blob: 207392f1ce8a15ae0cbf214fe4d818ebceffae17 [file] [log] [blame]
Assaf Hoffmane50d6402007-10-23 15:14:41 -04001/*
2 * linux/arch/arm/mm/proc-feroceon.S: MMU functions for Feroceon
3 *
4 * Heavily based on proc-arm926.S
5 * Maintainer: Assaf Hoffman <hoffman@marvell.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <linux/linkage.h>
23#include <linux/init.h>
24#include <asm/assembler.h>
25#include <asm/elf.h>
26#include <asm/pgtable-hwdef.h>
27#include <asm/pgtable.h>
28#include <asm/page.h>
29#include <asm/ptrace.h>
30#include "proc-macros.S"
31
32/*
33 * This is the maximum size of an area which will be invalidated
34 * using the single invalidate entry instructions. Anything larger
35 * than this, and we go for the whole cache.
36 *
37 * This value should be chosen such that we choose the cheapest
38 * alternative.
39 */
40#define CACHE_DLIMIT 16384
41
42/*
43 * the cache line size of the I and D cache
44 */
45#define CACHE_DLINESIZE 32
46
Nicolas Pitre6c386e52008-04-24 02:04:54 +020047 .bss
48 .align 3
49__cache_params_loc:
50 .space 8
51
Assaf Hoffmane50d6402007-10-23 15:14:41 -040052 .text
Nicolas Pitre6c386e52008-04-24 02:04:54 +020053__cache_params:
54 .word __cache_params_loc
55
Assaf Hoffmane50d6402007-10-23 15:14:41 -040056/*
57 * cpu_feroceon_proc_init()
58 */
59ENTRY(cpu_feroceon_proc_init)
Nicolas Pitre6c386e52008-04-24 02:04:54 +020060 mrc p15, 0, r0, c0, c0, 1 @ read cache type register
61 ldr r1, __cache_params
62 mov r2, #(16 << 5)
63 tst r0, #(1 << 16) @ get way
64 mov r0, r0, lsr #18 @ get cache size order
65 movne r3, #((4 - 1) << 30) @ 4-way
66 and r0, r0, #0xf
67 moveq r3, #0 @ 1-way
68 mov r2, r2, lsl r0 @ actual cache size
69 movne r2, r2, lsr #2 @ turned into # of sets
70 sub r2, r2, #(1 << 5)
71 stmia r1, {r2, r3}
Assaf Hoffmane50d6402007-10-23 15:14:41 -040072 mov pc, lr
73
74/*
75 * cpu_feroceon_proc_fin()
76 */
77ENTRY(cpu_feroceon_proc_fin)
78 stmfd sp!, {lr}
79 mov ip, #PSR_F_BIT | PSR_I_BIT | SVC_MODE
80 msr cpsr_c, ip
81 bl feroceon_flush_kern_cache_all
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +020082
Ronen Shitrit4360bb42008-09-23 15:28:10 +030083#if defined(CONFIG_CACHE_FEROCEON_L2) && \
84 !defined(CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH)
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +020085 mov r0, #0
86 mcr p15, 1, r0, c15, c9, 0 @ clean L2
87 mcr p15, 0, r0, c7, c10, 4 @ drain WB
88#endif
89
Assaf Hoffmane50d6402007-10-23 15:14:41 -040090 mrc p15, 0, r0, c1, c0, 0 @ ctrl register
91 bic r0, r0, #0x1000 @ ...i............
92 bic r0, r0, #0x000e @ ............wca.
93 mcr p15, 0, r0, c1, c0, 0 @ disable caches
94 ldmfd sp!, {pc}
95
96/*
97 * cpu_feroceon_reset(loc)
98 *
99 * Perform a soft reset of the system. Put the CPU into the
100 * same state as it would be if it had been reset, and branch
101 * to what would be the reset vector.
102 *
103 * loc: location to jump to for soft reset
104 */
105 .align 5
106ENTRY(cpu_feroceon_reset)
107 mov ip, #0
108 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches
109 mcr p15, 0, ip, c7, c10, 4 @ drain WB
110#ifdef CONFIG_MMU
111 mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
112#endif
113 mrc p15, 0, ip, c1, c0, 0 @ ctrl register
114 bic ip, ip, #0x000f @ ............wcam
115 bic ip, ip, #0x1100 @ ...i...s........
116 mcr p15, 0, ip, c1, c0, 0 @ ctrl register
117 mov pc, r0
118
119/*
120 * cpu_feroceon_do_idle()
121 *
122 * Called with IRQs disabled
123 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400124 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400125ENTRY(cpu_feroceon_do_idle)
126 mov r0, #0
127 mcr p15, 0, r0, c7, c10, 4 @ Drain write buffer
128 mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
129 mov pc, lr
130
131/*
132 * flush_user_cache_all()
133 *
134 * Clean and invalidate all cache entries in a particular
135 * address space.
136 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400137 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400138ENTRY(feroceon_flush_user_cache_all)
139 /* FALLTHROUGH */
140
141/*
142 * flush_kern_cache_all()
143 *
144 * Clean and invalidate the entire cache.
145 */
146ENTRY(feroceon_flush_kern_cache_all)
147 mov r2, #VM_EXEC
Nicolas Pitre6c386e52008-04-24 02:04:54 +0200148
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400149__flush_whole_cache:
Nicolas Pitre6c386e52008-04-24 02:04:54 +0200150 ldr r1, __cache_params
151 ldmia r1, {r1, r3}
1521: orr ip, r1, r3
1532: mcr p15, 0, ip, c7, c14, 2 @ clean + invalidate D set/way
154 subs ip, ip, #(1 << 30) @ next way
155 bcs 2b
156 subs r1, r1, #(1 << 5) @ next set
157 bcs 1b
158
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400159 tst r2, #VM_EXEC
Nicolas Pitre6c386e52008-04-24 02:04:54 +0200160 mov ip, #0
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400161 mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
162 mcrne p15, 0, ip, c7, c10, 4 @ drain WB
163 mov pc, lr
164
165/*
166 * flush_user_cache_range(start, end, flags)
167 *
168 * Clean and invalidate a range of cache entries in the
169 * specified address range.
170 *
171 * - start - start address (inclusive)
172 * - end - end address (exclusive)
173 * - flags - vm_flags describing address space
174 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400175 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400176ENTRY(feroceon_flush_user_cache_range)
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400177 sub r3, r1, r0 @ calculate total size
178 cmp r3, #CACHE_DLIMIT
179 bgt __flush_whole_cache
1801: tst r2, #VM_EXEC
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400181 mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D entry
182 mcrne p15, 0, r0, c7, c5, 1 @ invalidate I entry
183 add r0, r0, #CACHE_DLINESIZE
184 mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D entry
185 mcrne p15, 0, r0, c7, c5, 1 @ invalidate I entry
186 add r0, r0, #CACHE_DLINESIZE
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400187 cmp r0, r1
188 blo 1b
189 tst r2, #VM_EXEC
Nicolas Pitre6c386e52008-04-24 02:04:54 +0200190 mov ip, #0
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400191 mcrne p15, 0, ip, c7, c10, 4 @ drain WB
192 mov pc, lr
193
194/*
195 * coherent_kern_range(start, end)
196 *
197 * Ensure coherency between the Icache and the Dcache in the
198 * region described by start, end. If you have non-snooping
199 * Harvard caches, you need to implement this function.
200 *
201 * - start - virtual start address
202 * - end - virtual end address
203 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400204 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400205ENTRY(feroceon_coherent_kern_range)
206 /* FALLTHROUGH */
207
208/*
209 * coherent_user_range(start, end)
210 *
211 * Ensure coherency between the Icache and the Dcache in the
212 * region described by start, end. If you have non-snooping
213 * Harvard caches, you need to implement this function.
214 *
215 * - start - virtual start address
216 * - end - virtual end address
217 */
218ENTRY(feroceon_coherent_user_range)
219 bic r0, r0, #CACHE_DLINESIZE - 1
2201: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
221 mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry
222 add r0, r0, #CACHE_DLINESIZE
223 cmp r0, r1
224 blo 1b
225 mcr p15, 0, r0, c7, c10, 4 @ drain WB
226 mov pc, lr
227
228/*
229 * flush_kern_dcache_page(void *page)
230 *
231 * Ensure no D cache aliasing occurs, either with itself or
232 * the I cache
233 *
234 * - addr - page aligned address
235 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400236 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400237ENTRY(feroceon_flush_kern_dcache_page)
238 add r1, r0, #PAGE_SZ
2391: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry
240 add r0, r0, #CACHE_DLINESIZE
241 cmp r0, r1
242 blo 1b
243 mov r0, #0
244 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
245 mcr p15, 0, r0, c7, c10, 4 @ drain WB
246 mov pc, lr
247
Stanislav Samsonov836a8052008-06-03 11:24:40 +0300248 .align 5
249ENTRY(feroceon_range_flush_kern_dcache_page)
250 mrs r2, cpsr
251 add r1, r0, #PAGE_SZ - CACHE_DLINESIZE @ top addr is inclusive
252 orr r3, r2, #PSR_I_BIT
253 msr cpsr_c, r3 @ disable interrupts
254 mcr p15, 5, r0, c15, c15, 0 @ D clean/inv range start
255 mcr p15, 5, r1, c15, c15, 1 @ D clean/inv range top
256 msr cpsr_c, r2 @ restore interrupts
257 mov r0, #0
258 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
259 mcr p15, 0, r0, c7, c10, 4 @ drain WB
260 mov pc, lr
261
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400262/*
263 * dma_inv_range(start, end)
264 *
265 * Invalidate (discard) the specified virtual address range.
266 * May not write back any entries. If 'start' or 'end'
267 * are not cache line aligned, those lines must be written
268 * back.
269 *
270 * - start - virtual start address
271 * - end - virtual end address
272 *
273 * (same as v4wb)
274 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400275 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400276ENTRY(feroceon_dma_inv_range)
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400277 tst r0, #CACHE_DLINESIZE - 1
Stanislav Samsonov836a8052008-06-03 11:24:40 +0300278 bic r0, r0, #CACHE_DLINESIZE - 1
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400279 mcrne p15, 0, r0, c7, c10, 1 @ clean D entry
280 tst r1, #CACHE_DLINESIZE - 1
281 mcrne p15, 0, r1, c7, c10, 1 @ clean D entry
Assaf Hoffmane50d6402007-10-23 15:14:41 -04002821: mcr p15, 0, r0, c7, c6, 1 @ invalidate D entry
283 add r0, r0, #CACHE_DLINESIZE
284 cmp r0, r1
285 blo 1b
286 mcr p15, 0, r0, c7, c10, 4 @ drain WB
287 mov pc, lr
288
Stanislav Samsonov836a8052008-06-03 11:24:40 +0300289 .align 5
290ENTRY(feroceon_range_dma_inv_range)
291 mrs r2, cpsr
292 tst r0, #CACHE_DLINESIZE - 1
293 mcrne p15, 0, r0, c7, c10, 1 @ clean D entry
294 tst r1, #CACHE_DLINESIZE - 1
295 mcrne p15, 0, r1, c7, c10, 1 @ clean D entry
296 cmp r1, r0
297 subne r1, r1, #1 @ top address is inclusive
298 orr r3, r2, #PSR_I_BIT
299 msr cpsr_c, r3 @ disable interrupts
300 mcr p15, 5, r0, c15, c14, 0 @ D inv range start
301 mcr p15, 5, r1, c15, c14, 1 @ D inv range top
302 msr cpsr_c, r2 @ restore interrupts
303 mov pc, lr
304
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400305/*
306 * dma_clean_range(start, end)
307 *
308 * Clean the specified virtual address range.
309 *
310 * - start - virtual start address
311 * - end - virtual end address
312 *
313 * (same as v4wb)
314 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400315 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400316ENTRY(feroceon_dma_clean_range)
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400317 bic r0, r0, #CACHE_DLINESIZE - 1
3181: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
319 add r0, r0, #CACHE_DLINESIZE
320 cmp r0, r1
321 blo 1b
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400322 mcr p15, 0, r0, c7, c10, 4 @ drain WB
323 mov pc, lr
324
Stanislav Samsonov836a8052008-06-03 11:24:40 +0300325 .align 5
326ENTRY(feroceon_range_dma_clean_range)
327 mrs r2, cpsr
328 cmp r1, r0
329 subne r1, r1, #1 @ top address is inclusive
330 orr r3, r2, #PSR_I_BIT
331 msr cpsr_c, r3 @ disable interrupts
332 mcr p15, 5, r0, c15, c13, 0 @ D clean range start
333 mcr p15, 5, r1, c15, c13, 1 @ D clean range top
334 msr cpsr_c, r2 @ restore interrupts
335 mcr p15, 0, r0, c7, c10, 4 @ drain WB
336 mov pc, lr
337
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400338/*
339 * dma_flush_range(start, end)
340 *
341 * Clean and invalidate the specified virtual address range.
342 *
343 * - start - virtual start address
344 * - end - virtual end address
345 */
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400346 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400347ENTRY(feroceon_dma_flush_range)
348 bic r0, r0, #CACHE_DLINESIZE - 1
Nicolas Pitre6b29e682008-04-25 13:56:32 -04003491: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400350 add r0, r0, #CACHE_DLINESIZE
351 cmp r0, r1
352 blo 1b
353 mcr p15, 0, r0, c7, c10, 4 @ drain WB
354 mov pc, lr
355
Stanislav Samsonov836a8052008-06-03 11:24:40 +0300356 .align 5
357ENTRY(feroceon_range_dma_flush_range)
358 mrs r2, cpsr
359 cmp r1, r0
360 subne r1, r1, #1 @ top address is inclusive
361 orr r3, r2, #PSR_I_BIT
362 msr cpsr_c, r3 @ disable interrupts
363 mcr p15, 5, r0, c15, c15, 0 @ D clean/inv range start
364 mcr p15, 5, r1, c15, c15, 1 @ D clean/inv range top
365 msr cpsr_c, r2 @ restore interrupts
366 mcr p15, 0, r0, c7, c10, 4 @ drain WB
367 mov pc, lr
368
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400369ENTRY(feroceon_cache_fns)
370 .long feroceon_flush_kern_cache_all
371 .long feroceon_flush_user_cache_all
372 .long feroceon_flush_user_cache_range
373 .long feroceon_coherent_kern_range
374 .long feroceon_coherent_user_range
375 .long feroceon_flush_kern_dcache_page
376 .long feroceon_dma_inv_range
377 .long feroceon_dma_clean_range
378 .long feroceon_dma_flush_range
379
Stanislav Samsonov836a8052008-06-03 11:24:40 +0300380ENTRY(feroceon_range_cache_fns)
381 .long feroceon_flush_kern_cache_all
382 .long feroceon_flush_user_cache_all
383 .long feroceon_flush_user_cache_range
384 .long feroceon_coherent_kern_range
385 .long feroceon_coherent_user_range
386 .long feroceon_range_flush_kern_dcache_page
387 .long feroceon_range_dma_inv_range
388 .long feroceon_range_dma_clean_range
389 .long feroceon_range_dma_flush_range
390
Nicolas Pitre6b29e682008-04-25 13:56:32 -0400391 .align 5
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400392ENTRY(cpu_feroceon_dcache_clean_area)
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300393#if defined(CONFIG_CACHE_FEROCEON_L2) && \
394 !defined(CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH)
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200395 mov r2, r0
396 mov r3, r1
397#endif
Assaf Hoffmane50d6402007-10-23 15:14:41 -04003981: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
399 add r0, r0, #CACHE_DLINESIZE
400 subs r1, r1, #CACHE_DLINESIZE
401 bhi 1b
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300402#if defined(CONFIG_CACHE_FEROCEON_L2) && \
403 !defined(CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH)
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +02004041: mcr p15, 1, r2, c15, c9, 1 @ clean L2 entry
405 add r2, r2, #CACHE_DLINESIZE
406 subs r3, r3, #CACHE_DLINESIZE
407 bhi 1b
408#endif
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400409 mcr p15, 0, r0, c7, c10, 4 @ drain WB
410 mov pc, lr
411
412/* =============================== PageTable ============================== */
413
414/*
415 * cpu_feroceon_switch_mm(pgd)
416 *
417 * Set the translation base pointer to be as described by pgd.
418 *
419 * pgd: new page tables
420 */
421 .align 5
422ENTRY(cpu_feroceon_switch_mm)
423#ifdef CONFIG_MMU
Nicolas Pitre6c386e52008-04-24 02:04:54 +0200424 /*
425 * Note: we wish to call __flush_whole_cache but we need to preserve
426 * lr to do so. The only way without touching main memory is to
427 * use r2 which is normally used to test the VM_EXEC flag, and
428 * compensate locally for the skipped ops if it is not set.
429 */
430 mov r2, lr @ abuse r2 to preserve lr
431 bl __flush_whole_cache
432 @ if r2 contains the VM_EXEC bit then the next 2 ops are done already
433 tst r2, #VM_EXEC
434 mcreq p15, 0, ip, c7, c5, 0 @ invalidate I cache
435 mcreq p15, 0, ip, c7, c10, 4 @ drain WB
436
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400437 mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
438 mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
Nicolas Pitre6c386e52008-04-24 02:04:54 +0200439 mov pc, r2
440#else
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400441 mov pc, lr
Nicolas Pitre6c386e52008-04-24 02:04:54 +0200442#endif
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400443
444/*
445 * cpu_feroceon_set_pte_ext(ptep, pte, ext)
446 *
447 * Set a PTE and flush it out
448 */
449 .align 5
450ENTRY(cpu_feroceon_set_pte_ext)
451#ifdef CONFIG_MMU
452 str r1, [r0], #-2048 @ linux version
453
454 eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
455
456 bic r2, r1, #PTE_SMALL_AP_MASK
457 bic r2, r2, #PTE_TYPE_MASK
458 orr r2, r2, #PTE_TYPE_SMALL
459
460 tst r1, #L_PTE_USER @ User?
461 orrne r2, r2, #PTE_SMALL_AP_URO_SRW
462
463 tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty?
464 orreq r2, r2, #PTE_SMALL_AP_UNO_SRW
465
466 tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young?
467 movne r2, #0
468
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400469 str r2, [r0] @ hardware version
470 mov r0, r0
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400471 mcr p15, 0, r0, c7, c10, 1 @ clean D entry
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300472#if defined(CONFIG_CACHE_FEROCEON_L2) && \
473 !defined(CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH)
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200474 mcr p15, 1, r0, c15, c9, 1 @ clean L2 entry
475#endif
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400476 mcr p15, 0, r0, c7, c10, 4 @ drain WB
477#endif
478 mov pc, lr
479
480 __INIT
481
482 .type __feroceon_setup, #function
483__feroceon_setup:
484 mov r0, #0
485 mcr p15, 0, r0, c7, c7 @ invalidate I,D caches on v4
486 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer on v4
487#ifdef CONFIG_MMU
488 mcr p15, 0, r0, c8, c7 @ invalidate I,D TLBs on v4
489#endif
490
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400491 adr r5, feroceon_crval
492 ldmia r5, {r5, r6}
493 mrc p15, 0, r0, c1, c0 @ get control register v4
494 bic r0, r0, r5
495 orr r0, r0, r6
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400496 mov pc, lr
497 .size __feroceon_setup, . - __feroceon_setup
498
499 /*
Saeed Bishara188237e2008-07-02 06:06:32 -1100500 * B
501 * R P
502 * .RVI UFRS BLDP WCAM
503 * .011 .001 ..11 0101
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400504 *
505 */
506 .type feroceon_crval, #object
507feroceon_crval:
Saeed Bishara188237e2008-07-02 06:06:32 -1100508 crval clear=0x0000773f, mmuset=0x00003135, ucset=0x00001134
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400509
510 __INITDATA
511
512/*
513 * Purpose : Function pointers used to access above functions - all calls
514 * come through these
515 */
516 .type feroceon_processor_functions, #object
517feroceon_processor_functions:
518 .word v5t_early_abort
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100519 .word pabort_noifar
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400520 .word cpu_feroceon_proc_init
521 .word cpu_feroceon_proc_fin
522 .word cpu_feroceon_reset
523 .word cpu_feroceon_do_idle
524 .word cpu_feroceon_dcache_clean_area
525 .word cpu_feroceon_switch_mm
526 .word cpu_feroceon_set_pte_ext
527 .size feroceon_processor_functions, . - feroceon_processor_functions
528
529 .section ".rodata"
530
531 .type cpu_arch_name, #object
532cpu_arch_name:
533 .asciz "armv5te"
534 .size cpu_arch_name, . - cpu_arch_name
535
536 .type cpu_elf_name, #object
537cpu_elf_name:
538 .asciz "v5"
539 .size cpu_elf_name, . - cpu_elf_name
540
541 .type cpu_feroceon_name, #object
542cpu_feroceon_name:
543 .asciz "Feroceon"
544 .size cpu_feroceon_name, . - cpu_feroceon_name
545
Lennert Buytenhekee0dd842008-04-11 23:08:26 +0200546 .type cpu_88fr531_name, #object
547cpu_88fr531_name:
548 .asciz "Feroceon 88FR531-vd"
549 .size cpu_88fr531_name, . - cpu_88fr531_name
550
Lennert Buytenhek0a17c7b2008-06-22 22:45:08 +0200551 .type cpu_88fr571_name, #object
552cpu_88fr571_name:
553 .asciz "Feroceon 88FR571-vd"
554 .size cpu_88fr571_name, . - cpu_88fr571_name
555
Lennert Buytenhek9c2af6c2008-06-22 22:45:05 +0200556 .type cpu_88fr131_name, #object
557cpu_88fr131_name:
558 .asciz "Feroceon 88FR131"
559 .size cpu_88fr131_name, . - cpu_88fr131_name
560
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400561 .align
562
563 .section ".proc.info.init", #alloc, #execinstr
564
Tzachi Perelsteind910a0a2007-11-06 10:35:40 +0200565#ifdef CONFIG_CPU_FEROCEON_OLD_ID
566 .type __feroceon_old_id_proc_info,#object
567__feroceon_old_id_proc_info:
Ke Weiab6d15d2008-06-22 22:45:00 +0200568 .long 0x41009260
569 .long 0xff00fff0
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200570 .long PMD_TYPE_SECT | \
Tzachi Perelsteind910a0a2007-11-06 10:35:40 +0200571 PMD_SECT_BUFFERABLE | \
572 PMD_SECT_CACHEABLE | \
573 PMD_BIT4 | \
574 PMD_SECT_AP_WRITE | \
575 PMD_SECT_AP_READ
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200576 .long PMD_TYPE_SECT | \
Tzachi Perelsteind910a0a2007-11-06 10:35:40 +0200577 PMD_BIT4 | \
578 PMD_SECT_AP_WRITE | \
579 PMD_SECT_AP_READ
580 b __feroceon_setup
581 .long cpu_arch_name
582 .long cpu_elf_name
583 .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
584 .long cpu_feroceon_name
585 .long feroceon_processor_functions
586 .long v4wbi_tlb_fns
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400587 .long feroceon_user_fns
Tzachi Perelsteind910a0a2007-11-06 10:35:40 +0200588 .long feroceon_cache_fns
589 .size __feroceon_old_id_proc_info, . - __feroceon_old_id_proc_info
590#endif
591
Lennert Buytenhekee0dd842008-04-11 23:08:26 +0200592 .type __88fr531_proc_info,#object
593__88fr531_proc_info:
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400594 .long 0x56055310
595 .long 0xfffffff0
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200596 .long PMD_TYPE_SECT | \
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400597 PMD_SECT_BUFFERABLE | \
598 PMD_SECT_CACHEABLE | \
599 PMD_BIT4 | \
600 PMD_SECT_AP_WRITE | \
601 PMD_SECT_AP_READ
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200602 .long PMD_TYPE_SECT | \
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400603 PMD_BIT4 | \
604 PMD_SECT_AP_WRITE | \
605 PMD_SECT_AP_READ
606 b __feroceon_setup
607 .long cpu_arch_name
608 .long cpu_elf_name
609 .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
Lennert Buytenhekee0dd842008-04-11 23:08:26 +0200610 .long cpu_88fr531_name
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400611 .long feroceon_processor_functions
612 .long v4wbi_tlb_fns
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400613 .long feroceon_user_fns
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400614 .long feroceon_cache_fns
Lennert Buytenhekee0dd842008-04-11 23:08:26 +0200615 .size __88fr531_proc_info, . - __88fr531_proc_info
Lennert Buytenhek9c2af6c2008-06-22 22:45:05 +0200616
Lennert Buytenhek0a17c7b2008-06-22 22:45:08 +0200617 .type __88fr571_proc_info,#object
618__88fr571_proc_info:
619 .long 0x56155710
620 .long 0xfffffff0
621 .long PMD_TYPE_SECT | \
622 PMD_SECT_BUFFERABLE | \
623 PMD_SECT_CACHEABLE | \
624 PMD_BIT4 | \
625 PMD_SECT_AP_WRITE | \
626 PMD_SECT_AP_READ
627 .long PMD_TYPE_SECT | \
628 PMD_BIT4 | \
629 PMD_SECT_AP_WRITE | \
630 PMD_SECT_AP_READ
631 b __feroceon_setup
632 .long cpu_arch_name
633 .long cpu_elf_name
634 .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
635 .long cpu_88fr571_name
636 .long feroceon_processor_functions
637 .long v4wbi_tlb_fns
638 .long feroceon_user_fns
639 .long feroceon_range_cache_fns
640 .size __88fr571_proc_info, . - __88fr571_proc_info
641
Lennert Buytenhek9c2af6c2008-06-22 22:45:05 +0200642 .type __88fr131_proc_info,#object
643__88fr131_proc_info:
644 .long 0x56251310
645 .long 0xfffffff0
646 .long PMD_TYPE_SECT | \
647 PMD_SECT_BUFFERABLE | \
648 PMD_SECT_CACHEABLE | \
649 PMD_BIT4 | \
650 PMD_SECT_AP_WRITE | \
651 PMD_SECT_AP_READ
652 .long PMD_TYPE_SECT | \
653 PMD_BIT4 | \
654 PMD_SECT_AP_WRITE | \
655 PMD_SECT_AP_READ
656 b __feroceon_setup
657 .long cpu_arch_name
658 .long cpu_elf_name
659 .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
660 .long cpu_88fr131_name
661 .long feroceon_processor_functions
662 .long v4wbi_tlb_fns
663 .long feroceon_user_fns
664 .long feroceon_range_cache_fns
665 .size __88fr131_proc_info, . - __88fr131_proc_info