1 /* $NetBSD: kobo_machdep.c,v 1.9 2023/04/20 08:28:05 skrll Exp $ */
2
3 /*
4 * Copyright (c) 2002, 2003, 2005, 2010 Genetec Corporation.
5 * All rights reserved.
6 * Written by Hiroyuki Bessho for Genetec Corporation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 *
29 * Machine dependent functions for kernel setup for RAKUTEN Kobo.
30 * Based on iq80310_machhdep.c
31 */
32 /*
33 * Copyright (c) 2001 Wasabi Systems, Inc.
34 * All rights reserved.
35 *
36 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed for the NetBSD Project by
49 * Wasabi Systems, Inc.
50 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
51 * or promote products derived from this software without specific prior
52 * written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
56 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
57 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
58 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
59 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
60 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
61 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
62 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
63 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
64 * POSSIBILITY OF SUCH DAMAGE.
65 */
66
67 /*
68 * Copyright (c) 1997,1998 Mark Brinicombe.
69 * Copyright (c) 1997,1998 Causality Limited.
70 * All rights reserved.
71 *
72 * Redistribution and use in source and binary forms, with or without
73 * modification, are permitted provided that the following conditions
74 * are met:
75 * 1. Redistributions of source code must retain the above copyright
76 * notice, this list of conditions and the following disclaimer.
77 * 2. Redistributions in binary form must reproduce the above copyright
78 * notice, this list of conditions and the following disclaimer in the
79 * documentation and/or other materials provided with the distribution.
80 * 3. All advertising materials mentioning features or use of this software
81 * must display the following acknowledgement:
82 * This product includes software developed by Mark Brinicombe
83 * for the NetBSD Project.
84 * 4. The name of the company nor the name of the author may be used to
85 * endorse or promote products derived from this software without specific
86 * prior written permission.
87 *
88 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
89 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
90 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
91 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
92 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
93 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
94 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
95 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
96 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
97 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
98 * SUCH DAMAGE.
99 *
100 * Machine dependent functions for kernel setup for Intel IQ80310 evaluation
101 * boards using RedBoot firmware.
102 */
103
104 #include <sys/cdefs.h>
105 __KERNEL_RCSID(0, "$NetBSD: kobo_machdep.c,v 1.9 2023/04/20 08:28:05 skrll Exp $");
106
107 #include "opt_evbarm_boardtype.h"
108 #include "opt_arm_debug.h"
109 #include "opt_console.h"
110 #include "opt_cputypes.h"
111 #include "opt_ddb.h"
112 #include "opt_kgdb.h"
113 #include "opt_md.h"
114 #include "opt_com.h"
115 #include "imxuart.h"
116 #include "opt_imxuart.h"
117 #include "opt_imx.h"
118 #include "opt_machdep.h"
119
120 #include <sys/param.h>
121 #include <sys/device.h>
122 #include <sys/reboot.h>
123 #include <sys/termios.h>
124 #include <sys/bus.h>
125
126 #include <machine/db_machdep.h>
127 #ifdef KGDB
128 #include <sys/kgdb.h>
129 #endif
130
131 #include <machine/bootconfig.h>
132
133 #include <arm/arm32/machdep.h>
134
135 #include <arm/imx/imx51reg.h>
136 #include <arm/imx/imx51var.h>
137 #include <arm/imx/imxuartreg.h>
138 #include <arm/imx/imxuartvar.h>
139 #include <arm/imx/imx50_iomuxreg.h>
140
141 #include <evbarm/kobo/kobo.h>
142 #include <evbarm/kobo/kobo_reg.h>
143
144 /* Kernel text starts 1MB in from the bottom of the kernel address space. */
145 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00100000)
146
147 BootConfig bootconfig; /* Boot config storage */
148 static char bootargs[MAX_BOOT_STRING];
149 char *boot_args = NULL;
150
151 extern char KERNEL_BASE_phys[];
152
153 /* filled in before cleaning bss. keep in .data */
154 u_int uboot_args[4] __attribute__((__section__(".data")));
155
156 /*
157 * Macros to translate between physical and virtual for a subset of the
158 * kernel address space. *Not* for general use.
159 */
160 #define KERNEL_BASE_PHYS ((paddr_t)KERNEL_BASE_phys)
161
162 void consinit(void);
163
164 #ifdef KGDB
165 void kgdb_port_init(void);
166 #endif
167
168 static void init_clocks(void);
169 static void setup_ioports(void);
170
171 #ifndef CONSPEED
172 #define CONSPEED B115200 /* What RedBoot uses */
173 #endif
174 #ifndef CONMODE
175 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
176 #endif
177
178 int comcnspeed = CONSPEED;
179 int comcnmode = CONMODE;
180
181 /*
182 * Static device mappings. These peripheral registers are mapped at
183 * fixed virtual addresses very early in initarm() so that we can use
184 * them while booting the kernel, and stay at the same address
185 * throughout whole kernel's life time.
186 *
187 * We use this table twice; once with bootstrap page table, and once
188 * with kernel's page table which we build up in initarm().
189 *
190 * Since we map these registers into the bootstrap page table using
191 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map
192 * registers segment-aligned and segment-rounded in order to avoid
193 * using the 2nd page tables.
194 */
195
196 const struct pmap_devmap kobo_devmap[] = {
197 DEVMAP_ENTRY(
198 /* for UART2, IOMUXC */
199 KOBO_IO_VBASE0,
200 KOBO_IO_PBASE0,
201 L1_S_SIZE * 4
202 ),
203 DEVMAP_ENTRY_END
204 };
205
206 #ifndef MEMSTART
207 #define MEMSTART 0x70000000
208 #endif
209 #ifndef MEMSIZE
210 #define MEMSIZE 256
211 #endif
212
213 static void
init_clocks(void)214 init_clocks(void)
215 {
216 cortex_pmc_ccnt_init();
217 }
218
219 struct iomux_setup {
220 /* iomux registers are 32-bit wide, but upper 16 bits are not
221 * used. */
222 uint16_t reg;
223 uint16_t val;
224 };
225
226 #define IOMUX_M(padname, mux) \
227 IOMUX_DATA(__CONCAT(IOMUXC_SW_MUX_CTL_PAD_,padname), mux)
228
229 #define IOMUX_P(padname, pad) \
230 IOMUX_DATA(__CONCAT(IOMUXC_SW_PAD_CTL_PAD_,padname), pad)
231
232 #define IOMUX_MP(padname, mux, pad) \
233 IOMUX_M(padname, mux), \
234 IOMUX_P(padname, pad)
235
236 #define IOMUX_DATA(offset, value) \
237 { \
238 .reg = (offset), \
239 .val = (value), \
240 }
241
242 const struct iomux_setup iomux_setup_data[] = {
243 #define HYS PAD_CTL_HYS
244 #define ODE PAD_CTL_ODE
245 #define DSEHIGH PAD_CTL_DSE_HIGH
246 #define DSEMID PAD_CTL_DSE_MID
247 #define DSELOW PAD_CTL_DSE_LOW
248 #define DSEMAX PAD_CTL_DSE_MAX
249 #define SRE PAD_CTL_SRE
250 #define KEEPER PAD_CTL_KEEPER
251 #define PULL PAD_CTL_PULL
252 #define PU_22K PAD_CTL_PUS_22K_PU
253 #define PU_47K PAD_CTL_PUS_47K_PU
254 #define PU_100K PAD_CTL_PUS_100K_PU
255 #define PD_100K PAD_CTL_PUS_100K_PD
256 #define HVE PAD_CTL_HVE /* Low output voltage */
257
258 #define ALT0 IOMUX_CONFIG_ALT0
259 #define ALT1 IOMUX_CONFIG_ALT1
260 #define ALT2 IOMUX_CONFIG_ALT2
261 #define ALT3 IOMUX_CONFIG_ALT3
262 #define ALT4 IOMUX_CONFIG_ALT4
263 #define ALT5 IOMUX_CONFIG_ALT5
264 #define ALT6 IOMUX_CONFIG_ALT6
265 #define ALT7 IOMUX_CONFIG_ALT7
266 #define SION IOMUX_CONFIG_SION
267
268 /* I2C1 */
269 IOMUX_MP(I2C1_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
270 IOMUX_MP(I2C1_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
271
272 /* I2C2 */
273 IOMUX_MP(I2C2_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
274 IOMUX_MP(I2C2_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
275
276 /* I2C3 */
277 IOMUX_MP(I2C3_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
278 IOMUX_MP(I2C3_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
279
280 /* UART2 */
281 IOMUX_MP(UART2_RXD, ALT0, HYS | PULL | DSEHIGH | SRE),
282 IOMUX_MP(UART2_TXD, ALT0, HYS | PULL | DSEHIGH | SRE),
283
284 /* SD1 */
285 IOMUX_MP(SD1_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE),
286 IOMUX_MP(SD1_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE),
287 IOMUX_MP(SD1_D0, ALT0, HVE | PU_22K | DSEMAX | SRE),
288 IOMUX_MP(SD1_D1, ALT0, HVE | PU_22K | DSEMAX | SRE),
289 IOMUX_MP(SD1_D2, ALT0, HVE | PU_22K | DSEMAX | SRE),
290 IOMUX_MP(SD1_D3, ALT0, HVE | PU_22K | DSEMAX | SRE),
291 // IOMUX_MP(SD1_CD, ALT0, HVE | PU_22K | DSEMAX | SRE),
292
293 /* SD2 */
294 IOMUX_MP(SD2_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE),
295 IOMUX_MP(SD2_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE),
296 IOMUX_MP(SD2_D0, ALT0, HVE | PU_22K | DSEMAX | SRE),
297 IOMUX_MP(SD2_D1, ALT0, HVE | PU_22K | DSEMAX | SRE),
298 IOMUX_MP(SD2_D2, ALT0, HVE | PU_22K | DSEMAX | SRE),
299 IOMUX_MP(SD2_D3, ALT0, HVE | PU_22K | DSEMAX | SRE),
300 IOMUX_MP(SD2_CD, ALT0, HVE | PU_22K | DSEMAX | SRE),
301
302 IOMUX_DATA(IOMUXC_ESDHC2_IPP_CARD_DET_SELECT_INPUT, INPUT_DAISY_1),
303
304 /* SD3 */
305 IOMUX_MP(SD3_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE),
306 IOMUX_MP(SD3_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE),
307 IOMUX_MP(SD3_D0, ALT0, HVE | PU_22K | DSEMAX | SRE),
308 IOMUX_MP(SD3_D1, ALT0, HVE | PU_22K | DSEMAX | SRE),
309 IOMUX_MP(SD3_D2, ALT0, HVE | PU_22K | DSEMAX | SRE),
310 IOMUX_MP(SD3_D3, ALT0, HVE | PU_22K | DSEMAX | SRE),
311 // IOMUX_MP(SD3_CD, ALT0, HVE | PU_22K | DSEMAX | SRE),
312
313 /* OTG */
314 IOMUX_M(PWM2, ALT2),
315 // IOMUX_MP(PWM1, ALT2, HYS | KEEPER | DSEHIGH),
316
317 /* EPDC */
318 IOMUX_M(EPDC_D0, ALT0),
319 IOMUX_M(EPDC_D1, ALT0),
320 IOMUX_M(EPDC_D2, ALT0),
321 IOMUX_M(EPDC_D3, ALT0),
322 IOMUX_M(EPDC_D4, ALT0),
323 IOMUX_M(EPDC_D5, ALT0),
324 IOMUX_M(EPDC_D6, ALT0),
325 IOMUX_M(EPDC_D7, ALT0),
326 IOMUX_M(EPDC_GDCLK, ALT0),
327 IOMUX_M(EPDC_GDSP, ALT0),
328 IOMUX_M(EPDC_GDOE, ALT0),
329 IOMUX_M(EPDC_GDRL, ALT0),
330 IOMUX_M(EPDC_SDCLK, ALT0),
331 IOMUX_M(EPDC_SDOE, ALT0),
332 IOMUX_M(EPDC_SDLE, ALT0),
333 IOMUX_M(EPDC_BDR0, ALT0),
334 IOMUX_M(EPDC_BDR1, ALT0),
335 IOMUX_M(EPDC_SDCE0, ALT0),
336
337 IOMUX_M(EPDC_PWRSTAT, ALT1), /* GPIO3[28] */
338 IOMUX_M(EPDC_PWRCTRL0, ALT1), /* GPIO3[29] */
339 IOMUX_M(EPDC_VCOM0, ALT1), /* GPIO4[21] */
340 IOMUX_M(UART4_TXD, ALT1), /* GPIO6[16] */
341 IOMUX_M(UART4_RXD, ALT1), /* GPIO6[17] */
342
343 // IOMUX_M(PWM2, ALT1), /* GPIO6[25] */
344
345 #undef ODE
346 #undef HYS
347 #undef SRE
348 #undef PULL
349 #undef KEEPER
350 #undef PU_22K
351 #undef PU_47K
352 #undef PU_100K
353 #undef PD_100K
354 #undef HVE
355 #undef DSEMAX
356 #undef DSEHIGH
357 #undef DSEMID
358 #undef DSELOW
359
360 #undef ALT0
361 #undef ALT1
362 #undef ALT2
363 #undef ALT3
364 #undef ALT4
365 #undef ALT5
366 #undef ALT6
367 #undef ALT7
368 #undef SION
369 };
370
371 static void
setup_ioports(void)372 setup_ioports(void)
373 {
374 int i;
375 const struct iomux_setup *p;
376
377 for (i=0; i < __arraycount(iomux_setup_data); ++i) {
378 p = iomux_setup_data + i;
379
380 ioreg_write(KOBO_IOMUXC_VBASE + p->reg,
381 p->val);
382 }
383 }
384
385 #ifdef CONSDEVNAME
386 const char consdevname[] = CONSDEVNAME;
387
388 #ifndef CONMODE
389 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
390 #endif
391 #ifndef CONSPEED
392 #define CONSPEED 115200
393 #endif
394
395 int consmode = CONMODE;
396 int consrate = CONSPEED;
397
398 #endif /* CONSDEVNAME */
399
400 #ifndef IMXUART_FREQ
401 #define IMXUART_FREQ 24000000
402 #endif
403
404 /*
405 * vaddr_t initarm(...)
406 *
407 * Initial entry point on startup. This gets called before main() is
408 * entered.
409 * It should be responsible for setting up everything that must be
410 * in place when main is called.
411 * This includes
412 * Taking a copy of the boot configuration structure.
413 * Initialising the physical console so characters can be printed.
414 * Setting up page tables for the kernel
415 */
416 vaddr_t
initarm(void * arg)417 initarm(void *arg)
418 {
419 /*
420 * Heads up ... Setup the CPU / MMU / TLB functions
421 */
422 if (set_cpufuncs()) // starts PMC counter
423 panic("cpu not recognized!");
424
425 extern char ARM_BOOTSTRAP_LxPT[];
426 pmap_devmap_bootstrap((vaddr_t)ARM_BOOTSTRAP_LxPT, kobo_devmap);
427
428 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT);
429
430 setup_ioports();
431
432 consinit();
433
434 init_clocks();
435
436 #ifdef KGDB
437 kgdb_port_init();
438 #endif
439
440 /* Talk to the user */
441 printf("\nNetBSD/evbarm (" ___STRING(EVBARM_BOARDTYPE) ") booting ...\n");
442
443 #ifdef BOOT_ARGS
444 char mi_bootargs[] = BOOT_ARGS;
445 parse_mi_bootargs(mi_bootargs);
446 #endif
447 bootargs[0] = '\0';
448
449 #ifdef VERBOSE_INIT_ARM
450 printf("initarm: Configuring system");
451 printf(", CLIDR=%010o CTR=%#x",
452 armreg_clidr_read(), armreg_ctr_read());
453 printf("\n");
454 #endif
455
456 #ifdef VERBOSE_INIT_ARM
457 printf("initarm: Configuring system ...\n");
458 #endif
459 /*
460 * Set up the variables that define the availability of physical
461 * memory.
462 */
463
464 /* Fake bootconfig structure for the benefit of pmap.c. */
465 bootconfig.dramblocks = 1;
466 bootconfig.dram[0].address = MEMSTART;
467 bootconfig.dram[0].pages = (MEMSIZE * 1024 * 1024) / PAGE_SIZE;
468
469 psize_t ram_size = bootconfig.dram[0].pages * PAGE_SIZE;
470
471 #ifdef __HAVE_MM_MD_DIRECT_MAPPED_PHYS
472 const bool mapallmem_p = true;
473 if (ram_size > (KERNEL_VM_BASE - KERNEL_BASE)) {
474 printf("%s: dropping RAM size from %luMB to %uMB\n",
475 __func__, (unsigned long) (ram_size >> 20),
476 (KERNEL_VM_BASE - KERNEL_BASE) >> 20);
477 ram_size = KERNEL_VM_BASE - KERNEL_BASE;
478 }
479 KASSERT(ram_size <= KERNEL_VM_BASE - KERNEL_BASE);
480 #else
481 const bool mapallmem_p = false;
482 #endif
483
484 arm32_bootmem_init(bootconfig.dram[0].address, ram_size,
485 KERNEL_BASE_PHYS);
486 arm32_kernel_vm_init(KERNEL_VM_BASE, ARM_VECTORS_HIGH, 0,
487 kobo_devmap, mapallmem_p);
488
489 #ifdef BOOTHOWTO
490 boothowto |= BOOTHOWTO;
491 #endif
492
493 return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE, NULL, 0);
494 }
495
496 void
consinit(void)497 consinit(void)
498 {
499 static int consinit_called = 0;
500
501 if (consinit_called)
502 return;
503
504 consinit_called = 1;
505
506 #ifdef CONSDEVNAME
507
508 #if NIMXUART > 0
509 imxuart_set_frequency(IMXUART_FREQ, 2);
510 #endif
511
512 #if (NIMXUART > 0) && defined(IMXUARTCONSOLE)
513 if (strcmp(consdevname, "imxuart") == 0) {
514 paddr_t consaddr;
515 #ifdef CONADDR
516 consaddr = CONADDR;
517 #else
518 consaddr = IMX51_UART2_BASE;
519 #endif
520 imxuart_cnattach(&armv7_generic_bs_tag, consaddr, consrate, consmode);
521 return;
522 }
523 #endif
524
525 #endif
526
527 #if (NWSDISPLAY > 0) && defined(IMXEPDCCONSOLE)
528 #if NUKBD > 0
529 ukbd_cnattach();
530 #endif
531 {
532 extern void kobo_cnattach(void);
533 kobo_cnattach();
534 }
535 #endif
536 }
537
538 #ifdef KGDB
539 #ifndef KGDB_DEVNAME
540 #define KGDB_DEVNAME "imxuart"
541 #endif
542 #ifndef KGDB_DEVMODE
543 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
544 #endif
545
546 const char kgdb_devname[20] = KGDB_DEVNAME;
547 int kgdb_mode = KGDB_DEVMODE;
548 int kgdb_addr = KGDB_DEVADDR;
549 extern int kgdb_rate; /* defined in kgdb_stub.c */
550
551 void
kgdb_port_init(void)552 kgdb_port_init(void)
553 {
554 #if (NIMXUART > 0)
555 if (strcmp(kgdb_devname, "imxuart") == 0) {
556 imxuart_kgdb_attach(&armv7_generic_bs_tag, kgdb_addr,
557 kgdb_rate, kgdb_mode);
558 return;
559 }
560
561 #endif
562 }
563 #endif
564