2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@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,
34 /* ------------------------------------------------------------------------- */
36 static long int dram_size (long int, long int *, long int);
38 /* ------------------------------------------------------------------------- */
40 #define _NOT_USED_ 0xFFFFFFFF
42 const uint sdram_table[] =
45 * Single Read. (Offset 0 in UPMA RAM)
47 0x1F0DFC04, 0xEEAFBC04, 0x11AF7C04, 0xEFBAFC00,
48 0x1FF5FC47, /* last */
50 * SDRAM Initialization (offset 5 in UPMA RAM)
52 * This is no UPM entry point. The following definition uses
53 * the remaining space to establish an initialization
54 * sequence, which is executed by a RUN command.
57 0x1FF5FC34, 0xEFEABC34, 0x1FB57C35, /* last */
59 * Burst Read. (Offset 8 in UPMA RAM)
61 0x1F0DFC04, 0xEEAFBC04, 0x10AF7C04, 0xF0AFFC00,
62 0xF0AFFC00, 0xF1AFFC00, 0xEFBAFC00, 0x1FF5FC47, /* last */
63 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
64 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
66 * Single Write. (Offset 18 in UPMA RAM)
68 0x1F0DFC04, 0xEEABBC00, 0x01B27C04, 0x1FF5FC47, /* last */
69 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
71 * Burst Write. (Offset 20 in UPMA RAM)
73 0x1F0DFC04, 0xEEABBC00, 0x10A77C00, 0xF0AFFC00,
74 0xF0AFFC00, 0xE1BAFC04, 0x1FF5FC47, /* last */
76 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
77 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
79 * Refresh (Offset 30 in UPMA RAM)
81 0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
82 0xFFFFFC84, 0xFFFFFC07, /* last */
83 _NOT_USED_, _NOT_USED_,
84 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
86 * Exception. (Offset 3c in UPMA RAM)
88 0x7FFFFC07, /* last */
89 _NOT_USED_, _NOT_USED_, _NOT_USED_,
92 /* ------------------------------------------------------------------------- */
96 * Check Board Identity:
98 * Test TQ ID string (TQM8xx...)
99 * If present, check for "L" type (no second DRAM bank),
100 * otherwise "L" type is assumed as default.
102 * Set board_type to 'L' for "L" type, 'M' for "M" type, 0 else.
105 int checkboard (void)
107 DECLARE_GLOBAL_DATA_PTR;
109 unsigned char *s = getenv ("serial#");
113 if (!s || strncmp (s, "TQM8", 4)) {
114 puts ("### No HW ID - assuming TQM8xxL\n");
118 if ((*(s + 6) == 'L')) { /* a TQM8xxL type */
119 gd->board_type = 'L';
122 if ((*(s + 6) == 'M')) { /* a TQM8xxM type */
123 gd->board_type = 'M';
131 #if defined(CFG_866_CPUCLK_MIN) && defined(CFG_866_CPUCLK_MAX)
132 printf (" [%d.%d...%d.%d MHz]",
133 CFG_866_CPUCLK_MIN / 1000000,
134 ((CFG_866_CPUCLK_MIN % 1000000) + 50000) / 100000,
135 CFG_866_CPUCLK_MAX / 1000000,
136 ((CFG_866_CPUCLK_MAX % 1000000) + 50000) / 100000
144 /* ------------------------------------------------------------------------- */
146 long int initdram (int board_type)
148 volatile immap_t *immap = (immap_t *) CFG_IMMR;
149 volatile memctl8xx_t *memctl = &immap->im_memctl;
150 long int size8, size9, size10;
151 long int size_b0 = 0;
152 long int size_b1 = 0;
154 upmconfig (UPMA, (uint *) sdram_table,
155 sizeof (sdram_table) / sizeof (uint));
158 * Preliminary prescaler for refresh (depends on number of
159 * banks): This value is selected for four cycles every 62.4 us
160 * with two SDRAM banks or four cycles every 31.2 us with one
161 * bank. It will be adjusted after memory sizing.
163 memctl->memc_mptpr = CFG_MPTPR_2BK_8K;
166 * The following value is used as an address (i.e. opcode) for
167 * the LOAD MODE REGISTER COMMAND during SDRAM initialisation. If
168 * the port size is 32bit the SDRAM does NOT "see" the lower two
169 * address lines, i.e. mar=0x00000088 -> opcode=0x00000022 for
172 * | | | | +- Burst Length = 4
173 * | | | +----- Burst Type = Sequential
174 * | | +------- CAS Latency = 2
175 * | +----------- Operating Mode = Standard
176 * +-------------- Write Burst Mode = Programmed Burst Length
178 memctl->memc_mar = 0x00000088;
181 * Map controller banks 2 and 3 to the SDRAM banks 2 and 3 at
182 * preliminary addresses - these have to be modified after the
183 * SDRAM size has been determined.
185 memctl->memc_or2 = CFG_OR2_PRELIM;
186 memctl->memc_br2 = CFG_BR2_PRELIM;
188 #ifndef CONFIG_CAN_DRIVER
189 if ((board_type != 'L') &&
190 (board_type != 'M') ) { /* "L" and "M" type boards have only one bank SDRAM */
191 memctl->memc_or3 = CFG_OR3_PRELIM;
192 memctl->memc_br3 = CFG_BR3_PRELIM;
194 #endif /* CONFIG_CAN_DRIVER */
196 memctl->memc_mamr = CFG_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
200 /* perform SDRAM initializsation sequence */
202 memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */
204 memctl->memc_mcr = 0x80004230; /* SDRAM bank 0 - execute twice */
207 #ifndef CONFIG_CAN_DRIVER
208 if ((board_type != 'L') &&
209 (board_type != 'M') ) { /* "L" and "M" type boards have only one bank SDRAM */
210 memctl->memc_mcr = 0x80006105; /* SDRAM bank 1 */
212 memctl->memc_mcr = 0x80006230; /* SDRAM bank 1 - execute twice */
215 #endif /* CONFIG_CAN_DRIVER */
217 memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
222 * Check Bank 0 Memory Size for re-configuration
226 size8 = dram_size (CFG_MAMR_8COL, (ulong *) SDRAM_BASE2_PRELIM,
228 debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size8 >> 20);
235 size9 = dram_size (CFG_MAMR_9COL, (ulong *) SDRAM_BASE2_PRELIM,
237 debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size9 >> 20);
241 #if defined(CFG_MAMR_10COL)
245 size10 = dram_size (CFG_MAMR_10COL, (ulong *) SDRAM_BASE2_PRELIM,
247 debug ("SDRAM Bank 0 in 10 column mode: %ld MB\n", size10 >> 20);
250 #endif /* CFG_MAMR_10COL */
252 if ((size8 < size10) && (size9 < size10)) {
254 } else if ((size8 < size9) && (size10 < size9)) {
256 memctl->memc_mamr = CFG_MAMR_9COL;
260 memctl->memc_mamr = CFG_MAMR_8COL;
263 debug ("SDRAM Bank 0: %ld MB\n", size_b0 >> 20);
265 #ifndef CONFIG_CAN_DRIVER
266 if ((board_type != 'L') &&
267 (board_type != 'M') ) { /* "L" and "M" type boards have only one bank SDRAM */
269 * Check Bank 1 Memory Size
270 * use current column settings
271 * [9 column SDRAM may also be used in 8 column mode,
272 * but then only half the real size will be used.]
274 size_b1 = dram_size (memctl->memc_mamr, (ulong *) SDRAM_BASE3_PRELIM,
276 debug ("SDRAM Bank 1: %ld MB\n", size_b1 >> 20);
280 #endif /* CONFIG_CAN_DRIVER */
285 * Adjust refresh rate depending on SDRAM type, both banks
286 * For types > 128 MBit leave it at the current (fast) rate
288 if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) {
289 /* reduce to 15.6 us (62.4 us / quad) */
290 memctl->memc_mptpr = CFG_MPTPR_2BK_4K;
295 * Final mapping: map bigger bank first
297 if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */
299 memctl->memc_or3 = ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
300 memctl->memc_br3 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
304 * Position Bank 0 immediately above Bank 1
306 memctl->memc_or2 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
307 memctl->memc_br2 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
317 memctl->memc_br2 = 0;
319 /* adjust refresh rate depending on SDRAM type, one bank */
320 reg = memctl->memc_mptpr;
321 reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
322 memctl->memc_mptpr = reg;
325 } else { /* SDRAM Bank 0 is bigger - map first */
327 memctl->memc_or2 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
329 (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
333 * Position Bank 1 immediately above Bank 0
336 ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
338 ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
343 #ifndef CONFIG_CAN_DRIVER
349 memctl->memc_br3 = 0;
350 #endif /* CONFIG_CAN_DRIVER */
352 /* adjust refresh rate depending on SDRAM type, one bank */
353 reg = memctl->memc_mptpr;
354 reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
355 memctl->memc_mptpr = reg;
361 #ifdef CONFIG_CAN_DRIVER
362 /* Initialize OR3 / BR3 */
363 memctl->memc_or3 = CFG_OR3_CAN;
364 memctl->memc_br3 = CFG_BR3_CAN;
366 /* Initialize MBMR */
367 memctl->memc_mbmr = MBMR_GPL_B4DIS; /* GPL_B4 ouput line Disable */
369 /* Initialize UPMB for CAN: single read */
370 memctl->memc_mdr = 0xFFFFC004;
371 memctl->memc_mcr = 0x0100 | UPMB;
373 memctl->memc_mdr = 0x0FFFD004;
374 memctl->memc_mcr = 0x0101 | UPMB;
376 memctl->memc_mdr = 0x0FFFC000;
377 memctl->memc_mcr = 0x0102 | UPMB;
379 memctl->memc_mdr = 0x3FFFC004;
380 memctl->memc_mcr = 0x0103 | UPMB;
382 memctl->memc_mdr = 0xFFFFDC05;
383 memctl->memc_mcr = 0x0104 | UPMB;
385 /* Initialize UPMB for CAN: single write */
386 memctl->memc_mdr = 0xFFFCC004;
387 memctl->memc_mcr = 0x0118 | UPMB;
389 memctl->memc_mdr = 0xCFFCD004;
390 memctl->memc_mcr = 0x0119 | UPMB;
392 memctl->memc_mdr = 0x0FFCC000;
393 memctl->memc_mcr = 0x011A | UPMB;
395 memctl->memc_mdr = 0x7FFCC004;
396 memctl->memc_mcr = 0x011B | UPMB;
398 memctl->memc_mdr = 0xFFFDCC05;
399 memctl->memc_mcr = 0x011C | UPMB;
400 #endif /* CONFIG_CAN_DRIVER */
402 #ifdef CONFIG_ISP1362_USB
403 /* Initialize OR5 / BR5 */
404 memctl->memc_or5 = CFG_OR5_ISP1362;
405 memctl->memc_br5 = CFG_BR5_ISP1362;
406 #endif /* CONFIG_ISP1362_USB */
409 return (size_b0 + size_b1);
412 /* ------------------------------------------------------------------------- */
415 * Check memory range for valid RAM. A simple memory test determines
416 * the actually available RAM size between addresses `base' and
417 * `base + maxsize'. Some (not all) hardware errors are detected:
418 * - short between address lines
419 * - short between data lines
422 static long int dram_size (long int mamr_value, long int *base, long int maxsize)
424 volatile immap_t *immap = (immap_t *) CFG_IMMR;
425 volatile memctl8xx_t *memctl = &immap->im_memctl;
427 memctl->memc_mamr = mamr_value;
429 return (get_ram_size(base, maxsize));
432 /* ------------------------------------------------------------------------- */
434 #ifdef CONFIG_PS2MULT
436 #ifdef CONFIG_BMS2003
437 #define BASE_BAUD ( 1843200 / 16 )
438 struct serial_state rs_table[] = {
439 { BASE_BAUD, 4, (void*)0xec140000 },
440 { BASE_BAUD, 2, (void*)0xec150000 },
441 { BASE_BAUD, 6, (void*)0xec160000 },
442 { BASE_BAUD, 10, (void*)0xec170000 },
445 #ifdef CONFIG_BOARD_EARLY_INIT_R
446 int board_early_init_r (void)
448 ps2mult_early_init();
452 #endif /* CONFIG_BMS2003 */
454 #endif /* CONFIG_PS2MULT */
456 /* ------------------------------------------------------------------------- */
457 #ifdef CONFIG_BMS2003
459 int misc_init_r (void)
461 #ifdef CONFIG_IDE_LED
462 volatile immap_t *immap = (immap_t *) CFG_IMMR;
464 /* Configure PA15 as output port */
465 immap->im_ioport.iop_padir |= 0x0001;
466 immap->im_ioport.iop_paodr |= 0x0001;
467 immap->im_ioport.iop_papar &= ~0x0001;
468 immap->im_ioport.iop_padat &= ~0x0001; /* turn it off */
473 #ifdef CONFIG_IDE_LED
474 void ide_led (uchar led, uchar status)
476 volatile immap_t *immap = (immap_t *) CFG_IMMR;
478 /* We have one led for both pcmcia slots */
479 if (status) { /* led on */
480 immap->im_ioport.iop_padat |= 0x0001;
482 immap->im_ioport.iop_padat &= ~0x0001;
487 #endif /* CONFIG_BMS2003 */
488 /* ------------------------------------------------------------------------- */