3 * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
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,
28 * How do I program the SDRAM Timing Register (SDRAM0_TR) for a specific SDRAM or DIMM?
30 * As an example, consider a case where PC133 memory with CAS Latency equal to 2 is being
31 * used with a 200MHz 405GP. For a typical 128Mb, PC133 SDRAM, the relevant minimum
32 * parameters from the datasheet are:
33 * Tclk = 7.5ns (CL = 2)
39 * If we are operating the 405GP with the MemClk output frequency set to 100 MHZ, the clock
40 * period is 10ns and the parameters needed for the Timing Register are:
41 * CASL = CL = 2 clock cycles
42 * PTA = Trp = 15ns / 10ns = 2 clock cycles
43 * CTP = Trc - Trcd - Trp = (60ns - 15ns - 15ns) / 10ns= 3 clock cycles
44 * LDF = 2 clock cycles (but can be extended to meet board-level timing)
45 * RFTA = Trfc = 66ns / 10ns= 7 clock cycles
46 * RCD = Trcd = 15ns / 10ns= 2 clock cycles
48 * The actual bit settings in the register would be:
57 * If Trfc is not specified in the datasheet for PC100 or PC133 memory, set RFTA = Trc
58 * instead. Figure 24 in the PC SDRAM Specification Rev. 1.7 shows refresh to active delay
59 * defined as Trc rather than Trfc.
60 * When using DIMM modules, most but not all of the required timing parameters can be read
61 * from the Serial Presence Detect (SPD) EEPROM on the module. Specifically, Trc and Trfc
62 * are not available from the EEPROM
67 #include <asm/processor.h>
68 #include <405gp_i2c.h>
70 #include "../common/common_util.h"
74 DECLARE_GLOBAL_DATA_PTR;
76 extern block_dev_desc_t * scsi_get_dev(int dev);
77 extern block_dev_desc_t * ide_get_dev(int dev);
80 #define ENABLE_ECC /* for ecc boards */
84 /* stdlib.h causes some compatibility problems; should fixe these! -- wd */
85 #ifndef __ldiv_t_defined
87 long int quot; /* Quotient */
88 long int rem; /* Remainder */
90 extern ldiv_t ldiv (long int __numer, long int __denom);
91 # define __ldiv_t_defined 1
95 #define PLD_PART_REG PER_PLD_ADDR + 0
96 #define PLD_VERS_REG PER_PLD_ADDR + 1
97 #define PLD_BOARD_CFG_REG PER_PLD_ADDR + 2
98 #define PLD_IRQ_REG PER_PLD_ADDR + 3
99 #define PLD_COM_MODE_REG PER_PLD_ADDR + 4
100 #define PLD_EXT_CONF_REG PER_PLD_ADDR + 5
102 #define MEGA_BYTE (1024*1024)
105 unsigned char boardtype; /* Board revision and Population Options */
106 unsigned char cal; /* cas Latency (will be programmend as cal-1) */
107 unsigned char trp; /* datain27 in clocks */
108 unsigned char trcd; /* datain29 in clocks */
109 unsigned char tras; /* datain30 in clocks */
110 unsigned char tctp; /* tras - trcd in clocks */
111 unsigned char am; /* Address Mod (will be programmed as am-1) */
112 unsigned char sz; /* log binary => Size = (4MByte<<sz) 5 = 128, 4 = 64, 3 = 32, 2 = 16, 1=8 */
113 unsigned char ecc; /* if true, ecc is enabled */
115 #if defined(CONFIG_MIP405T)
116 const sdram_t sdram_table[] = {
117 { 0x0F, /* MIP405T Rev A, 64MByte -1 Board */
118 3, /* Case Latenty = 3 */
119 3, /* trp 20ns / 7.5 ns datain[27] */
120 3, /* trcd 20ns /7.5 ns (datain[29]) */
121 6, /* tras 44ns /7.5 ns (datain[30]) */
122 4, /* tcpt 44 - 20ns = 24ns */
123 2, /* Address Mode = 2 (12x9x4) */
124 3, /* size value (32MByte) */
125 0}, /* ECC disabled */
126 { 0xff, /* terminator */
136 const sdram_t sdram_table[] = {
137 { 0x0f, /* Rev A, 128MByte -1 Board */
138 3, /* Case Latenty = 3 */
139 3, /* trp 20ns / 7.5 ns datain[27] */
140 3, /* trcd 20ns /7.5 ns (datain[29]) */
141 6, /* tras 44ns /7.5 ns (datain[30]) */
142 4, /* tcpt 44 - 20ns = 24ns */
143 3, /* Address Mode = 3 */
145 1}, /* ECC enabled */
146 { 0x07, /* Rev A, 64MByte -2 Board */
147 3, /* Case Latenty = 3 */
148 3, /* trp 20ns / 7.5 ns datain[27] */
149 3, /* trcd 20ns /7.5 ns (datain[29]) */
150 6, /* tras 44ns /7.5 ns (datain[30]) */
151 4, /* tcpt 44 - 20ns = 24ns */
152 2, /* Address Mode = 2 */
154 1}, /* ECC enabled */
155 { 0x03, /* Rev A, 128MByte -4 Board */
156 3, /* Case Latenty = 3 */
157 3, /* trp 20ns / 7.5 ns datain[27] */
158 3, /* trcd 20ns /7.5 ns (datain[29]) */
159 6, /* tras 44ns /7.5 ns (datain[30]) */
160 4, /* tcpt 44 - 20ns = 24ns */
161 3, /* Address Mode = 3 */
163 1}, /* ECC enabled */
164 { 0x1f, /* Rev B, 128MByte -3 Board */
165 3, /* Case Latenty = 3 */
166 3, /* trp 20ns / 7.5 ns datain[27] */
167 3, /* trcd 20ns /7.5 ns (datain[29]) */
168 6, /* tras 44ns /7.5 ns (datain[30]) */
169 4, /* tcpt 44 - 20ns = 24ns */
170 3, /* Address Mode = 3 */
172 1}, /* ECC enabled */
173 { 0x2f, /* Rev C, 128MByte -3 Board */
174 3, /* Case Latenty = 3 */
175 3, /* trp 20ns / 7.5 ns datain[27] */
176 3, /* trcd 20ns /7.5 ns (datain[29]) */
177 6, /* tras 44ns /7.5 ns (datain[30]) */
178 4, /* tcpt 44 - 20ns = 24ns */
179 3, /* Address Mode = 3 */
181 1}, /* ECC enabled */
182 { 0xff, /* terminator */
191 #endif /*CONFIG_MIP405T */
192 void SDRAM_err (const char *s)
195 (void) get_clocks ();
201 serial_puts ("\n enable SDRAM_DEBUG for more info\n");
206 unsigned char get_board_revcfg (void)
208 out8 (PER_BOARD_ADDR, 0);
209 return (in8 (PER_BOARD_ADDR));
215 void write_hex (unsigned char i)
222 serial_putc (cc + 55);
224 serial_putc (cc + 48);
227 serial_putc (cc + 55);
229 serial_putc (cc + 48);
232 void write_4hex (unsigned long val)
234 write_hex ((unsigned char) (val >> 24));
235 write_hex ((unsigned char) (val >> 16));
236 write_hex ((unsigned char) (val >> 8));
237 write_hex ((unsigned char) val);
243 int init_sdram (void)
245 unsigned long tmp, baseaddr;
247 unsigned char trp_clocks,
252 unsigned char cal_val;
254 unsigned long sdram_tim, sdram_bank;
256 /*i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);*/
257 (void) get_clocks ();
261 mtdcr (ebccfga, pb7ap);
262 mtdcr (ebccfgd, PLD_AP);
263 mtdcr (ebccfga, pb7cr);
264 mtdcr (ebccfgd, PLD_CR);
265 /* THIS IS OBSOLETE */
266 /* set up the board rev reg*/
267 mtdcr (ebccfga, pb5ap);
268 mtdcr (ebccfgd, BOARD_AP);
269 mtdcr (ebccfga, pb5cr);
270 mtdcr (ebccfgd, BOARD_CR);
272 /* get all informations from PLD */
273 serial_puts ("\nPLD Part 0x");
274 bc = in8 (PLD_PART_REG);
276 serial_puts ("\nPLD Vers 0x");
277 bc = in8 (PLD_VERS_REG);
279 serial_puts ("\nBoard Rev 0x");
280 bc = in8 (PLD_BOARD_CFG_REG);
285 bc = in8 (PLD_PART_REG);
286 #if defined(CONFIG_MIP405T)
288 SDRAM_err ("U-Boot configured for a MIP405T not for a MIP405!!!\n");
290 if((bc & 0x80)==0x80)
291 SDRAM_err ("U-Boot configured for a MIP405 not for a MIP405T!!!\n");
293 /* set-up the chipselect machine */
294 mtdcr (ebccfga, pb0cr); /* get cs0 config reg */
295 tmp = mfdcr (ebccfgd);
296 if ((tmp & 0x00002000) == 0) {
297 /* MPS Boot, set up the flash */
298 mtdcr (ebccfga, pb1ap);
299 mtdcr (ebccfgd, FLASH_AP);
300 mtdcr (ebccfga, pb1cr);
301 mtdcr (ebccfgd, FLASH_CR);
303 /* Flash boot, set up the MPS */
304 mtdcr (ebccfga, pb1ap);
305 mtdcr (ebccfgd, MPS_AP);
306 mtdcr (ebccfga, pb1cr);
307 mtdcr (ebccfgd, MPS_CR);
309 /* set up UART0 (CS2) and UART1 (CS3) */
310 mtdcr (ebccfga, pb2ap);
311 mtdcr (ebccfgd, UART0_AP);
312 mtdcr (ebccfga, pb2cr);
313 mtdcr (ebccfgd, UART0_CR);
314 mtdcr (ebccfga, pb3ap);
315 mtdcr (ebccfgd, UART1_AP);
316 mtdcr (ebccfga, pb3cr);
317 mtdcr (ebccfgd, UART1_CR);
318 bc = in8 (PLD_BOARD_CFG_REG);
320 serial_puts ("\nstart SDRAM Setup\n");
321 serial_puts ("\nBoard Rev: ");
326 baseaddr = CFG_SDRAM_BASE;
327 while (sdram_table[i].sz != 0xff) {
328 if (sdram_table[i].boardtype == bc)
332 if (sdram_table[i].boardtype != bc)
333 SDRAM_err ("No SDRAM table found for this board!!!\n");
335 serial_puts (" found table ");
339 /* since the ECC initialisation needs some time,
340 * we show that we're alive
342 if (sdram_table[i].ecc)
343 serial_puts ("\nInitializing SDRAM, Please stand by");
344 cal_val = sdram_table[i].cal - 1; /* Cas Latency */
345 trp_clocks = sdram_table[i].trp; /* 20ns / 7.5 ns datain[27] */
346 trcd_clocks = sdram_table[i].trcd; /* 20ns /7.5 ns (datain[29]) */
347 tras_clocks = sdram_table[i].tras; /* 44ns /7.5 ns (datain[30]) */
348 /* ctp = ((trp + tras) - trp - trcd) => tras - trcd */
349 tctp_clocks = sdram_table[i].tctp; /* 44 - 20ns = 24ns */
350 /* trc_clocks is sum of trp_clocks + tras_clocks */
351 trc_clocks = trp_clocks + tras_clocks;
352 /* get SDRAM timing register */
353 mtdcr (memcfga, mem_sdtr1);
354 sdram_tim = mfdcr (memcfgd) & ~0x018FC01F;
355 /* insert CASL value */
356 sdram_tim |= ((unsigned long) (cal_val)) << 23;
357 /* insert PTA value */
358 sdram_tim |= ((unsigned long) (trp_clocks - 1)) << 18;
359 /* insert CTP value */
361 ((unsigned long) (trc_clocks - trp_clocks -
363 /* insert LDF (always 01) */
364 sdram_tim |= ((unsigned long) 0x01) << 14;
365 /* insert RFTA value */
366 sdram_tim |= ((unsigned long) (trc_clocks - 4)) << 2;
367 /* insert RCD value */
368 sdram_tim |= ((unsigned long) (trcd_clocks - 1)) << 0;
370 tmp = ((unsigned long) (sdram_table[i].am - 1) << 13); /* AM = 3 */
371 /* insert SZ value; */
372 tmp |= ((unsigned long) sdram_table[i].sz << 17);
373 /* get SDRAM bank 0 register */
374 mtdcr (memcfga, mem_mb0cf);
375 sdram_bank = mfdcr (memcfgd) & ~0xFFCEE001;
376 sdram_bank |= (baseaddr | tmp | 0x01);
379 serial_puts ("sdtr: ");
380 write_4hex (sdram_tim);
384 /* write SDRAM timing register */
385 mtdcr (memcfga, mem_sdtr1);
386 mtdcr (memcfgd, sdram_tim);
389 serial_puts ("mb0cf: ");
390 write_4hex (sdram_bank);
394 /* write SDRAM bank 0 register */
395 mtdcr (memcfga, mem_mb0cf);
396 mtdcr (memcfgd, sdram_bank);
398 if (get_bus_freq (tmp) > 110000000) { /* > 110MHz */
399 /* get SDRAM refresh interval register */
400 mtdcr (memcfga, mem_rtr);
401 tmp = mfdcr (memcfgd) & ~0x3FF80000;
404 /* get SDRAM refresh interval register */
405 mtdcr (memcfga, mem_rtr);
406 tmp = mfdcr (memcfgd) & ~0x3FF80000;
409 /* write SDRAM refresh interval register */
410 mtdcr (memcfga, mem_rtr);
411 mtdcr (memcfgd, tmp);
412 /* enable ECC if used */
413 #if defined(ENABLE_ECC) && !defined(CONFIG_BOOT_PCI)
414 if (sdram_table[i].ecc) {
415 /* disable checking for all banks */
418 serial_puts ("disable ECC.. ");
420 mtdcr (memcfga, mem_ecccf);
421 tmp = mfdcr (memcfgd);
422 tmp &= 0xff0fffff; /* disable all banks */
423 mtdcr (memcfga, mem_ecccf);
424 /* set up SDRAM Controller with ECC enabled */
426 serial_puts ("setup SDRAM Controller.. ");
428 mtdcr (memcfgd, tmp);
429 mtdcr (memcfga, mem_mcopt1);
430 tmp = (mfdcr (memcfgd) & ~0xFFE00000) | 0x90800000;
431 mtdcr (memcfga, mem_mcopt1);
432 mtdcr (memcfgd, tmp);
435 serial_puts ("fill the memory..\n");
438 /* now, fill all the memory */
439 tmp = ((4 * MEGA_BYTE) << sdram_table[i].sz);
440 p = (unsigned long) 0;
441 while ((unsigned long) p < tmp) {
443 if (!((unsigned long) p % 0x00800000)) /* every 8MByte */
449 serial_puts ("enable ECC\n");
452 mtdcr (memcfga, mem_ecccf);
453 tmp = mfdcr (memcfgd);
454 tmp |= 0x00800000; /* enable bank 0 */
455 mtdcr (memcfgd, tmp);
460 /* enable SDRAM controller with no ECC, 32-bit SDRAM width, 16 byte burst */
461 mtdcr (memcfga, mem_mcopt1);
462 tmp = (mfdcr (memcfgd) & ~0xFFE00000) | 0x80C00000;
463 mtdcr (memcfga, mem_mcopt1);
464 mtdcr (memcfgd, tmp);
471 int board_early_init_f (void)
475 /*-------------------------------------------------------------------------+
476 | Interrupt controller setup for the PIP405 board.
477 | Note: IRQ 0-15 405GP internally generated; active high; level sensitive
478 | IRQ 16 405GP internally generated; active low; level sensitive
480 | IRQ 25 (EXT IRQ 0) SouthBridge; active low; level sensitive
481 | IRQ 26 (EXT IRQ 1) NMI: active low; level sensitive
482 | IRQ 27 (EXT IRQ 2) SMI: active Low; level sensitive
483 | IRQ 28 (EXT IRQ 3) PCI SLOT 3; active low; level sensitive
484 | IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
485 | IRQ 30 (EXT IRQ 5) PCI SLOT 1; active low; level sensitive
486 | IRQ 31 (EXT IRQ 6) PCI SLOT 0; active low; level sensitive
487 | Note for MIP405 board:
488 | An interrupt taken for the SouthBridge (IRQ 25) indicates that
489 | the Interrupt Controller in the South Bridge has caused the
490 | interrupt. The IC must be read to determine which device
491 | caused the interrupt.
493 +-------------------------------------------------------------------------*/
494 mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
495 mtdcr (uicer, 0x00000000); /* disable all ints */
496 mtdcr (uiccr, 0x00000000); /* set all to be non-critical (for now) */
497 mtdcr (uicpr, 0xFFFFFF80); /* set int polarities */
498 mtdcr (uictr, 0x10000000); /* set int trigger levels */
499 mtdcr (uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
500 mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
506 * Get some PLD Registers
509 unsigned short get_pld_parvers (void)
511 unsigned short result;
514 rc = in8 (PLD_PART_REG);
515 result = (unsigned short) rc << 8;
516 rc = in8 (PLD_VERS_REG);
522 void user_led0 (unsigned char on)
525 out8 (PLD_COM_MODE_REG, (in8 (PLD_COM_MODE_REG) | 0x4));
527 out8 (PLD_COM_MODE_REG, (in8 (PLD_COM_MODE_REG) & 0xfb));
531 void ide_set_reset (int idereset)
533 /* if reset = 1 IDE reset will be asserted */
535 out8 (PLD_COM_MODE_REG, (in8 (PLD_COM_MODE_REG) | 0x1));
538 out8 (PLD_COM_MODE_REG, (in8 (PLD_COM_MODE_REG) & 0xfe));
543 /* ------------------------------------------------------------------------- */
545 void get_pcbrev_var(unsigned char *pcbrev, unsigned char *var)
547 #if !defined(CONFIG_MIP405T)
548 unsigned char bc,rc,tmp;
551 bc = in8 (PLD_BOARD_CFG_REG);
555 for (i = 0; i < 4; i++) {
561 if(( (((bc>>4) & 0xf)==0x2) /* Rev C PCB or */
562 || (((bc>>4) & 0xf)==0x1)) /* Rev B PCB with */
563 && (rc==0x1)) /* Population Option 1 is a -3 */
565 *pcbrev=(bc >> 4) & 0xf;
569 bc = in8 (PLD_BOARD_CFG_REG);
570 *pcbrev=(bc >> 4) & 0xf;
576 * Check Board Identity:
578 /* serial String: "MIP405_1000" OR "MIP405T_1000" */
579 #if !defined(CONFIG_MIP405T)
580 #define BOARD_NAME "MIP405"
582 #define BOARD_NAME "MIP405T"
585 int checkboard (void)
588 unsigned char bc, var;
590 backup_t *b = (backup_t *) s;
593 get_pcbrev_var(&bc,&var);
594 i = getenv_r ("serial#", (char *)s, 32);
595 if ((i == 0) || strncmp ((char *)s, BOARD_NAME,sizeof(BOARD_NAME))) {
596 get_backup_values (b);
597 if (strncmp (b->signature, "MPL\0", 4) != 0) {
598 puts ("### No HW ID - assuming " BOARD_NAME);
599 printf ("-%d Rev %c", var, 'A' + bc);
601 b->serial_name[sizeof(BOARD_NAME)-1] = 0;
602 printf ("%s-%d Rev %c SN: %s", b->serial_name, var,
603 'A' + bc, &b->serial_name[sizeof(BOARD_NAME)]);
606 s[sizeof(BOARD_NAME)-1] = 0;
607 printf ("%s-%d Rev %c SN: %s", s, var,'A' + bc,
608 &s[sizeof(BOARD_NAME)]);
610 bc = in8 (PLD_EXT_CONF_REG);
611 printf (" Boot Config: 0x%x\n", bc);
616 /* ------------------------------------------------------------------------- */
617 /* ------------------------------------------------------------------------- */
619 initdram(int board_type) reads EEPROM via I2c. EEPROM contains all of
620 the necessary info for SDRAM controller configuration
622 /* ------------------------------------------------------------------------- */
623 /* ------------------------------------------------------------------------- */
624 static int test_dram (unsigned long ramsize);
626 long int initdram (int board_type)
629 unsigned long bank_reg[4], tmp, bank_size;
631 unsigned long TotalSize;
634 /* since the DRAM controller is allready set up, calculate the size with the
636 mtdcr (memcfga, mem_mb0cf);
637 bank_reg[0] = mfdcr (memcfgd);
638 mtdcr (memcfga, mem_mb1cf);
639 bank_reg[1] = mfdcr (memcfgd);
640 mtdcr (memcfga, mem_mb2cf);
641 bank_reg[2] = mfdcr (memcfgd);
642 mtdcr (memcfga, mem_mb3cf);
643 bank_reg[3] = mfdcr (memcfgd);
645 for (i = 0; i < 4; i++) {
646 if ((bank_reg[i] & 0x1) == 0x1) {
647 tmp = (bank_reg[i] >> 17) & 0x7;
648 bank_size = 4 << tmp;
649 TotalSize += bank_size;
653 mtdcr (memcfga, mem_ecccf);
654 tmp = mfdcr (memcfgd);
660 test_dram (TotalSize * MEGA_BYTE);
661 return (TotalSize * MEGA_BYTE);
664 /* ------------------------------------------------------------------------- */
667 static int test_dram (unsigned long ramsize)
670 mem_test (0L, ramsize, 1);
672 /* not yet implemented */
676 /* used to check if the time in RTC is valid */
677 static unsigned long start;
678 static struct rtc_time tm;
679 extern flash_info_t flash_info[]; /* info for FLASH chips */
681 int misc_init_r (void)
683 /* adjust flash start and size as well as the offset */
684 gd->bd->bi_flashstart=0-flash_info[0].size;
685 gd->bd->bi_flashsize=flash_info[0].size-CFG_MONITOR_LEN;
686 gd->bd->bi_flashoffset=0;
688 /* check, if RTC is running */
691 /* if MIP405 has booted from PCI, reset CCR0[24] as described in errata PCI_18 */
692 if (mfdcr(strap) & PSR_ROM_LOC)
693 mtspr(ccr0, (mfspr(ccr0) & ~0x80));
699 void print_mip405_rev (void)
701 unsigned char part, vers, pcbrev, var;
703 get_pcbrev_var(&pcbrev,&var);
704 part = in8 (PLD_PART_REG);
705 vers = in8 (PLD_VERS_REG);
706 printf ("Rev: " BOARD_NAME "-%d Rev %c PLD %d Vers %d\n",
707 var, pcbrev + 'A', part & 0x7F, vers);
713 * Returns 1 if keys pressed to start the power-on long-running tests
714 * Called from board_init_f().
716 int post_hotkeys_pressed(void)
718 return 0; /* No hotkeys supported */
722 extern void mem_test_reloc(void);
723 extern int mk_date (char *, struct rtc_time *);
725 int last_stage_init (void)
728 struct rtc_time newtm;
731 /* write correct LED configuration */
732 if (miiphy_write("ppc_4xx_eth0", 0x1, 0x14, 0x2402) != 0) {
733 printf ("Error writing to the PHY\n");
735 /* since LED/CFG2 is not connected on the -2,
736 * write to correct capability information */
737 if (miiphy_write("ppc_4xx_eth0", 0x1, 0x4, 0x01E1) != 0) {
738 printf ("Error writing to the PHY\n");
743 /* check if RTC time is valid */
744 stop=get_timer(start);
745 while(stop<1200) { /* we wait 1.2 sec to check if the RTC is running */
747 stop=get_timer(start);
750 if(tm.tm_sec==newtm.tm_sec) {
751 s=getenv("defaultdate");
753 mk_date ("010112001970", &newtm);
755 if(mk_date (s, &newtm)!=0) {
756 printf("RTC: Bad date format in defaultdate\n");
765 /***************************************************************************
766 * some helping routines
769 int overwrite_console (void)
771 return ((in8 (PLD_EXT_CONF_REG) & 0x1)==0); /* return TRUE if console should be overwritten */
775 /************************************************************************
777 ************************************************************************/
778 void print_mip405_info (void)
780 unsigned char part, vers, cfg, irq_reg, com_mode, ext;
782 part = in8 (PLD_PART_REG);
783 vers = in8 (PLD_VERS_REG);
784 cfg = in8 (PLD_BOARD_CFG_REG);
785 irq_reg = in8 (PLD_IRQ_REG);
786 com_mode = in8 (PLD_COM_MODE_REG);
787 ext = in8 (PLD_EXT_CONF_REG);
789 printf ("PLD Part %d version %d\n", part & 0x7F, vers);
790 printf ("Board Revision %c\n", ((cfg >> 4) & 0xf) + 'A');
791 printf ("Population Options %d %d %d %d\n", (cfg) & 0x1,
792 (cfg >> 1) & 0x1, (cfg >> 2) & 0x1, (cfg >> 3) & 0x1);
793 printf ("User LED %s\n", (com_mode & 0x4) ? "on" : "off");
794 printf ("UART Clocks %d\n", (com_mode >> 4) & 0x3);
795 #if !defined(CONFIG_MIP405T)
796 printf ("User Config Switch %d %d %d %d %d %d %d %d\n",
797 (ext) & 0x1, (ext >> 1) & 0x1, (ext >> 2) & 0x1,
798 (ext >> 3) & 0x1, (ext >> 4) & 0x1, (ext >> 5) & 0x1,
799 (ext >> 6) & 0x1, (ext >> 7) & 0x1);
800 printf ("SER1 uses handshakes %s\n",
801 (ext & 0x80) ? "DTR/DSR" : "RTS/CTS");
803 printf ("User Config Switch %d %d %d %d %d %d %d %d\n",
804 (ext) & 0x1, (ext >> 1) & 0x1, (ext >> 2) & 0x1,
805 (ext >> 3) & 0x1, (ext >> 4) & 0x1, (ext >> 5) & 0x1,
806 (ext >> 6) & 0x1,(ext >> 7) & 0x1);
808 printf ("IDE Reset %s\n", (ext & 0x01) ? "asserted" : "not asserted");
810 printf (" PIIX INTR: %s\n", (irq_reg & 0x80) ? "inactive" : "active");
811 #if !defined(CONFIG_MIP405T)
812 printf (" UART0 IRQ: %s\n", (irq_reg & 0x40) ? "inactive" : "active");
813 printf (" UART1 IRQ: %s\n", (irq_reg & 0x20) ? "inactive" : "active");
815 printf (" PIIX SMI: %s\n", (irq_reg & 0x10) ? "inactive" : "active");
816 printf (" PIIX INIT: %s\n", (irq_reg & 0x8) ? "inactive" : "active");
817 printf (" PIIX NMI: %s\n", (irq_reg & 0x4) ? "inactive" : "active");