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407843a5 1/*
034394ab 2 * (C) Copyright 2007-2008
407843a5
MF
3 * Matthias Fuchs, esd Gmbh, matthias.fuchs@esd-electronics.com.
4 *
1a459660 5 * SPDX-License-Identifier: GPL-2.0+
407843a5 6 */
407843a5
MF
7#include <common.h>
8#include <command.h>
24b852a7 9#include <console.h>
407843a5
MF
10#include <asm/io.h>
11#include <asm/cache.h>
12#include <asm/processor.h>
75183b1a
MF
13#if defined(CONFIG_LOGBUFFER)
14#include <logbuff.h>
15#endif
407843a5
MF
16
17#include "pmc440.h"
18
19int is_monarch(void);
034394ab
MF
20int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset,
21 uchar *buffer, unsigned cnt);
407843a5
MF
22int eeprom_write_enable(unsigned dev_addr, int state);
23
24DECLARE_GLOBAL_DATA_PTR;
25
26#if defined(CONFIG_CMD_BSP)
27
28static int got_fifoirq;
29static int got_hcirq;
30
31int fpga_interrupt(u32 arg)
32{
33 pmc440_fpga_t *fpga = (pmc440_fpga_t *)arg;
34 int rc = -1; /* not for us */
35 u32 status = FPGA_IN32(&fpga->status);
36
37 /* check for interrupt from fifo module */
38 if (status & STATUS_FIFO_ISF) {
39 /* disable this int source */
40 FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_FIFOIE_GATE);
41 rc = 0;
42 got_fifoirq = 1; /* trigger backend */
43 }
44
45 if (status & STATUS_HOST_ISF) {
46 FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_HCINT_GATE);
47 rc = 0;
48 got_hcirq = 1;
49 }
50
51 return rc;
52}
53
54841ab5 54int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5
MF
55{
56 pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
57
58 got_hcirq = 0;
59
60 FPGA_CLRBITS(&fpga->ctrla, CTRL_HOST_IE);
61 FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_HCINT_GATE);
62
63 irq_install_handler(IRQ0_FPGA,
64 (interrupt_handler_t *)fpga_interrupt,
65 fpga);
66
67 FPGA_SETBITS(&fpga->ctrla, CTRL_HOST_IE);
68
69 while (!got_hcirq) {
70 /* Abort if ctrl-c was pressed */
71 if (ctrlc()) {
72 puts("\nAbort\n");
73 break;
74 }
75 }
76 if (got_hcirq)
77 printf("Got interrupt!\n");
78
79 FPGA_CLRBITS(&fpga->ctrla, CTRL_HOST_IE);
80 irq_free_handler(IRQ0_FPGA);
81 return 0;
82}
83U_BOOT_CMD(
84 waithci, 1, 1, do_waithci,
2fb2604d 85 "Wait for host control interrupt",
a89c33db
WD
86 ""
87);
407843a5 88
407843a5
MF
89void dump_fifo(pmc440_fpga_t *fpga, int f, int *n)
90{
91 u32 ctrl;
92
93 while (!((ctrl = FPGA_IN32(&fpga->fifo[f].ctrl)) & FIFO_EMPTY)) {
94 printf("%5d %d %3d %08x",
95 (*n)++, f, ctrl & (FIFO_LEVEL_MASK | FIFO_FULL),
96 FPGA_IN32(&fpga->fifo[f].data));
97 if (ctrl & FIFO_OVERFLOW) {
98 printf(" OVERFLOW\n");
99 FPGA_CLRBITS(&fpga->fifo[f].ctrl, FIFO_OVERFLOW);
100 } else
101 printf("\n");
102 }
103}
104
54841ab5 105int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5
MF
106{
107 pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
108 int i;
109 int n = 0;
110 u32 ctrl, data, f;
111 char str[] = "\\|/-";
112 int abort = 0;
113 int count = 0;
114 int count2 = 0;
115
116 switch (argc) {
117 case 1:
118 /* print all fifos status information */
119 printf("fifo level status\n");
120 printf("______________________________\n");
121 for (i=0; i<FIFO_COUNT; i++) {
122 ctrl = FPGA_IN32(&fpga->fifo[i].ctrl);
123 printf(" %d %3d %s%s%s %s\n",
124 i, ctrl & (FIFO_LEVEL_MASK | FIFO_FULL),
125 ctrl & FIFO_FULL ? "FULL " : "",
126 ctrl & FIFO_EMPTY ? "EMPTY " : "",
127 ctrl & (FIFO_FULL|FIFO_EMPTY) ? "" : "NOT EMPTY",
128 ctrl & FIFO_OVERFLOW ? "OVERFLOW" : "");
129 }
130 break;
131
132 case 2:
133 /* completely read out fifo 'n' */
134 if (!strcmp(argv[1],"read")) {
135 printf(" # fifo level data\n");
136 printf("______________________________\n");
137
138 for (i=0; i<FIFO_COUNT; i++)
139 dump_fifo(fpga, i, &n);
140
141 } else if (!strcmp(argv[1],"wait")) {
142 got_fifoirq = 0;
143
144 irq_install_handler(IRQ0_FPGA,
145 (interrupt_handler_t *)fpga_interrupt,
146 fpga);
147
148 printf(" # fifo level data\n");
149 printf("______________________________\n");
150
151 /* enable all fifo interrupts */
152 FPGA_OUT32(&fpga->hostctrl,
153 HOSTCTRL_FIFOIE_GATE | HOSTCTRL_FIFOIE_FLAG);
154 for (i=0; i<FIFO_COUNT; i++) {
155 /* enable interrupts from all fifos */
156 FPGA_SETBITS(&fpga->fifo[i].ctrl, FIFO_IE);
157 }
158
159 while (1) {
160 /* wait loop */
161 while (!got_fifoirq) {
162 count++;
163 if (!(count % 100)) {
164 count2++;
165 putc(0x08); /* backspace */
166 putc(str[count2 % 4]);
167 }
168
169 /* Abort if ctrl-c was pressed */
170 if ((abort = ctrlc())) {
171 puts("\nAbort\n");
172 break;
173 }
174 udelay(1000);
175 }
176 if (abort)
177 break;
178
179 /* simple fifo backend */
180 if (got_fifoirq) {
181 for (i=0; i<FIFO_COUNT; i++)
182 dump_fifo(fpga, i, &n);
183
184 got_fifoirq = 0;
185 /* unmask global fifo irq */
186 FPGA_OUT32(&fpga->hostctrl,
034394ab
MF
187 HOSTCTRL_FIFOIE_GATE |
188 HOSTCTRL_FIFOIE_FLAG);
407843a5
MF
189 }
190 }
191
192 /* disable all fifo interrupts */
193 FPGA_OUT32(&fpga->hostctrl, HOSTCTRL_FIFOIE_GATE);
194 for (i=0; i<FIFO_COUNT; i++)
195 FPGA_CLRBITS(&fpga->fifo[i].ctrl, FIFO_IE);
196
197 irq_free_handler(IRQ0_FPGA);
198
199 } else {
200 printf("Usage:\nfifo %s\n", cmdtp->help);
201 return 1;
202 }
203 break;
204
205 case 4:
206 case 5:
207 if (!strcmp(argv[1],"write")) {
208 /* get fifo number or fifo address */
209 f = simple_strtoul(argv[2], NULL, 16);
210
211 /* data paramter */
212 data = simple_strtoul(argv[3], NULL, 16);
213
214 /* get optional count parameter */
215 n = 1;
216 if (argc >= 5)
217 n = (int)simple_strtoul(argv[4], NULL, 10);
218
219 if (f < FIFO_COUNT) {
220 printf("writing %d x %08x to fifo %d\n",
221 n, data, f);
222 for (i=0; i<n; i++)
223 FPGA_OUT32(&fpga->fifo[f].data, data);
224 } else {
034394ab
MF
225 printf("writing %d x %08x to fifo port at "
226 "address %08x\n",
407843a5
MF
227 n, data, f);
228 for (i=0; i<n; i++)
bb57ad4b 229 out_be32((void *)f, data);
407843a5
MF
230 }
231 } else {
232 printf("Usage:\nfifo %s\n", cmdtp->help);
233 return 1;
234 }
235 break;
236
237 default:
238 printf("Usage:\nfifo %s\n", cmdtp->help);
239 return 1;
240 }
241 return 0;
242}
243U_BOOT_CMD(
244 fifo, 5, 1, do_fifo,
2fb2604d 245 "Fifo module operations",
407843a5
MF
246 "wait\nfifo read\n"
247 "fifo write fifo(0..3) data [cnt=1]\n"
248 "fifo write address(>=4) data [cnt=1]\n"
249 " - without arguments: print all fifo's status\n"
250 " - with 'wait' argument: interrupt driven read from all fifos\n"
251 " - with 'read' argument: read current contents from all fifos\n"
034394ab 252 " - with 'write' argument: write 'data' 'cnt' times to "
a89c33db
WD
253 "'fifo' or 'address'"
254);
407843a5 255
54841ab5 256int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5
MF
257{
258 ulong sdsdp[5];
259 ulong delay;
260 int count=16;
261
262 if (argc < 2) {
263 printf("Usage:\nsbe %s\n", cmdtp->help);
264 return -1;
265 }
266
267 if (argc > 1) {
268 if (!strcmp(argv[1], "400")) {
ff5fb8a6 269 /* PLB=133MHz, PLB/PCI=3 */
407843a5
MF
270 printf("Bootstrapping for 400MHz\n");
271 sdsdp[0]=0x8678624e;
ff5fb8a6 272 sdsdp[1]=0x095fa030;
407843a5
MF
273 sdsdp[2]=0x40082350;
274 sdsdp[3]=0x0d050000;
275 } else if (!strcmp(argv[1], "533")) {
276 /* PLB=133MHz, PLB/PCI=3 */
277 printf("Bootstrapping for 533MHz\n");
278 sdsdp[0]=0x87788252;
279 sdsdp[1]=0x095fa030;
280 sdsdp[2]=0x40082350;
281 sdsdp[3]=0x0d050000;
282 } else if (!strcmp(argv[1], "667")) {
79941d63 283 /* PLB=133MHz, PLB/PCI=3 */
407843a5
MF
284 printf("Bootstrapping for 667MHz\n");
285 sdsdp[0]=0x8778a256;
407843a5
MF
286 sdsdp[1]=0x095fa030;
287 sdsdp[2]=0x40082350;
288 sdsdp[3]=0x0d050000;
289 } else {
290 printf("Usage:\nsbe %s\n", cmdtp->help);
291 return -1;
292 }
293 }
294
295 if (argc > 2) {
296 sdsdp[4] = 0;
297 if (argv[2][0]=='1')
298 sdsdp[4]=0x19750100;
299 else if (argv[2][0]=='0')
300 sdsdp[4]=0x19750000;
301 if (sdsdp[4])
302 count += 4;
303 }
304
305 if (argc > 3) {
306 delay = simple_strtoul(argv[3], NULL, 10);
307 if (delay > 20)
308 delay = 20;
309 sdsdp[4] |= delay;
310 }
311
312 printf("Writing boot EEPROM ...\n");
6d0f6bcf 313 if (bootstrap_eeprom_write(CONFIG_SYS_I2C_BOOT_EEPROM_ADDR,
407843a5
MF
314 0, (uchar*)sdsdp, count) != 0)
315 printf("bootstrap_eeprom_write failed\n");
316 else
317 printf("done (dump via 'i2c md 52 0.1 14')\n");
318
319 return 0;
320}
321U_BOOT_CMD(
322 sbe, 4, 0, do_setup_bootstrap_eeprom,
2fb2604d 323 "setup bootstrap eeprom",
407843a5 324 "<cpufreq:400|533|667> [<console-uart:0|1> [<bringup delay (0..20s)>]]"
a89c33db 325);
407843a5 326
407843a5
MF
327#if defined(CONFIG_PRAM)
328#include <environment.h>
a6569c63
MF
329#include <search.h>
330#include <errno.h>
407843a5 331
54841ab5 332int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5 333{
75183b1a 334 u32 pram, nextbase, base;
407843a5
MF
335 char *v;
336 u32 param;
337 ulong *lptr;
338
a6569c63
MF
339 env_t *envp;
340 char *res;
341 int len;
342
407843a5
MF
343 v = getenv("pram");
344 if (v)
345 pram = simple_strtoul(v, NULL, 10);
346 else {
347 printf("Error: pram undefined. Please define pram in KiB\n");
348 return 1;
349 }
350
f39c5d1e 351 base = (u32)gd->ram_size;
75183b1a
MF
352#if defined(CONFIG_LOGBUFFER)
353 base -= LOGBUFF_LEN + LOGBUFF_OVERHEAD;
354#endif
355 /*
f39c5d1e 356 * gd->ram_size == physical ram size - CONFIG_SYS_MEM_TOP_HIDE
75183b1a
MF
357 */
358 param = base - (pram << 10);
407843a5 359 printf("PARAM: @%08x\n", param);
f39c5d1e 360 debug("memsize=0x%08x, base=0x%08x\n", (u32)gd->ram_size, base);
407843a5 361
75183b1a 362 /* clear entire PA ram */
407843a5 363 memset((void*)param, 0, (pram << 10));
407843a5 364
75183b1a
MF
365 /* reserve 4k for pointer field */
366 nextbase = base - 4096;
367 lptr = (ulong*)(base);
368
369 /*
370 * *(--lptr) = item_size;
371 * *(--lptr) = base - item_base = distance from field top;
372 */
373
374 /* env is first (4k aligned) */
375 nextbase -= ((CONFIG_ENV_SIZE + 4096 - 1) & ~(4096 - 1));
a6569c63
MF
376 envp = (env_t *)nextbase;
377 res = (char *)envp->data;
be11235a 378 len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
a6569c63
MF
379 if (len < 0) {
380 error("Cannot export environment: errno = %d\n", errno);
381 return 1;
382 }
383 envp->crc = crc32(0, envp->data, ENV_SIZE);
384
75183b1a
MF
385 *(--lptr) = CONFIG_ENV_SIZE; /* size */
386 *(--lptr) = base - nextbase; /* offset | type=0 */
407843a5 387
75183b1a
MF
388 /* free section */
389 *(--lptr) = nextbase - param; /* size */
390 *(--lptr) = (base - param) | 126; /* offset | type=126 */
391
392 /* terminate pointer field */
393 *(--lptr) = crc32(0, (void*)(base - 0x10), 0x10);
394 *(--lptr) = 0; /* offset=0 -> terminator */
407843a5
MF
395 return 0;
396}
397U_BOOT_CMD(
398 painit, 1, 1, do_painit,
2fb2604d 399 "prepare PciAccess system",
a89c33db
WD
400 ""
401);
407843a5
MF
402#endif /* CONFIG_PRAM */
403
54841ab5 404int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5 405{
75183b1a 406 in_be32((void*)CONFIG_SYS_RESET_BASE);
407843a5
MF
407 return 0;
408}
409U_BOOT_CMD(
75183b1a 410 selfreset, 1, 1, do_selfreset,
2fb2604d 411 "assert self-reset# signal",
a89c33db
WD
412 ""
413);
407843a5 414
54841ab5 415int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5
MF
416{
417 pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
418
419 /* requiers bootet FPGA and PLD_IOEN_N active */
420 if (in_be32((void*)GPIO1_OR) & GPIO1_IOEN_N) {
421 printf("Error: resetout requires a bootet FPGA\n");
422 return -1;
423 }
424
425 if (argc > 1) {
426 if (argv[1][0] == '0') {
427 /* assert */
428 printf("PMC-RESETOUT# asserted\n");
429 FPGA_OUT32(&fpga->hostctrl,
430 HOSTCTRL_PMCRSTOUT_GATE);
431 } else {
432 /* deassert */
433 printf("PMC-RESETOUT# deasserted\n");
434 FPGA_OUT32(&fpga->hostctrl,
034394ab
MF
435 HOSTCTRL_PMCRSTOUT_GATE |
436 HOSTCTRL_PMCRSTOUT_FLAG);
407843a5
MF
437 }
438 } else {
439 printf("PMC-RESETOUT# is %s\n",
440 FPGA_IN32(&fpga->hostctrl) & HOSTCTRL_PMCRSTOUT_FLAG ?
441 "inactive" : "active");
442 }
443
444 return 0;
445}
446U_BOOT_CMD(
447 resetout, 2, 1, do_resetout,
2fb2604d 448 "assert PMC-RESETOUT# signal",
a89c33db
WD
449 ""
450);
407843a5 451
54841ab5 452int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5
MF
453{
454 if (is_monarch()) {
455 printf("This command is only supported in non-monarch mode\n");
456 return -1;
457 }
458
459 if (argc > 1) {
460 if (argv[1][0] == '0') {
461 /* assert */
462 printf("inta# asserted\n");
463 out_be32((void*)GPIO1_TCR,
464 in_be32((void*)GPIO1_TCR) | GPIO1_INTA_FAKE);
465 } else {
466 /* deassert */
467 printf("inta# deasserted\n");
468 out_be32((void*)GPIO1_TCR,
469 in_be32((void*)GPIO1_TCR) & ~GPIO1_INTA_FAKE);
470 }
471 } else {
034394ab
MF
472 printf("inta# is %s\n",
473 in_be32((void*)GPIO1_TCR) & GPIO1_INTA_FAKE ?
474 "active" : "inactive");
407843a5
MF
475 }
476 return 0;
477}
478U_BOOT_CMD(
479 inta, 2, 1, do_inta,
2fb2604d 480 "Assert/Deassert or query INTA# state in non-monarch mode",
a89c33db
WD
481 ""
482);
407843a5 483
407843a5 484/* test-only */
54841ab5 485int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5
MF
486{
487 ulong pciaddr;
488
489 if (argc > 1) {
490 pciaddr = simple_strtoul(argv[1], NULL, 16);
491
492 pciaddr &= 0xf0000000;
493
494 /* map PCI address at 0xc0000000 in PLB space */
034394ab 495
02e38920 496 /* PMM1 Mask/Attribute - disabled b4 setting */
ddc922ff 497 out32r(PCIL0_PMM1MA, 0x00000000);
02e38920 498 /* PMM1 Local Address */
ddc922ff 499 out32r(PCIL0_PMM1LA, 0xc0000000);
02e38920 500 /* PMM1 PCI Low Address */
ddc922ff 501 out32r(PCIL0_PMM1PCILA, pciaddr);
02e38920 502 /* PMM1 PCI High Address */
ddc922ff 503 out32r(PCIL0_PMM1PCIHA, 0x00000000);
02e38920 504 /* 256MB + No prefetching, and enable region */
ddc922ff 505 out32r(PCIL0_PMM1MA, 0xf0000001);
407843a5
MF
506 } else {
507 printf("Usage:\npmm %s\n", cmdtp->help);
508 }
509 return 0;
510}
511U_BOOT_CMD(
512 pmm, 2, 1, do_pmm,
2fb2604d 513 "Setup pmm[1] registers",
a89c33db
WD
514 "<pciaddr> (pciaddr will be aligned to 256MB)"
515);
407843a5 516
6d0f6bcf 517#if defined(CONFIG_SYS_EEPROM_WREN)
54841ab5 518int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
407843a5
MF
519{
520 int query = argc == 1;
521 int state = 0;
522
523 if (query) {
524 /* Query write access state. */
6d0f6bcf 525 state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, -1);
407843a5
MF
526 if (state < 0) {
527 puts("Query of write access state failed.\n");
528 } else {
529 printf("Write access for device 0x%0x is %sabled.\n",
6d0f6bcf 530 CONFIG_SYS_I2C_EEPROM_ADDR, state ? "en" : "dis");
407843a5
MF
531 state = 0;
532 }
533 } else {
534 if ('0' == argv[1][0]) {
535 /* Disable write access. */
6d0f6bcf 536 state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, 0);
407843a5
MF
537 } else {
538 /* Enable write access. */
6d0f6bcf 539 state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, 1);
407843a5
MF
540 }
541 if (state < 0) {
542 puts("Setup of write access state failed.\n");
543 }
544 }
545
546 return state;
547}
548U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
a89c33db
WD
549 "Enable / disable / query EEPROM write access",
550 ""
551);
6d0f6bcf 552#endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */
407843a5
MF
553
554#endif /* CONFIG_CMD_BSP */