Merge remote-tracking branch 'spi/topic/core' into spi-next
[deliverable/linux.git] / arch / arm / mm / proc-v7.S
CommitLineData
bbe88886
CM
1/*
2 * linux/arch/arm/mm/proc-v7.S
3 *
4 * Copyright (C) 2001 Deep Blue Solutions Ltd.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * This is the "shell" of the ARMv7 processor support.
11 */
991da17e 12#include <linux/init.h>
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CM
13#include <linux/linkage.h>
14#include <asm/assembler.h>
15#include <asm/asm-offsets.h>
5ec9407d 16#include <asm/hwcap.h>
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CM
17#include <asm/pgtable-hwdef.h>
18#include <asm/pgtable.h>
19
20#include "proc-macros.S"
21
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CM
22#ifdef CONFIG_ARM_LPAE
23#include "proc-v7-3level.S"
24#else
8d2cd3a3 25#include "proc-v7-2level.S"
1b6ba46b 26#endif
73b63efa 27
bbe88886 28ENTRY(cpu_v7_proc_init)
6ebbf2ce 29 ret lr
93ed3970 30ENDPROC(cpu_v7_proc_init)
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31
32ENTRY(cpu_v7_proc_fin)
1f667c69
TL
33 mrc p15, 0, r0, c1, c0, 0 @ ctrl register
34 bic r0, r0, #0x1000 @ ...i............
35 bic r0, r0, #0x0006 @ .............ca.
36 mcr p15, 0, r0, c1, c0, 0 @ disable caches
6ebbf2ce 37 ret lr
93ed3970 38ENDPROC(cpu_v7_proc_fin)
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CM
39
40/*
41 * cpu_v7_reset(loc)
42 *
43 * Perform a soft reset of the system. Put the CPU into the
44 * same state as it would be if it had been reset, and branch
45 * to what would be the reset vector.
46 *
47 * - loc - location to jump to for soft reset
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WD
48 *
49 * This code must be executed using a flat identity mapping with
50 * caches disabled.
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CM
51 */
52 .align 5
1a4baafa 53 .pushsection .idmap.text, "ax"
bbe88886 54ENTRY(cpu_v7_reset)
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WD
55 mrc p15, 0, r1, c1, c0, 0 @ ctrl register
56 bic r1, r1, #0x1 @ ...............m
0f81bb6b 57 THUMB( bic r1, r1, #1 << 30 ) @ SCTLR.TE (Thumb exceptions)
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WD
58 mcr p15, 0, r1, c1, c0, 0 @ disable MMU
59 isb
153cd8e8 60 bx r0
93ed3970 61ENDPROC(cpu_v7_reset)
1a4baafa 62 .popsection
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CM
63
64/*
65 * cpu_v7_do_idle()
66 *
67 * Idle the processor (eg, wait for interrupt).
68 *
69 * IRQs are already disabled.
70 */
71ENTRY(cpu_v7_do_idle)
8553cb67 72 dsb @ WFI may enter a low-power mode
000b5025 73 wfi
6ebbf2ce 74 ret lr
93ed3970 75ENDPROC(cpu_v7_do_idle)
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76
77ENTRY(cpu_v7_dcache_clean_area)
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WD
78 ALT_SMP(W(nop)) @ MP extensions imply L1 PTW
79 ALT_UP_B(1f)
6ebbf2ce 80 ret lr
bf3f0f33
WD
811: dcache_line_size r2, r3
822: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
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83 add r0, r0, r2
84 subs r1, r1, r2
bf3f0f33 85 bhi 2b
6abdd491 86 dsb ishst
6ebbf2ce 87 ret lr
93ed3970 88ENDPROC(cpu_v7_dcache_clean_area)
bbe88886 89
78a8f3c3 90 string cpu_v7_name, "ARMv7 Processor"
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91 .align
92
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93/* Suspend/resume support: derived from arch/arm/mach-s5pv210/sleep.S */
94.globl cpu_v7_suspend_size
f3db3f43 95.equ cpu_v7_suspend_size, 4 * 9
15e0d9e3 96#ifdef CONFIG_ARM_CPU_SUSPEND
f6b0fa02 97ENTRY(cpu_v7_do_suspend)
de8e71ca 98 stmfd sp!, {r4 - r10, lr}
f6b0fa02 99 mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID
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100 mrc p15, 0, r5, c13, c0, 3 @ User r/o thread ID
101 stmia r0!, {r4 - r5}
aa1aadc3 102#ifdef CONFIG_MMU
f6b0fa02 103 mrc p15, 0, r6, c3, c0, 0 @ Domain ID
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MS
104#ifdef CONFIG_ARM_LPAE
105 mrrc p15, 1, r5, r7, c2 @ TTB 1
106#else
de8e71ca 107 mrc p15, 0, r7, c2, c0, 1 @ TTB 1
f3db3f43 108#endif
1b6ba46b 109 mrc p15, 0, r11, c2, c0, 2 @ TTB control register
aa1aadc3 110#endif
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RK
111 mrc p15, 0, r8, c1, c0, 0 @ Control register
112 mrc p15, 0, r9, c1, c0, 1 @ Auxiliary control register
113 mrc p15, 0, r10, c1, c0, 2 @ Co-processor access control
f3db3f43 114 stmia r0, {r5 - r11}
de8e71ca 115 ldmfd sp!, {r4 - r10, pc}
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RK
116ENDPROC(cpu_v7_do_suspend)
117
118ENTRY(cpu_v7_do_resume)
119 mov ip, #0
f6b0fa02 120 mcr p15, 0, ip, c7, c5, 0 @ invalidate I cache
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121 mcr p15, 0, ip, c13, c0, 1 @ set reserved context ID
122 ldmia r0!, {r4 - r5}
f6b0fa02 123 mcr p15, 0, r4, c13, c0, 0 @ FCSE/PID
1aede681 124 mcr p15, 0, r5, c13, c0, 3 @ User r/o thread ID
f3db3f43 125 ldmia r0, {r5 - r11}
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WD
126#ifdef CONFIG_MMU
127 mcr p15, 0, ip, c8, c7, 0 @ invalidate TLBs
f6b0fa02 128 mcr p15, 0, r6, c3, c0, 0 @ Domain ID
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129#ifdef CONFIG_ARM_LPAE
130 mcrr p15, 0, r1, ip, c2 @ TTB 0
131 mcrr p15, 1, r5, r7, c2 @ TTB 1
132#else
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RK
133 ALT_SMP(orr r1, r1, #TTB_FLAGS_SMP)
134 ALT_UP(orr r1, r1, #TTB_FLAGS_UP)
135 mcr p15, 0, r1, c2, c0, 0 @ TTB 0
136 mcr p15, 0, r7, c2, c0, 1 @ TTB 1
f3db3f43 137#endif
1b6ba46b 138 mcr p15, 0, r11, c2, c0, 2 @ TTB control register
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RK
139 ldr r4, =PRRR @ PRRR
140 ldr r5, =NMRR @ NMRR
141 mcr p15, 0, r4, c10, c2, 0 @ write PRRR
142 mcr p15, 0, r5, c10, c2, 1 @ write NMRR
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WD
143#endif /* CONFIG_MMU */
144 mrc p15, 0, r4, c1, c0, 1 @ Read Auxiliary control register
145 teq r4, r9 @ Is it already set?
146 mcrne p15, 0, r9, c1, c0, 1 @ No, so write it
147 mcr p15, 0, r10, c1, c0, 2 @ Co-processor access control
f6b0fa02 148 isb
f35235a3 149 dsb
de8e71ca 150 mov r0, r8 @ control register
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151 b cpu_resume_mmu
152ENDPROC(cpu_v7_do_resume)
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GC
153#endif
154
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155/*
156 * Cortex-A9 processor functions
157 */
158 globl_equ cpu_ca9mp_proc_init, cpu_v7_proc_init
159 globl_equ cpu_ca9mp_proc_fin, cpu_v7_proc_fin
160 globl_equ cpu_ca9mp_reset, cpu_v7_reset
161 globl_equ cpu_ca9mp_do_idle, cpu_v7_do_idle
162 globl_equ cpu_ca9mp_dcache_clean_area, cpu_v7_dcache_clean_area
163 globl_equ cpu_ca9mp_switch_mm, cpu_v7_switch_mm
164 globl_equ cpu_ca9mp_set_pte_ext, cpu_v7_set_pte_ext
165.globl cpu_ca9mp_suspend_size
166.equ cpu_ca9mp_suspend_size, cpu_v7_suspend_size + 4 * 2
167#ifdef CONFIG_ARM_CPU_SUSPEND
168ENTRY(cpu_ca9mp_do_suspend)
169 stmfd sp!, {r4 - r5}
170 mrc p15, 0, r4, c15, c0, 1 @ Diagnostic register
171 mrc p15, 0, r5, c15, c0, 0 @ Power register
172 stmia r0!, {r4 - r5}
173 ldmfd sp!, {r4 - r5}
174 b cpu_v7_do_suspend
175ENDPROC(cpu_ca9mp_do_suspend)
176
177ENTRY(cpu_ca9mp_do_resume)
178 ldmia r0!, {r4 - r5}
179 mrc p15, 0, r10, c15, c0, 1 @ Read Diagnostic register
180 teq r4, r10 @ Already restored?
181 mcrne p15, 0, r4, c15, c0, 1 @ No, so restore it
182 mrc p15, 0, r10, c15, c0, 0 @ Read Power register
183 teq r5, r10 @ Already restored?
184 mcrne p15, 0, r5, c15, c0, 0 @ No, so restore it
185 b cpu_v7_do_resume
186ENDPROC(cpu_ca9mp_do_resume)
187#endif
188
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GC
189#ifdef CONFIG_CPU_PJ4B
190 globl_equ cpu_pj4b_switch_mm, cpu_v7_switch_mm
191 globl_equ cpu_pj4b_set_pte_ext, cpu_v7_set_pte_ext
192 globl_equ cpu_pj4b_proc_init, cpu_v7_proc_init
193 globl_equ cpu_pj4b_proc_fin, cpu_v7_proc_fin
194 globl_equ cpu_pj4b_reset, cpu_v7_reset
195#ifdef CONFIG_PJ4B_ERRATA_4742
196ENTRY(cpu_pj4b_do_idle)
197 dsb @ WFI may enter a low-power mode
198 wfi
199 dsb @barrier
6ebbf2ce 200 ret lr
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GC
201ENDPROC(cpu_pj4b_do_idle)
202#else
203 globl_equ cpu_pj4b_do_idle, cpu_v7_do_idle
204#endif
205 globl_equ cpu_pj4b_dcache_clean_area, cpu_v7_dcache_clean_area
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GC
206#ifdef CONFIG_ARM_CPU_SUSPEND
207ENTRY(cpu_pj4b_do_suspend)
208 stmfd sp!, {r6 - r10}
209 mrc p15, 1, r6, c15, c1, 0 @ save CP15 - extra features
210 mrc p15, 1, r7, c15, c2, 0 @ save CP15 - Aux Func Modes Ctrl 0
211 mrc p15, 1, r8, c15, c1, 2 @ save CP15 - Aux Debug Modes Ctrl 2
212 mrc p15, 1, r9, c15, c1, 1 @ save CP15 - Aux Debug Modes Ctrl 1
213 mrc p15, 0, r10, c9, c14, 0 @ save CP15 - PMC
214 stmia r0!, {r6 - r10}
215 ldmfd sp!, {r6 - r10}
216 b cpu_v7_do_suspend
217ENDPROC(cpu_pj4b_do_suspend)
218
219ENTRY(cpu_pj4b_do_resume)
220 ldmia r0!, {r6 - r10}
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SG
221 mcr p15, 1, r6, c15, c1, 0 @ restore CP15 - extra features
222 mcr p15, 1, r7, c15, c2, 0 @ restore CP15 - Aux Func Modes Ctrl 0
223 mcr p15, 1, r8, c15, c1, 2 @ restore CP15 - Aux Debug Modes Ctrl 2
224 mcr p15, 1, r9, c15, c1, 1 @ restore CP15 - Aux Debug Modes Ctrl 1
225 mcr p15, 0, r10, c9, c14, 0 @ restore CP15 - PMC
16c79a37
GC
226 b cpu_v7_do_resume
227ENDPROC(cpu_pj4b_do_resume)
228#endif
229.globl cpu_pj4b_suspend_size
7ca791c5 230.equ cpu_pj4b_suspend_size, cpu_v7_suspend_size + 4 * 5
3e0a07f8 231
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RK
232#endif
233
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CM
234/*
235 * __v7_setup
236 *
237 * Initialise TLB, Caches, and MMU state ready to switch the MMU
238 * on. Return in r0 the new CP15 C1 control register setting.
239 *
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CM
240 * This should be able to cover all ARMv7 cores.
241 *
242 * It is assumed that:
243 * - cache type register is implemented
244 */
15eb169b 245__v7_ca5mp_setup:
14eff181 246__v7_ca9mp_setup:
c90ad5c9
JA
247__v7_cr7mp_setup:
248 mov r10, #(1 << 0) @ Cache/TLB ops broadcasting
7665d9d2 249 b 1f
b4244738 250__v7_ca7mp_setup:
ddb2ff73 251__v7_ca12mp_setup:
7665d9d2 252__v7_ca15mp_setup:
c51e78ed 253__v7_b15mp_setup:
cd000cf6 254__v7_ca17mp_setup:
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WD
255 mov r10, #0
2561:
73b63efa 257#ifdef CONFIG_SMP
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RK
258 ALT_SMP(mrc p15, 0, r0, c1, c0, 1)
259 ALT_UP(mov r0, #(1 << 6)) @ fake it for UP
1b3a02eb 260 tst r0, #(1 << 6) @ SMP/nAMP mode enabled?
7665d9d2
WD
261 orreq r0, r0, #(1 << 6) @ Enable SMP/nAMP mode
262 orreq r0, r0, r10 @ Enable CPU-specific SMP bits
263 mcreq p15, 0, r0, c1, c0, 1
73b63efa 264#endif
d106de38 265 b __v7_setup
de490193
GC
266
267__v7_pj4b_setup:
268#ifdef CONFIG_CPU_PJ4B
269
270/* Auxiliary Debug Modes Control 1 Register */
271#define PJ4B_STATIC_BP (1 << 2) /* Enable Static BP */
272#define PJ4B_INTER_PARITY (1 << 8) /* Disable Internal Parity Handling */
de490193
GC
273#define PJ4B_CLEAN_LINE (1 << 16) /* Disable data transfer for clean line */
274
275/* Auxiliary Debug Modes Control 2 Register */
276#define PJ4B_FAST_LDR (1 << 23) /* Disable fast LDR */
277#define PJ4B_SNOOP_DATA (1 << 25) /* Do not interleave write and snoop data */
278#define PJ4B_CWF (1 << 27) /* Disable Critical Word First feature */
279#define PJ4B_OUTSDNG_NC (1 << 29) /* Disable outstanding non cacheable rqst */
280#define PJ4B_L1_REP_RR (1 << 30) /* L1 replacement - Strict round robin */
281#define PJ4B_AUX_DBG_CTRL2 (PJ4B_SNOOP_DATA | PJ4B_CWF |\
282 PJ4B_OUTSDNG_NC | PJ4B_L1_REP_RR)
283
284/* Auxiliary Functional Modes Control Register 0 */
285#define PJ4B_SMP_CFB (1 << 1) /* Set SMP mode. Join the coherency fabric */
286#define PJ4B_L1_PAR_CHK (1 << 2) /* Support L1 parity checking */
287#define PJ4B_BROADCAST_CACHE (1 << 8) /* Broadcast Cache and TLB maintenance */
288
289/* Auxiliary Debug Modes Control 0 Register */
290#define PJ4B_WFI_WFE (1 << 22) /* WFI/WFE - serve the DVM and back to idle */
291
292 /* Auxiliary Debug Modes Control 1 Register */
293 mrc p15, 1, r0, c15, c1, 1
294 orr r0, r0, #PJ4B_CLEAN_LINE
de490193
GC
295 orr r0, r0, #PJ4B_INTER_PARITY
296 bic r0, r0, #PJ4B_STATIC_BP
297 mcr p15, 1, r0, c15, c1, 1
298
299 /* Auxiliary Debug Modes Control 2 Register */
300 mrc p15, 1, r0, c15, c1, 2
301 bic r0, r0, #PJ4B_FAST_LDR
302 orr r0, r0, #PJ4B_AUX_DBG_CTRL2
303 mcr p15, 1, r0, c15, c1, 2
304
305 /* Auxiliary Functional Modes Control Register 0 */
306 mrc p15, 1, r0, c15, c2, 0
307#ifdef CONFIG_SMP
308 orr r0, r0, #PJ4B_SMP_CFB
309#endif
310 orr r0, r0, #PJ4B_L1_PAR_CHK
311 orr r0, r0, #PJ4B_BROADCAST_CACHE
312 mcr p15, 1, r0, c15, c2, 0
313
314 /* Auxiliary Debug Modes Control 0 Register */
315 mrc p15, 1, r0, c15, c1, 0
316 orr r0, r0, #PJ4B_WFI_WFE
317 mcr p15, 1, r0, c15, c1, 0
318
319#endif /* CONFIG_CPU_PJ4B */
320
14eff181 321__v7_setup:
bbe88886
CM
322 adr r12, __v7_setup_stack @ the local stack
323 stmia r12, {r0-r5, r7, r9, r11, lr}
6323fa22 324 bl v7_flush_dcache_louis
bbe88886 325 ldmia r12, {r0-r5, r7, r9, r11, lr}
1946d6ef
RK
326
327 mrc p15, 0, r0, c0, c0, 0 @ read main ID register
328 and r10, r0, #0xff000000 @ ARM?
329 teq r10, #0x41000000
9f05027c 330 bne 3f
1946d6ef
RK
331 and r5, r0, #0x00f00000 @ variant
332 and r6, r0, #0x0000000f @ revision
6491848d
WD
333 orr r6, r6, r5, lsr #20-4 @ combine variant and revision
334 ubfx r0, r0, #4, #12 @ primary part number
1946d6ef 335
6491848d
WD
336 /* Cortex-A8 Errata */
337 ldr r10, =0x00000c08 @ Cortex-A8 primary part number
338 teq r0, r10
339 bne 2f
62e4d357
RH
340#if defined(CONFIG_ARM_ERRATA_430973) && !defined(CONFIG_ARCH_MULTIPLATFORM)
341
1946d6ef
RK
342 teq r5, #0x00100000 @ only present in r1p*
343 mrceq p15, 0, r10, c1, c0, 1 @ read aux control register
344 orreq r10, r10, #(1 << 6) @ set IBE to 1
345 mcreq p15, 0, r10, c1, c0, 1 @ write aux control register
855c551f
CM
346#endif
347#ifdef CONFIG_ARM_ERRATA_458693
6491848d 348 teq r6, #0x20 @ only present in r2p0
1946d6ef
RK
349 mrceq p15, 0, r10, c1, c0, 1 @ read aux control register
350 orreq r10, r10, #(1 << 5) @ set L1NEON to 1
351 orreq r10, r10, #(1 << 9) @ set PLDNOP to 1
352 mcreq p15, 0, r10, c1, c0, 1 @ write aux control register
0516e464
CM
353#endif
354#ifdef CONFIG_ARM_ERRATA_460075
6491848d 355 teq r6, #0x20 @ only present in r2p0
1946d6ef
RK
356 mrceq p15, 1, r10, c9, c0, 2 @ read L2 cache aux ctrl register
357 tsteq r10, #1 << 22
358 orreq r10, r10, #(1 << 22) @ set the Write Allocate disable bit
359 mcreq p15, 1, r10, c9, c0, 2 @ write the L2 cache aux ctrl register
7ce236fc 360#endif
9f05027c
WD
361 b 3f
362
363 /* Cortex-A9 Errata */
3642: ldr r10, =0x00000c09 @ Cortex-A9 primary part number
365 teq r0, r10
366 bne 3f
367#ifdef CONFIG_ARM_ERRATA_742230
368 cmp r6, #0x22 @ only present up to r2p2
369 mrcle p15, 0, r10, c15, c0, 1 @ read diagnostic register
370 orrle r10, r10, #1 << 4 @ set bit #4
371 mcrle p15, 0, r10, c15, c0, 1 @ write diagnostic register
372#endif
a672e99b
WD
373#ifdef CONFIG_ARM_ERRATA_742231
374 teq r6, #0x20 @ present in r2p0
375 teqne r6, #0x21 @ present in r2p1
376 teqne r6, #0x22 @ present in r2p2
377 mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register
378 orreq r10, r10, #1 << 12 @ set bit #12
379 orreq r10, r10, #1 << 22 @ set bit #22
380 mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register
381#endif
475d92fc 382#ifdef CONFIG_ARM_ERRATA_743622
efbc74ac 383 teq r5, #0x00200000 @ only present in r2p*
475d92fc
WD
384 mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register
385 orreq r10, r10, #1 << 6 @ set bit #6
386 mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register
387#endif
ba90c516
DM
388#if defined(CONFIG_ARM_ERRATA_751472) && defined(CONFIG_SMP)
389 ALT_SMP(cmp r6, #0x30) @ present prior to r3p0
390 ALT_UP_B(1f)
9a27c27c
WD
391 mrclt p15, 0, r10, c15, c0, 1 @ read diagnostic register
392 orrlt r10, r10, #1 << 11 @ set bit #11
393 mcrlt p15, 0, r10, c15, c0, 1 @ write diagnostic register
ba90c516 3941:
9a27c27c 395#endif
1946d6ef 396
84b6504f
WD
397 /* Cortex-A15 Errata */
3983: ldr r10, =0x00000c0f @ Cortex-A15 primary part number
399 teq r0, r10
400 bne 4f
401
402#ifdef CONFIG_ARM_ERRATA_773022
403 cmp r6, #0x4 @ only present up to r0p4
404 mrcle p15, 0, r10, c1, c0, 1 @ read aux control register
405 orrle r10, r10, #1 << 1 @ disable loop buffer
406 mcrle p15, 0, r10, c1, c0, 1 @ write aux control register
407#endif
408
4094: mov r10, #0
bbe88886 410 mcr p15, 0, r10, c7, c5, 0 @ I+BTB cache invalidate
2eb8c82b 411#ifdef CONFIG_MMU
bbe88886 412 mcr p15, 0, r10, c8, c7, 0 @ invalidate I + D TLBs
8d2cd3a3 413 v7_ttb_setup r10, r4, r8, r5 @ TTBCR, TTBRx setup
f6b0fa02
RK
414 ldr r5, =PRRR @ PRRR
415 ldr r6, =NMRR @ NMRR
3f69c0c1
RK
416 mcr p15, 0, r5, c10, c2, 0 @ write PRRR
417 mcr p15, 0, r6, c10, c2, 1 @ write NMRR
078c0454 418#endif
bae0ca2b 419 dsb @ Complete invalidations
078c0454
JA
420#ifndef CONFIG_ARM_THUMBEE
421 mrc p15, 0, r0, c0, c1, 0 @ read ID_PFR0 for ThumbEE
422 and r0, r0, #(0xf << 12) @ ThumbEE enabled field
423 teq r0, #(1 << 12) @ check if ThumbEE is present
424 bne 1f
425 mov r5, #0
426 mcr p14, 6, r5, c1, c0, 0 @ Initialize TEEHBR to 0
427 mrc p14, 6, r0, c0, c0, 0 @ load TEECR
428 orr r0, r0, #1 @ set the 1st bit in order to
429 mcr p14, 6, r0, c0, c0, 0 @ stop userspace TEEHBR access
4301:
bdaaaec3 431#endif
2eb8c82b
CM
432 adr r5, v7_crval
433 ldmia r5, {r5, r6}
457c2403 434 ARM_BE8(orr r6, r6, #1 << 25) @ big-endian page tables
64d2dc38
LL
435#ifdef CONFIG_SWP_EMULATE
436 orr r5, r5, #(1 << 10) @ set SW bit in "clear"
437 bic r6, r6, #(1 << 10) @ clear it in "mmuset"
26584853 438#endif
2eb8c82b
CM
439 mrc p15, 0, r0, c1, c0, 0 @ read control register
440 bic r0, r0, r5 @ clear bits them
441 orr r0, r0, r6 @ set them
347c8b70 442 THUMB( orr r0, r0, #1 << 30 ) @ Thumb exceptions
6ebbf2ce 443 ret lr @ return to head.S:__ret
93ed3970 444ENDPROC(__v7_setup)
bbe88886 445
8d2cd3a3 446 .align 2
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447__v7_setup_stack:
448 .space 4 * 11 @ 11 registers
449
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450 __INITDATA
451
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452 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
453 define_processor_functions v7, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
ddd0c530 454 define_processor_functions ca9mp, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
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455#ifdef CONFIG_CPU_PJ4B
456 define_processor_functions pj4b, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
457#endif
bbe88886 458
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459 .section ".rodata"
460
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461 string cpu_arch_name, "armv7"
462 string cpu_elf_name, "v7"
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463 .align
464
465 .section ".proc.info.init", #alloc, #execinstr
466
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467 /*
468 * Standard v7 proc info content
469 */
3e0a07f8 470.macro __v7_proc initfunc, mm_mmuflags = 0, io_mmuflags = 0, hwcaps = 0, proc_fns = v7_processor_functions
dc939cd8 471 ALT_SMP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | \
1b6ba46b 472 PMD_SECT_AF | PMD_FLAGS_SMP | \mm_mmuflags)
dc939cd8 473 ALT_UP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | \
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474 PMD_SECT_AF | PMD_FLAGS_UP | \mm_mmuflags)
475 .long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | \
476 PMD_SECT_AP_READ | PMD_SECT_AF | \io_mmuflags
dc939cd8 477 W(b) \initfunc
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478 .long cpu_arch_name
479 .long cpu_elf_name
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480 .long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB | HWCAP_FAST_MULT | \
481 HWCAP_EDSP | HWCAP_TLS | \hwcaps
14eff181 482 .long cpu_v7_name
3e0a07f8 483 .long \proc_fns
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484 .long v7wbi_tlb_fns
485 .long v6_user_fns
486 .long v7_cache_fns
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487.endm
488
1b6ba46b 489#ifndef CONFIG_ARM_LPAE
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490 /*
491 * ARM Ltd. Cortex A5 processor.
492 */
493 .type __v7_ca5mp_proc_info, #object
494__v7_ca5mp_proc_info:
495 .long 0x410fc050
496 .long 0xff0ffff0
497 __v7_proc __v7_ca5mp_setup
498 .size __v7_ca5mp_proc_info, . - __v7_ca5mp_proc_info
499
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500 /*
501 * ARM Ltd. Cortex A9 processor.
502 */
503 .type __v7_ca9mp_proc_info, #object
504__v7_ca9mp_proc_info:
505 .long 0x410fc090
506 .long 0xff0ffff0
ddd0c530 507 __v7_proc __v7_ca9mp_setup, proc_fns = ca9mp_processor_functions
14eff181 508 .size __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info
de490193 509
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510#endif /* CONFIG_ARM_LPAE */
511
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512 /*
513 * Marvell PJ4B processor.
514 */
3e0a07f8 515#ifdef CONFIG_CPU_PJ4B
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516 .type __v7_pj4b_proc_info, #object
517__v7_pj4b_proc_info:
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518 .long 0x560f5800
519 .long 0xff0fff00
3e0a07f8 520 __v7_proc __v7_pj4b_setup, proc_fns = pj4b_processor_functions
de490193 521 .size __v7_pj4b_proc_info, . - __v7_pj4b_proc_info
3e0a07f8 522#endif
14eff181 523
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524 /*
525 * ARM Ltd. Cortex R7 processor.
526 */
527 .type __v7_cr7mp_proc_info, #object
528__v7_cr7mp_proc_info:
529 .long 0x410fc170
530 .long 0xff0ffff0
531 __v7_proc __v7_cr7mp_setup
532 .size __v7_cr7mp_proc_info, . - __v7_cr7mp_proc_info
533
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534 /*
535 * ARM Ltd. Cortex A7 processor.
536 */
537 .type __v7_ca7mp_proc_info, #object
538__v7_ca7mp_proc_info:
539 .long 0x410fc070
540 .long 0xff0ffff0
8164f7af 541 __v7_proc __v7_ca7mp_setup
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542 .size __v7_ca7mp_proc_info, . - __v7_ca7mp_proc_info
543
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544 /*
545 * ARM Ltd. Cortex A12 processor.
546 */
547 .type __v7_ca12mp_proc_info, #object
548__v7_ca12mp_proc_info:
549 .long 0x410fc0d0
550 .long 0xff0ffff0
551 __v7_proc __v7_ca12mp_setup
552 .size __v7_ca12mp_proc_info, . - __v7_ca12mp_proc_info
553
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554 /*
555 * ARM Ltd. Cortex A15 processor.
556 */
557 .type __v7_ca15mp_proc_info, #object
558__v7_ca15mp_proc_info:
559 .long 0x410fc0f0
560 .long 0xff0ffff0
8164f7af 561 __v7_proc __v7_ca15mp_setup
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562 .size __v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info
563
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564 /*
565 * Broadcom Corporation Brahma-B15 processor.
566 */
567 .type __v7_b15mp_proc_info, #object
568__v7_b15mp_proc_info:
569 .long 0x420f00f0
570 .long 0xff0ffff0
fbf10641 571 __v7_proc __v7_b15mp_setup
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572 .size __v7_b15mp_proc_info, . - __v7_b15mp_proc_info
573
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574 /*
575 * ARM Ltd. Cortex A17 processor.
576 */
577 .type __v7_ca17mp_proc_info, #object
578__v7_ca17mp_proc_info:
579 .long 0x410fc0e0
580 .long 0xff0ffff0
581 __v7_proc __v7_ca17mp_setup
582 .size __v7_ca17mp_proc_info, . - __v7_ca17mp_proc_info
583
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584 /*
585 * Qualcomm Inc. Krait processors.
586 */
587 .type __krait_proc_info, #object
588__krait_proc_info:
589 .long 0x510f0400 @ Required ID value
590 .long 0xff0ffc00 @ Mask for ID
591 /*
592 * Some Krait processors don't indicate support for SDIV and UDIV
593 * instructions in the ARM instruction set, even though they actually
594 * do support them.
595 */
596 __v7_proc __v7_setup, hwcaps = HWCAP_IDIV
597 .size __krait_proc_info, . - __krait_proc_info
598
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599 /*
600 * Match any ARMv7 processor core.
601 */
602 .type __v7_proc_info, #object
603__v7_proc_info:
604 .long 0x000f0000 @ Required ID value
605 .long 0x000f0000 @ Mask for ID
dc939cd8 606 __v7_proc __v7_setup
bbe88886 607 .size __v7_proc_info, . - __v7_proc_info
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