1 /***********************************************************************
5 M* Content: LWMON specific U-Boot commands.
7 * (C) Copyright 2001, 2002
8 * DENX Software Engineering
9 * Wolfgang Denk, wd@denx.de
10 * All rights reserved.
14 V* Verification: dzu@denx.de
16 * See file CREDITS for list of people who contributed to this
19 * This program is free software; you can redistribute it and/or
20 * modify it under the terms of the GNU General Public License as
21 * published by the Free Software Foundation; either version 2 of
22 * the License, or (at your option) any later version.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 ***********************************************************************/
35 /*---------------------------- Headerfiles ----------------------------*/
45 #include <linux/types.h>
46 #include <linux/string.h> /* for strdup */
48 DECLARE_GLOBAL_DATA_PTR
;
50 /*------------------------ Local prototypes ---------------------------*/
51 static long int dram_size (long int, long int *, long int);
52 static void kbd_init (void);
53 static int compare_magic (uchar
*kbd_data
, uchar
*str
);
56 /*--------------------- Local macros and constants --------------------*/
57 #define _NOT_USED_ 0xFFFFFFFF
59 #ifdef CONFIG_MODEM_SUPPORT
60 static int key_pressed(void);
61 extern void disable_putc(void);
62 #endif /* CONFIG_MODEM_SUPPORT */
65 * 66 MHz SDRAM access using UPM A
67 const uint sdram_table
[] =
69 #if defined(CONFIG_SYS_MEMORY_75) || defined(CONFIG_SYS_MEMORY_8E)
71 * Single Read. (Offset 0 in UPM RAM)
73 0x1F0DFC04, 0xEEAFBC04, 0x11AF7C04, 0xEFBAFC00,
74 0x1FF5FC47, /* last */
76 * SDRAM Initialization (offset 5 in UPM RAM)
78 * This is no UPM entry point. The following definition uses
79 * the remaining space to establish an initialization
80 * sequence, which is executed by a RUN command.
83 0x1FF5FC34, 0xEFEABC34, 0x1FB57C35, /* last */
85 * Burst Read. (Offset 8 in UPM RAM)
87 0x1F0DFC04, 0xEEAFBC04, 0x10AF7C04, 0xF0AFFC00,
88 0xF0AFFC00, 0xF1AFFC00, 0xEFBAFC00, 0x1FF5FC47, /* last */
89 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
90 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
92 * Single Write. (Offset 18 in UPM RAM)
94 0x1F2DFC04, 0xEEABBC00, 0x01B27C04, 0x1FF5FC47, /* last */
95 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
97 * Burst Write. (Offset 20 in UPM RAM)
99 0x1F0DFC04, 0xEEABBC00, 0x10A77C00, 0xF0AFFC00,
100 0xF0AFFC00, 0xE1BAFC04, 0x01FF5FC47, /* last */
102 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
103 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
105 * Refresh (Offset 30 in UPM RAM)
107 0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
108 0xFFFFFC84, 0xFFFFFC07, /* last */
109 _NOT_USED_
, _NOT_USED_
,
110 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
112 * Exception. (Offset 3c in UPM RAM)
114 0x7FFFFC07, /* last */
115 0xFFFFFCFF, 0xFFFFFCFF, 0xFFFFFCFF,
117 #ifdef CONFIG_SYS_MEMORY_7E
119 * Single Read. (Offset 0 in UPM RAM)
121 0x0E2DBC04, 0x11AF7C04, 0xEFBAFC00, 0x1FF5FC47, /* last */
124 * SDRAM Initialization (offset 5 in UPM RAM)
126 * This is no UPM entry point. The following definition uses
127 * the remaining space to establish an initialization
128 * sequence, which is executed by a RUN command.
131 0x1FF5FC34, 0xEFEABC34, 0x1FB57C35, /* last */
133 * Burst Read. (Offset 8 in UPM RAM)
135 0x0E2DBC04, 0x10AF7C04, 0xF0AFFC00, 0xF0AFFC00,
136 0xF1AFFC00, 0xEFBAFC00, 0x1FF5FC47, /* last */
138 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
139 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
141 * Single Write. (Offset 18 in UPM RAM)
143 0x0E29BC04, 0x01B27C04, 0x1FF5FC47, /* last */
145 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
147 * Burst Write. (Offset 20 in UPM RAM)
149 0x0E29BC04, 0x10A77C00, 0xF0AFFC00, 0xF0AFFC00,
150 0xE1BAFC04, 0x1FF5FC47, /* last */
151 _NOT_USED_
, _NOT_USED_
,
152 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
153 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
155 * Refresh (Offset 30 in UPM RAM)
157 0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
158 0xFFFFFC84, 0xFFFFFC07, /* last */
159 _NOT_USED_
, _NOT_USED_
,
160 _NOT_USED_
, _NOT_USED_
, _NOT_USED_
, _NOT_USED_
,
162 * Exception. (Offset 3c in UPM RAM)
164 0x7FFFFC07, /* last */
165 0xFFFFFCFF, 0xFFFFFCFF, 0xFFFFFCFF,
170 * Check Board Identity:
174 /***********************************************************************
175 F* Function: int checkboard (void) P*A*Z*
179 P* Returnvalue: int - 0 is always returned
181 Z* Intention: This function is the checkboard() method implementation
182 Z* for the lwmon board. Only a standard message is printed.
184 D* Design: wd@denx.de
185 C* Coding: wd@denx.de
186 V* Verification: dzu@denx.de
187 ***********************************************************************/
188 int checkboard (void)
190 puts ("Board: LICCON Konsole LCD3\n");
194 /***********************************************************************
195 F* Function: phys_size_t initdram (int board_type) P*A*Z*
197 P* Parameters: int board_type
198 P* - Usually type of the board - ignored here.
200 P* Returnvalue: long int
201 P* - Size of initialized memory
203 Z* Intention: This function is the initdram() method implementation
204 Z* for the lwmon board.
205 Z* The memory controller is initialized to access the
208 D* Design: wd@denx.de
209 C* Coding: wd@denx.de
210 V* Verification: dzu@denx.de
211 ***********************************************************************/
212 phys_size_t
initdram (int board_type
)
214 volatile immap_t
*immr
= (immap_t
*) CONFIG_SYS_IMMR
;
215 volatile memctl8xx_t
*memctl
= &immr
->im_memctl
;
217 long int size8
, size9
;
221 * Configure UPMA for SDRAM
223 upmconfig (UPMA
, (uint
*)sdram_table
, sizeof(sdram_table
)/sizeof(uint
));
225 memctl
->memc_mptpr
= CONFIG_SYS_MPTPR
;
227 /* burst length=4, burst type=sequential, CAS latency=2 */
228 memctl
->memc_mar
= CONFIG_SYS_MAR
;
231 * Map controller bank 3 to the SDRAM bank at preliminary address.
233 memctl
->memc_or3
= CONFIG_SYS_OR3_PRELIM
;
234 memctl
->memc_br3
= CONFIG_SYS_BR3_PRELIM
;
236 /* initialize memory address register */
237 memctl
->memc_mamr
= CONFIG_SYS_MAMR_8COL
; /* refresh not enabled yet */
239 /* mode initialization (offset 5) */
240 udelay (200); /* 0x80006105 */
241 memctl
->memc_mcr
= MCR_OP_RUN
| MCR_MB_CS3
| MCR_MLCF (1) | MCR_MAD (0x05);
243 /* run 2 refresh sequence with 4-beat refresh burst (offset 0x30) */
244 udelay (1); /* 0x80006130 */
245 memctl
->memc_mcr
= MCR_OP_RUN
| MCR_MB_CS3
| MCR_MLCF (1) | MCR_MAD (0x30);
246 udelay (1); /* 0x80006130 */
247 memctl
->memc_mcr
= MCR_OP_RUN
| MCR_MB_CS3
| MCR_MLCF (1) | MCR_MAD (0x30);
249 udelay (1); /* 0x80006106 */
250 memctl
->memc_mcr
= MCR_OP_RUN
| MCR_MB_CS3
| MCR_MLCF (1) | MCR_MAD (0x06);
252 memctl
->memc_mamr
|= MAMR_PTAE
; /* refresh enabled */
256 /* Need at least 10 DRAM accesses to stabilize */
257 for (i
= 0; i
< 10; ++i
) {
258 volatile unsigned long *addr
=
259 (volatile unsigned long *) SDRAM_BASE3_PRELIM
;
267 * Check Bank 0 Memory Size for re-configuration
271 size8
= dram_size (CONFIG_SYS_MAMR_8COL
, (long *)SDRAM_BASE3_PRELIM
, SDRAM_MAX_SIZE
);
278 size9
= dram_size (CONFIG_SYS_MAMR_9COL
, (long *)SDRAM_BASE3_PRELIM
, SDRAM_MAX_SIZE
);
280 if (size8
< size9
) { /* leave configuration at 9 columns */
282 memctl
->memc_mamr
= CONFIG_SYS_MAMR_9COL
| MAMR_PTAE
;
284 } else { /* back to 8 columns */
286 memctl
->memc_mamr
= CONFIG_SYS_MAMR_8COL
| MAMR_PTAE
;
294 memctl
->memc_or3
= ((-size_b0
) & 0xFFFF0000) |
295 OR_CSNT_SAM
| OR_G5LS
| SDRAM_TIMING
;
296 memctl
->memc_br3
= (CONFIG_SYS_SDRAM_BASE
& BR_BA_MSK
) | BR_MS_UPMA
| BR_V
;
302 /***********************************************************************
303 F* Function: static long int dram_size (long int mamr_value,
305 F* long int maxsize) P*A*Z*
307 P* Parameters: long int mamr_value
308 P* - Value for MAMR for the test
310 P* - Base address for the test
312 P* - Maximum size to test for
314 P* Returnvalue: long int
315 P* - Size of probed memory
317 Z* Intention: Check memory range for valid RAM. A simple memory test
318 Z* determines the actually available RAM size between
319 Z* addresses `base' and `base + maxsize'. Some (not all)
320 Z* hardware errors are detected:
321 Z* - short between address lines
322 Z* - short between data lines
324 D* Design: wd@denx.de
325 C* Coding: wd@denx.de
326 V* Verification: dzu@denx.de
327 ***********************************************************************/
328 static long int dram_size (long int mamr_value
, long int *base
, long int maxsize
)
330 volatile immap_t
*immr
= (immap_t
*) CONFIG_SYS_IMMR
;
331 volatile memctl8xx_t
*memctl
= &immr
->im_memctl
;
333 memctl
->memc_mamr
= mamr_value
;
335 return (get_ram_size(base
, maxsize
));
338 /* ------------------------------------------------------------------------- */
341 # define PB_ENET_TENA ((uint)0x00002000) /* PB 18 */
344 /***********************************************************************
345 F* Function: int board_early_init_f (void) P*A*Z*
350 P* - 0 is always returned.
352 Z* Intention: This function is the board_early_init_f() method implementation
353 Z* for the lwmon board.
354 Z* Disable Ethernet TENA on Port B.
356 D* Design: wd@denx.de
357 C* Coding: wd@denx.de
358 V* Verification: dzu@denx.de
359 ***********************************************************************/
360 int board_early_init_f (void)
362 volatile immap_t
*immr
= (immap_t
*) CONFIG_SYS_IMMR
;
364 /* Disable Ethernet TENA on Port B
365 * Necessary because of pull up in COM3 port.
367 * This is just a preliminary fix, intended to turn off TENA
368 * as soon as possible to avoid noise on the network. Once
369 * I²C is running we will make sure the interface is
370 * correctly initialized.
372 immr
->im_cpm
.cp_pbpar
&= ~PB_ENET_TENA
;
373 immr
->im_cpm
.cp_pbodr
&= ~PB_ENET_TENA
;
374 immr
->im_cpm
.cp_pbdat
&= ~PB_ENET_TENA
; /* set to 0 = disabled */
375 immr
->im_cpm
.cp_pbdir
|= PB_ENET_TENA
;
380 /* ------------------------------------------------------------------------- */
382 /***********************************************************************
383 F* Function: void reset_phy (void) P*A*Z*
389 Z* Intention: Reset the PHY. In the lwmon case we do this by the
390 Z* signaling the PIC I/O expander.
392 D* Design: wd@denx.de
393 C* Coding: wd@denx.de
394 V* Verification: dzu@denx.de
395 ***********************************************************************/
396 void reset_phy (void)
401 printf ("### Switch on Ethernet for SCC2 ###\n");
405 printf ("Old PIC read: reg_61 = 0x%02x\n", c
);
407 c
|= 0x40; /* disable COM3 */
408 c
&= ~0x80; /* enable Ethernet */
412 printf ("New PIC read: reg_61 = 0x%02x\n", c
);
418 /*------------------------- Keyboard controller -----------------------*/
420 #define KEYBD_CMD_READ_KEYS 0x01
421 #define KEYBD_CMD_READ_VERSION 0x02
422 #define KEYBD_CMD_READ_STATUS 0x03
423 #define KEYBD_CMD_RESET_ERRORS 0x10
426 #define KEYBD_STATUS_MASK 0x3F
427 #define KEYBD_STATUS_H_RESET 0x20
428 #define KEYBD_STATUS_BROWNOUT 0x10
429 #define KEYBD_STATUS_WD_RESET 0x08
430 #define KEYBD_STATUS_OVERLOAD 0x04
431 #define KEYBD_STATUS_ILLEGAL_WR 0x02
432 #define KEYBD_STATUS_ILLEGAL_RD 0x01
434 /* Number of bytes returned from Keyboard Controller */
435 #define KEYBD_VERSIONLEN 2 /* version information */
436 #define KEYBD_DATALEN 9 /* normal key scan data */
438 /* maximum number of "magic" key codes that can be assigned */
440 static uchar kbd_addr
= CONFIG_SYS_I2C_KEYBD_ADDR
;
442 static uchar
*key_match (uchar
*);
444 #define KEYBD_SET_DEBUGMODE '#' /* Magic key to enable debug output */
446 /***********************************************************************
447 F* Function: int board_postclk_init (void) P*A*Z*
452 P* - 0 is always returned.
454 Z* Intention: This function is the board_postclk_init() method implementation
455 Z* for the lwmon board.
457 ***********************************************************************/
458 int board_postclk_init (void)
462 #ifdef CONFIG_MODEM_SUPPORT
464 disable_putc(); /* modem doesn't understand banner etc */
472 struct serial_device
* default_serial_console (void)
474 return gd
->do_mdm_init
? &serial_scc_device
: &serial_smc_device
;
477 static void kbd_init (void)
479 uchar kbd_data
[KEYBD_DATALEN
];
480 uchar tmp_data
[KEYBD_DATALEN
];
484 i2c_init (CONFIG_SYS_I2C_SPEED
, CONFIG_SYS_I2C_SLAVE
);
488 /* Forced by PIC. Delays <= 175us loose */
491 /* Read initial keyboard error code */
492 val
= KEYBD_CMD_READ_STATUS
;
493 i2c_write (kbd_addr
, 0, 0, &val
, 1);
494 i2c_read (kbd_addr
, 0, 0, &errcd
, 1);
495 /* clear unused bits */
496 errcd
&= KEYBD_STATUS_MASK
;
497 /* clear "irrelevant" bits. Recommended by Martin Rajek, LWN */
498 errcd
&= ~(KEYBD_STATUS_H_RESET
|KEYBD_STATUS_BROWNOUT
);
500 gd
->kbd_status
|= errcd
<< 8;
502 /* Reset error code and verify */
503 val
= KEYBD_CMD_RESET_ERRORS
;
504 i2c_write (kbd_addr
, 0, 0, &val
, 1);
505 udelay(1000); /* delay NEEDED by keyboard PIC !!! */
507 val
= KEYBD_CMD_READ_STATUS
;
508 i2c_write (kbd_addr
, 0, 0, &val
, 1);
509 i2c_read (kbd_addr
, 0, 0, &val
, 1);
511 val
&= KEYBD_STATUS_MASK
; /* clear unused bits */
512 if (val
) { /* permanent error, report it */
513 gd
->kbd_status
|= val
;
518 * Read current keyboard state.
520 * After the error reset it may take some time before the
521 * keyboard PIC picks up a valid keyboard scan - the total
522 * scan time is approx. 1.6 ms (information by Martin Rajek,
523 * 28 Sep 2002). We read a couple of times for the keyboard
524 * to stabilize, using a big enough delay.
525 * 10 times should be enough. If the data is still changing,
526 * we use what we get :-(
529 memset (tmp_data
, 0xFF, KEYBD_DATALEN
); /* impossible value */
530 for (i
=0; i
<10; ++i
) {
531 val
= KEYBD_CMD_READ_KEYS
;
532 i2c_write (kbd_addr
, 0, 0, &val
, 1);
533 i2c_read (kbd_addr
, 0, 0, kbd_data
, KEYBD_DATALEN
);
535 if (memcmp(kbd_data
, tmp_data
, KEYBD_DATALEN
) == 0) {
536 /* consistent state, done */
539 /* remeber last state, delay, and retry */
540 memcpy (tmp_data
, kbd_data
, KEYBD_DATALEN
);
545 /***********************************************************************
546 F* Function: int misc_init_r (void) P*A*Z*
551 P* - 0 is always returned, even in the case of a keyboard
554 Z* Intention: This function is the misc_init_r() method implementation
555 Z* for the lwmon board.
556 Z* The keyboard controller is initialized and the result
557 Z* of a read copied to the environment variable "keybd".
558 Z* If KEYBD_SET_DEBUGMODE is defined, a check is made for
559 Z* this key, and if found display to the LCD will be enabled.
560 Z* The keys in "keybd" are checked against the magic
561 Z* keycommands defined in the environment.
562 Z* See also key_match().
564 D* Design: wd@denx.de
565 C* Coding: wd@denx.de
566 V* Verification: dzu@denx.de
567 ***********************************************************************/
568 int misc_init_r (void)
570 uchar kbd_data
[KEYBD_DATALEN
];
571 char keybd_env
[2 * KEYBD_DATALEN
+ 1];
572 uchar kbd_init_status
= gd
->kbd_status
>> 8;
573 uchar kbd_status
= gd
->kbd_status
;
578 if (kbd_init_status
) {
579 printf ("KEYBD: Error %02X\n", kbd_init_status
);
581 if (kbd_status
) { /* permanent error, report it */
582 printf ("*** Keyboard error code %02X ***\n", kbd_status
);
583 sprintf (keybd_env
, "%02X", kbd_status
);
584 setenv ("keybd", keybd_env
);
589 * Now we know that we have a working keyboard, so disable
590 * all output to the LCD except when a key press is detected.
593 if ((console_assign (stdout
, "serial") < 0) ||
594 (console_assign (stderr
, "serial") < 0)) {
595 printf ("Can't assign serial port as output device\n");
599 val
= KEYBD_CMD_READ_VERSION
;
600 i2c_write (kbd_addr
, 0, 0, &val
, 1);
601 i2c_read (kbd_addr
, 0, 0, kbd_data
, KEYBD_VERSIONLEN
);
602 printf ("KEYBD: Version %d.%d\n", kbd_data
[0], kbd_data
[1]);
604 /* Read current keyboard state */
605 val
= KEYBD_CMD_READ_KEYS
;
606 i2c_write (kbd_addr
, 0, 0, &val
, 1);
607 i2c_read (kbd_addr
, 0, 0, kbd_data
, KEYBD_DATALEN
);
609 for (i
= 0; i
< KEYBD_DATALEN
; ++i
) {
610 sprintf (keybd_env
+ i
+ i
, "%02X", kbd_data
[i
]);
612 setenv ("keybd", keybd_env
);
614 str
= strdup ((char *)key_match (kbd_data
)); /* decode keys */
615 #ifdef KEYBD_SET_DEBUGMODE
616 if (kbd_data
[0] == KEYBD_SET_DEBUGMODE
) { /* set debug mode */
617 if ((console_assign (stdout
, "lcd") < 0) ||
618 (console_assign (stderr
, "lcd") < 0)) {
619 printf ("Can't assign LCD display as output device\n");
622 #endif /* KEYBD_SET_DEBUGMODE */
623 #ifdef CONFIG_PREBOOT /* automatically configure "preboot" command on key match */
624 setenv ("preboot", str
); /* set or delete definition */
625 #endif /* CONFIG_PREBOOT */
632 #ifdef CONFIG_PREBOOT
634 static uchar kbd_magic_prefix
[] = "key_magic";
635 static uchar kbd_command_prefix
[] = "key_cmd";
637 static int compare_magic (uchar
*kbd_data
, uchar
*str
)
639 uchar compare
[KEYBD_DATALEN
-1];
643 /* Don't include modifier byte */
644 memcpy (compare
, kbd_data
+1, KEYBD_DATALEN
-1);
646 for (; str
!= NULL
; str
= (*nxt
) ? (uchar
*)(nxt
+1) : (uchar
*)nxt
) {
650 c
= (uchar
) simple_strtoul ((char *)str
, (char **) (&nxt
), 16);
652 if (str
== (uchar
*)nxt
) { /* invalid character */
657 * Check if this key matches the input.
658 * Set matches to zero, so they match only once
659 * and we can find duplicates or extra keys
661 for (k
= 0; k
< sizeof(compare
); ++k
) {
662 if (compare
[k
] == '\0') /* only non-zero entries */
664 if (c
== compare
[k
]) { /* found matching key */
669 if (k
== sizeof(compare
)) {
670 return -1; /* unmatched key */
675 * A full match leaves no keys in the `compare' array,
677 for (i
= 0; i
< sizeof(compare
); ++i
) {
687 /***********************************************************************
688 F* Function: static uchar *key_match (uchar *kbd_data) P*A*Z*
690 P* Parameters: uchar *kbd_data
691 P* - The keys to match against our magic definitions
693 P* Returnvalue: uchar *
694 P* - != NULL: Pointer to the corresponding command(s)
695 P* NULL: No magic is about to happen
697 Z* Intention: Check if pressed key(s) match magic sequence,
698 Z* and return the command string associated with that key(s).
700 Z* If no key press was decoded, NULL is returned.
702 Z* Note: the first character of the argument will be
703 Z* overwritten with the "magic charcter code" of the
704 Z* decoded key(s), or '\0'.
706 Z* Note: the string points to static environment data
707 Z* and must be saved before you call any function that
708 Z* modifies the environment.
710 D* Design: wd@denx.de
711 C* Coding: wd@denx.de
712 V* Verification: dzu@denx.de
713 ***********************************************************************/
714 static uchar
*key_match (uchar
*kbd_data
)
716 char magic
[sizeof (kbd_magic_prefix
) + 1];
718 char *kbd_magic_keys
;
721 * The following string defines the characters that can pe appended
722 * to "key_magic" to form the names of environment variables that
723 * hold "magic" key codes, i. e. such key codes that can cause
724 * pre-boot actions. If the string is empty (""), then only
725 * "key_magic" is checked (old behaviour); the string "125" causes
726 * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
728 if ((kbd_magic_keys
= getenv ("magic_keys")) == NULL
)
731 /* loop over all magic keys;
732 * use '\0' suffix in case of empty string
734 for (suffix
=(uchar
*)kbd_magic_keys
; *suffix
|| suffix
==(uchar
*)kbd_magic_keys
; ++suffix
) {
735 sprintf (magic
, "%s%c", kbd_magic_prefix
, *suffix
);
737 printf ("### Check magic \"%s\"\n", magic
);
739 if (compare_magic(kbd_data
, (uchar
*)getenv(magic
)) == 0) {
740 char cmd_name
[sizeof (kbd_command_prefix
) + 1];
743 sprintf (cmd_name
, "%s%c", kbd_command_prefix
, *suffix
);
745 cmd
= getenv (cmd_name
);
747 printf ("### Set PREBOOT to $(%s): \"%s\"\n",
748 cmd_name
, cmd
? cmd
: "<<NULL>>");
751 return ((uchar
*)cmd
);
755 printf ("### Delete PREBOOT\n");
760 #endif /* CONFIG_PREBOOT */
762 #ifdef CONFIG_LCD_INFO
765 #include <timestamp.h>
767 void lcd_show_board_info(void)
771 lcd_printf ("%s (%s - %s)\n", U_BOOT_VERSION
, U_BOOT_DATE
, U_BOOT_TIME
);
772 lcd_printf ("(C) 2008 DENX Software Engineering GmbH\n");
773 lcd_printf (" Wolfgang DENK, wd@denx.de\n");
774 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
775 lcd_printf ("MPC823 CPU at %s MHz\n",
776 strmhz(temp
, gd
->cpu_clk
));
777 lcd_printf (" %ld MB RAM, %ld MB Flash\n",
779 gd
->bd
->bi_flashsize
>> 20 );
781 /* leave one blank line */
782 lcd_printf ("\nMPC823 CPU at %s MHz, %ld MB RAM, %ld MB Flash\n",
783 strmhz(temp
, gd
->cpu_clk
),
785 gd
->bd
->bi_flashsize
>> 20 );
786 #endif /* CONFIG_LCD_INFO_BELOW_LOGO */
788 #endif /* CONFIG_LCD_INFO */
790 /*---------------Board Special Commands: PIC read/write ---------------*/
792 #if defined(CONFIG_CMD_BSP)
793 /***********************************************************************
794 F* Function: int do_pic (cmd_tbl_t *cmdtp, int flag,
795 F* int argc, char *argv[]) P*A*Z*
797 P* Parameters: cmd_tbl_t *cmdtp
798 P* - Pointer to our command table entry
800 P* - If the CMD_FLAG_REPEAT bit is set, then this call is
805 P* - Array of the actual arguments
808 P* - 0 The command was handled successfully
809 P* 1 An error occurred
811 Z* Intention: Implement the "pic [read|write]" commands.
812 Z* The read subcommand takes one argument, the register,
813 Z* whereas the write command takes two, the register and
816 D* Design: wd@denx.de
817 C* Coding: wd@denx.de
818 V* Verification: dzu@denx.de
819 ***********************************************************************/
820 int do_pic (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
825 case 3: /* PIC read reg */
826 if (strcmp (argv
[1], "read") != 0)
829 reg
= simple_strtoul (argv
[2], NULL
, 16);
831 printf ("PIC read: reg %02x: %02x\n\n", reg
, pic_read (reg
));
834 case 4: /* PIC write reg val */
835 if (strcmp (argv
[1], "write") != 0)
838 reg
= simple_strtoul (argv
[2], NULL
, 16);
839 val
= simple_strtoul (argv
[3], NULL
, 16);
841 printf ("PIC write: reg %02x val 0x%02x: %02x => ",
842 reg
, val
, pic_read (reg
));
843 pic_write (reg
, val
);
844 printf ("%02x\n\n", pic_read (reg
));
854 "read and write PIC registers",
855 "read reg - read PIC register `reg'\n"
856 "pic write reg val - write value `val' to PIC register `reg'\n"
859 /***********************************************************************
860 F* Function: int do_kbd (cmd_tbl_t *cmdtp, int flag,
861 F* int argc, char *argv[]) P*A*Z*
863 P* Parameters: cmd_tbl_t *cmdtp
864 P* - Pointer to our command table entry
866 P* - If the CMD_FLAG_REPEAT bit is set, then this call is
871 P* - Array of the actual arguments
874 P* - 0 is always returned.
876 Z* Intention: Implement the "kbd" command.
877 Z* The keyboard status is read. The result is printed on
878 Z* the console and written into the "keybd" environment
881 D* Design: wd@denx.de
882 C* Coding: wd@denx.de
883 V* Verification: dzu@denx.de
884 ***********************************************************************/
885 int do_kbd (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
887 uchar kbd_data
[KEYBD_DATALEN
];
888 char keybd_env
[2 * KEYBD_DATALEN
+ 1];
892 #if 0 /* Done in kbd_init */
893 i2c_init (CONFIG_SYS_I2C_SPEED
, CONFIG_SYS_I2C_SLAVE
);
897 val
= KEYBD_CMD_READ_KEYS
;
898 i2c_write (kbd_addr
, 0, 0, &val
, 1);
899 i2c_read (kbd_addr
, 0, 0, kbd_data
, KEYBD_DATALEN
);
902 for (i
= 0; i
< KEYBD_DATALEN
; ++i
) {
903 sprintf (keybd_env
+ i
+ i
, "%02X", kbd_data
[i
]);
904 printf (" %02x", kbd_data
[i
]);
907 setenv ("keybd", keybd_env
);
913 "read keyboard status",
917 /* Read and set LSB switch */
918 #define CONFIG_SYS_PC_TXD1_ENA 0x0008 /* PC.12 */
920 /***********************************************************************
921 F* Function: int do_lsb (cmd_tbl_t *cmdtp, int flag,
922 F* int argc, char *argv[]) P*A*Z*
924 P* Parameters: cmd_tbl_t *cmdtp
925 P* - Pointer to our command table entry
927 P* - If the CMD_FLAG_REPEAT bit is set, then this call is
932 P* - Array of the actual arguments
935 P* - 0 The command was handled successfully
936 P* 1 An error occurred
938 Z* Intention: Implement the "lsb [on|off]" commands.
939 Z* The lsb is switched according to the first parameter by
940 Z* by signaling the PIC I/O expander.
941 Z* Called with no arguments, the current setting is
944 D* Design: wd@denx.de
945 C* Coding: wd@denx.de
946 V* Verification: dzu@denx.de
947 ***********************************************************************/
948 int do_lsb (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
951 immap_t
*immr
= (immap_t
*) CONFIG_SYS_IMMR
;
954 case 1: /* lsb - print setting */
955 val
= pic_read (0x60);
956 printf ("LSB is o%s\n", (val
& 0x20) ? "n" : "ff");
958 case 2: /* lsb on or lsb off - set switch */
959 val
= pic_read (0x60);
961 if (strcmp (argv
[1], "on") == 0) {
963 immr
->im_ioport
.iop_pcpar
&= ~(CONFIG_SYS_PC_TXD1_ENA
);
964 immr
->im_ioport
.iop_pcdat
|= CONFIG_SYS_PC_TXD1_ENA
;
965 immr
->im_ioport
.iop_pcdir
|= CONFIG_SYS_PC_TXD1_ENA
;
966 } else if (strcmp (argv
[1], "off") == 0) {
968 immr
->im_ioport
.iop_pcpar
&= ~(CONFIG_SYS_PC_TXD1_ENA
);
969 immr
->im_ioport
.iop_pcdat
&= ~(CONFIG_SYS_PC_TXD1_ENA
);
970 immr
->im_ioport
.iop_pcdir
|= CONFIG_SYS_PC_TXD1_ENA
;
974 pic_write (0x60, val
);
985 "check and set LSB switch",
986 "on - switch LSB on\n"
987 "lsb off - switch LSB off\n"
988 "lsb - print current setting\n"
993 /*----------------------------- Utilities -----------------------------*/
994 /***********************************************************************
995 F* Function: uchar pic_read (uchar reg) P*A*Z*
997 P* Parameters: uchar reg
998 P* - Register to read
1000 P* Returnvalue: uchar
1001 P* - Value read from register
1003 Z* Intention: Read a register from the PIC I/O expander.
1005 D* Design: wd@denx.de
1006 C* Coding: wd@denx.de
1007 V* Verification: dzu@denx.de
1008 ***********************************************************************/
1009 uchar
pic_read (uchar reg
)
1011 return (i2c_reg_read (CONFIG_SYS_I2C_PICIO_ADDR
, reg
));
1014 /***********************************************************************
1015 F* Function: void pic_write (uchar reg, uchar val) P*A*Z*
1017 P* Parameters: uchar reg
1018 P* - Register to read
1022 P* Returnvalue: none
1024 Z* Intention: Write to a register on the PIC I/O expander.
1026 D* Design: wd@denx.de
1027 C* Coding: wd@denx.de
1028 V* Verification: dzu@denx.de
1029 ***********************************************************************/
1030 void pic_write (uchar reg
, uchar val
)
1032 i2c_reg_write (CONFIG_SYS_I2C_PICIO_ADDR
, reg
, val
);
1035 /*---------------------- Board Control Functions ----------------------*/
1036 /***********************************************************************
1037 F* Function: void board_poweroff (void) P*A*Z*
1041 P* Returnvalue: none
1043 Z* Intention: Turn off the battery power and loop endless, so this
1044 Z* should better be the last function you call...
1046 D* Design: wd@denx.de
1047 C* Coding: wd@denx.de
1048 V* Verification: dzu@denx.de
1049 ***********************************************************************/
1050 void board_poweroff (void)
1052 /* Turn battery off */
1053 ((volatile immap_t
*)CONFIG_SYS_IMMR
)->im_ioport
.iop_pcdat
&= ~(1 << (31 - 13));
1058 #ifdef CONFIG_MODEM_SUPPORT
1059 static int key_pressed(void)
1061 uchar kbd_data
[KEYBD_DATALEN
];
1065 val
= KEYBD_CMD_READ_KEYS
;
1066 i2c_write (kbd_addr
, 0, 0, &val
, 1);
1067 i2c_read (kbd_addr
, 0, 0, kbd_data
, KEYBD_DATALEN
);
1069 return (compare_magic(kbd_data
, (uchar
*)CONFIG_MODEM_KEY_MAGIC
) == 0);
1071 #endif /* CONFIG_MODEM_SUPPORT */
1075 * Returns 1 if keys pressed to start the power-on long-running tests
1076 * Called from board_init_f().
1078 int post_hotkeys_pressed(void)
1080 uchar kbd_data
[KEYBD_DATALEN
];
1084 val
= KEYBD_CMD_READ_KEYS
;
1085 i2c_write (kbd_addr
, 0, 0, &val
, 1);
1086 i2c_read (kbd_addr
, 0, 0, kbd_data
, KEYBD_DATALEN
);
1088 return (compare_magic(kbd_data
, (uchar
*)CONFIG_POST_KEY_MAGIC
) == 0);