3 * Markus Klotzbuecher, DENX Software Engineering, mk@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * Host Port Interface (HPI)
44 #define _NOT_USED_ 0xFFFFFFFF
47 * - inserted loops to achieve long CS low and high Periods (~217ns)
48 * - move cs high 2/4 to the right
50 const uint dsp_table_slow[] =
52 /* single read (offset 0x00 in upm ram) */
53 0x8fffdc04, 0x0fffdc84, 0x0fffdc84, 0x0fffdc00,
54 0x3fffdc04, 0xffffdc84, 0xffffdc84, 0xffffdc05,
56 /* burst read (offset 0x08 in upm ram) */
57 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
58 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
59 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
60 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
62 /* single write (offset 0x18 in upm ram) */
63 0x8fffd004, 0x0fffd084, 0x0fffd084, 0x3fffd000,
64 0xffffd084, 0xffffd084, 0xffffd005, _NOT_USED_,
66 /* burst write (offset 0x20 in upm ram) */
67 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
68 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
69 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
70 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
71 /* refresh (offset 0x30 in upm ram) */
72 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
73 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
74 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
75 /* exception (offset 0x3C in upm ram) */
76 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
79 /* dsp hpi upm ram table
80 * works fine for noninc access, failes on incremental.
81 * - removed first word
83 const uint dsp_table_fast[] =
85 /* single read (offset 0x00 in upm ram) */
86 0x8fffdc04, 0x0fffdc04, 0x0fffdc00, 0x3fffdc04,
87 0xffffdc05, _NOT_USED_, _NOT_USED_, _NOT_USED_,
89 /* burst read (offset 0x08 in upm ram) */
90 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
91 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
92 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
93 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
95 /* single write (offset 0x18 in upm ram) */
96 0x8fffd004, 0x0fffd004, 0x3fffd000, 0xffffd005,
97 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
99 /* burst write (offset 0x20 in upm ram) */
100 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
101 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
102 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
103 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
104 /* refresh (offset 0x30 in upm ram) */
105 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
106 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
107 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
108 /* exception (offset 0x3C in upm ram) */
109 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
113 #ifdef CONFIG_SPC1920_HPI_TEST
116 #define HPI_TEST_CHUNKSIZE 0x1000
117 #define HPI_TEST_PATTERN 0x00000000
118 #define HPI_TEST_START 0x0
119 #define HPI_TEST_END 0x30000
121 #define TINY_AUTOINC_DATA_SIZE 16 /* 32bit words */
122 #define TINY_AUTOINC_BASE_ADDR 0x0
124 static int hpi_activate(void);
126 static void hpi_inactivate(void);
128 static void dsp_reset(void);
130 static int hpi_write_inc(u32 addr, u32 *data, u32 count);
131 static int hpi_read_inc(u32 addr, u32 *buf, u32 count);
132 static int hpi_write_noinc(u32 addr, u32 data);
133 static u32 hpi_read_noinc(u32 addr);
136 static int hpi_write_addr_test(u32 addr);
137 static int hpi_read_write_test(u32 addr, u32 data);
139 static int hpi_tiny_autoinc_test(void);
140 #endif /* DO_TINY_TEST */
141 #endif /* CONFIG_SPC1920_HPI_TEST */
144 /* init the host port interface on UPMA */
147 volatile immap_t *immr = (immap_t *) CFG_IMMR;
148 volatile memctl8xx_t *memctl = &immr->im_memctl;
149 volatile spc1920_pld_t *pld = (spc1920_pld_t *) CFG_SPC1920_PLD_BASE;
151 upmconfig(UPMA, (uint *)dsp_table_slow, sizeof(dsp_table_slow)/sizeof(uint));
154 memctl->memc_mamr = CFG_MAMR;
155 memctl->memc_or3 = CFG_OR3;
156 memctl->memc_br3 = CFG_BR3;
161 /* activate hpi switch*/
162 pld->dsp_hpi_on = 0x1;
169 #ifdef CONFIG_SPC1920_HPI_TEST
170 /* activate the Host Port interface */
171 static int hpi_activate(void)
173 volatile spc1920_pld_t *pld = (spc1920_pld_t *) CFG_SPC1920_PLD_BASE;
176 pld->dsp_hpi_on = 0x1;
180 /* turn on the power EN_DSP_POWER high*/
181 /* currently always on TBD */
183 /* setup hpi control register */
184 HPI_HPIC_1 = (u16) 0x0008;
185 HPI_HPIC_2 = (u16) 0x0008;
193 /* turn off the host port interface */
194 static void hpi_inactivate(void)
196 volatile spc1920_pld_t *pld = (spc1920_pld_t *) CFG_SPC1920_PLD_BASE;
199 pld->dsp_hpi_on = 0x0;
202 /* pld->dsp_reset = 0x0; */
204 /* turn off the power EN_DSP_POWER# high*/
205 /* currently always on TBD */
211 static void dsp_reset(void)
213 volatile spc1920_pld_t *pld = (spc1920_pld_t *) CFG_SPC1920_PLD_BASE;
214 pld->dsp_reset = 0x1;
215 pld->dsp_hpi_on = 0x0;
219 pld->dsp_reset = 0x0;
220 pld->dsp_hpi_on = 0x1;
224 /* write using autoinc (count is number of 32bit words) */
225 static int hpi_write_inc(u32 addr, u32 *data, u32 count)
230 addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */
231 addr2 = (u16) (addr & 0xffff);
237 debugX(4, "writing from data=0x%lx to 0x%lx\n",
238 (ulong)data, (ulong)(data+count));
240 for(i=0; i<count; i++) {
241 HPI_HPID_INC_1 = (u16) ((data[i] >> 16) & 0xffff);
242 HPI_HPID_INC_2 = (u16) (data[i] & 0xffff);
243 debugX(4, "hpi_write_inc: data1=0x%x, data2=0x%x\n",
244 (u16) ((data[i] >> 16) & 0xffff),
245 (u16) (data[i] & 0xffff));
248 while(data_ptr < (u16*) (data + count)) {
249 HPI_HPID_INC_1 = *(data_ptr++);
250 HPI_HPID_INC_2 = *(data_ptr++);
254 /* return number of bytes written */
259 * read using autoinc (count is number of 32bit words)
261 static int hpi_read_inc(u32 addr, u32 *buf, u32 count)
264 u16 addr1, addr2, data1, data2;
266 addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */
267 addr2 = (u16) (addr & 0xffff);
273 for(i=0; i<count; i++) {
274 data1 = HPI_HPID_INC_1;
275 data2 = HPI_HPID_INC_2;
276 debugX(4, "hpi_read_inc: data1=0x%x, data2=0x%x\n", data1, data2);
277 buf[i] = (((u32) data1) << 16) | (data2 & 0xffff);
281 while(buf_ptr < (u16*) (buf + count)) {
282 *(buf_ptr++) = HPI_HPID_INC_1;
283 *(buf_ptr++) = HPI_HPID_INC_2;
287 /* return number of bytes read */
292 /* write to non- auto inc regs */
293 static int hpi_write_noinc(u32 addr, u32 data)
296 u16 addr1, addr2, data1, data2;
298 addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */
299 addr2 = (u16) (addr & 0xffff);
301 /* printf("hpi_write_noinc: addr1=0x%x, addr2=0x%x\n", addr1, addr2); */
306 data1 = (u16) ((data >> 16) & 0xffff);
307 data2 = (u16) (data & 0xffff);
309 /* printf("hpi_write_noinc: data1=0x%x, data2=0x%x\n", data1, data2); */
311 HPI_HPID_NOINC_1 = data1;
312 HPI_HPID_NOINC_2 = data2;
317 /* read from non- auto inc regs */
318 static u32 hpi_read_noinc(u32 addr)
320 u16 addr1, addr2, data1, data2;
323 addr1 = (u16) ((addr >> 16) & 0xffff); /* First HW is most significant */
324 addr2 = (u16) (addr & 0xffff);
329 /* printf("hpi_read_noinc: addr1=0x%x, addr2=0x%x\n", addr1, addr2); */
331 data1 = HPI_HPID_NOINC_1;
332 data2 = HPI_HPID_NOINC_2;
334 /* printf("hpi_read_noinc: data1=0x%x, data2=0x%x\n", data1, data2); */
336 ret = (((u32) data1) << 16) | (data2 & 0xffff);
342 * Host Port Interface Tests
345 #ifndef HPI_TEST_OSZI
346 /* main test function */
350 u32 i, ii, pattern, tmp;
352 pattern = HPI_TEST_PATTERN;
354 u32 test_data[HPI_TEST_CHUNKSIZE];
355 u32 read_data[HPI_TEST_CHUNKSIZE];
357 debugX(2, "hpi_test: activating hpi...");
362 /* Dump the first 1024 bytes
365 for(i=0; i<1024; i+=4) {
367 printf("\n0x%08x: ", i);
368 printf("0x%08x ", hpi_read_noinc(i));
372 /* HPIA read-write test
375 debugX(1, "hpi_test: starting HPIA read-write tests...\n");
376 err |= hpi_write_addr_test(0xdeadc0de);
377 err |= hpi_write_addr_test(0xbeefd00d);
378 err |= hpi_write_addr_test(0xabcd1234);
379 err |= hpi_write_addr_test(0xaaaaaaaa);
381 debugX(1, "hpi_test: HPIA read-write tests: *** FAILED ***\n");
384 debugX(1, "hpi_test: HPIA read-write tests: OK\n");
387 /* read write test using nonincremental data regs
390 debugX(1, "hpi_test: starting nonincremental tests...\n");
391 for(i=HPI_TEST_START; i<HPI_TEST_END; i+=4) {
392 err |= hpi_read_write_test(i, pattern);
394 /* stolen from cmd_mem.c */
395 if(pattern & 0x80000000) {
396 pattern = -pattern; /* complement & increment */
400 err |= hpi_read_write_test(i, pattern);
403 debugX(1, "hpi_test: nonincremental tests *** FAILED ***\n");
407 debugX(1, "hpi_test: nonincremental test OK\n");
409 /* read write a chunk of data using nonincremental data regs
412 debugX(1, "hpi_test: starting nonincremental chunk tests...\n");
413 pattern = HPI_TEST_PATTERN;
414 for(i=HPI_TEST_START; i<HPI_TEST_END; i+=4) {
415 hpi_write_noinc(i, pattern);
417 /* stolen from cmd_mem.c */
418 if(pattern & 0x80000000) {
419 pattern = -pattern; /* complement & increment */
424 pattern = HPI_TEST_PATTERN;
425 for(i=HPI_TEST_START; i<HPI_TEST_END; i+=4) {
426 tmp = hpi_read_noinc(i);
429 debugX(1, "hpi_test: noninc chunk test *** FAILED *** @ 0x%x, written=0x%x, read=0x%x\n", i, pattern, tmp);
432 /* stolen from cmd_mem.c */
433 if(pattern & 0x80000000) {
434 pattern = -pattern; /* complement & increment */
441 debugX(1, "hpi_test: nonincremental chunk test OK\n");
445 /* small verbose test using autoinc and nonautoinc to compare
448 debugX(1, "hpi_test: tiny_autoinc_test...\n");
449 hpi_tiny_autoinc_test();
450 debugX(1, "hpi_test: tiny_autoinc_test done\n");
451 #endif /* DO_TINY_TEST */
454 /* $%& write a chunk of data using the autoincremental regs
457 debugX(1, "hpi_test: starting autoinc test %d chunks with 0x%x bytes...\n",
458 ((HPI_TEST_END - HPI_TEST_START) / HPI_TEST_CHUNKSIZE),
461 for(i=HPI_TEST_START;
462 i < ((HPI_TEST_END - HPI_TEST_START) / HPI_TEST_CHUNKSIZE);
464 /* generate the pattern data */
465 debugX(3, "generating pattern data: ");
466 for(ii = 0; ii < HPI_TEST_CHUNKSIZE; ii++) {
467 debugX(3, "0x%x ", pattern);
469 test_data[ii] = pattern;
470 read_data[ii] = 0x0; /* zero to be sure */
472 /* stolen from cmd_mem.c */
473 if(pattern & 0x80000000) {
474 pattern = -pattern; /* complement & increment */
481 debugX(2, "Writing autoinc data @ 0x%x\n", i);
482 hpi_write_inc(i, test_data, HPI_TEST_CHUNKSIZE);
484 debugX(2, "Reading autoinc data @ 0x%x\n", i);
485 hpi_read_inc(i, read_data, HPI_TEST_CHUNKSIZE);
488 for(ii = 0; ii < HPI_TEST_CHUNKSIZE; ii++) {
489 debugX(3, "hpi_test_autoinc: @ 0x%x, written=0x%x, read=0x%x", i+ii, test_data[ii], read_data[ii]);
490 if(read_data[ii] != test_data[ii]) {
491 debugX(0, "hpi_test: autoinc test @ 0x%x, written=0x%x, read=0x%x *** FAILED ***\n", i+ii, test_data[ii], read_data[ii]);
496 debugX(1, "hpi_test: autoinc test OK\n");
500 #else /* HPI_TEST_OSZI */
504 u32 read_data[TINY_AUTOINC_DATA_SIZE];
506 unsigned int dummy_data[TINY_AUTOINC_DATA_SIZE] = {
507 0x11112222, 0x33334444, 0x55556666, 0x77778888,
508 0x9999aaaa, 0xbbbbcccc, 0xddddeeee, 0xffff1111,
509 0x00010002, 0x00030004, 0x00050006, 0x00070008,
510 0x0009000a, 0x000b000c, 0x000d000e, 0x000f0001
513 debugX(0, "hpi_test: activating hpi...");
519 debugX(0, " writing to autoinc...\n");
520 hpi_write_inc(TINY_AUTOINC_BASE_ADDR,
521 dummy_data, TINY_AUTOINC_DATA_SIZE);
523 debugX(0, " reading from autoinc...\n");
524 hpi_read_inc(TINY_AUTOINC_BASE_ADDR,
525 read_data, TINY_AUTOINC_DATA_SIZE);
527 for(i=0; i < (TINY_AUTOINC_DATA_SIZE); i++) {
528 debugX(0, " written=0x%x, read(inc)=0x%x\n",
529 dummy_data[i], read_data[i]);
538 /* test if Host Port Address Register can be written correctly */
539 static int hpi_write_addr_test(u32 addr)
543 HPI_HPIA_1 = ((u16) (addr >> 16)); /* First HW is most significant */
544 HPI_HPIA_2 = ((u16) addr);
546 read_back = (((u32) HPI_HPIA_1)<<16) | ((u32) HPI_HPIA_2);
548 if(read_back == addr) {
549 debugX(2, " hpi_write_addr_test OK: written=0x%x, read=0x%x\n",
553 debugX(0, " hpi_write_addr_test *** FAILED ***: written=0x%x, read=0x%x\n",
561 /* test if a simple read/write sequence succeeds */
562 static int hpi_read_write_test(u32 addr, u32 data)
566 hpi_write_noinc(addr, data);
567 read_back = hpi_read_noinc(addr);
569 if(read_back == data) {
570 debugX(2, " hpi_read_write_test: OK, addr=0x%x written=0x%x, read=0x%x\n", addr, data, read_back);
573 debugX(0, " hpi_read_write_test: *** FAILED ***, addr=0x%x written=0x%x, read=0x%x\n", addr, data, read_back);
581 static int hpi_tiny_autoinc_test(void)
584 u32 read_data[TINY_AUTOINC_DATA_SIZE];
585 u32 read_data_noinc[TINY_AUTOINC_DATA_SIZE];
587 unsigned int dummy_data[TINY_AUTOINC_DATA_SIZE] = {
588 0x11112222, 0x33334444, 0x55556666, 0x77778888,
589 0x9999aaaa, 0xbbbbcccc, 0xddddeeee, 0xffff1111,
590 0x00010002, 0x00030004, 0x00050006, 0x00070008,
591 0x0009000a, 0x000b000c, 0x000d000e, 0x000f0001
594 printf(" writing to autoinc...\n");
595 hpi_write_inc(TINY_AUTOINC_BASE_ADDR, dummy_data, TINY_AUTOINC_DATA_SIZE);
597 printf(" reading from autoinc...\n");
598 hpi_read_inc(TINY_AUTOINC_BASE_ADDR, read_data, TINY_AUTOINC_DATA_SIZE);
600 printf(" reading from noinc for comparison...\n");
601 for(i=0; i < (TINY_AUTOINC_DATA_SIZE); i++)
602 read_data_noinc[i] = hpi_read_noinc(TINY_AUTOINC_BASE_ADDR+i*4);
604 for(i=0; i < (TINY_AUTOINC_DATA_SIZE); i++) {
605 printf(" written=0x%x, read(inc)=0x%x, read(noinc)=0x%x\n",
606 dummy_data[i], read_data[i], read_data_noinc[i]);
610 #endif /* DO_TINY_TEST */
612 #endif /* CONFIG_SPC1920_HPI_TEST */