3 * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.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 * TRAB board specific commands. Especially commands for burn-in and function
34 #if (CONFIG_COMMANDS & CFG_CMD_BSP)
36 /* limits for valid range of VCC5V in mV */
37 #define VCC5V_MIN 4500
38 #define VCC5V_MAX 5500
41 * Test strings for EEPROM test. Length of string 2 must not exceed length of
42 * string 1. Otherwise a buffer overrun could occur!
44 #define EEPROM_TEST_STRING_1 "0987654321 :tset a si siht"
45 #define EEPROM_TEST_STRING_2 "this is a test: 1234567890"
48 * min/max limits for valid contact temperature during burn in test (in
49 * degree Centigrade * 100)
51 #define MIN_CONTACT_TEMP -1000
52 #define MAX_CONTACT_TEMP +9000
54 /* blinking frequency of status LED */
55 #define LED_BLINK_FREQ 5
57 /* delay time between burn in cycles in seconds */
58 #ifndef BURN_IN_CYCLE_DELAY /* if not defined in include/configs/trab.h */
59 #define BURN_IN_CYCLE_DELAY 5
62 /* physical SRAM parameters */
63 #define SRAM_ADDR 0x02000000 /* GCS1 */
64 #define SRAM_SIZE 0x40000 /* 256 kByte */
66 /* CPLD-Register for controlling TRAB hardware functions */
67 #define CPLD_BUTTONS ((volatile unsigned long *)0x04020000)
68 #define CPLD_FILL_LEVEL ((volatile unsigned long *)0x04008000)
69 #define CPLD_ROTARY_SWITCH ((volatile unsigned long *)0x04018000)
70 #define CPLD_RS485_RE ((volatile unsigned long *)0x04028000)
72 /* I2C EEPROM device address */
73 #define I2C_EEPROM_DEV_ADDR 0x54
75 /* EEPROM address map */
76 #define EE_ADDR_TEST 192
77 #define EE_ADDR_MAX_CYCLES 256
78 #define EE_ADDR_STATUS 258
79 #define EE_ADDR_PASS_CYCLES 259
80 #define EE_ADDR_FIRST_ERROR_CYCLE 261
81 #define EE_ADDR_FIRST_ERROR_NUM 263
82 #define EE_ADDR_FIRST_ERROR_NAME 264
83 #define EE_ADDR_ACT_CYCLE 280
85 /* Bit definitions for ADCCON */
86 #define ADC_ENABLE_START 0x1
87 #define ADC_READ_START 0x2
89 #define ADC_INP_AIN0 (0x0 << 3)
90 #define ADC_INP_AIN1 (0x1 << 3)
91 #define ADC_INP_AIN2 (0x2 << 3)
92 #define ADC_INP_AIN3 (0x3 << 3)
93 #define ADC_INP_AIN4 (0x4 << 3)
94 #define ADC_INP_AIN5 (0x5 << 3)
95 #define ADC_INP_AIN6 (0x6 << 3)
96 #define ADC_INP_AIN7 (0x7 << 3)
97 #define ADC_PRSCEN 0x4000
98 #define ADC_ECFLG 0x800
103 extern int memory_post_tests (unsigned long start, unsigned long size);
104 extern int i2c_write (uchar, uint, int , uchar* , int);
105 extern int i2c_read (uchar, uint, int , uchar* , int);
106 extern void tsc2000_reg_init (void);
107 extern s32 tsc2000_contact_temp (void);
108 extern void spi_init(void);
110 /* function declarations */
111 int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
112 int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
113 int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
114 int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
115 int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
116 int i2c_write_multiple (uchar chip, uint addr, int alen,
117 uchar *buffer, int len);
118 int i2c_read_multiple (uchar chip, uint addr, int alen,
119 uchar *buffer, int len);
121 /* helper functions */
122 static void adc_init (void);
123 static int adc_read (unsigned int channel);
124 static int read_dip (void);
125 static int read_vcc5v (void);
126 static int test_dip (void);
127 static int test_vcc5v (void);
128 static int test_rotary_switch (void);
129 static int test_sram (void);
130 static int test_eeprom (void);
131 static int test_contact_temp (void);
132 static void led_set (unsigned int);
133 static void led_blink (void);
134 static void led_init (void);
135 static void sdelay (unsigned long seconds); /* delay in seconds */
136 static int dummy (void);
137 static int read_max_cycles(void);
138 static void test_function_table_init (void);
139 static void global_vars_init (void);
140 static int global_vars_write_to_eeprom (void);
146 u16 first_error_cycle;
148 unsigned char first_error_name[16];
151 typedef struct test_function_s {
156 /* max number of Burn In Functions */
159 /* table with burn in functions */
160 test_function_t test_function[BIF_MAX];
163 int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
169 printf ("Usage:\n%s\n", cmdtp->usage);
175 test_function_table_init ();
177 if (global_vars_write_to_eeprom () != 0) {
178 printf ("%s: error writing global_vars to eeprom\n",
183 if (read_max_cycles () != 0) {
184 printf ("%s: error reading max_cycles from eeprom\n",
189 if (max_cycles == 0) {
190 printf ("%s: error, burn in max_cycles = 0\n", __FUNCTION__);
195 for (act_cycle = 1; act_cycle <= max_cycles; act_cycle++) {
200 * avoid timestamp overflow problem after about 68 minutes of
203 reset_timer_masked ();
204 for (i = 0; i < BIF_MAX; i++) {
206 /* call test function */
207 if ((*test_function[i].pf)() != 0) {
208 printf ("error in %s test\n",
209 test_function[i].name);
211 /* is it the first error? */
214 first_error_cycle = act_cycle;
216 /* do not use error_num 0 */
217 first_error_num = i+1;
218 strncpy (first_error_name,
219 test_function[i].name,
220 sizeof (first_error_name));
226 /* were all tests of actual cycle OK? */
227 if (cycle_status == 0)
230 /* set status LED if no error is occoured since yet */
234 printf ("%s: cycle %d finished\n", __FUNCTION__, act_cycle);
236 /* pause between cycles */
237 sdelay (BURN_IN_CYCLE_DELAY);
240 if (global_vars_write_to_eeprom () != 0) {
242 printf ("%s: error writing global_vars to eeprom\n",
248 led_blink (); /* endless loop!! */
257 burn_in, 1, 1, do_burn_in,
258 "burn_in - start burn-in test application on TRAB\n",
260 " - start burn-in test application\n"
261 " The burn-in test could took a while to finish!\n"
262 " The content of the onboard EEPROM is modified!\n"
266 int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
271 printf ("Usage:\n%s\n", cmdtp->usage);
275 if ((dip = read_dip ()) == -1) {
279 for (i = 0; i < 4; i++) {
280 if ((dip & (1 << i)) == 0)
292 "dip - read dip switch on TRAB\n",
294 " - read state of dip switch (S1) on TRAB board\n"
295 " read sequence: 1-2-3-4; ON=1; OFF=0; e.g.: \"0100\"\n"
299 int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
304 printf ("Usage:\n%s\n", cmdtp->usage);
308 if ((vcc5v = read_vcc5v ()) == -1) {
312 printf ("%d", (vcc5v / 1000));
313 printf (".%d", (vcc5v % 1000) / 100);
314 printf ("%d V\n", (vcc5v % 100) / 10) ;
320 vcc5v, 1, 1, do_vcc5v,
321 "vcc5v - read VCC5V on TRAB\n",
323 " - read actual value of voltage VCC5V\n"
327 int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
332 printf ("Usage:\n%s\n", cmdtp->usage);
339 contact_temp = tsc2000_contact_temp();
340 printf ("%d degree C * 100\n", contact_temp) ;
346 c_temp, 1, 1, do_contact_temp,
347 "c_temp - read contact temperature on TRAB\n",
349 " - reads the onboard temperature (=contact temperature)\n"
353 int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
356 printf ("Usage:\n%s\n", cmdtp->usage);
360 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_STATUS, 1,
361 (unsigned char*) &status, 1)) {
364 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_PASS_CYCLES, 1,
365 (unsigned char*) &pass_cycles, 2)) {
368 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_CYCLE,
369 1, (unsigned char*) &first_error_cycle, 2)) {
372 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NUM,
373 1, (unsigned char*) &first_error_num, 1)) {
376 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NAME,
378 sizeof (first_error_name))) {
382 if (read_max_cycles () != 0) {
386 printf ("max_cycles = %d\n", max_cycles);
387 printf ("status = %d\n", status);
388 printf ("pass_cycles = %d\n", pass_cycles);
389 printf ("first_error_cycle = %d\n", first_error_cycle);
390 printf ("first_error_num = %d\n", first_error_num);
391 printf ("first_error_name = %.*s\n",(int) sizeof(first_error_name),
398 bis, 1, 1, do_burn_in_status,
399 "bis - print burn in status on TRAB\n",
401 " - prints the status variables of the last burn in test\n"
402 " stored in the onboard EEPROM on TRAB board\n"
405 static int read_dip (void)
407 unsigned int result = 0;
411 /***********************************************************
412 DIP switch connection (according to wa4-cpu.sp.301.pdf, page 3):
418 "On" DIP switch position short-circuits the voltage from
419 the input channel (i.e. '0' conversion result means "on").
420 *************************************************************/
422 for (i = 7; i > 3; i--) {
424 if ((adc_val = adc_read (i)) == -1) {
425 printf ("%s: Channel %d could not be read\n",
431 * Input voltage (switch open) is 1.8 V.
432 * (Vin_High/VRef)*adc_res = (1,8V/2,5V)*1023) = 736
433 * Set trigger at halve that value.
436 result |= (1 << (i-4));
442 static int read_vcc5v (void)
446 /* VCC5V is connected to channel 2 */
448 if ((result = adc_read (2)) == -1) {
449 printf ("%s: VCC5V could not be read\n", __FUNCTION__);
453 * Calculate voltage value. Split in two parts because there is no
454 * floating point support. VCC5V is connected over an resistor divider:
455 * VCC5V=ADCval*2,5V/1023*(10K+30K)/10K.
457 result = result * 10 * 1000 / 1023; /* result in mV */
463 static int test_dip (void)
465 static int first_run = 1;
466 static int first_dip;
469 if ((first_dip = read_dip ()) == -1) {
473 debug ("%s: first_dip=%d\n", __FUNCTION__, first_dip);
475 if (first_dip != read_dip ()) {
483 static int test_vcc5v (void)
487 if ((vcc5v = read_vcc5v ()) == -1) {
491 if ((vcc5v > VCC5V_MAX) || (vcc5v < VCC5V_MIN)) {
492 printf ("%s: vcc5v[V/100]=%d\n", __FUNCTION__, vcc5v);
500 static int test_rotary_switch (void)
502 static int first_run = 1;
507 * clear bits in CPLD, because they have random values after
510 *CPLD_ROTARY_SWITCH |= (1 << 16) | (1 << 17);
512 first_rs = ((*CPLD_ROTARY_SWITCH >> 16) & 0x7);
514 debug ("%s: first_rs=%d\n", __FUNCTION__, first_rs);
517 if (first_rs != ((*CPLD_ROTARY_SWITCH >> 16) & 0x7)) {
525 static int test_sram (void)
527 return (memory_post_tests (SRAM_ADDR, SRAM_SIZE));
531 static int test_eeprom (void)
533 unsigned char temp[sizeof (EEPROM_TEST_STRING_1)];
536 /* write test string 1, read back and verify */
537 if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
538 EEPROM_TEST_STRING_1,
539 sizeof (EEPROM_TEST_STRING_1))) {
543 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
544 temp, sizeof (EEPROM_TEST_STRING_1))) {
548 if (strcmp (temp, EEPROM_TEST_STRING_1) != 0) {
550 printf ("%s: error; read_str = \"%s\"\n", __FUNCTION__, temp);
553 /* write test string 2, read back and verify */
555 if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
556 EEPROM_TEST_STRING_2,
557 sizeof (EEPROM_TEST_STRING_2))) {
561 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
562 temp, sizeof (EEPROM_TEST_STRING_2))) {
566 if (strcmp (temp, EEPROM_TEST_STRING_2) != 0) {
568 printf ("%s: error; read str = \"%s\"\n",
576 static int test_contact_temp (void)
581 contact_temp = tsc2000_contact_temp ();
583 if ((contact_temp < MIN_CONTACT_TEMP)
584 || (contact_temp > MAX_CONTACT_TEMP))
591 int i2c_write_multiple (uchar chip, uint addr, int alen,
592 uchar *buffer, int len)
597 printf ("%s: addr len other than 1 not supported\n",
602 for (i = 0; i < len; i++) {
603 if (i2c_write (chip, addr+i, alen, buffer+i, 1)) {
604 printf ("%s: could not write to i2c device %d"
605 ", addr %d\n", __FUNCTION__, chip, addr);
609 printf ("chip=%#x, addr+i=%#x+%d=%p, alen=%d, *buffer+i="
610 "%#x+%d=%p=\"%.1s\"\n", chip, addr, i, addr+i,
611 alen, buffer, i, buffer+i, buffer+i);
620 int i2c_read_multiple ( uchar chip, uint addr, int alen,
621 uchar *buffer, int len)
626 printf ("%s: addr len other than 1 not supported\n",
631 for (i = 0; i < len; i++) {
632 if (i2c_read (chip, addr+i, alen, buffer+i, 1)) {
633 printf ("%s: could not read from i2c device %#x"
634 ", addr %d\n", __FUNCTION__, chip, addr);
642 static int adc_read (unsigned int channel)
644 int j = 1000; /* timeout value for wait loop in us */
648 padc = S3C2400_GetBase_ADC();
653 padc->ADCCON &= ~ADC_STDBM; /* select normal mode */
654 padc->ADCCON &= ~(0x7 << 3); /* clear the channel bits */
655 padc->ADCCON |= ((channel << 3) | ADC_ENABLE_START);
658 if ((padc->ADCCON & ADC_ENABLE_START) == 0)
664 printf("%s: ADC timeout\n", __FUNCTION__);
665 padc->ADCCON |= ADC_STDBM; /* select standby mode */
669 result = padc->ADCDAT & 0x3FF;
671 padc->ADCCON |= ADC_STDBM; /* select standby mode */
673 debug ("%s: channel %d, result[DIGIT]=%d\n", __FUNCTION__,
674 (padc->ADCCON >> 3) & 0x7, result);
677 * Wait for ADC to be ready for next conversion. This delay value was
678 * estimated, because the datasheet does not specify a value.
686 static void adc_init (void)
690 padc = S3C2400_GetBase_ADC();
692 padc->ADCCON &= ~(0xff << 6); /* clear prescaler bits */
693 padc->ADCCON |= ((65 << 6) | ADC_PRSCEN); /* set prescaler */
696 * Wait some time to avoid problem with very first call of
697 * adc_read(). Without this delay, sometimes the first read
698 * adc value is 0. Perhaps because the adjustment of prescaler
699 * takes some clock cycles?
707 static void led_set (unsigned int state)
709 S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
714 case 0: /* turn LED off */
715 gpio->PADAT |= (1 << 12);
717 case 1: /* turn LED on */
718 gpio->PADAT &= ~(1 << 12);
724 static void led_blink (void)
728 /* blink LED. This function does not return! */
731 udelay (1000000 / LED_BLINK_FREQ / 2);
733 udelay (1000000 / LED_BLINK_FREQ / 2);
738 static void led_init (void)
740 S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
742 /* configure GPA12 as output and set to High -> LED off */
743 gpio->PACON &= ~(1 << 12);
744 gpio->PADAT |= (1 << 12);
748 static void sdelay (unsigned long seconds)
752 for (i = 0; i < seconds; i++) {
758 static int global_vars_write_to_eeprom (void)
760 if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_STATUS, 1,
761 (unsigned char*) &status, 1)) {
764 if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_PASS_CYCLES, 1,
765 (unsigned char*) &pass_cycles, 2)) {
768 if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_CYCLE,
769 1, (unsigned char*) &first_error_cycle, 2)) {
772 if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NUM,
773 1, (unsigned char*) &first_error_num, 1)) {
776 if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NAME,
778 sizeof(first_error_name))) {
784 static void global_vars_init (void)
786 status = 1; /* error */
788 first_error_cycle = 0;
790 first_error_name[0] = '\0';
796 static void test_function_table_init (void)
800 for (i = 0; i < BIF_MAX; i++)
801 test_function[i].pf = dummy;
804 * the length of "name" must not exceed 16, including the '\0'
805 * termination. See also the EEPROM address map.
807 test_function[0].pf = test_dip;
808 test_function[0].name = "dip";
810 test_function[1].pf = test_vcc5v;
811 test_function[1].name = "vcc5v";
813 test_function[2].pf = test_rotary_switch;
814 test_function[2].name = "rotary_switch";
816 test_function[3].pf = test_sram;
817 test_function[3].name = "sram";
819 test_function[4].pf = test_eeprom;
820 test_function[4].name = "eeprom";
822 test_function[5].pf = test_contact_temp;
823 test_function[5].name = "contact_temp";
827 static int read_max_cycles (void)
829 if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_MAX_CYCLES, 1,
830 (unsigned char *) &max_cycles, 2) != 0) {
837 static int dummy(void)
842 #endif /* CFG_CMD_BSP */