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Blackfin arch: Enable BF54x PIN/GPIO interrupts
[mirror_ubuntu-artful-kernel.git] / arch / blackfin / kernel / setup.c
1 /*
2 * File: arch/blackfin/kernel/setup.c
3 * Based on:
4 * Author:
5 *
6 * Created:
7 * Description:
8 *
9 * Modified:
10 * Copyright 2004-2006 Analog Devices Inc.
11 *
12 * Bugs: Enter bugs at http://blackfin.uclinux.org/
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, see the file COPYING, or write
26 * to the Free Software Foundation, Inc.,
27 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
28 */
29
30 #include <linux/delay.h>
31 #include <linux/console.h>
32 #include <linux/bootmem.h>
33 #include <linux/seq_file.h>
34 #include <linux/cpu.h>
35 #include <linux/module.h>
36 #include <linux/tty.h>
37
38 #include <linux/ext2_fs.h>
39 #include <linux/cramfs_fs.h>
40 #include <linux/romfs_fs.h>
41
42 #include <asm/cacheflush.h>
43 #include <asm/blackfin.h>
44 #include <asm/cplbinit.h>
45 #include <asm/fixed_code.h>
46
47 u16 _bfin_swrst;
48
49 unsigned long memory_start, memory_end, physical_mem_end;
50 unsigned long reserved_mem_dcache_on;
51 unsigned long reserved_mem_icache_on;
52 EXPORT_SYMBOL(memory_start);
53 EXPORT_SYMBOL(memory_end);
54 EXPORT_SYMBOL(physical_mem_end);
55 EXPORT_SYMBOL(_ramend);
56
57 #ifdef CONFIG_MTD_UCLINUX
58 unsigned long memory_mtd_end, memory_mtd_start, mtd_size;
59 unsigned long _ebss;
60 EXPORT_SYMBOL(memory_mtd_end);
61 EXPORT_SYMBOL(memory_mtd_start);
62 EXPORT_SYMBOL(mtd_size);
63 #endif
64
65 char __initdata command_line[COMMAND_LINE_SIZE];
66
67 void __init bf53x_cache_init(void)
68 {
69 #if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE)
70 generate_cpl_tables();
71 #endif
72
73 #ifdef CONFIG_BLKFIN_CACHE
74 bfin_icache_init();
75 printk(KERN_INFO "Instruction Cache Enabled\n");
76 #endif
77
78 #ifdef CONFIG_BLKFIN_DCACHE
79 bfin_dcache_init();
80 printk(KERN_INFO "Data Cache Enabled"
81 # if defined CONFIG_BLKFIN_WB
82 " (write-back)"
83 # elif defined CONFIG_BLKFIN_WT
84 " (write-through)"
85 # endif
86 "\n");
87 #endif
88 }
89
90 void __init bf53x_relocate_l1_mem(void)
91 {
92 unsigned long l1_code_length;
93 unsigned long l1_data_a_length;
94 unsigned long l1_data_b_length;
95
96 l1_code_length = _etext_l1 - _stext_l1;
97 if (l1_code_length > L1_CODE_LENGTH)
98 l1_code_length = L1_CODE_LENGTH;
99 /* cannot complain as printk is not available as yet.
100 * But we can continue booting and complain later!
101 */
102
103 /* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */
104 dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length);
105
106 l1_data_a_length = _ebss_l1 - _sdata_l1;
107 if (l1_data_a_length > L1_DATA_A_LENGTH)
108 l1_data_a_length = L1_DATA_A_LENGTH;
109
110 /* Copy _sdata_l1 to _ebss_l1 to L1 data bank A SRAM */
111 dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length);
112
113 l1_data_b_length = _ebss_b_l1 - _sdata_b_l1;
114 if (l1_data_b_length > L1_DATA_B_LENGTH)
115 l1_data_b_length = L1_DATA_B_LENGTH;
116
117 /* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */
118 dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
119 l1_data_a_length, l1_data_b_length);
120
121 }
122
123 /*
124 * Initial parsing of the command line. Currently, we support:
125 * - Controlling the linux memory size: mem=xxx[KMG]
126 * - Controlling the physical memory size: max_mem=xxx[KMG][$][#]
127 * $ -> reserved memory is dcacheable
128 * # -> reserved memory is icacheable
129 */
130 static __init void parse_cmdline_early(char *cmdline_p)
131 {
132 char c = ' ', *to = cmdline_p;
133 unsigned int memsize;
134 for (;;) {
135 if (c == ' ') {
136
137 if (!memcmp(to, "mem=", 4)) {
138 to += 4;
139 memsize = memparse(to, &to);
140 if (memsize)
141 _ramend = memsize;
142
143 } else if (!memcmp(to, "max_mem=", 8)) {
144 to += 8;
145 memsize = memparse(to, &to);
146 if (memsize) {
147 physical_mem_end = memsize;
148 if (*to != ' ') {
149 if (*to == '$'
150 || *(to + 1) == '$')
151 reserved_mem_dcache_on =
152 1;
153 if (*to == '#'
154 || *(to + 1) == '#')
155 reserved_mem_icache_on =
156 1;
157 }
158 }
159 }
160
161 }
162 c = *(to++);
163 if (!c)
164 break;
165 }
166 }
167
168 void __init setup_arch(char **cmdline_p)
169 {
170 int bootmap_size;
171 unsigned long l1_length, sclk, cclk;
172 #ifdef CONFIG_MTD_UCLINUX
173 unsigned long mtd_phys = 0;
174 #endif
175
176 #ifdef CONFIG_DUMMY_CONSOLE
177 conswitchp = &dummy_con;
178 #endif
179 cclk = get_cclk();
180 sclk = get_sclk();
181
182 #if !defined(CONFIG_BFIN_KERNEL_CLOCK) && defined(ANOMALY_05000273)
183 if (cclk == sclk)
184 panic("ANOMALY 05000273, SCLK can not be same as CCLK");
185 #endif
186
187 #if defined(ANOMALY_05000266)
188 bfin_read_IMDMA_D0_IRQ_STATUS();
189 bfin_read_IMDMA_D1_IRQ_STATUS();
190 #endif
191
192 #ifdef DEBUG_SERIAL_EARLY_INIT
193 bfin_console_init(); /* early console registration */
194 /* this give a chance to get printk() working before crash. */
195 #endif
196
197 printk(KERN_INFO "Hardware Trace ");
198 if (bfin_read_TBUFCTL() & 0x1 )
199 printk("Active ");
200 else
201 printk("Off ");
202 if (bfin_read_TBUFCTL() & 0x2)
203 printk("and Enabled\n");
204 else
205 printk("and Disabled\n");
206
207
208 #if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH)
209 /* we need to initialize the Flashrom device here since we might
210 * do things with flash early on in the boot
211 */
212 flash_probe();
213 #endif
214
215 #if defined(CONFIG_CMDLINE_BOOL)
216 strncpy(&command_line[0], CONFIG_CMDLINE, sizeof(command_line));
217 command_line[sizeof(command_line) - 1] = 0;
218 #endif
219
220 /* Keep a copy of command line */
221 *cmdline_p = &command_line[0];
222 memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
223 boot_command_line[COMMAND_LINE_SIZE - 1] = '\0';
224
225 /* setup memory defaults from the user config */
226 physical_mem_end = 0;
227 _ramend = CONFIG_MEM_SIZE * 1024 * 1024;
228
229 parse_cmdline_early(&command_line[0]);
230
231 if (physical_mem_end == 0)
232 physical_mem_end = _ramend;
233
234 /* by now the stack is part of the init task */
235 memory_end = _ramend - DMA_UNCACHED_REGION;
236
237 _ramstart = (unsigned long)__bss_stop;
238 memory_start = PAGE_ALIGN(_ramstart);
239
240 #if defined(CONFIG_MTD_UCLINUX)
241 /* generic memory mapped MTD driver */
242 memory_mtd_end = memory_end;
243
244 mtd_phys = _ramstart;
245 mtd_size = PAGE_ALIGN(*((unsigned long *)(mtd_phys + 8)));
246
247 # if defined(CONFIG_EXT2_FS) || defined(CONFIG_EXT3_FS)
248 if (*((unsigned short *)(mtd_phys + 0x438)) == EXT2_SUPER_MAGIC)
249 mtd_size =
250 PAGE_ALIGN(*((unsigned long *)(mtd_phys + 0x404)) << 10);
251 # endif
252
253 # if defined(CONFIG_CRAMFS)
254 if (*((unsigned long *)(mtd_phys)) == CRAMFS_MAGIC)
255 mtd_size = PAGE_ALIGN(*((unsigned long *)(mtd_phys + 0x4)));
256 # endif
257
258 # if defined(CONFIG_ROMFS_FS)
259 if (((unsigned long *)mtd_phys)[0] == ROMSB_WORD0
260 && ((unsigned long *)mtd_phys)[1] == ROMSB_WORD1)
261 mtd_size =
262 PAGE_ALIGN(be32_to_cpu(((unsigned long *)mtd_phys)[2]));
263 # if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263))
264 /* Due to a Hardware Anomaly we need to limit the size of usable
265 * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on
266 * 05000263 - Hardware loop corrupted when taking an ICPLB exception
267 */
268 # if (defined(CONFIG_DEBUG_HUNT_FOR_ZERO))
269 if (memory_end >= 56 * 1024 * 1024)
270 memory_end = 56 * 1024 * 1024;
271 # else
272 if (memory_end >= 60 * 1024 * 1024)
273 memory_end = 60 * 1024 * 1024;
274 # endif /* CONFIG_DEBUG_HUNT_FOR_ZERO */
275 # endif /* ANOMALY_05000263 */
276 # endif /* CONFIG_ROMFS_FS */
277
278 memory_end -= mtd_size;
279
280 if (mtd_size == 0) {
281 console_init();
282 panic("Don't boot kernel without rootfs attached.\n");
283 }
284
285 /* Relocate MTD image to the top of memory after the uncached memory area */
286 dma_memcpy((char *)memory_end, __bss_stop, mtd_size);
287
288 memory_mtd_start = memory_end;
289 _ebss = memory_mtd_start; /* define _ebss for compatible */
290 #endif /* CONFIG_MTD_UCLINUX */
291
292 #if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263))
293 /* Due to a Hardware Anomaly we need to limit the size of usable
294 * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on
295 * 05000263 - Hardware loop corrupted when taking an ICPLB exception
296 */
297 #if (defined(CONFIG_DEBUG_HUNT_FOR_ZERO))
298 if (memory_end >= 56 * 1024 * 1024)
299 memory_end = 56 * 1024 * 1024;
300 #else
301 if (memory_end >= 60 * 1024 * 1024)
302 memory_end = 60 * 1024 * 1024;
303 #endif /* CONFIG_DEBUG_HUNT_FOR_ZERO */
304 printk(KERN_NOTICE "Warning: limiting memory to %liMB due to hardware anomaly 05000263\n", memory_end >> 20);
305 #endif /* ANOMALY_05000263 */
306
307 #if !defined(CONFIG_MTD_UCLINUX)
308 memory_end -= SIZE_4K; /*In case there is no valid CPLB behind memory_end make sure we don't get to close*/
309 #endif
310 init_mm.start_code = (unsigned long)_stext;
311 init_mm.end_code = (unsigned long)_etext;
312 init_mm.end_data = (unsigned long)_edata;
313 init_mm.brk = (unsigned long)0;
314
315 init_leds();
316
317 printk(KERN_INFO "Blackfin support (C) 2004-2007 Analog Devices, Inc.\n");
318 if (bfin_compiled_revid() == 0xffff)
319 printk(KERN_INFO "Compiled for ADSP-%s Rev any\n", CPU);
320 else if (bfin_compiled_revid() == -1)
321 printk(KERN_INFO "Compiled for ADSP-%s Rev none\n", CPU);
322 else
323 printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid());
324 if (bfin_revid() != bfin_compiled_revid()) {
325 if (bfin_compiled_revid() == -1)
326 printk(KERN_ERR "Warning: Compiled for Rev none, but running on Rev %d\n",
327 bfin_revid());
328 else if (bfin_compiled_revid() != 0xffff)
329 printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
330 bfin_compiled_revid(), bfin_revid());
331 }
332 if (bfin_revid() < SUPPORTED_REVID)
333 printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
334 CPU, bfin_revid());
335 printk(KERN_INFO "Blackfin Linux support by http://blackfin.uclinux.org/\n");
336
337 printk(KERN_INFO "Processor Speed: %lu MHz core clock and %lu Mhz System Clock\n",
338 cclk / 1000000, sclk / 1000000);
339
340 #if defined(ANOMALY_05000273)
341 if ((cclk >> 1) <= sclk)
342 printk("\n\n\nANOMALY_05000273: CCLK must be >= 2*SCLK !!!\n\n\n");
343 #endif
344
345 printk(KERN_INFO "Board Memory: %ldMB\n", physical_mem_end >> 20);
346 printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", _ramend >> 20);
347
348 printk(KERN_INFO "Memory map:\n"
349 KERN_INFO " text = 0x%p-0x%p\n"
350 KERN_INFO " rodata = 0x%p-0x%p\n"
351 KERN_INFO " data = 0x%p-0x%p\n"
352 KERN_INFO " stack = 0x%p-0x%p\n"
353 KERN_INFO " init = 0x%p-0x%p\n"
354 KERN_INFO " bss = 0x%p-0x%p\n"
355 KERN_INFO " available = 0x%p-0x%p\n"
356 #ifdef CONFIG_MTD_UCLINUX
357 KERN_INFO " rootfs = 0x%p-0x%p\n"
358 #endif
359 #if DMA_UNCACHED_REGION > 0
360 KERN_INFO " DMA Zone = 0x%p-0x%p\n"
361 #endif
362 , _stext, _etext,
363 __start_rodata, __end_rodata,
364 _sdata, _edata,
365 (void *)&init_thread_union, (void *)((int)(&init_thread_union) + 0x2000),
366 __init_begin, __init_end,
367 __bss_start, __bss_stop,
368 (void *)_ramstart, (void *)memory_end
369 #ifdef CONFIG_MTD_UCLINUX
370 , (void *)memory_mtd_start, (void *)(memory_mtd_start + mtd_size)
371 #endif
372 #if DMA_UNCACHED_REGION > 0
373 , (void *)(_ramend - DMA_UNCACHED_REGION), (void *)(_ramend)
374 #endif
375 );
376
377 /*
378 * give all the memory to the bootmap allocator, tell it to put the
379 * boot mem_map at the start of memory
380 */
381 bootmap_size = init_bootmem_node(NODE_DATA(0), memory_start >> PAGE_SHIFT, /* map goes here */
382 PAGE_OFFSET >> PAGE_SHIFT,
383 memory_end >> PAGE_SHIFT);
384 /*
385 * free the usable memory, we have to make sure we do not free
386 * the bootmem bitmap so we then reserve it after freeing it :-)
387 */
388 free_bootmem(memory_start, memory_end - memory_start);
389
390 reserve_bootmem(memory_start, bootmap_size);
391 /*
392 * get kmalloc into gear
393 */
394 paging_init();
395
396 /* check the size of the l1 area */
397 l1_length = _etext_l1 - _stext_l1;
398 if (l1_length > L1_CODE_LENGTH)
399 panic("L1 code memory overflow\n");
400
401 l1_length = _ebss_l1 - _sdata_l1;
402 if (l1_length > L1_DATA_A_LENGTH)
403 panic("L1 data memory overflow\n");
404
405 #ifdef BF561_FAMILY
406 _bfin_swrst = bfin_read_SICA_SWRST();
407 #else
408 _bfin_swrst = bfin_read_SWRST();
409 #endif
410
411 /* Copy atomic sequences to their fixed location, and sanity check that
412 these locations are the ones that we advertise to userspace. */
413 memcpy((void *)FIXED_CODE_START, &fixed_code_start,
414 FIXED_CODE_END - FIXED_CODE_START);
415 BUG_ON((char *)&sigreturn_stub - (char *)&fixed_code_start
416 != SIGRETURN_STUB - FIXED_CODE_START);
417 BUG_ON((char *)&atomic_xchg32 - (char *)&fixed_code_start
418 != ATOMIC_XCHG32 - FIXED_CODE_START);
419 BUG_ON((char *)&atomic_cas32 - (char *)&fixed_code_start
420 != ATOMIC_CAS32 - FIXED_CODE_START);
421 BUG_ON((char *)&atomic_add32 - (char *)&fixed_code_start
422 != ATOMIC_ADD32 - FIXED_CODE_START);
423 BUG_ON((char *)&atomic_sub32 - (char *)&fixed_code_start
424 != ATOMIC_SUB32 - FIXED_CODE_START);
425 BUG_ON((char *)&atomic_ior32 - (char *)&fixed_code_start
426 != ATOMIC_IOR32 - FIXED_CODE_START);
427 BUG_ON((char *)&atomic_and32 - (char *)&fixed_code_start
428 != ATOMIC_AND32 - FIXED_CODE_START);
429 BUG_ON((char *)&atomic_xor32 - (char *)&fixed_code_start
430 != ATOMIC_XOR32 - FIXED_CODE_START);
431
432 bf53x_cache_init();
433 }
434
435 static int __init topology_init(void)
436 {
437 #if defined (CONFIG_BF561)
438 static struct cpu cpu[2];
439 register_cpu(&cpu[0], 0);
440 register_cpu(&cpu[1], 1);
441 return 0;
442 #else
443 static struct cpu cpu[1];
444 return register_cpu(cpu, 0);
445 #endif
446 }
447
448 subsys_initcall(topology_init);
449
450 static u_long get_vco(void)
451 {
452 u_long msel;
453 u_long vco;
454
455 msel = (bfin_read_PLL_CTL() >> 9) & 0x3F;
456 if (0 == msel)
457 msel = 64;
458
459 vco = CONFIG_CLKIN_HZ;
460 vco >>= (1 & bfin_read_PLL_CTL()); /* DF bit */
461 vco = msel * vco;
462 return vco;
463 }
464
465 /*Get the Core clock*/
466 u_long get_cclk(void)
467 {
468 u_long csel, ssel;
469 if (bfin_read_PLL_STAT() & 0x1)
470 return CONFIG_CLKIN_HZ;
471
472 ssel = bfin_read_PLL_DIV();
473 csel = ((ssel >> 4) & 0x03);
474 ssel &= 0xf;
475 if (ssel && ssel < (1 << csel)) /* SCLK > CCLK */
476 return get_vco() / ssel;
477 return get_vco() >> csel;
478 }
479 EXPORT_SYMBOL(get_cclk);
480
481 /* Get the System clock */
482 u_long get_sclk(void)
483 {
484 u_long ssel;
485
486 if (bfin_read_PLL_STAT() & 0x1)
487 return CONFIG_CLKIN_HZ;
488
489 ssel = (bfin_read_PLL_DIV() & 0xf);
490 if (0 == ssel) {
491 printk(KERN_WARNING "Invalid System Clock\n");
492 ssel = 1;
493 }
494
495 return get_vco() / ssel;
496 }
497 EXPORT_SYMBOL(get_sclk);
498
499 /*
500 * Get CPU information for use by the procfs.
501 */
502 static int show_cpuinfo(struct seq_file *m, void *v)
503 {
504 char *cpu, *mmu, *fpu, *name;
505 uint32_t revid;
506
507 u_long cclk = 0, sclk = 0;
508 u_int dcache_size = 0, dsup_banks = 0;
509
510 cpu = CPU;
511 mmu = "none";
512 fpu = "none";
513 revid = bfin_revid();
514 name = bfin_board_name;
515
516 cclk = get_cclk();
517 sclk = get_sclk();
518
519 seq_printf(m, "CPU:\t\tADSP-%s Rev. 0.%d\n"
520 "MMU:\t\t%s\n"
521 "FPU:\t\t%s\n"
522 "Core Clock:\t%9lu Hz\n"
523 "System Clock:\t%9lu Hz\n"
524 "BogoMips:\t%lu.%02lu\n"
525 "Calibration:\t%lu loops\n",
526 cpu, revid, mmu, fpu,
527 cclk,
528 sclk,
529 (loops_per_jiffy * HZ) / 500000,
530 ((loops_per_jiffy * HZ) / 5000) % 100,
531 (loops_per_jiffy * HZ));
532 seq_printf(m, "Board Name:\t%s\n", name);
533 seq_printf(m, "Board Memory:\t%ld MB\n", physical_mem_end >> 20);
534 seq_printf(m, "Kernel Memory:\t%ld MB\n", (unsigned long)_ramend >> 20);
535 if (bfin_read_IMEM_CONTROL() & (ENICPLB | IMC))
536 seq_printf(m, "I-CACHE:\tON\n");
537 else
538 seq_printf(m, "I-CACHE:\tOFF\n");
539 if ((bfin_read_DMEM_CONTROL()) & (ENDCPLB | DMC_ENABLE))
540 seq_printf(m, "D-CACHE:\tON"
541 #if defined CONFIG_BLKFIN_WB
542 " (write-back)"
543 #elif defined CONFIG_BLKFIN_WT
544 " (write-through)"
545 #endif
546 "\n");
547 else
548 seq_printf(m, "D-CACHE:\tOFF\n");
549
550
551 switch (bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) {
552 case ACACHE_BSRAM:
553 seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n");
554 dcache_size = 16;
555 dsup_banks = 1;
556 break;
557 case ACACHE_BCACHE:
558 seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n");
559 dcache_size = 32;
560 dsup_banks = 2;
561 break;
562 case ASRAM_BSRAM:
563 seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n");
564 dcache_size = 0;
565 dsup_banks = 0;
566 break;
567 default:
568 break;
569 }
570
571
572 seq_printf(m, "I-CACHE Size:\t%dKB\n", BLKFIN_ICACHESIZE / 1024);
573 seq_printf(m, "D-CACHE Size:\t%dKB\n", dcache_size);
574 seq_printf(m, "I-CACHE Setup:\t%d Sub-banks/%d Ways, %d Lines/Way\n",
575 BLKFIN_ISUBBANKS, BLKFIN_IWAYS, BLKFIN_ILINES);
576 seq_printf(m,
577 "D-CACHE Setup:\t%d Super-banks/%d Sub-banks/%d Ways, %d Lines/Way\n",
578 dsup_banks, BLKFIN_DSUBBANKS, BLKFIN_DWAYS,
579 BLKFIN_DLINES);
580 #ifdef CONFIG_BLKFIN_CACHE_LOCK
581 switch (read_iloc()) {
582 case WAY0_L:
583 seq_printf(m, "Way0 Locked-Down\n");
584 break;
585 case WAY1_L:
586 seq_printf(m, "Way1 Locked-Down\n");
587 break;
588 case WAY01_L:
589 seq_printf(m, "Way0,Way1 Locked-Down\n");
590 break;
591 case WAY2_L:
592 seq_printf(m, "Way2 Locked-Down\n");
593 break;
594 case WAY02_L:
595 seq_printf(m, "Way0,Way2 Locked-Down\n");
596 break;
597 case WAY12_L:
598 seq_printf(m, "Way1,Way2 Locked-Down\n");
599 break;
600 case WAY012_L:
601 seq_printf(m, "Way0,Way1 & Way2 Locked-Down\n");
602 break;
603 case WAY3_L:
604 seq_printf(m, "Way3 Locked-Down\n");
605 break;
606 case WAY03_L:
607 seq_printf(m, "Way0,Way3 Locked-Down\n");
608 break;
609 case WAY13_L:
610 seq_printf(m, "Way1,Way3 Locked-Down\n");
611 break;
612 case WAY013_L:
613 seq_printf(m, "Way 0,Way1,Way3 Locked-Down\n");
614 break;
615 case WAY32_L:
616 seq_printf(m, "Way3,Way2 Locked-Down\n");
617 break;
618 case WAY320_L:
619 seq_printf(m, "Way3,Way2,Way0 Locked-Down\n");
620 break;
621 case WAY321_L:
622 seq_printf(m, "Way3,Way2,Way1 Locked-Down\n");
623 break;
624 case WAYALL_L:
625 seq_printf(m, "All Ways are locked\n");
626 break;
627 default:
628 seq_printf(m, "No Ways are locked\n");
629 }
630 #endif
631 return 0;
632 }
633
634 static void *c_start(struct seq_file *m, loff_t *pos)
635 {
636 return *pos < NR_CPUS ? ((void *)0x12345678) : NULL;
637 }
638
639 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
640 {
641 ++*pos;
642 return c_start(m, pos);
643 }
644
645 static void c_stop(struct seq_file *m, void *v)
646 {
647 }
648
649 struct seq_operations cpuinfo_op = {
650 .start = c_start,
651 .next = c_next,
652 .stop = c_stop,
653 .show = show_cpuinfo,
654 };
655
656 void __init cmdline_init(const char *r0)
657 {
658 if (r0)
659 strncpy(command_line, r0, COMMAND_LINE_SIZE);
660 }
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