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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / b783edaee8252bfdba3f7b3fd29519a81ce71e42 / . / board / gw8260 / gw8260.c
blob: 7ca19899095dd4229686e5068ae5ad56ad7c0d65 [file] [log] [blame]
wdenkafd7f3d2002-11-03 01:41:26 +0000[diff] [blame]1/*
2 * (C) Copyright 2000
3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
5 *
6 * (C) Copyright 2001
7 * Advent Networks, Inc. <http://www.adventnetworks.com>
8 * Jay Monkman <jtm@smoothsmoothie.com>
9 *
10 * (C) Copyright 2001
11 * Advent Networks, Inc. <http://www.adventnetworks.com>
12 * Oliver Brown <oliverb@alumni.utexas.net>
13 *
14 * See file CREDITS for list of people who contributed to this
15 * project.
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 * MA 02111-1307 USA
31 */
32
33/*********************************************************************/
34/* DESCRIPTION:
35 * This file contains the board routines for the GW8260 board.
36 *
37 * MODULE DEPENDENCY:
38 * None
39 *
40 * RESTRICTIONS/LIMITATIONS:
41 * None
42 *
43 * Copyright (c) 2001, Advent Networks, Inc.
44 */
45/*********************************************************************/
46
47#include <common.h>
48#include <ioports.h>
49#include <mpc8260.h>
50
51/*
52 * I/O Port configuration table
53 *
54 */
55const iop_conf_t iop_conf_tab[4][32] = {
56
57 /* Port A configuration */
58 { /* conf ppar psor pdir podr pdat */
59 /* PA31 */ { 1, 0, 0, 1, 0, 0 }, /* TP14 */
60 /* PA30 */ { 1, 1, 1, 1, 0, 0 }, /* US_RTS */
61 /* PA29 */ { 1, 0, 0, 1, 0, 1 }, /* LSSI_DATA */
62 /* PA28 */ { 1, 0, 0, 1, 0, 1 }, /* LSSI_CLK */
63 /* PA27 */ { 1, 0, 0, 1, 0, 0 }, /* TP12 */
64 /* PA26 */ { 1, 0, 0, 0, 0, 0 }, /* IO_STATUS */
65 /* PA25 */ { 1, 0, 0, 0, 0, 0 }, /* IO_CLOCK */
66 /* PA24 */ { 1, 0, 0, 0, 0, 0 }, /* IO_CONFIG */
67 /* PA23 */ { 1, 0, 0, 0, 0, 0 }, /* IO_DONE */
68 /* PA22 */ { 1, 0, 0, 0, 0, 0 }, /* IO_DATA */
69 /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD3 */
70 /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD2 */
71 /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD1 */
72 /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD0 */
73 /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD0 */
74 /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD1 */
75 /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD2 */
76 /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD3 */
77 /* PA13 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE7 */
78 /* PA12 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE6 */
79 /* PA11 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE5 */
80 /* PA10 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE4 */
81 /* PA9 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE3 */
82 /* PA8 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE2 */
83 /* PA7 */ { 1, 0, 0, 0, 0, 0 }, /* LSSI_IN */
84 /* PA6 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE0 */
85 /* PA5 */ { 1, 0, 0, 1, 0, 0 }, /* DEMOD_RESET_ */
86 /* PA4 */ { 1, 0, 0, 1, 0, 0 }, /* MOD_RESET_ */
87 /* PA3 */ { 1, 0, 0, 1, 0, 0 }, /* IO_RESET */
88 /* PA2 */ { 1, 0, 0, 1, 0, 0 }, /* TX_ENABLE */
89 /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* RX_LOCK */
90 /* PA0 */ { 1, 0, 0, 1, 0, 1 } /* MPC_RESET_ */
91 },
92
93 /* Port B configuration */
94 { /* conf ppar psor pdir podr pdat */
95 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TX_ER */
96 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RX_DV */
97 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FETH0_TX_EN */
98 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RX_ER */
99 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_COL */
100 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_CRS */
101 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD3 */
102 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD2 */
103 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD1 */
104 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD0 */
105 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD0 */
106 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD1 */
107 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD2 */
108 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD3 */
109 /* PB17 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RX_DV */
110 /* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RX_ER */
111 /* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TX_ER */
112 /* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TX_EN */
113 /* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_COL */
114 /* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_CRS */
115 /* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD3 */
116 /* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD2 */
117 /* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD1 */
118 /* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD0 */
119 /* PB7 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD0 */
120 /* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD1 */
121 /* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD2 */
122 /* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD3 */
123 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
124 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
125 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
126 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
127 },
128
129 /* Port C */
130 { /* conf ppar psor pdir podr pdat */
131 /* PC31 */ { 1, 0, 0, 1, 0, 1 }, /* FAST_RESET_ */
132 /* PC30 */ { 1, 0, 0, 1, 0, 1 }, /* FAST_PAUSE_ */
133 /* PC29 */ { 1, 0, 0, 1, 0, 0 }, /* FAST_SLEW1 */
134 /* PC28 */ { 1, 0, 0, 1, 0, 0 }, /* FAST_SLEW0 */
135 /* PC27 */ { 1, 0, 0, 1, 0, 0 }, /* TP13 */
136 /* PC26 */ { 1, 0, 0, 0, 0, 0 }, /* RXDECDFLG */
137 /* PC25 */ { 1, 0, 0, 0, 0, 0 }, /* RXACQFAIL */
138 /* PC24 */ { 1, 0, 0, 0, 0, 0 }, /* RXACQFLG */
139 /* PC23 */ { 1, 0, 0, 1, 0, 0 }, /* WD_TCL */
140 /* PC22 */ { 1, 0, 0, 1, 0, 0 }, /* WD_EN */
141 /* PC21 */ { 1, 0, 0, 1, 0, 0 }, /* US_TXCLK */
142 /* PC20 */ { 1, 0, 0, 0, 0, 0 }, /* DS_RXCLK */
143 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RX_CLK */
144 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_TX_CLK */
145 /* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RX_CLK */
146 /* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_TX_CLK */
147 /* PC15 */ { 1, 0, 0, 1, 0, 0 }, /* TX_SHUTDOWN_ */
148 /* PC14 */ { 1, 0, 0, 0, 0, 0 }, /* RS_232_DTR_ */
149 /* PC13 */ { 1, 0, 0, 0, 0, 0 }, /* TXERR */
150 /* PC12 */ { 1, 0, 0, 1, 0, 1 }, /* FETH1_MDDIS */
151 /* PC11 */ { 1, 0, 0, 1, 0, 1 }, /* FETH0_MDDIS */
152 /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* MDC */
153 /* PC9 */ { 1, 0, 0, 1, 1, 1 }, /* MDIO */
154 /* PC8 */ { 1, 0, 0, 1, 1, 1 }, /* SER_NUM */
155 /* PC7 */ { 1, 1, 0, 0, 0, 0 }, /* US_CTS */
156 /* PC6 */ { 1, 1, 0, 0, 0, 0 }, /* DS_CD_ */
157 /* PC5 */ { 1, 0, 0, 1, 0, 0 }, /* FETH1_PWRDWN */
158 /* PC4 */ { 1, 0, 0, 1, 0, 0 }, /* FETH0_PWRDWN */
159 /* PC3 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED3 */
160 /* PC2 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED2 */
161 /* PC1 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED1 */
162 /* PC0 */ { 1, 0, 0, 1, 0, 1 }, /* MPULED0 */
163 },
164
165 /* Port D */
166 { /* conf ppar psor pdir podr pdat */
167 /* PD31 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
168 /* PD30 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
169 /* PD29 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
170 /* PD28 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
171 /* PD27 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
172 /* PD26 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
173 /* PD25 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
174 /* PD24 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
175 /* PD23 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
176 /* PD22 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
177 /* PD21 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
178 /* PD20 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
179 /* PD19 */ { 1, 1, 1, 0, 0, 0 }, /* not used */
180 /* PD18 */ { 1, 1, 1, 0, 0, 0 }, /* not used */
181 /* PD17 */ { 1, 1, 1, 0, 0, 0 }, /* not used */
182 /* PD16 */ { 1, 1, 1, 0, 0, 0 }, /* not used */
183 /* PD15 */ { 1, 1, 1, 0, 1, 1 }, /* SDRAM_SDA */
184 /* PD14 */ { 1, 1, 1, 0, 1, 1 }, /* SDRAM_SCL */
185 /* PD13 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED7 */
186 /* PD12 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED6 */
187 /* PD11 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED5 */
188 /* PD10 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED4 */
189 /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* RS232_TXD */
190 /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* RD232_RXD */
191 /* PD7 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
192 /* PD6 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
193 /* PD5 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
194 /* PD4 */ { 1, 0, 0, 0, 0, 0 }, /* not used */
195 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
196 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
197 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
198 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
199 }
200};
201
202/*********************************************************************/
203/* NAME: checkboard() - Displays the board type and serial number */
204/* */
205/* OUTPUTS: */
206/* Displays the board type and serial number */
207/* */
208/* RETURNS: */
209/* Always returns 1 */
210/* */
211/* RESTRICTIONS/LIMITATIONS: */
212/* */
213/* */
214/*********************************************************************/
215int checkboard(void)
216{
217 char *str;
218 puts ("Board: Advent Networks gw8260\n");
219
220 str = getenv("serial#");
221 if (str != NULL) {
222 printf("SN: %s\n", str);
223 }
224 return 0;
225}
226
227
228#if defined (CFG_DRAM_TEST)
229/*********************************************************************/
230/* NAME: move64() - moves a double word (64-bit) */
231/* */
232/* DESCRIPTION: */
233/* this function performs a double word move from the data at */
234/* the source pointer to the location at the destination pointer. */
235/* */
236/* INPUTS: */
237/* unsigned long long *src - pointer to data to move */
238/* */
239/* OUTPUTS: */
240/* unsigned long long *dest - pointer to locate to move data */
241/* */
242/* RETURNS: */
243/* None */
244/* */
245/* RESTRICTIONS/LIMITATIONS: */
246/* May cloober fr0. */
247/* */
248/*********************************************************************/
249static void move64(unsigned long long *src, unsigned long long *dest)
250{
251 asm ("lfd 0, 0(3)\n\t" /* fpr0 = *scr */
252 "stfd 0, 0(4)" /* *dest = fpr0 */
253 : : : "fr0" ); /* Clobbers fr0 */
254 return;
255}
256
257
258#if defined (CFG_DRAM_TEST_DATA)
259
260unsigned long long pattern[]= {
261 0xaaaaaaaaaaaaaaaa,
262 0xcccccccccccccccc,
263 0xf0f0f0f0f0f0f0f0,
264 0xff00ff00ff00ff00,
265 0xffff0000ffff0000,
266 0xffffffff00000000,
267 0x00000000ffffffff,
268 0x0000ffff0000ffff,
269 0x00ff00ff00ff00ff,
270 0x0f0f0f0f0f0f0f0f,
271 0x3333333333333333,
272 0x5555555555555555};
273
274/*********************************************************************/
275/* NAME: mem_test_data() - test data lines for shorts and opens */
276/* */
277/* DESCRIPTION: */
278/* Tests data lines for shorts and opens by forcing adjacent data */
279/* to opposite states. Because the data lines could be routed in */
280/* an arbitrary manner the must ensure test patterns ensure that */
281/* every case is tested. By using the following series of binary */
282/* patterns every combination of adjacent bits is test regardless */
283/* of routing. */
284/* */
285/* ...101010101010101010101010 */
286/* ...110011001100110011001100 */
287/* ...111100001111000011110000 */
288/* ...111111110000000011111111 */
289/* */
290/* Carrying this out, gives us six hex patterns as follows: */
291/* */
292/* 0xaaaaaaaaaaaaaaaa */
293/* 0xcccccccccccccccc */
294/* 0xf0f0f0f0f0f0f0f0 */
295/* 0xff00ff00ff00ff00 */
296/* 0xffff0000ffff0000 */
297/* 0xffffffff00000000 */
298/* */
299/* The number test patterns will always be given by: */
300/* */
301/* log(base 2)(number data bits) = log2 (64) = 6 */
302/* */
303/* To test for short and opens to other signals on our boards. we */
304/* simply */
305/* test with the 1's complemnt of the paterns as well. */
306/* */
307/* OUTPUTS: */
308/* Displays failing test pattern */
309/* */
310/* RETURNS: */
311/* 0 - Passed test */
312/* 1 - Failed test */
313/* */
314/* RESTRICTIONS/LIMITATIONS: */
315/* Assumes only one one SDRAM bank */
316/* */
317/*********************************************************************/
318int mem_test_data(void)
319{
320 unsigned long long * pmem =
321 (unsigned long long *)CFG_SDRAM_BASE ;
322 unsigned long long temp64;
323 int num_patterns = sizeof(pattern)/ sizeof(pattern[0]);
324 int i;
325 unsigned int hi, lo;
326
327 for ( i = 0; i < num_patterns; i++) {
328 move64(&(pattern[i]), pmem);
329 move64(pmem, &temp64);
330
331 /* hi = (temp64>>32) & 0xffffffff; */
332 /* lo = temp64 & 0xffffffff; */
333 /* printf("\ntemp64 = 0x%08x%08x", hi, lo); */
334
335 hi = (pattern[i]>>32) & 0xffffffff;
336 lo = pattern[i] & 0xffffffff;
337 /* printf("\npattern[%d] = 0x%08x%08x", i, hi, lo); */
338
339 if (temp64 != pattern[i]){
340 printf ("\n Data Test Failed, pattern 0x%08x%08x", hi, lo);
341 return 1;
342 }
343 }
344
345 return 0;
346}
347#endif /* CFG_DRAM_TEST_DATA */
348
349#if defined (CFG_DRAM_TEST_ADDRESS)
350/*********************************************************************/
351/* NAME: mem_test_address() - test address lines */
352/* */
353/* DESCRIPTION: */
354/* This function performs a test to verify that each word im */
355/* memory is uniquly addressable. The test sequence is as follows: */
356/* */
357/* 1) write the address of each word to each word. */
358/* 2) verify that each location equals its address */
359/* */
360/* OUTPUTS: */
361/* Displays failing test pattern and address */
362/* */
363/* RETURNS: */
364/* 0 - Passed test */
365/* 1 - Failed test */
366/* */
367/* RESTRICTIONS/LIMITATIONS: */
368/* */
369/* */
370/*********************************************************************/
371int mem_test_address(void)
372{
373 volatile unsigned int * pmem = (volatile unsigned int *)CFG_SDRAM_BASE ;
374 const unsigned int size = (CFG_SDRAM_SIZE * 1024 * 1024)/4;
375 unsigned int i;
376
377 /* write address to each location */
378 for ( i = 0; i < size; i++) {
379 pmem[i] = i;
380 }
381
382 /* verify each loaction */
383 for ( i = 0; i < size; i++) {
384 if (pmem[i] != i) {
385 printf("\n Address Test Failed at 0x%x", i);
386 return 1;
387 }
388 }
389 return 0;
390}
391#endif /* CFG_DRAM_TEST_ADDRESS */
392
393#if defined (CFG_DRAM_TEST_WALK)
394/*********************************************************************/
395/* NAME: mem_march() - memory march */
396/* */
397/* DESCRIPTION: */
398/* Marches up through memory. At each location verifies rmask if */
399/* read = 1. At each location write wmask if write = 1. Displays */
400/* failing address and pattern. */
401/* */
402/* INPUTS: */
403/* volatile unsigned long long * base - start address of test */
404/* unsigned int size - number of dwords(64-bit) to test */
405/* unsigned long long rmask - read verify mask */
406/* unsigned long long wmask - wrtie verify mask */
407/* short read - verifies rmask if read = 1 */
408/* short write - writes wmask if write = 1 */
409/* */
410/* OUTPUTS: */
411/* Displays failing test pattern and address */
412/* */
413/* RETURNS: */
414/* 0 - Passed test */
415/* 1 - Failed test */
416/* */
417/* RESTRICTIONS/LIMITATIONS: */
418/* */
419/* */
420/*********************************************************************/
421int mem_march(volatile unsigned long long * base,
422 unsigned int size,
423 unsigned long long rmask,
424 unsigned long long wmask,
425 short read,
426 short write)
427{
428 unsigned int i;
429 unsigned long long temp;
430 unsigned int hitemp, lotemp, himask, lomask;
431
432 for (i = 0 ; i < size ; i++) {
433 if (read != 0) {
434 /* temp = base[i]; */
435 move64 ((unsigned long long *)&(base[i]), &temp);
436 if (rmask != temp) {
437 hitemp = (temp>>32) & 0xffffffff;
438 lotemp = temp & 0xffffffff;
439 himask = (rmask>>32) & 0xffffffff;
440 lomask = rmask & 0xffffffff;
441
442 printf("\n Walking one's test failed: address = 0x%08x,"
443 "\n\texpected 0x%08x%08x, found 0x%08x%08x",
444 i<<3, himask, lomask, hitemp, lotemp);
445 return 1;
446 }
447 }
448 if ( write != 0 ) {
449 /* base[i] = wmask; */
450 move64 (&wmask, (unsigned long long *)&(base[i]));
451 }
452 }
453 return 0;
454}
455#endif /* CFG_DRAM_TEST_WALK */
456
457/*********************************************************************/
458/* NAME: mem_test_walk() - a simple walking ones test */
459/* */
460/* DESCRIPTION: */
461/* Performs a walking ones through entire physical memory. The */
462/* test uses as series of memory marches, mem_march(), to verify */
463/* and write the test patterns to memory. The test sequence is as */
464/* follows: */
465/* 1) march writing 0000...0001 */
466/* 2) march verifying 0000...0001 , writing 0000...0010 */
467/* 3) repeat step 2 shifting masks left 1 bit each time unitl */
468/* the write mask equals 1000...0000 */
469/* 4) march verifying 1000...0000 */
470/* The test fails if any of the memory marches return a failure. */
471/* */
472/* OUTPUTS: */
473/* Displays which pass on the memory test is executing */
474/* */
475/* RETURNS: */
476/* 0 - Passed test */
477/* 1 - Failed test */
478/* */
479/* RESTRICTIONS/LIMITATIONS: */
480/* */
481/* */
482/*********************************************************************/
483int mem_test_walk(void)
484{
485 unsigned long long mask;
486 volatile unsigned long long * pmem =
487 (volatile unsigned long long *)CFG_SDRAM_BASE ;
488 const unsigned long size = (CFG_SDRAM_SIZE * 1024 * 1024)/8;
489
490 unsigned int i;
491 mask = 0x01;
492
493 printf("Initial Pass");
494 mem_march(pmem,size,0x0,0x1,0,1);
495
496 printf("\b\b\b\b\b\b\b\b\b\b\b\b");
497 printf(" ");
498 printf("\b\b\b\b\b\b\b\b\b\b\b\b");
499
500 for (i = 0 ; i < 63 ; i++) {
501 printf("Pass %2d", i+2);
502 if ( mem_march(pmem,size, mask,mask << 1, 1, 1) != 0 ){
503 /*printf("mask: 0x%x, pass: %d, ", mask, i);*/
504 return 1;
505 }
506 mask = mask<<1;
507 printf("\b\b\b\b\b\b\b");
508 }
509
510 printf("Last Pass");
511 if (mem_march(pmem, size, 0, mask, 0, 1) != 0) {
512 /* printf("mask: 0x%x", mask); */
513 return 1;
514 }
515 printf("\b\b\b\b\b\b\b\b\b");
516 printf(" ");
517 printf("\b\b\b\b\b\b\b\b\b");
518
519 return 0;
520}
521
522/*********************************************************************/
523/* NAME: testdram() - calls any enabled memory tests */
524/* */
525/* DESCRIPTION: */
526/* Runs memory tests if the environment test variables are set to */
527/* 'y'. */
528/* */
529/* INPUTS: */
530/* testdramdata - If set to 'y', data test is run. */
531/* testdramaddress - If set to 'y', address test is run. */
532/* testdramwalk - If set to 'y', walking ones test is run */
533/* */
534/* OUTPUTS: */
535/* None */
536/* */
537/* RETURNS: */
538/* 0 - Passed test */
539/* 1 - Failed test */
540/* */
541/* RESTRICTIONS/LIMITATIONS: */
542/* */
543/* */
544/*********************************************************************/
545int testdram(void)
546{
547 char *s;
548 int rundata, runaddress, runwalk;
549
550 s = getenv ("testdramdata");
551 rundata = (s && (*s == 'y')) ? 1 : 0;
552 s = getenv ("testdramaddress");
553 runaddress = (s && (*s == 'y')) ? 1 : 0;
554 s = getenv ("testdramwalk");
555 runwalk = (s && (*s == 'y')) ? 1 : 0;
556
557 if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) {
558 printf("Testing RAM ... ");
559 }
560#ifdef CFG_DRAM_TEST_DATA
561 if (rundata == 1) {
562 if (mem_test_data() == 1){
563 return 1;
564 }
565 }
566#endif
567#ifdef CFG_DRAM_TEST_ADDRESS
568 if (runaddress == 1) {
569 if (mem_test_address() == 1){
570 return 1;
571 }
572 }
573#endif
574#ifdef CFG_DRAM_TEST_WALK
575 if (runwalk == 1) {
576 if (mem_test_walk() == 1){
577 return 1;
578 }
579 }
580#endif
581 if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) {
582 printf("passed");
583 }
584 return 0;
585
586}
587#endif /* CFG_DRAM_TEST */
588
589/*********************************************************************/
590/* NAME: initdram() - initializes SDRAM controller */
591/* */
592/* DESCRIPTION: */
593/* Initializes the MPC8260's SDRAM controller. */
594/* */
595/* INPUTS: */
596/* CFG_IMMR - MPC8260 Internal memory map */
597/* CFG_SDRAM_BASE - Physical start address of SDRAM */
598/* CFG_PSDMR - SDRAM mode register */
599/* CFG_MPTPR - Memory refresh timer prescaler register */
600/* CFG_SDRAM0_SIZE - SDRAM size */
601/* */
602/* RETURNS: */
603/* SDRAM size in bytes */
604/* */
605/* RESTRICTIONS/LIMITATIONS: */
606/* */
607/* */
608/*********************************************************************/
609long int initdram(int board_type)
610{
611 volatile immap_t *immap = (immap_t *)CFG_IMMR;
612 volatile memctl8260_t *memctl = &immap->im_memctl;
613 volatile uchar c = 0, *ramaddr = (uchar *)(CFG_SDRAM_BASE + 0x8);
614 ulong psdmr = CFG_PSDMR;
615 int i;
616
617 /*
618 * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
619 *
620 * "At system reset, initialization software must set up the
621 * programmable parameters in the memory controller banks registers
622 * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
623 * system software should execute the following initialization sequence
624 * for each SDRAM device.
625 *
626 * 1. Issue a PRECHARGE-ALL-BANKS command
627 * 2. Issue eight CBR REFRESH commands
628 * 3. Issue a MODE-SET command to initialize the mode register
629 *
630 * The initial commands are executed by setting P/LSDMR[OP] and
631 * accessing the SDRAM with a single-byte transaction."
632 *
633 * The appropriate BRx/ORx registers have already been set when we
634 * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
635 */
636
637 memctl->memc_psrt = CFG_PSRT;
638 memctl->memc_mptpr = CFG_MPTPR;
639
640 memctl->memc_psdmr = psdmr | PSDMR_OP_PREA;
641 *ramaddr = c;
642
643 memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR;
644 for (i = 0; i < 8; i++){
645 *ramaddr = c;
646 }
647 memctl->memc_psdmr = psdmr | PSDMR_OP_MRW;
648 *ramaddr = c;
649
650 memctl->memc_psdmr = psdmr | PSDMR_OP_NORM | PSDMR_RFEN;
651 *ramaddr = c;
652
653 /* return total ram size */
654 return (CFG_SDRAM0_SIZE * 1024 * 1024);
655}
656
657/*********************************************************************/
658/* End of gw8260.c */
659/*********************************************************************/