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-rw-r--r--board/trab/cmd_trab.c883
1 files changed, 452 insertions, 431 deletions
diff --git a/board/trab/cmd_trab.c b/board/trab/cmd_trab.c
index 78e14bd..509e071 100644
--- a/board/trab/cmd_trab.c
+++ b/board/trab/cmd_trab.c
@@ -21,6 +21,8 @@
* MA 02111-1307 USA
*/
+#undef DEBUG
+
#include <common.h>
#include <command.h>
#include <s3c2400.h>
@@ -71,7 +73,7 @@
#define I2C_EEPROM_DEV_ADDR 0x54
/* EEPROM address map */
-#define EE_ADDR_TEST 128
+#define EE_ADDR_TEST 192
#define EE_ADDR_MAX_CYCLES 256
#define EE_ADDR_STATUS 258
#define EE_ADDR_PASS_CYCLES 259
@@ -148,7 +150,7 @@ u16 act_cycle;
typedef struct test_function_s {
unsigned char *name;
- int (*pf)(void);
+ int (*pf)(void);
} test_function_t;
/* max number of Burn In Functions */
@@ -160,245 +162,251 @@ test_function_t test_function[BIF_MAX];
int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
- int i;
- int cycle_status;
+ int i;
+ int cycle_status;
- if (argc > 1) {
+ if (argc > 1) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
- led_init ();
- global_vars_init ();
- test_function_table_init ();
-
- if (global_vars_write_to_eeprom () != 0) {
- printf ("%s: error writing global_vars to eeprom\n",
- __FUNCTION__);
- return (1);
- }
-
- if (read_max_cycles () != 0) {
- printf ("%s: error reading max_cycles from eeprom\n",
- __FUNCTION__);
- return (1);
- }
-
- if (max_cycles == 0) {
- printf ("%s: error, burn in max_cycles = 0\n", __FUNCTION__);
- return (1);
- }
-
- status = 0;
- for (act_cycle = 1; act_cycle <= max_cycles; act_cycle++) {
-
- cycle_status = 0;
- for (i = 0; i < BIF_MAX; i++) {
-
- /* call test function */
- if ((*test_function[i].pf)() != 0) {
- printf ("error in %s test\n",
- test_function[i].name);
-
- /* is it the first error? */
- if (status == 0) {
- status = 1;
- first_error_cycle = act_cycle;
-
- /* do not use error_num 0 */
- first_error_num = i+1;
- strncpy (first_error_name,
- test_function[i].name,
- sizeof (first_error_name));
- led_set (0);
- }
- cycle_status = 1;
- }
- }
- /* were all tests of actual cycle OK? */
- if (cycle_status == 0)
- pass_cycles++;
-
- /* set status LED if no error is occoured since yet */
- if (status == 0)
- led_set (1);
-
- printf ("%s: cycle %d finished\n", __FUNCTION__, act_cycle);
-
- /* pause between cycles */
- sdelay (BURN_IN_CYCLE_DELAY);
- }
-
- if (global_vars_write_to_eeprom () != 0) {
- led_set (0);
- printf ("%s: error writing global_vars to eeprom\n",
- __FUNCTION__);
- status = 1;
- }
-
- if (status == 0) {
- led_blink (); /* endless loop!! */
- return (0);
- } else {
- led_set (0);
- return (1);
- }
+ led_init ();
+ global_vars_init ();
+ test_function_table_init ();
+
+ if (global_vars_write_to_eeprom () != 0) {
+ printf ("%s: error writing global_vars to eeprom\n",
+ __FUNCTION__);
+ return (1);
+ }
+
+ if (read_max_cycles () != 0) {
+ printf ("%s: error reading max_cycles from eeprom\n",
+ __FUNCTION__);
+ return (1);
+ }
+
+ if (max_cycles == 0) {
+ printf ("%s: error, burn in max_cycles = 0\n", __FUNCTION__);
+ return (1);
+ }
+
+ status = 0;
+ for (act_cycle = 1; act_cycle <= max_cycles; act_cycle++) {
+
+ cycle_status = 0;
+
+ /*
+ * avoid timestamp overflow problem after about 68 minutes of
+ * udelay() time.
+ */
+ reset_timer_masked ();
+ for (i = 0; i < BIF_MAX; i++) {
+
+ /* call test function */
+ if ((*test_function[i].pf)() != 0) {
+ printf ("error in %s test\n",
+ test_function[i].name);
+
+ /* is it the first error? */
+ if (status == 0) {
+ status = 1;
+ first_error_cycle = act_cycle;
+
+ /* do not use error_num 0 */
+ first_error_num = i+1;
+ strncpy (first_error_name,
+ test_function[i].name,
+ sizeof (first_error_name));
+ led_set (0);
+ }
+ cycle_status = 1;
+ }
+ }
+ /* were all tests of actual cycle OK? */
+ if (cycle_status == 0)
+ pass_cycles++;
+
+ /* set status LED if no error is occoured since yet */
+ if (status == 0)
+ led_set (1);
+
+ printf ("%s: cycle %d finished\n", __FUNCTION__, act_cycle);
+
+ /* pause between cycles */
+ sdelay (BURN_IN_CYCLE_DELAY);
+ }
+
+ if (global_vars_write_to_eeprom () != 0) {
+ led_set (0);
+ printf ("%s: error writing global_vars to eeprom\n",
+ __FUNCTION__);
+ status = 1;
+ }
+
+ if (status == 0) {
+ led_blink (); /* endless loop!! */
+ return (0);
+ } else {
+ led_set (0);
+ return (1);
+ }
}
U_BOOT_CMD(
- burn_in, 1, 1, do_burn_in,
- "burn_in - start burn-in test application on TRAB\n",
- "\n"
- " - start burn-in test application\n"
- " The burn-in test could took a while to finish!\n"
- " The content of the onboard EEPROM is modified!\n"
+ burn_in, 1, 1, do_burn_in,
+ "burn_in - start burn-in test application on TRAB\n",
+ "\n"
+ " - start burn-in test application\n"
+ " The burn-in test could took a while to finish!\n"
+ " The content of the onboard EEPROM is modified!\n"
);
int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
- int i, dip;
+ int i, dip;
- if (argc > 1) {
+ if (argc > 1) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
- if ((dip = read_dip ()) == -1) {
- return 1;
- }
+ if ((dip = read_dip ()) == -1) {
+ return 1;
+ }
- for (i = 0; i < 4; i++) {
- if ((dip & (1 << i)) == 0)
- printf("0");
- else
- printf("1");
- }
- printf("\n");
+ for (i = 0; i < 4; i++) {
+ if ((dip & (1 << i)) == 0)
+ printf("0");
+ else
+ printf("1");
+ }
+ printf("\n");
return 0;
}
U_BOOT_CMD(
- dip, 1, 1, do_dip,
- "dip - read dip switch on TRAB\n",
- "\n"
- " - read state of dip switch (S1) on TRAB board\n"
- " read sequence: 1-2-3-4; ON=1; OFF=0; e.g.: \"0100\"\n"
+ dip, 1, 1, do_dip,
+ "dip - read dip switch on TRAB\n",
+ "\n"
+ " - read state of dip switch (S1) on TRAB board\n"
+ " read sequence: 1-2-3-4; ON=1; OFF=0; e.g.: \"0100\"\n"
);
int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
- int vcc5v;
+ int vcc5v;
- if (argc > 1) {
+ if (argc > 1) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
- if ((vcc5v = read_vcc5v ()) == -1) {
- return (1);
- }
+ if ((vcc5v = read_vcc5v ()) == -1) {
+ return (1);
+ }
- printf ("%d", (vcc5v / 1000));
- printf (".%d", (vcc5v % 1000) / 100);
- printf ("%d V\n", (vcc5v % 100) / 10) ;
+ printf ("%d", (vcc5v / 1000));
+ printf (".%d", (vcc5v % 1000) / 100);
+ printf ("%d V\n", (vcc5v % 100) / 10) ;
return 0;
}
U_BOOT_CMD(
- vcc5v, 1, 1, do_vcc5v,
- "vcc5v - read VCC5V on TRAB\n",
- "\n"
- " - read actual value of voltage VCC5V\n"
+ vcc5v, 1, 1, do_vcc5v,
+ "vcc5v - read VCC5V on TRAB\n",
+ "\n"
+ " - read actual value of voltage VCC5V\n"
);
int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
- int contact_temp;
+ int contact_temp;
- if (argc > 1) {
+ if (argc > 1) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
- spi_init ();
- tsc2000_reg_init ();
+ spi_init ();
+ tsc2000_reg_init ();
- contact_temp = tsc2000_contact_temp();
- printf ("%d degree C * 100\n", contact_temp) ;
+ contact_temp = tsc2000_contact_temp();
+ printf ("%d degree C * 100\n", contact_temp) ;
return 0;
}
U_BOOT_CMD(
- c_temp, 1, 1, do_contact_temp,
- "c_temp - read contact temperature on TRAB\n",
- "\n"
- " - reads the onboard temperature (=contact temperature)\n"
+ c_temp, 1, 1, do_contact_temp,
+ "c_temp - read contact temperature on TRAB\n",
+ "\n"
+ " - reads the onboard temperature (=contact temperature)\n"
);
int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
- if (argc > 1) {
+ if (argc > 1) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_STATUS, 1,
- (unsigned char*) &status, 1)) {
- return (1);
- }
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_PASS_CYCLES, 1,
- (unsigned char*) &pass_cycles, 2)) {
- return (1);
- }
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_CYCLE,
- 1, (unsigned char*) &first_error_cycle, 2)) {
- return (1);
- }
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NUM,
- 1, (unsigned char*) &first_error_num, 1)) {
- return (1);
- }
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NAME,
- 1, first_error_name,
- sizeof (first_error_name))) {
- return (1);
- }
-
- if (read_max_cycles () != 0) {
- return (1);
- }
-
- printf ("max_cycles = %d\n", max_cycles);
- printf ("status = %d\n", status);
- printf ("pass_cycles = %d\n", pass_cycles);
- printf ("first_error_cycle = %d\n", first_error_cycle);
- printf ("first_error_num = %d\n", first_error_num);
- printf ("first_error_name = %.*s\n",(int) sizeof(first_error_name),
- first_error_name);
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_STATUS, 1,
+ (unsigned char*) &status, 1)) {
+ return (1);
+ }
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_PASS_CYCLES, 1,
+ (unsigned char*) &pass_cycles, 2)) {
+ return (1);
+ }
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_CYCLE,
+ 1, (unsigned char*) &first_error_cycle, 2)) {
+ return (1);
+ }
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NUM,
+ 1, (unsigned char*) &first_error_num, 1)) {
+ return (1);
+ }
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NAME,
+ 1, first_error_name,
+ sizeof (first_error_name))) {
+ return (1);
+ }
+
+ if (read_max_cycles () != 0) {
+ return (1);
+ }
+
+ printf ("max_cycles = %d\n", max_cycles);
+ printf ("status = %d\n", status);
+ printf ("pass_cycles = %d\n", pass_cycles);
+ printf ("first_error_cycle = %d\n", first_error_cycle);
+ printf ("first_error_num = %d\n", first_error_num);
+ printf ("first_error_name = %.*s\n",(int) sizeof(first_error_name),
+ first_error_name);
return 0;
}
U_BOOT_CMD(
- bis, 1, 1, do_burn_in_status,
- "bis - print burn in status on TRAB\n",
- "\n"
- " - prints the status variables of the last burn in test\n"
- " stored in the onboard EEPROM on TRAB board\n"
+ bis, 1, 1, do_burn_in_status,
+ "bis - print burn in status on TRAB\n",
+ "\n"
+ " - prints the status variables of the last burn in test\n"
+ " stored in the onboard EEPROM on TRAB board\n"
);
static int read_dip (void)
{
- unsigned int result = 0;
- int adc_val;
- int i;
+ unsigned int result = 0;
+ int adc_val;
+ int i;
/***********************************************************
DIP switch connection (according to wa4-cpu.sp.301.pdf, page 3):
@@ -413,11 +421,11 @@ static int read_dip (void)
for (i = 7; i > 3; i--) {
- if ((adc_val = adc_read (i)) == -1) {
- printf ("%s: Channel %d could not be read\n",
- __FUNCTION__, i);
- return (-1);
- }
+ if ((adc_val = adc_read (i)) == -1) {
+ printf ("%s: Channel %d could not be read\n",
+ __FUNCTION__, i);
+ return (-1);
+ }
/*
* Input voltage (switch open) is 1.8 V.
@@ -425,397 +433,410 @@ static int read_dip (void)
* Set trigger at halve that value.
*/
if (adc_val < 368)
- result |= (1 << (i-4));
- }
- return (result);
+ result |= (1 << (i-4));
+ }
+ return (result);
}
static int read_vcc5v (void)
{
- s32 result;
-
- /* VCC5V is connected to channel 2 */
-
- if ((result = adc_read (2)) == -1) {
- printf ("%s: VCC5V could not be read\n", __FUNCTION__);
- return (-1);
- }
- /*
- * Calculate voltage value. Split in two parts because there is no
- * floating point support. VCC5V is connected over an resistor divider:
- * VCC5V=ADCval*2,5V/1023*(10K+30K)/10K.
- */
- result = result * 10 * 1000 / 1023; /* result in mV */
-
- return (result);
+ s32 result;
+
+ /* VCC5V is connected to channel 2 */
+
+ if ((result = adc_read (2)) == -1) {
+ printf ("%s: VCC5V could not be read\n", __FUNCTION__);
+ return (-1);
+ }
+ /*
+ * Calculate voltage value. Split in two parts because there is no
+ * floating point support. VCC5V is connected over an resistor divider:
+ * VCC5V=ADCval*2,5V/1023*(10K+30K)/10K.
+ */
+ result = result * 10 * 1000 / 1023; /* result in mV */
+
+ return (result);
}
static int test_dip (void)
{
- static int first_run = 1;
- static int first_dip;
-
- if (first_run) {
- if ((first_dip = read_dip ()) == -1) {
- return (1);
- }
- first_run = 0;
- debug ("%s: first_dip=%d\n", __FUNCTION__, first_dip);
- }
- if (first_dip != read_dip ()) {
- return (1);
- } else {
- return (0);
- }
+ static int first_run = 1;
+ static int first_dip;
+
+ if (first_run) {
+ if ((first_dip = read_dip ()) == -1) {
+ return (1);
+ }
+ first_run = 0;
+ debug ("%s: first_dip=%d\n", __FUNCTION__, first_dip);
+ }
+ if (first_dip != read_dip ()) {
+ return (1);
+ } else {
+ return (0);
+ }
}
static int test_vcc5v (void)
{
- int vcc5v;
+ int vcc5v;
- if ((vcc5v = read_vcc5v ()) == -1) {
- return (1);
- }
+ if ((vcc5v = read_vcc5v ()) == -1) {
+ return (1);
+ }
- if ((vcc5v > VCC5V_MAX) || (vcc5v < VCC5V_MIN)) {
- return (1);
- } else {
- return (0);
- }
+ if ((vcc5v > VCC5V_MAX) || (vcc5v < VCC5V_MIN)) {
+ printf ("%s: vcc5v[V/100]=%d\n", __FUNCTION__, vcc5v);
+ return (1);
+ } else {
+ return (0);
+ }
}
static int test_rotary_switch (void)
{
- static int first_run = 1;
- static int first_rs;
-
- if (first_run) {
- /*
- * clear bits in CPLD, because they have random values after
- * power-up or reset.
- */
- *CPLD_ROTARY_SWITCH |= (1 << 16) | (1 << 17);
-
- first_rs = ((*CPLD_ROTARY_SWITCH >> 16) & 0x7);
- first_run = 0;
- debug ("%s: first_rs=%d\n", __FUNCTION__, first_rs);
- }
-
- if (first_rs != ((*CPLD_ROTARY_SWITCH >> 16) & 0x7)) {
- return (1);
- } else {
- return (0);
- }
+ static int first_run = 1;
+ static int first_rs;
+
+ if (first_run) {
+ /*
+ * clear bits in CPLD, because they have random values after
+ * power-up or reset.
+ */
+ *CPLD_ROTARY_SWITCH |= (1 << 16) | (1 << 17);
+
+ first_rs = ((*CPLD_ROTARY_SWITCH >> 16) & 0x7);
+ first_run = 0;
+ debug ("%s: first_rs=%d\n", __FUNCTION__, first_rs);
+ }
+
+ if (first_rs != ((*CPLD_ROTARY_SWITCH >> 16) & 0x7)) {
+ return (1);
+ } else {
+ return (0);
+ }
}
static int test_sram (void)
{
- return (memory_post_tests (SRAM_ADDR, SRAM_SIZE));
+ return (memory_post_tests (SRAM_ADDR, SRAM_SIZE));
}
static int test_eeprom (void)
{
- unsigned char temp[sizeof (EEPROM_TEST_STRING_1)];
- int result = 0;
-
- /* write test string 1, read back and verify */
- if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
- EEPROM_TEST_STRING_1,
- sizeof (EEPROM_TEST_STRING_1))) {
- return (1);
- }
-
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
- temp, sizeof (EEPROM_TEST_STRING_1))) {
- return (1);
- }
-
- if (strcmp (temp, EEPROM_TEST_STRING_1) != 0) {
- result = 1;
- printf ("%s: error; read_str = \"%s\"\n", __FUNCTION__, temp);
- }
-
- /* write test string 2, read back and verify */
- if (result == 0) {
- if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
- EEPROM_TEST_STRING_2,
- sizeof (EEPROM_TEST_STRING_2))) {
- return (1);
- }
-
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
- temp, sizeof (EEPROM_TEST_STRING_2))) {
- return (1);
- }
-
- if (strcmp (temp, EEPROM_TEST_STRING_2) != 0) {
- result = 1;
- printf ("%s: error; read str = \"%s\"\n",
- __FUNCTION__, temp);
- }
- }
- return (result);
+ unsigned char temp[sizeof (EEPROM_TEST_STRING_1)];
+ int result = 0;
+
+ /* write test string 1, read back and verify */
+ if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
+ EEPROM_TEST_STRING_1,
+ sizeof (EEPROM_TEST_STRING_1))) {
+ return (1);
+ }
+
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
+ temp, sizeof (EEPROM_TEST_STRING_1))) {
+ return (1);
+ }
+
+ if (strcmp (temp, EEPROM_TEST_STRING_1) != 0) {
+ result = 1;
+ printf ("%s: error; read_str = \"%s\"\n", __FUNCTION__, temp);
+ }
+
+ /* write test string 2, read back and verify */
+ if (result == 0) {
+ if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
+ EEPROM_TEST_STRING_2,
+ sizeof (EEPROM_TEST_STRING_2))) {
+ return (1);
+ }
+
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_TEST, 1,
+ temp, sizeof (EEPROM_TEST_STRING_2))) {
+ return (1);
+ }
+
+ if (strcmp (temp, EEPROM_TEST_STRING_2) != 0) {
+ result = 1;
+ printf ("%s: error; read str = \"%s\"\n",
+ __FUNCTION__, temp);
+ }
+ }
+ return (result);
}
static int test_contact_temp (void)
{
- int contact_temp;
+ int contact_temp;
- spi_init ();
- contact_temp = tsc2000_contact_temp ();
+ spi_init ();
+ contact_temp = tsc2000_contact_temp ();
- if ((contact_temp < MIN_CONTACT_TEMP)
- || (contact_temp > MAX_CONTACT_TEMP))
- return (1);
- else
- return (0);
+ if ((contact_temp < MIN_CONTACT_TEMP)
+ || (contact_temp > MAX_CONTACT_TEMP))
+ return (1);
+ else
+ return (0);
}
int i2c_write_multiple (uchar chip, uint addr, int alen,
uchar *buffer, int len)
{
- int i;
-
- if (alen != 1) {
- printf ("%s: addr len other than 1 not supported\n",
- __FUNCTION__);
- return (1);
- }
-
- for (i = 0; i < len; i++) {
- if (i2c_write (chip, addr+i, alen, buffer+i, 1)) {
- printf ("%s: could not write to i2c device %d"
- ", addr %d\n", __FUNCTION__, chip, addr);
- return (1);
- }
+ int i;
+
+ if (alen != 1) {
+ printf ("%s: addr len other than 1 not supported\n",
+ __FUNCTION__);
+ return (1);
+ }
+
+ for (i = 0; i < len; i++) {
+ if (i2c_write (chip, addr+i, alen, buffer+i, 1)) {
+ printf ("%s: could not write to i2c device %d"
+ ", addr %d\n", __FUNCTION__, chip, addr);
+ return (1);
+ }
#if 0
- printf ("chip=%#x, addr+i=%#x+%d=%p, alen=%d, *buffer+i="
- "%#x+%d=%p=\"%.1s\"\n", chip, addr, i, addr+i,
- alen, buffer, i, buffer+i, buffer+i);
+ printf ("chip=%#x, addr+i=%#x+%d=%p, alen=%d, *buffer+i="
+ "%#x+%d=%p=\"%.1s\"\n", chip, addr, i, addr+i,
+ alen, buffer, i, buffer+i, buffer+i);
#endif
- udelay (30000);
- }
- return (0);
+ udelay (30000);
+ }
+ return (0);
}
int i2c_read_multiple ( uchar chip, uint addr, int alen,
uchar *buffer, int len)
{
- int i;
-
- if (alen != 1) {
- printf ("%s: addr len other than 1 not supported\n",
- __FUNCTION__);
- return (1);
- }
-
- for (i = 0; i < len; i++) {
- if (i2c_read (chip, addr+i, alen, buffer+i, 1)) {
- printf ("%s: could not read from i2c device %#x"
- ", addr %d\n", __FUNCTION__, chip, addr);
- return (1);
- }
- }
- return (0);
+ int i;
+
+ if (alen != 1) {
+ printf ("%s: addr len other than 1 not supported\n",
+ __FUNCTION__);
+ return (1);
+ }
+
+ for (i = 0; i < len; i++) {
+ if (i2c_read (chip, addr+i, alen, buffer+i, 1)) {
+ printf ("%s: could not read from i2c device %#x"
+ ", addr %d\n", __FUNCTION__, chip, addr);
+ return (1);
+ }
+ }
+ return (0);
}
static int adc_read (unsigned int channel)
{
- int j = 1000; /* timeout value for wait loop in us */
- S3C2400_ADC *padc;
-
- padc = S3C2400_GetBase_ADC();
- channel &= 0x7;
+ int j = 1000; /* timeout value for wait loop in us */
+ int result;
+ S3C2400_ADC *padc;
- adc_init ();
+ padc = S3C2400_GetBase_ADC();
+ channel &= 0x7;
- debug ("%s: adccon %#x\n", __FUNCTION__, padc->ADCCON);
+ adc_init ();
- padc->ADCCON &= ~ADC_STDBM; /* select normal mode */
+ padc->ADCCON &= ~ADC_STDBM; /* select normal mode */
padc->ADCCON &= ~(0x7 << 3); /* clear the channel bits */
- padc->ADCCON |= ((channel << 3) | ADC_ENABLE_START);
+ padc->ADCCON |= ((channel << 3) | ADC_ENABLE_START);
- debug ("%s: reading ch %d, addcon %#x\n", __FUNCTION__,
- (padc->ADCCON >> 3) & 0x7, padc->ADCCON);
+ while (j--) {
+ if ((padc->ADCCON & ADC_ENABLE_START) == 0)
+ break;
+ udelay (1);
+ }
+
+ if (j == 0) {
+ printf("%s: ADC timeout\n", __FUNCTION__);
+ padc->ADCCON |= ADC_STDBM; /* select standby mode */
+ return -1;
+ }
- while (j--) {
- if ((padc->ADCCON & ADC_ENABLE_START) == 0)
- break;
- udelay (1);
- }
+ result = padc->ADCDAT & 0x3FF;
- if (j == 0) {
- printf("%s: ADC timeout\n", __FUNCTION__);
- padc->ADCCON |= ADC_STDBM; /* select standby mode */
- return -1;
- }
+ padc->ADCCON |= ADC_STDBM; /* select standby mode */
- padc->ADCCON |= ADC_STDBM; /* select standby mode */
+ debug ("%s: channel %d, result[DIGIT]=%d\n", __FUNCTION__,
+ (padc->ADCCON >> 3) & 0x7, result);
- debug ("%s: return %#x, adccon %#x\n", __FUNCTION__,
- padc->ADCDAT & 0x3FF, padc->ADCCON);
+ /*
+ * Wait for ADC to be ready for next conversion. This delay value was
+ * estimated, because the datasheet does not specify a value.
+ */
+ udelay (1000);
- return (padc->ADCDAT & 0x3FF);
+ return (result);
}
static void adc_init (void)
{
- S3C2400_ADC *padc;
+ S3C2400_ADC *padc;
- padc = S3C2400_GetBase_ADC();
+ padc = S3C2400_GetBase_ADC();
padc->ADCCON &= ~(0xff << 6); /* clear prescaler bits */
padc->ADCCON |= ((65 << 6) | ADC_PRSCEN); /* set prescaler */
- return;
+ /*
+ * Wait some time to avoid problem with very first call of
+ * adc_read(). Without this delay, sometimes the first read
+ * adc value is 0. Perhaps because the adjustment of prescaler
+ * takes some clock cycles?
+ */
+ udelay (1000);
+
+ return;
}
static void led_set (unsigned int state)
{
- S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
-
- led_init ();
-
- switch (state) {
- case 0: /* turn LED off */
- gpio->PADAT |= (1 << 12);
- break;
- case 1: /* turn LED on */
- gpio->PADAT &= ~(1 << 12);
- break;
- default:
- }
+ S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+
+ led_init ();
+
+ switch (state) {
+ case 0: /* turn LED off */
+ gpio->PADAT |= (1 << 12);
+ break;
+ case 1: /* turn LED on */
+ gpio->PADAT &= ~(1 << 12);
+ break;
+ default:
+ }
}
static void led_blink (void)
{
- led_init ();
-
- /* blink LED. This function does not return! */
- while (1) {
- led_set (1);
- udelay (1000000 / LED_BLINK_FREQ / 2);
- led_set (0);
- udelay (1000000 / LED_BLINK_FREQ / 2);
- }
+ led_init ();
+
+ /* blink LED. This function does not return! */
+ while (1) {
+ led_set (1);
+ udelay (1000000 / LED_BLINK_FREQ / 2);
+ led_set (0);
+ udelay (1000000 / LED_BLINK_FREQ / 2);
+ }
}
static void led_init (void)
{
- S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+ S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
- /* configure GPA12 as output and set to High -> LED off */
- gpio->PACON &= ~(1 << 12);
- gpio->PADAT |= (1 << 12);
+ /* configure GPA12 as output and set to High -> LED off */
+ gpio->PACON &= ~(1 << 12);
+ gpio->PADAT |= (1 << 12);
}
static void sdelay (unsigned long seconds)
{
- unsigned long i;
+ unsigned long i;
- for (i = 0; i < seconds; i++) {
- udelay (1000000);
- }
+ for (i = 0; i < seconds; i++) {
+ udelay (1000000);
+ }
}
static int global_vars_write_to_eeprom (void)
{
- if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_STATUS, 1,
- (unsigned char*) &status, 1)) {
- return (1);
- }
- if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_PASS_CYCLES, 1,
- (unsigned char*) &pass_cycles, 2)) {
- return (1);
- }
- if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_CYCLE,
- 1, (unsigned char*) &first_error_cycle, 2)) {
- return (1);
- }
- if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NUM,
- 1, (unsigned char*) &first_error_num, 1)) {
- return (1);
- }
- if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NAME,
- 1, first_error_name,
- sizeof(first_error_name))) {
- return (1);
- }
- return (0);
+ if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_STATUS, 1,
+ (unsigned char*) &status, 1)) {
+ return (1);
+ }
+ if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_PASS_CYCLES, 1,
+ (unsigned char*) &pass_cycles, 2)) {
+ return (1);
+ }
+ if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_CYCLE,
+ 1, (unsigned char*) &first_error_cycle, 2)) {
+ return (1);
+ }
+ if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NUM,
+ 1, (unsigned char*) &first_error_num, 1)) {
+ return (1);
+ }
+ if (i2c_write_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_FIRST_ERROR_NAME,
+ 1, first_error_name,
+ sizeof(first_error_name))) {
+ return (1);
+ }
+ return (0);
}
static void global_vars_init (void)
{
- status = 1; /* error */
- pass_cycles = 0;
- first_error_cycle = 0;
- first_error_num = 0;
- first_error_name[0] = '\0';
- act_cycle = 0;
- max_cycles = 0;
+ status = 1; /* error */
+ pass_cycles = 0;
+ first_error_cycle = 0;
+ first_error_num = 0;
+ first_error_name[0] = '\0';
+ act_cycle = 0;
+ max_cycles = 0;
}
static void test_function_table_init (void)
{
- int i;
+ int i;
- for (i = 0; i < BIF_MAX; i++)
+ for (i = 0; i < BIF_MAX; i++)
test_function[i].pf = dummy;
- /*
- * the length of "name" must not exceed 16, including the '\0'
- * termination. See also the EEPROM address map.
- */
- test_function[0].pf = test_dip;
- test_function[0].name = "dip";
+ /*
+ * the length of "name" must not exceed 16, including the '\0'
+ * termination. See also the EEPROM address map.
+ */
+ test_function[0].pf = test_dip;
+ test_function[0].name = "dip";
- test_function[1].pf = test_vcc5v;
- test_function[1].name = "vcc5v";
+ test_function[1].pf = test_vcc5v;
+ test_function[1].name = "vcc5v";
- test_function[2].pf = test_rotary_switch;
- test_function[2].name = "rotary_switch";
+ test_function[2].pf = test_rotary_switch;
+ test_function[2].name = "rotary_switch";
- test_function[3].pf = test_sram;
- test_function[3].name = "sram";
+ test_function[3].pf = test_sram;
+ test_function[3].name = "sram";
- test_function[4].pf = test_eeprom;
- test_function[4].name = "eeprom";
+ test_function[4].pf = test_eeprom;
+ test_function[4].name = "eeprom";
- test_function[5].pf = test_contact_temp;
- test_function[5].name = "contact_temp";
+ test_function[5].pf = test_contact_temp;
+ test_function[5].name = "contact_temp";
}
static int read_max_cycles (void)
{
- if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_MAX_CYCLES, 1,
- (unsigned char *) &max_cycles, 2) != 0) {
- return (1);
- }
+ if (i2c_read_multiple (I2C_EEPROM_DEV_ADDR, EE_ADDR_MAX_CYCLES, 1,
+ (unsigned char *) &max_cycles, 2) != 0) {
+ return (1);
+ }
- return (0);
+ return (0);
}
static int dummy(void)
{
- return (0);
+ return (0);
}
#endif /* CFG_CMD_BSP */
generated by cgit v1.1 at 2024-12-04 19:46:07 +0000