2 * (C) Copyright 2000-2008
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,
31 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
35 extern flash_info_t flash_info[]; /* FLASH chips info */
37 DECLARE_GLOBAL_DATA_PTR;
39 static long int dram_size (long int, long int *, long int);
41 #define _NOT_USED_ 0xFFFFFFFF
43 /* UPM initialization table for SDRAM: 40, 50, 66 MHz CLKOUT @ CAS latency 2, tWR=2 */
44 const uint sdram_table[] =
47 * Single Read. (Offset 0 in UPMA RAM)
49 0x1F0DFC04, 0xEEAFBC04, 0x11AF7C04, 0xEFBAFC00,
50 0x1FF5FC47, /* last */
52 * SDRAM Initialization (offset 5 in UPMA RAM)
54 * This is no UPM entry point. The following definition uses
55 * the remaining space to establish an initialization
56 * sequence, which is executed by a RUN command.
59 0x1FF5FC34, 0xEFEABC34, 0x1FB57C35, /* last */
61 * Burst Read. (Offset 8 in UPMA RAM)
63 0x1F0DFC04, 0xEEAFBC04, 0x10AF7C04, 0xF0AFFC00,
64 0xF0AFFC00, 0xF1AFFC00, 0xEFBAFC00, 0x1FF5FC47, /* last */
65 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
66 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
68 * Single Write. (Offset 18 in UPMA RAM)
70 0x1F0DFC04, 0xEEABBC00, 0x11B77C04, 0xEFFAFC44,
71 0x1FF5FC47, /* last */
72 _NOT_USED_, _NOT_USED_, _NOT_USED_,
74 * Burst Write. (Offset 20 in UPMA RAM)
76 0x1F0DFC04, 0xEEABBC00, 0x10A77C00, 0xF0AFFC00,
77 0xF0AFFC00, 0xF0AFFC04, 0xE1BAFC44, 0x1FF5FC47, /* last */
78 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
79 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
81 * Refresh (Offset 30 in UPMA RAM)
83 0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
84 0xFFFFFC84, 0xFFFFFC07, /* last */
85 _NOT_USED_, _NOT_USED_,
86 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
88 * Exception. (Offset 3c in UPMA RAM)
90 0xFFFFFC07, /* last */
91 _NOT_USED_, _NOT_USED_, _NOT_USED_,
94 /* ------------------------------------------------------------------------- */
98 * Check Board Identity:
100 * Test TQ ID string (TQM8xx...)
101 * If present, check for "L" type (no second DRAM bank),
102 * otherwise "L" type is assumed as default.
104 * Set board_type to 'L' for "L" type, 'M' for "M" type, 0 else.
107 int checkboard (void)
111 int l = getenv_f("serial#", buf, sizeof(buf));
115 if (l < 0 || strncmp(buf, "TQM8", 4)) {
116 puts ("### No HW ID - assuming TQM8xxL\n");
120 if ((buf[6] == 'L')) { /* a TQM8xxL type */
121 gd->board_type = 'L';
124 if ((buf[6] == 'M')) { /* a TQM8xxM type */
125 gd->board_type = 'M';
128 if ((buf[6] == 'D')) { /* a TQM885D type */
129 gd->board_type = 'D';
132 for (i = 0; i < l; ++i) {
137 #ifdef CONFIG_VIRTLAB2
138 puts (" (Virtlab2)");
145 /* ------------------------------------------------------------------------- */
147 phys_size_t initdram (int board_type)
149 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
150 volatile memctl8xx_t *memctl = &immap->im_memctl;
151 long int size8, size9, size10;
152 long int size_b0 = 0;
153 long int size_b1 = 0;
155 upmconfig (UPMA, (uint *) sdram_table,
156 sizeof (sdram_table) / sizeof (uint));
159 * Preliminary prescaler for refresh (depends on number of
160 * banks): This value is selected for four cycles every 62.4 us
161 * with two SDRAM banks or four cycles every 31.2 us with one
162 * bank. It will be adjusted after memory sizing.
164 memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_8K;
167 * The following value is used as an address (i.e. opcode) for
168 * the LOAD MODE REGISTER COMMAND during SDRAM initialisation. If
169 * the port size is 32bit the SDRAM does NOT "see" the lower two
170 * address lines, i.e. mar=0x00000088 -> opcode=0x00000022 for
173 * | | | | +- Burst Length = 4
174 * | | | +----- Burst Type = Sequential
175 * | | +------- CAS Latency = 2
176 * | +----------- Operating Mode = Standard
177 * +-------------- Write Burst Mode = Programmed Burst Length
179 memctl->memc_mar = 0x00000088;
182 * Map controller banks 2 and 3 to the SDRAM banks 2 and 3 at
183 * preliminary addresses - these have to be modified after the
184 * SDRAM size has been determined.
186 memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM;
187 memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM;
189 #ifndef CONFIG_CAN_DRIVER
190 if ((board_type != 'L') &&
191 (board_type != 'M') &&
192 (board_type != 'D') ) { /* only one SDRAM bank on L, M and D modules */
193 memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM;
194 memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM;
196 #endif /* CONFIG_CAN_DRIVER */
198 memctl->memc_mamr = CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
202 /* perform SDRAM initializsation sequence */
204 memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */
206 memctl->memc_mcr = 0x80004230; /* SDRAM bank 0 - execute twice */
209 #ifndef CONFIG_CAN_DRIVER
210 if ((board_type != 'L') &&
211 (board_type != 'M') &&
212 (board_type != 'D') ) { /* only one SDRAM bank on L, M and D modules */
213 memctl->memc_mcr = 0x80006105; /* SDRAM bank 1 */
215 memctl->memc_mcr = 0x80006230; /* SDRAM bank 1 - execute twice */
218 #endif /* CONFIG_CAN_DRIVER */
220 memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
225 * Check Bank 0 Memory Size for re-configuration
229 size8 = dram_size (CONFIG_SYS_MAMR_8COL, SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE);
230 debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size8 >> 20);
237 size9 = dram_size (CONFIG_SYS_MAMR_9COL, SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE);
238 debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size9 >> 20);
242 #if defined(CONFIG_SYS_MAMR_10COL)
246 size10 = dram_size (CONFIG_SYS_MAMR_10COL, SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE);
247 debug ("SDRAM Bank 0 in 10 column mode: %ld MB\n", size10 >> 20);
250 #endif /* CONFIG_SYS_MAMR_10COL */
252 if ((size8 < size10) && (size9 < size10)) {
254 } else if ((size8 < size9) && (size10 < size9)) {
256 memctl->memc_mamr = CONFIG_SYS_MAMR_9COL;
260 memctl->memc_mamr = CONFIG_SYS_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') &&
268 (board_type != 'D') ) { /* only one SDRAM bank on L, M and D modules */
270 * Check Bank 1 Memory Size
271 * use current column settings
272 * [9 column SDRAM may also be used in 8 column mode,
273 * but then only half the real size will be used.]
275 size_b1 = dram_size (memctl->memc_mamr, (long int *)SDRAM_BASE3_PRELIM,
277 debug ("SDRAM Bank 1: %ld MB\n", size_b1 >> 20);
281 #endif /* CONFIG_CAN_DRIVER */
286 * Adjust refresh rate depending on SDRAM type, both banks
287 * For types > 128 MBit leave it at the current (fast) rate
289 if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) {
290 /* reduce to 15.6 us (62.4 us / quad) */
291 memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_4K;
296 * Final mapping: map bigger bank first
298 if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */
300 memctl->memc_or3 = ((-size_b1) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
301 memctl->memc_br3 = (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
305 * Position Bank 0 immediately above Bank 1
307 memctl->memc_or2 = ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
308 memctl->memc_br2 = ((CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
318 memctl->memc_br2 = 0;
320 /* adjust refresh rate depending on SDRAM type, one bank */
321 reg = memctl->memc_mptpr;
322 reg >>= 1; /* reduce to CONFIG_SYS_MPTPR_1BK_8K / _4K */
323 memctl->memc_mptpr = reg;
326 } else { /* SDRAM Bank 0 is bigger - map first */
328 memctl->memc_or2 = ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
330 (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
334 * Position Bank 1 immediately above Bank 0
337 ((-size_b1) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
339 ((CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
344 #ifndef CONFIG_CAN_DRIVER
350 memctl->memc_br3 = 0;
351 #endif /* CONFIG_CAN_DRIVER */
353 /* adjust refresh rate depending on SDRAM type, one bank */
354 reg = memctl->memc_mptpr;
355 reg >>= 1; /* reduce to CONFIG_SYS_MPTPR_1BK_8K / _4K */
356 memctl->memc_mptpr = reg;
362 #ifdef CONFIG_CAN_DRIVER
363 /* UPM initialization for CAN @ CLKOUT <= 66 MHz */
365 /* Initialize OR3 / BR3 */
366 memctl->memc_or3 = CONFIG_SYS_OR3_CAN;
367 memctl->memc_br3 = CONFIG_SYS_BR3_CAN;
369 /* Initialize MBMR */
370 memctl->memc_mbmr = MBMR_GPL_B4DIS; /* GPL_B4 ouput line Disable */
372 /* Initialize UPMB for CAN: single read */
373 memctl->memc_mdr = 0xFFFFCC04;
374 memctl->memc_mcr = 0x0100 | UPMB;
376 memctl->memc_mdr = 0x0FFFD004;
377 memctl->memc_mcr = 0x0101 | UPMB;
379 memctl->memc_mdr = 0x0FFFC000;
380 memctl->memc_mcr = 0x0102 | UPMB;
382 memctl->memc_mdr = 0x3FFFC004;
383 memctl->memc_mcr = 0x0103 | UPMB;
385 memctl->memc_mdr = 0xFFFFDC07;
386 memctl->memc_mcr = 0x0104 | UPMB;
388 /* Initialize UPMB for CAN: single write */
389 memctl->memc_mdr = 0xFFFCCC04;
390 memctl->memc_mcr = 0x0118 | UPMB;
392 memctl->memc_mdr = 0xCFFCDC04;
393 memctl->memc_mcr = 0x0119 | UPMB;
395 memctl->memc_mdr = 0x3FFCC000;
396 memctl->memc_mcr = 0x011A | UPMB;
398 memctl->memc_mdr = 0xFFFCC004;
399 memctl->memc_mcr = 0x011B | UPMB;
401 memctl->memc_mdr = 0xFFFDC405;
402 memctl->memc_mcr = 0x011C | UPMB;
403 #endif /* CONFIG_CAN_DRIVER */
405 #ifdef CONFIG_ISP1362_USB
406 /* Initialize OR5 / BR5 */
407 memctl->memc_or5 = CONFIG_SYS_OR5_ISP1362;
408 memctl->memc_br5 = CONFIG_SYS_BR5_ISP1362;
409 #endif /* CONFIG_ISP1362_USB */
410 return (size_b0 + size_b1);
413 /* ------------------------------------------------------------------------- */
416 * Check memory range for valid RAM. A simple memory test determines
417 * the actually available RAM size between addresses `base' and
418 * `base + maxsize'. Some (not all) hardware errors are detected:
419 * - short between address lines
420 * - short between data lines
423 static long int dram_size (long int mamr_value, long int *base, long int maxsize)
425 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
426 volatile memctl8xx_t *memctl = &immap->im_memctl;
428 memctl->memc_mamr = mamr_value;
430 return (get_ram_size(base, maxsize));
433 /* ------------------------------------------------------------------------- */
435 #ifdef CONFIG_MISC_INIT_R
436 extern void load_sernum_ethaddr(void);
437 int misc_init_r (void)
439 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
440 volatile memctl8xx_t *memctl = &immap->im_memctl;
442 load_sernum_ethaddr();
444 #ifdef CONFIG_SYS_OR_TIMING_FLASH_AT_50MHZ
445 int scy, trlx, flash_or_timing, clk_diff;
447 scy = (CONFIG_SYS_OR_TIMING_FLASH_AT_50MHZ & OR_SCY_MSK) >> 4;
448 if (CONFIG_SYS_OR_TIMING_FLASH_AT_50MHZ & OR_TRLX) {
456 * We assume that each 10MHz of bus clock require 1-clk SCY
459 clk_diff = (gd->bus_clk / 1000000) - 50;
462 * We need proper rounding here. This is what the "+5" and "-5"
466 scy += (clk_diff + 5) / 10;
468 scy += (clk_diff - 5) / 10;
471 * For bus frequencies above 50MHz, we want to use relaxed timing
474 if (gd->bus_clk >= 50000000)
487 flash_or_timing = (scy << 4) | trlx |
488 (CONFIG_SYS_OR_TIMING_FLASH_AT_50MHZ & ~(OR_TRLX | OR_SCY_MSK));
491 flash_or_timing | (-flash_info[0].size & OR_AM_MSK);
494 CONFIG_SYS_OR_TIMING_FLASH | (-flash_info[0].size & OR_AM_MSK);
496 memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V;
498 debug ("## BR0: 0x%08x OR0: 0x%08x\n",
499 memctl->memc_br0, memctl->memc_or0);
501 if (flash_info[1].size) {
502 #ifdef CONFIG_SYS_OR_TIMING_FLASH_AT_50MHZ
503 memctl->memc_or1 = flash_or_timing |
504 (-flash_info[1].size & 0xFFFF8000);
506 memctl->memc_or1 = CONFIG_SYS_OR_TIMING_FLASH |
507 (-flash_info[1].size & 0xFFFF8000);
510 ((CONFIG_SYS_FLASH_BASE +
512 size) & BR_BA_MSK) | BR_MS_GPCM | BR_V;
514 debug ("## BR1: 0x%08x OR1: 0x%08x\n",
515 memctl->memc_br1, memctl->memc_or1);
517 memctl->memc_br1 = 0; /* invalidate bank */
519 debug ("## DISABLE BR1: 0x%08x OR1: 0x%08x\n",
520 memctl->memc_br1, memctl->memc_or1);
523 # ifdef CONFIG_IDE_LED
524 /* Configure PA15 as output port */
525 immap->im_ioport.iop_padir |= 0x0001;
526 immap->im_ioport.iop_paodr |= 0x0001;
527 immap->im_ioport.iop_papar &= ~0x0001;
528 immap->im_ioport.iop_padat &= ~0x0001; /* turn it off */
532 /* wake up ethernet module */
533 immap->im_ioport.iop_pcpar &= ~0x0004; /* GPIO pin */
534 immap->im_ioport.iop_pcdir |= 0x0004; /* output */
535 immap->im_ioport.iop_pcso &= ~0x0004; /* for clarity */
536 immap->im_ioport.iop_pcdat |= 0x0004; /* enable */
537 #endif /* CONFIG_NSCU */
541 #endif /* CONFIG_MISC_INIT_R */
544 # ifdef CONFIG_IDE_LED
545 void ide_led (uchar led, uchar status)
547 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
549 /* We have one led for both pcmcia slots */
550 if (status) { /* led on */
551 immap->im_ioport.iop_padat |= 0x0001;
553 immap->im_ioport.iop_padat &= ~0x0001;
558 #ifdef CONFIG_LCD_INFO
561 #include <timestamp.h>
563 void lcd_show_board_info(void)
567 lcd_printf ("%s (%s - %s)\n", U_BOOT_VERSION, U_BOOT_DATE, U_BOOT_TIME);
568 lcd_printf ("(C) 2008 DENX Software Engineering GmbH\n");
569 lcd_printf (" Wolfgang DENK, wd@denx.de\n");
570 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
571 lcd_printf ("MPC823 CPU at %s MHz\n",
572 strmhz(temp, gd->cpu_clk));
573 lcd_printf (" %ld MB RAM, %ld MB Flash\n",
575 gd->bd->bi_flashsize >> 20 );
577 /* leave one blank line */
578 lcd_printf ("\nMPC823 CPU at %s MHz, %ld MB RAM, %ld MB Flash\n",
579 strmhz(temp, gd->cpu_clk),
581 gd->bd->bi_flashsize >> 20 );
582 #endif /* CONFIG_LCD_INFO_BELOW_LOGO */
584 #endif /* CONFIG_LCD_INFO */
587 * Device Tree Support
589 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
590 int fdt_set_node_and_value (void *blob,
599 nodeoffset = fdt_path_offset (blob, nodename);
600 if (nodeoffset >= 0) {
601 ret = fdt_setprop (blob, nodeoffset, regname, var,
604 printf("ft_blob_update(): "
605 "cannot set %s/%s property; err: %s\n",
606 nodename, regname, fdt_strerror (ret));
609 printf("ft_blob_update(): "
610 "cannot find %s node err:%s\n",
611 nodename, fdt_strerror (nodeoffset));
616 int fdt_del_node_name (void *blob, char *nodename)
621 nodeoffset = fdt_path_offset (blob, nodename);
622 if (nodeoffset >= 0) {
623 ret = fdt_del_node (blob, nodeoffset);
625 printf("%s: cannot delete %s; err: %s\n",
626 __func__, nodename, fdt_strerror (ret));
629 printf("%s: cannot find %s node err:%s\n",
630 __func__, nodename, fdt_strerror (nodeoffset));
635 int fdt_del_prop_name (void *blob, char *nodename, char *propname)
640 nodeoffset = fdt_path_offset (blob, nodename);
641 if (nodeoffset >= 0) {
642 ret = fdt_delprop (blob, nodeoffset, propname);
644 printf("%s: cannot delete %s %s; err: %s\n",
645 __func__, nodename, propname,
649 printf("%s: cannot find %s node err:%s\n",
650 __func__, nodename, fdt_strerror (nodeoffset));
656 * update "brg" property in the blob
658 void ft_blob_update (void *blob, bd_t *bd)
664 brg_data = cpu_to_be32(bd->bi_busfreq);
665 fdt_set_node_and_value(blob,
666 "/soc/cpm", "brg-frequency",
667 &brg_data, sizeof(brg_data));
670 if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
671 fdt_set_node_and_value(blob,
672 "ethernet0", "local-mac-address",
673 enetaddr, sizeof(u8) * 6);
676 if (hwconfig_arg_cmp("fec", "off")) {
677 /* no FEC on this plattform, delete DTS nodes */
678 fdt_del_node_name (blob, "ethernet1");
679 fdt_del_node_name (blob, "mdio1");
680 /* also the aliases entries */
681 fdt_del_prop_name (blob, "/aliases", "ethernet1");
682 fdt_del_prop_name (blob, "/aliases", "mdio1");
684 /* adjust local-mac-address for FEC ethernet */
685 if (eth_getenv_enetaddr("eth1addr", enetaddr)) {
686 fdt_set_node_and_value(blob,
687 "ethernet1", "local-mac-address",
688 enetaddr, sizeof(u8) * 6);
693 void ft_board_setup(void *blob, bd_t *bd)
695 ft_cpu_setup(blob, bd);
696 ft_blob_update(blob, bd);
698 #endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
700 /* ---------------------------------------------------------------------------- */
701 /* TK885D specific initializaion */
702 /* ---------------------------------------------------------------------------- */
705 int last_stage_init(void)
707 const unsigned char phy[] = {CONFIG_FEC1_PHY, CONFIG_FEC2_PHY};
713 /* Without this delay 0xff is read from the UART buffer later in
714 * abortboot() and autoboot is aborted */
716 while (tstc() && i--)
719 /* Check if auto-negotiation is prohibited */
720 s = getenv("phy_auto_nego");
722 if (!s || !strcmp(s, "on"))
723 /* Nothing to do - autonegotiation by default */
726 for (i = 0; i < 2; i++) {
727 ret = miiphy_read("FEC", phy[i], MII_BMCR, ®);
729 printf("Cannot read BMCR on PHY %d\n", phy[i]);
732 /* Auto-negotiation off, hard set full duplex, 100Mbps */
733 ret = miiphy_write("FEC", phy[i],
734 MII_BMCR, (reg | BMCR_SPEED100 |
735 BMCR_FULLDPLX) & ~BMCR_ANENABLE);
737 printf("Cannot write BMCR on PHY %d\n", phy[i]);