800_proc_info, #object
810 __ixp2800_proc_info:
811         .long   0x690541a0
812         .long   0xfffffff0
813         .long   PMD_TYPE_SECT | \
814                 PMD_SECT_BUFFERABLE | \
815                 PMD_SECT_CACHEABLE | \
816                 PMD_SECT_AP_WRITE | \
817                 PMD_SECT_AP_READ
818         .long   PMD_TYPE_SECT | \
819                 PMD_SECT_AP_WRITE | \
820                 PMD_SECT_AP_READ
821         b       __xscale_setup
822         .long   cpu_arch_name
823         .long   cpu_elf_name
824         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
825         .long   cpu_ixp2800_name
826         .long   xscale_processor_functions
827         .long   v4wbi_tlb_fns
828         .long   xscale_mc_user_fns
829         .long   xscale_cache_fns
830         .size   __ixp2800_proc_info, . - __ixp2800_proc_info                
831
832         .type   __ixp42x_proc_info, #object
833 __ixp42x_proc_info:
834         .long   0x690541c0
835         .long   0xffffffc0
836         .long   PMD_TYPE_SECT | \
837                 PMD_SECT_BUFFERABLE | \
838                 PMD_SECT_CACHEABLE | \
839                 PMD_SECT_AP_WRITE | \
840                 PMD_SECT_AP_READ
841         .long   PMD_TYPE_SECT | \
842                 PMD_SECT_AP_WRITE | \
843                 PMD_SECT_AP_READ
844         b       __xscale_setup
845         .long   cpu_arch_name
846         .long   cpu_elf_name
847         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
848         .long   cpu_ixp42x_name
849         .long   xscale_processor_functions
850         .long   v4wbi_tlb_fns
851         .long   xscale_mc_user_fns
852         .long   xscale_cache_fns
853         .size   __ixp42x_proc_info, . - __ixp42x_proc_info                
854
855         .type   __ixp43x_proc_info, #object
856 __ixp43x_proc_info:
857         .long   0x69054040
858         .long   0xfffffff0
859         .long   PMD_TYPE_SECT | \
860                 PMD_SECT_BUFFERABLE | \
861                 PMD_SECT_CACHEABLE | \
862                 PMD_SECT_AP_WRITE | \
863                 PMD_SECT_AP_READ
864         .long   PMD_TYPE_SECT | \
865                 PMD_SECT_AP_WRITE | \
866                 PMD_SECT_AP_READ
867         b       __xscale_setup
868         .long   cpu_arch_name
869         .long   cpu_elf_name
870         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
871         .long   cpu_ixp43x_name
872         .long   xscale_processor_functions
873         .long   v4wbi_tlb_fns
874         .long   xscale_mc_user_fns
875         .long   xscale_cache_fns
876         .size   __ixp43x_proc_info, . - __ixp43x_proc_info
877
878         .type   __ixp46x_proc_info, #object
879 __ixp46x_proc_info:
880         .long   0x69054200
881         .long   0xffffff00
882         .long   PMD_TYPE_SECT | \
883                 PMD_SECT_BUFFERABLE | \
884                 PMD_SECT_CACHEABLE | \
885                 PMD_SECT_AP_WRITE | \
886                 PMD_SECT_AP_READ
887         .long   PMD_TYPE_SECT | \
888                 PMD_SECT_AP_WRITE | \
889                 PMD_SECT_AP_READ
890         b       __xscale_setup
891         .long   cpu_arch_name
892         .long   cpu_elf_name
893         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
894         .long   cpu_ixp46x_name
895         .long   xscale_processor_functions
896         .long   v4wbi_tlb_fns
897         .long   xscale_mc_user_fns
898         .long   xscale_cache_fns
899         .size   __ixp46x_proc_info, . - __ixp46x_proc_info
900
901         .type   __pxa255_proc_info,#object
902 __pxa255_proc_info:
903         .long   0x69052d00
904         .long   0xfffffff0
905         .long   PMD_TYPE_SECT | \
906                 PMD_SECT_BUFFERABLE | \
907                 PMD_SECT_CACHEABLE | \
908                 PMD_SECT_AP_WRITE | \
909                 PMD_SECT_AP_READ
910         .long   PMD_TYPE_SECT | \
911                 PMD_SECT_AP_WRITE | \
912                 PMD_SECT_AP_READ
913         b       __xscale_setup
914         .long   cpu_arch_name
915         .long   cpu_elf_name
916         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
917         .long   cpu_pxa255_name
918         .long   xscale_processor_functions
919         .long   v4wbi_tlb_fns
920         .long   xscale_mc_user_fns
921         .long   xscale_cache_fns
922         .size   __pxa255_proc_info, . - __pxa255_proc_info
923
924         .type   __pxa270_proc_info,#object
925 __pxa270_proc_info:
926         .long   0x69054110
927         .long   0xfffffff0
928         .long   PMD_TYPE_SECT | \
929                 PMD_SECT_BUFFERABLE | \
930                 PMD_SECT_CACHEABLE | \
931                 PMD_SECT_AP_WRITE | \
932                 PMD_SECT_AP_READ
933         .long   PMD_TYPE_SECT | \
934                 PMD_SECT_AP_WRITE | \
935                 PMD_SECT_AP_READ
936         b       __xscale_setup
937         .long   cpu_arch_name
938         .long   cpu_elf_name
939         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
940         .long   cpu_pxa270_name
941         .long   xscale_processor_functions
942         .long   v4wbi_tlb_fns
943         .long   xscale_mc_user_fns
944         .long   xscale_cache_fns
945         .size   __pxa270_proc_info, . - __pxa270_proc_info
946