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1 /*-
2  * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30
31 #include <sys/param.h>
32 #include <sys/conf.h>
33 #include <sys/kernel.h>
34 #include <sys/systm.h>
35 #include <sys/imgact.h>
36 #include <sys/bio.h>
37 #include <sys/buf.h>
38 #include <sys/bus.h>
39 #include <sys/cpu.h>
40 #include <sys/cons.h>
41 #include <sys/exec.h>
42 #include <sys/ucontext.h>
43 #include <sys/proc.h>
44 #include <sys/kdb.h>
45 #include <sys/ptrace.h>
46 #include <sys/reboot.h>
47 #include <sys/signalvar.h>
48 #include <sys/sysctl.h>
49 #include <sys/sysent.h>
50 #include <sys/sysproto.h>
51 #include <sys/time.h>
52 #include <sys/timetc.h>
53 #include <sys/user.h>
54
55 #include <vm/vm.h>
56 #include <vm/vm_object.h>
57 #include <vm/vm_page.h>
58
59 #include <machine/atomic.h>
60 #include <machine/cache.h>
61 #include <machine/clock.h>
62 #include <machine/cpu.h>
63 #include <machine/cpuregs.h>
64 #include <machine/cpufunc.h>
65 #include <mips/cavium/octeon_pcmap_regs.h>
66 #include <machine/hwfunc.h>
67 #include <machine/intr_machdep.h>
68 #include <machine/locore.h>
69 #include <machine/md_var.h>
70 #include <machine/pcpu.h>
71 #include <machine/pte.h>
72 #include <machine/trap.h>
73 #include <machine/vmparam.h>
74
75 #include <contrib/octeon-sdk/cvmx.h>
76 #include <contrib/octeon-sdk/cvmx-bootmem.h>
77 #include <contrib/octeon-sdk/cvmx-ebt3000.h>
78 #include <contrib/octeon-sdk/cvmx-helper-cfg.h>
79 #include <contrib/octeon-sdk/cvmx-interrupt.h>
80 #include <contrib/octeon-sdk/cvmx-version.h>
81
82 #include <mips/cavium/octeon_irq.h>
83
84 #if defined(__mips_n64) 
85 #define MAX_APP_DESC_ADDR     0xffffffffafffffff
86 #else
87 #define MAX_APP_DESC_ADDR     0xafffffff
88 #endif
89
90 struct octeon_feature_description {
91         octeon_feature_t ofd_feature;
92         const char *ofd_string;
93 };
94
95 extern int      *end;
96 extern char cpu_model[];
97 extern char cpu_board[];
98
99 static const struct octeon_feature_description octeon_feature_descriptions[] = {
100         { OCTEON_FEATURE_SAAD,                  "SAAD" },
101         { OCTEON_FEATURE_ZIP,                   "ZIP" },
102         { OCTEON_FEATURE_CRYPTO,                "CRYPTO" },
103         { OCTEON_FEATURE_DORM_CRYPTO,           "DORM_CRYPTO" },
104         { OCTEON_FEATURE_PCIE,                  "PCIE" },
105         { OCTEON_FEATURE_SRIO,                  "SRIO" },
106         { OCTEON_FEATURE_KEY_MEMORY,            "KEY_MEMORY" },
107         { OCTEON_FEATURE_LED_CONTROLLER,        "LED_CONTROLLER" },
108         { OCTEON_FEATURE_TRA,                   "TRA" },
109         { OCTEON_FEATURE_MGMT_PORT,             "MGMT_PORT" },
110         { OCTEON_FEATURE_RAID,                  "RAID" },
111         { OCTEON_FEATURE_USB,                   "USB" },
112         { OCTEON_FEATURE_NO_WPTR,               "NO_WPTR" },
113         { OCTEON_FEATURE_DFA,                   "DFA" },
114         { OCTEON_FEATURE_MDIO_CLAUSE_45,        "MDIO_CLAUSE_45" },
115         { OCTEON_FEATURE_NPEI,                  "NPEI" },
116         { OCTEON_FEATURE_ILK,                   "ILK" },
117         { OCTEON_FEATURE_HFA,                   "HFA" },
118         { OCTEON_FEATURE_DFM,                   "DFM" },
119         { OCTEON_FEATURE_CIU2,                  "CIU2" },
120         { OCTEON_FEATURE_DICI_MODE,             "DICI_MODE" },
121         { OCTEON_FEATURE_BIT_EXTRACTOR,         "BIT_EXTRACTOR" },
122         { OCTEON_FEATURE_NAND,                  "NAND" },
123         { OCTEON_FEATURE_MMC,                   "MMC" },
124         { OCTEON_FEATURE_PKND,                  "PKND" },
125         { OCTEON_FEATURE_CN68XX_WQE,            "CN68XX_WQE" },
126         { 0,                                    NULL }
127 };
128
129 static uint64_t octeon_get_ticks(void);
130 static unsigned octeon_get_timecount(struct timecounter *tc);
131
132 static void octeon_boot_params_init(register_t ptr);
133
134 static struct timecounter octeon_timecounter = {
135         octeon_get_timecount,   /* get_timecount */
136         0,                      /* no poll_pps */
137         0xffffffffu,            /* octeon_mask */
138         0,                      /* frequency */
139         "Octeon",               /* name */
140         900,                    /* quality (adjusted in code) */
141 };
142
143 void
144 platform_cpu_init()
145 {
146         /* Nothing special yet */
147 }
148
149 /*
150  * Perform a board-level soft-reset.
151  */
152 void
153 platform_reset(void)
154 {
155         cvmx_write_csr(CVMX_CIU_SOFT_RST, 1);
156 }
157
158 /*
159  * octeon_debug_symbol
160  *
161  * Does nothing.
162  * Used to mark the point for simulator to begin tracing
163  */
164 void
165 octeon_debug_symbol(void)
166 {
167 }
168
169 /*
170  * octeon_ciu_reset
171  *
172  * Shutdown all CIU to IP2, IP3 mappings
173  */
174 void
175 octeon_ciu_reset(void)
176 {
177         uint64_t cvmctl;
178
179         /* Disable all CIU interrupts by default */
180         cvmx_write_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num()*2), 0);
181         cvmx_write_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num()*2+1), 0);
182         cvmx_write_csr(CVMX_CIU_INTX_EN1(cvmx_get_core_num()*2), 0);
183         cvmx_write_csr(CVMX_CIU_INTX_EN1(cvmx_get_core_num()*2+1), 0);
184
185 #ifdef SMP
186         /* Enable the MBOX interrupts.  */
187         cvmx_write_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num()*2+1),
188                        (1ull << (OCTEON_IRQ_MBOX0 - 8)) |
189                        (1ull << (OCTEON_IRQ_MBOX1 - 8)));
190 #endif
191
192         /* 
193          * Move the Performance Counter interrupt to OCTEON_PMC_IRQ
194          */
195         cvmctl = mips_rd_cvmctl();
196         cvmctl &= ~(7 << 7);
197         cvmctl |= (OCTEON_PMC_IRQ + 2) << 7;
198         mips_wr_cvmctl(cvmctl);
199 }
200
201 static void
202 octeon_memory_init(void)
203 {
204         vm_paddr_t phys_end;
205         int64_t addr;
206         unsigned i, j;
207
208         phys_end = round_page(MIPS_KSEG0_TO_PHYS((vm_offset_t)&end));
209
210         if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM) {
211                 /* Simulator we limit to 96 meg */
212                 phys_avail[0] = phys_end;
213                 phys_avail[1] = 96 << 20;
214
215                 dump_avail[0] = phys_avail[0];
216                 dump_avail[1] = phys_avail[1];
217
218                 realmem = physmem = btoc(phys_avail[1] - phys_avail[0]);
219                 return;
220         }
221
222         /*
223          * Allocate memory from bootmem 1MB at a time and merge
224          * adjacent entries.
225          */
226         i = 0;
227         while (i < PHYS_AVAIL_ENTRIES) {
228                 /*
229                  * If there is less than 2MB of memory available in 128-byte
230                  * blocks, do not steal any more memory.  We need to leave some
231                  * memory for the command queues to be allocated out of.
232                  */
233                 if (cvmx_bootmem_available_mem(128) < 2 << 20)
234                         break;
235
236                 addr = cvmx_bootmem_phy_alloc(1 << 20, phys_end,
237                                               ~(vm_paddr_t)0, PAGE_SIZE, 0);
238                 if (addr == -1)
239                         break;
240
241                 /*
242                  * The SDK needs to be able to easily map any memory that might
243                  * come to it e.g. in the form of an mbuf.  Because on !n64 we
244                  * can't direct-map some addresses and we don't want to manage
245                  * temporary mappings within the SDK, don't feed memory that
246                  * can't be direct-mapped to the kernel.
247                  */
248 #if !defined(__mips_n64)
249                 if (!MIPS_DIRECT_MAPPABLE(addr + (1 << 20) - 1))
250                         continue;
251 #endif
252
253                 physmem += btoc(1 << 20);
254
255                 if (i > 0 && phys_avail[i - 1] == addr) {
256                         phys_avail[i - 1] += 1 << 20;
257                         continue;
258                 }
259
260                 phys_avail[i + 0] = addr;
261                 phys_avail[i + 1] = addr + (1 << 20);
262
263                 i += 2;
264         }
265
266         for (j = 0; j < i; j++)
267                 dump_avail[j] = phys_avail[j];
268
269         realmem = physmem;
270 }
271
272 void
273 platform_start(__register_t a0, __register_t a1, __register_t a2 __unused,
274     __register_t a3)
275 {
276         const struct octeon_feature_description *ofd;
277         uint64_t platform_counter_freq;
278         int rv;
279
280         mips_postboot_fixup();
281
282         /*
283          * Initialize boot parameters so that we can determine things like
284          * which console we shoud use, etc.
285          */
286         octeon_boot_params_init(a3);
287
288         /* Initialize pcpu stuff */
289         mips_pcpu0_init();
290         mips_timer_early_init(cvmx_sysinfo_get()->cpu_clock_hz);
291
292         /* Initialize console.  */
293         cninit();
294
295         /*
296          * Display information about the CPU.
297          */
298 #if !defined(OCTEON_MODEL)
299         printf("Using runtime CPU model checks.\n");
300 #else
301         printf("Compiled for CPU model: " __XSTRING(OCTEON_MODEL) "\n");
302 #endif
303         strcpy(cpu_model, octeon_model_get_string(cvmx_get_proc_id()));
304         printf("CPU Model: %s\n", cpu_model);
305         printf("CPU clock: %uMHz  Core Mask: %#x\n",
306                cvmx_sysinfo_get()->cpu_clock_hz / 1000000,
307                cvmx_sysinfo_get()->core_mask);
308         rv = octeon_model_version_check(cvmx_get_proc_id());
309         if (rv == -1)
310                 panic("%s: kernel not compatible with this processor.", __func__);
311
312         /*
313          * Display information about the board.
314          */
315 #if defined(OCTEON_BOARD_CAPK_0100ND)
316         strcpy(cpu_board, "CAPK-0100ND");
317         if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_CN3010_EVB_HS5) {
318                 panic("Compiled for %s, but board type is %s.", cpu_board,
319                        cvmx_board_type_to_string(cvmx_sysinfo_get()->board_type));
320         }
321 #else
322         strcpy(cpu_board,
323                cvmx_board_type_to_string(cvmx_sysinfo_get()->board_type));
324 #endif
325         printf("Board: %s\n", cpu_board);
326         printf("Board Type: %u  Revision: %u/%u\n",
327                cvmx_sysinfo_get()->board_type,
328                cvmx_sysinfo_get()->board_rev_major,
329                cvmx_sysinfo_get()->board_rev_minor);
330         printf("Serial number: %s\n", cvmx_sysinfo_get()->board_serial_number);
331
332         /*
333          * Additional on-chip hardware/settings.
334          *
335          * XXX Display PCI host/target?  What else?
336          */
337         printf("MAC address base: %6D (%u configured)\n",
338                cvmx_sysinfo_get()->mac_addr_base, ":",
339                cvmx_sysinfo_get()->mac_addr_count);
340
341
342         octeon_ciu_reset();
343         /*
344          * XXX
345          * We can certainly parse command line arguments or U-Boot environment
346          * to determine whether to bootverbose / single user / ...  I think
347          * stass has patches to add support for loader things to U-Boot even.
348          */
349         bootverbose = 1;
350
351         /*
352          * For some reason on the cn38xx simulator ebase register is set to
353          * 0x80001000 at bootup time.  Move it back to the default, but
354          * when we move to having support for multiple executives, we need
355          * to rethink this.
356          */
357         mips_wr_ebase(0x80000000);
358
359         octeon_memory_init();
360         init_param1();
361         init_param2(physmem);
362         mips_cpu_init();
363         pmap_bootstrap();
364         mips_proc0_init();
365         mutex_init();
366         kdb_init();
367 #ifdef KDB
368         if (boothowto & RB_KDB)
369                 kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger");
370 #endif
371         cpu_clock = cvmx_sysinfo_get()->cpu_clock_hz;
372         platform_counter_freq = cpu_clock;
373         octeon_timecounter.tc_frequency = cpu_clock;
374         platform_timecounter = &octeon_timecounter;
375         mips_timer_init_params(platform_counter_freq, 0);
376         set_cputicker(octeon_get_ticks, cpu_clock, 0);
377
378 #ifdef SMP
379         /*
380          * Clear any pending IPIs.
381          */
382         cvmx_write_csr(CVMX_CIU_MBOX_CLRX(0), 0xffffffff);
383 #endif
384
385         printf("Octeon SDK: %s\n", OCTEON_SDK_VERSION_STRING);
386         printf("Available Octeon features:");
387         for (ofd = octeon_feature_descriptions; ofd->ofd_string != NULL; ofd++)
388                 if (octeon_has_feature(ofd->ofd_feature))
389                         printf(" %s", ofd->ofd_string);
390         printf("\n");
391 }
392
393 static uint64_t
394 octeon_get_ticks(void)
395 {
396         uint64_t cvmcount;
397
398         CVMX_MF_CYCLE(cvmcount);
399         return (cvmcount);
400 }
401
402 static unsigned
403 octeon_get_timecount(struct timecounter *tc)
404 {
405         return ((unsigned)octeon_get_ticks());
406 }
407
408 static int
409 sysctl_machdep_led_display(SYSCTL_HANDLER_ARGS)
410 {
411         size_t buflen;
412         char buf[9];
413         int error;
414
415         if (req->newptr == NULL)
416                 return (EINVAL);
417
418         if (cvmx_sysinfo_get()->led_display_base_addr == 0)
419                 return (ENODEV);
420
421         /*
422          * Revision 1.x of the EBT3000 only supports 4 characters, but
423          * other devices support 8.
424          */
425         if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 &&
426             cvmx_sysinfo_get()->board_rev_major == 1)
427                 buflen = 4;
428         else
429                 buflen = 8;
430
431         if (req->newlen > buflen)
432                 return (E2BIG);
433
434         error = SYSCTL_IN(req, buf, req->newlen);
435         if (error != 0)
436                 return (error);
437
438         buf[req->newlen] = '\0';
439         ebt3000_str_write(buf);
440
441         return (0);
442 }
443
444 SYSCTL_PROC(_machdep, OID_AUTO, led_display, CTLTYPE_STRING | CTLFLAG_WR,
445     NULL, 0, sysctl_machdep_led_display, "A",
446     "String to display on LED display");
447
448 void
449 cvmx_dvprintf(const char *fmt, va_list ap)
450 {
451         if (!bootverbose)
452                 return;
453         vprintf(fmt, ap);
454 }
455
456 void
457 cvmx_dprintf(const char *fmt, ...)
458 {
459         va_list ap;
460
461         va_start(ap, fmt);
462         cvmx_dvprintf(fmt, ap);
463         va_end(ap);
464 }
465
466 /**
467  * version of printf that works better in exception context.
468  *
469  * @param format
470  *
471  * XXX If this function weren't in cvmx-interrupt.c, we'd use the SDK version.
472  */
473 void cvmx_safe_printf(const char *format, ...)
474 {
475     char buffer[256];
476     char *ptr = buffer;
477     int count;
478     va_list args;
479
480     va_start(args, format);
481 #ifndef __U_BOOT__
482     count = vsnprintf(buffer, sizeof(buffer), format, args);
483 #else
484     count = vsprintf(buffer, format, args);
485 #endif
486     va_end(args);
487
488     while (count-- > 0)
489     {
490         cvmx_uart_lsr_t lsrval;
491
492         /* Spin until there is room */
493         do
494         {
495             lsrval.u64 = cvmx_read_csr(CVMX_MIO_UARTX_LSR(0));
496 #if !defined(CONFIG_OCTEON_SIM_SPEED)
497             if (lsrval.s.temt == 0)
498                 cvmx_wait(10000);   /* Just to reduce the load on the system */
499 #endif
500         }
501         while (lsrval.s.temt == 0);
502
503         if (*ptr == '\n')
504             cvmx_write_csr(CVMX_MIO_UARTX_THR(0), '\r');
505         cvmx_write_csr(CVMX_MIO_UARTX_THR(0), *ptr++);
506     }
507 }
508
509 /* impSTART: This stuff should move back into the Cavium SDK */
510 /*
511  ****************************************************************************************
512  *
513  * APP/BOOT  DESCRIPTOR  STUFF
514  *
515  ****************************************************************************************
516  */
517
518 /* Define the struct that is initialized by the bootloader used by the 
519  * startup code.
520  *
521  * Copyright (c) 2004, 2005, 2006 Cavium Networks.
522  *
523  * The authors hereby grant permission to use, copy, modify, distribute,
524  * and license this software and its documentation for any purpose, provided
525  * that existing copyright notices are retained in all copies and that this
526  * notice is included verbatim in any distributions. No written agreement,
527  * license, or royalty fee is required for any of the authorized uses.
528  * Modifications to this software may be copyrighted by their authors
529  * and need not follow the licensing terms described here, provided that
530  * the new terms are clearly indicated on the first page of each file where
531  * they apply.
532  */
533
534 #define OCTEON_CURRENT_DESC_VERSION     6
535 #define OCTEON_ARGV_MAX_ARGS            (64)
536 #define OCTOEN_SERIAL_LEN 20
537
538 typedef struct {
539         /* Start of block referenced by assembly code - do not change! */
540         uint32_t desc_version;
541         uint32_t desc_size;
542
543         uint64_t stack_top;
544         uint64_t heap_base;
545         uint64_t heap_end;
546         uint64_t entry_point;   /* Only used by bootloader */
547         uint64_t desc_vaddr;
548         /* End of This block referenced by assembly code - do not change! */
549
550         uint32_t exception_base_addr;
551         uint32_t stack_size;
552         uint32_t heap_size;
553         uint32_t argc;  /* Argc count for application */
554         uint32_t argv[OCTEON_ARGV_MAX_ARGS];
555         uint32_t flags;
556         uint32_t core_mask;
557         uint32_t dram_size;  /**< DRAM size in megabyes */
558         uint32_t phy_mem_desc_addr;  /**< physical address of free memory descriptor block*/
559         uint32_t debugger_flags_base_addr;  /**< used to pass flags from app to debugger */
560         uint32_t eclock_hz;  /**< CPU clock speed, in hz */
561         uint32_t dclock_hz;  /**< DRAM clock speed, in hz */
562         uint32_t spi_clock_hz;  /**< SPI4 clock in hz */
563         uint16_t board_type;
564         uint8_t board_rev_major;
565         uint8_t board_rev_minor;
566         uint16_t chip_type;
567         uint8_t chip_rev_major;
568         uint8_t chip_rev_minor;
569         char board_serial_number[OCTOEN_SERIAL_LEN];
570         uint8_t mac_addr_base[6];
571         uint8_t mac_addr_count;
572         uint64_t cvmx_desc_vaddr;
573 } octeon_boot_descriptor_t;
574
575 static cvmx_bootinfo_t *
576 octeon_process_app_desc_ver_6(octeon_boot_descriptor_t *app_desc_ptr)
577 {
578         cvmx_bootinfo_t *octeon_bootinfo;
579
580         /* XXX Why is 0x00000000ffffffffULL a bad value?  */
581         if (app_desc_ptr->cvmx_desc_vaddr == 0 ||
582             app_desc_ptr->cvmx_desc_vaddr == 0xfffffffful) {
583                 cvmx_safe_printf("Bad octeon_bootinfo %#jx\n",
584                     (uintmax_t)app_desc_ptr->cvmx_desc_vaddr);
585                 return (NULL);
586         }
587
588         octeon_bootinfo = cvmx_phys_to_ptr(app_desc_ptr->cvmx_desc_vaddr);
589         if (octeon_bootinfo->major_version != 1) {
590                 cvmx_safe_printf("Incompatible CVMX descriptor from bootloader: %d.%d %p\n",
591                     (int) octeon_bootinfo->major_version,
592                     (int) octeon_bootinfo->minor_version, octeon_bootinfo);
593                 return (NULL);
594         }
595
596         cvmx_sysinfo_minimal_initialize(octeon_bootinfo->phy_mem_desc_addr,
597                                         octeon_bootinfo->board_type,
598                                         octeon_bootinfo->board_rev_major,
599                                         octeon_bootinfo->board_rev_minor,
600                                         octeon_bootinfo->eclock_hz);
601         memcpy(cvmx_sysinfo_get()->mac_addr_base,
602                octeon_bootinfo->mac_addr_base, 6);
603         cvmx_sysinfo_get()->mac_addr_count = octeon_bootinfo->mac_addr_count;
604         cvmx_sysinfo_get()->compact_flash_common_base_addr = 
605                 octeon_bootinfo->compact_flash_common_base_addr;
606         cvmx_sysinfo_get()->compact_flash_attribute_base_addr = 
607                 octeon_bootinfo->compact_flash_attribute_base_addr;
608         cvmx_sysinfo_get()->core_mask = octeon_bootinfo->core_mask;
609         cvmx_sysinfo_get()->led_display_base_addr =
610                 octeon_bootinfo->led_display_base_addr;
611         memcpy(cvmx_sysinfo_get()->board_serial_number,
612                octeon_bootinfo->board_serial_number,
613                sizeof cvmx_sysinfo_get()->board_serial_number);
614         return (octeon_bootinfo);
615 }
616
617 static void
618 octeon_boot_params_init(register_t ptr)
619 {
620         octeon_boot_descriptor_t *app_desc_ptr;
621         cvmx_bootinfo_t *octeon_bootinfo;
622
623         if (ptr == 0 || ptr >= MAX_APP_DESC_ADDR) {
624                 cvmx_safe_printf("app descriptor passed at invalid address %#jx\n",
625                     (uintmax_t)ptr);
626                 platform_reset();
627         }
628
629         app_desc_ptr = (octeon_boot_descriptor_t *)(intptr_t)ptr;
630         if (app_desc_ptr->desc_version < 6) {
631                 cvmx_safe_printf("Your boot code is too old to be supported.\n");
632                 platform_reset();
633         }
634         octeon_bootinfo = octeon_process_app_desc_ver_6(app_desc_ptr);
635         if (octeon_bootinfo == NULL) {
636                 cvmx_safe_printf("Could not parse boot descriptor.\n");
637                 platform_reset();
638         }
639
640         if (cvmx_sysinfo_get()->led_display_base_addr != 0) {
641                 /*
642                  * Revision 1.x of the EBT3000 only supports 4 characters, but
643                  * other devices support 8.
644                  */
645                 if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 &&
646                     cvmx_sysinfo_get()->board_rev_major == 1)
647                         ebt3000_str_write("FBSD");
648                 else
649                         ebt3000_str_write("FreeBSD!");
650         }
651
652         if (cvmx_sysinfo_get()->phy_mem_desc_addr == (uint64_t)0) {
653                 cvmx_safe_printf("Your boot loader did not supply a memory descriptor.\n");
654                 platform_reset();
655         }
656         cvmx_bootmem_init(cvmx_sysinfo_get()->phy_mem_desc_addr);
657
658         octeon_feature_init();
659
660         __cvmx_helper_cfg_init();
661 }
662 /* impEND: This stuff should move back into the Cavium SDK */