|
@@ -39,9 +39,7 @@
|
|
|
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
|
|
|
#include <i2c.h>
|
|
|
|
|
|
-extern int i2c_soft_read_pin (void);
|
|
|
-
|
|
|
-int ivm_calc_crc (unsigned char *buf, int len)
|
|
|
+int ivm_calc_crc(unsigned char *buf, int len)
|
|
|
{
|
|
|
const unsigned short crc_tab[16] = {
|
|
|
0x0000, 0xCC01, 0xD801, 0x1400,
|
|
@@ -71,20 +69,20 @@ int ivm_calc_crc (unsigned char *buf, int len)
|
|
|
return crc;
|
|
|
}
|
|
|
|
|
|
-static int ivm_set_value (char *name, char *value)
|
|
|
+static int ivm_set_value(char *name, char *value)
|
|
|
{
|
|
|
char tempbuf[256];
|
|
|
|
|
|
if (value != NULL) {
|
|
|
- sprintf (tempbuf, "%s=%s", name, value);
|
|
|
- return set_local_var (tempbuf, 0);
|
|
|
+ sprintf(tempbuf, "%s=%s", name, value);
|
|
|
+ return set_local_var(tempbuf, 0);
|
|
|
} else {
|
|
|
- unset_local_var (name);
|
|
|
+ unset_local_var(name);
|
|
|
}
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
|
|
|
+static int ivm_get_value(unsigned char *buf, int len, char *name, int off,
|
|
|
int check)
|
|
|
{
|
|
|
unsigned short val;
|
|
@@ -92,21 +90,21 @@ static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
|
|
|
|
|
|
if ((buf[off + 0] != buf[off + 2]) &&
|
|
|
(buf[off + 2] != buf[off + 4])) {
|
|
|
- printf ("%s Error corrupted %s\n", __FUNCTION__, name);
|
|
|
+ printf("%s Error corrupted %s\n", __func__, name);
|
|
|
val = -1;
|
|
|
} else {
|
|
|
val = buf[off + 0] + (buf[off + 1] << 8);
|
|
|
if ((val == 0) && (check == 1))
|
|
|
val = -1;
|
|
|
}
|
|
|
- sprintf ((char *)valbuf, "%x", val);
|
|
|
- ivm_set_value (name, (char *)valbuf);
|
|
|
+ sprintf((char *)valbuf, "%x", val);
|
|
|
+ ivm_set_value(name, (char *)valbuf);
|
|
|
return val;
|
|
|
}
|
|
|
|
|
|
-#define INVENTORYBLOCKSIZE 0x100
|
|
|
-#define INVENTORYDATAADDRESS 0x21
|
|
|
-#define INVENTORYDATASIZE (INVENTORYBLOCKSIZE - INVENTORYDATAADDRESS - 3)
|
|
|
+#define INV_BLOCKSIZE 0x100
|
|
|
+#define INV_DATAADDRESS 0x21
|
|
|
+#define INVENTORYDATASIZE (INV_BLOCKSIZE - INV_DATAADDRESS - 3)
|
|
|
|
|
|
#define IVM_POS_SHORT_TEXT 0
|
|
|
#define IVM_POS_MANU_ID 1
|
|
@@ -121,19 +119,19 @@ static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
|
|
|
#define IVM_POS_HISTORY 10
|
|
|
#define IVM_POS_SYMBOL_ONLY 11
|
|
|
|
|
|
-static char convert_char (char c)
|
|
|
+static char convert_char(char c)
|
|
|
{
|
|
|
return (c < ' ' || c > '~') ? '.' : c;
|
|
|
}
|
|
|
|
|
|
-static int ivm_findinventorystring (int type,
|
|
|
+static int ivm_findinventorystring(int type,
|
|
|
unsigned char* const string,
|
|
|
unsigned long maxlen,
|
|
|
unsigned char *buf)
|
|
|
{
|
|
|
int xcode = 0;
|
|
|
unsigned long cr = 0;
|
|
|
- unsigned long addr = INVENTORYDATAADDRESS;
|
|
|
+ unsigned long addr = INV_DATAADDRESS;
|
|
|
unsigned long size = 0;
|
|
|
unsigned long nr = type;
|
|
|
int stop = 0; /* stop on semicolon */
|
|
@@ -157,8 +155,10 @@ static int ivm_findinventorystring (int type,
|
|
|
addr++;
|
|
|
}
|
|
|
|
|
|
- /* the expected number of CR was found until the end of the IVM
|
|
|
- * content --> fill string */
|
|
|
+ /*
|
|
|
+ * the expected number of CR was found until the end of the IVM
|
|
|
+ * content --> fill string
|
|
|
+ */
|
|
|
if (addr < INVENTORYDATASIZE) {
|
|
|
/* Copy the IVM string in the corresponding string */
|
|
|
for (; (buf[addr] != '\r') &&
|
|
@@ -170,64 +170,62 @@ static int ivm_findinventorystring (int type,
|
|
|
convert_char (buf[addr]));
|
|
|
}
|
|
|
|
|
|
- /* copy phase is done: check if everything is ok. If not,
|
|
|
+ /*
|
|
|
+ * copy phase is done: check if everything is ok. If not,
|
|
|
* the inventory data is most probably corrupted: tell
|
|
|
- * the world there is a problem! */
|
|
|
+ * the world there is a problem!
|
|
|
+ */
|
|
|
if (addr == INVENTORYDATASIZE) {
|
|
|
xcode = -1;
|
|
|
- printf ("Error end of string not found\n");
|
|
|
+ printf("Error end of string not found\n");
|
|
|
} else if ((size >= (maxlen - 1)) &&
|
|
|
(buf[addr] != '\r')) {
|
|
|
xcode = -1;
|
|
|
- printf ("string too long till next CR\n");
|
|
|
+ printf("string too long till next CR\n");
|
|
|
}
|
|
|
} else {
|
|
|
- /* some CR are missing...
|
|
|
- * the inventory data is most probably corrupted */
|
|
|
+ /*
|
|
|
+ * some CR are missing...
|
|
|
+ * the inventory data is most probably corrupted
|
|
|
+ */
|
|
|
xcode = -1;
|
|
|
- printf ("not enough cr found\n");
|
|
|
+ printf("not enough cr found\n");
|
|
|
}
|
|
|
return xcode;
|
|
|
}
|
|
|
|
|
|
#define GET_STRING(name, which, len) \
|
|
|
- if (ivm_findinventorystring (which, valbuf, len, buf) == 0) { \
|
|
|
- ivm_set_value (name, (char *)valbuf); \
|
|
|
+ if (ivm_findinventorystring(which, valbuf, len, buf) == 0) { \
|
|
|
+ ivm_set_value(name, (char *)valbuf); \
|
|
|
}
|
|
|
|
|
|
-static int ivm_check_crc (unsigned char *buf, int block)
|
|
|
+static int ivm_check_crc(unsigned char *buf, int block)
|
|
|
{
|
|
|
unsigned long crc;
|
|
|
unsigned long crceeprom;
|
|
|
|
|
|
- crc = ivm_calc_crc (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2);
|
|
|
+ crc = ivm_calc_crc(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2);
|
|
|
crceeprom = (buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 1] + \
|
|
|
buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2] * 256);
|
|
|
if (crc != crceeprom) {
|
|
|
if (block == 0)
|
|
|
- printf ("Error CRC Block: %d EEprom: calculated: \
|
|
|
+ printf("Error CRC Block: %d EEprom: calculated: \
|
|
|
%lx EEprom: %lx\n", block, crc, crceeprom);
|
|
|
return -1;
|
|
|
}
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-static int ivm_analyze_block2 (unsigned char *buf, int len)
|
|
|
+static int ivm_analyze_block2(unsigned char *buf, int len)
|
|
|
{
|
|
|
unsigned char valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN];
|
|
|
unsigned long count;
|
|
|
|
|
|
/* IVM_MacAddress */
|
|
|
- sprintf ((char *)valbuf, "%02X:%02X:%02X:%02X:%02X:%02X",
|
|
|
- buf[1],
|
|
|
- buf[2],
|
|
|
- buf[3],
|
|
|
- buf[4],
|
|
|
- buf[5],
|
|
|
- buf[6]);
|
|
|
- ivm_set_value ("IVM_MacAddress", (char *)valbuf);
|
|
|
- if (getenv ("ethaddr") == NULL)
|
|
|
- setenv ((char *)"ethaddr", (char *)valbuf);
|
|
|
+ sprintf((char *)valbuf, "%pM", buf);
|
|
|
+ ivm_set_value("IVM_MacAddress", (char *)valbuf);
|
|
|
+ if (getenv("ethaddr") == NULL)
|
|
|
+ setenv((char *)"ethaddr", (char *)valbuf);
|
|
|
/* IVM_MacCount */
|
|
|
count = (buf[10] << 24) +
|
|
|
(buf[11] << 16) +
|
|
@@ -235,48 +233,52 @@ static int ivm_analyze_block2 (unsigned char *buf, int len)
|
|
|
buf[13];
|
|
|
if (count == 0xffffffff)
|
|
|
count = 1;
|
|
|
- sprintf ((char *)valbuf, "%lx", count);
|
|
|
- ivm_set_value ("IVM_MacCount", (char *)valbuf);
|
|
|
+ sprintf((char *)valbuf, "%lx", count);
|
|
|
+ ivm_set_value("IVM_MacCount", (char *)valbuf);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-int ivm_analyze_eeprom (unsigned char *buf, int len)
|
|
|
+int ivm_analyze_eeprom(unsigned char *buf, int len)
|
|
|
{
|
|
|
unsigned short val;
|
|
|
unsigned char valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN];
|
|
|
unsigned char *tmp;
|
|
|
|
|
|
- if (ivm_check_crc (buf, 0) != 0)
|
|
|
+ if (ivm_check_crc(buf, 0) != 0)
|
|
|
return -1;
|
|
|
|
|
|
- ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_BoardId", 0, 1);
|
|
|
- val = ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_HWKey", 6, 1);
|
|
|
+ ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN,
|
|
|
+ "IVM_BoardId", 0, 1);
|
|
|
+ val = ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN,
|
|
|
+ "IVM_HWKey", 6, 1);
|
|
|
if (val != 0xffff) {
|
|
|
- sprintf ((char *)valbuf, "%x", ((val /100) % 10));
|
|
|
- ivm_set_value ("IVM_HWVariant", (char *)valbuf);
|
|
|
- sprintf ((char *)valbuf, "%x", (val % 100));
|
|
|
- ivm_set_value ("IVM_HWVersion", (char *)valbuf);
|
|
|
+ sprintf((char *)valbuf, "%x", ((val / 100) % 10));
|
|
|
+ ivm_set_value("IVM_HWVariant", (char *)valbuf);
|
|
|
+ sprintf((char *)valbuf, "%x", (val % 100));
|
|
|
+ ivm_set_value("IVM_HWVersion", (char *)valbuf);
|
|
|
}
|
|
|
- ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_Functions", 12, 0);
|
|
|
+ ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN,
|
|
|
+ "IVM_Functions", 12, 0);
|
|
|
|
|
|
GET_STRING("IVM_Symbol", IVM_POS_SYMBOL_ONLY, 8)
|
|
|
GET_STRING("IVM_DeviceName", IVM_POS_SHORT_TEXT, 64)
|
|
|
tmp = (unsigned char *) getenv("IVM_DeviceName");
|
|
|
if (tmp) {
|
|
|
- int len = strlen ((char *)tmp);
|
|
|
+ int len = strlen((char *)tmp);
|
|
|
int i = 0;
|
|
|
|
|
|
while (i < len) {
|
|
|
if (tmp[i] == ';') {
|
|
|
- ivm_set_value ("IVM_ShortText", (char *)&tmp[i + 1]);
|
|
|
+ ivm_set_value("IVM_ShortText",
|
|
|
+ (char *)&tmp[i + 1]);
|
|
|
break;
|
|
|
}
|
|
|
i++;
|
|
|
}
|
|
|
if (i >= len)
|
|
|
- ivm_set_value ("IVM_ShortText", NULL);
|
|
|
+ ivm_set_value("IVM_ShortText", NULL);
|
|
|
} else {
|
|
|
- ivm_set_value ("IVM_ShortText", NULL);
|
|
|
+ ivm_set_value("IVM_ShortText", NULL);
|
|
|
}
|
|
|
GET_STRING("IVM_ManufacturerID", IVM_POS_MANU_ID, 32)
|
|
|
GET_STRING("IVM_ManufacturerSerialNumber", IVM_POS_MANU_SERIAL, 20)
|
|
@@ -288,14 +290,15 @@ int ivm_analyze_eeprom (unsigned char *buf, int len)
|
|
|
GET_STRING("IVM_CustomerID", IVM_POS_CUSTOMER_ID, 32)
|
|
|
GET_STRING("IVM_CustomerProductID", IVM_POS_CUSTOMER_PROD_ID, 32)
|
|
|
|
|
|
- if (ivm_check_crc (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], 2) != 0)
|
|
|
+ if (ivm_check_crc(&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], 2) != 0)
|
|
|
return 0;
|
|
|
- ivm_analyze_block2 (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], CONFIG_SYS_IVM_EEPROM_PAGE_LEN);
|
|
|
+ ivm_analyze_block2(&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2],
|
|
|
+ CONFIG_SYS_IVM_EEPROM_PAGE_LEN);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-int ivm_read_eeprom (void)
|
|
|
+int ivm_read_eeprom(void)
|
|
|
{
|
|
|
#if defined(CONFIG_I2C_MUX)
|
|
|
I2C_MUX_DEVICE *dev = NULL;
|
|
@@ -303,33 +306,36 @@ int ivm_read_eeprom (void)
|
|
|
uchar i2c_buffer[CONFIG_SYS_IVM_EEPROM_MAX_LEN];
|
|
|
uchar *buf;
|
|
|
unsigned dev_addr = CONFIG_SYS_IVM_EEPROM_ADR;
|
|
|
+ int ret;
|
|
|
|
|
|
#if defined(CONFIG_I2C_MUX)
|
|
|
/* First init the Bus, select the Bus */
|
|
|
#if defined(CONFIG_SYS_I2C_IVM_BUS)
|
|
|
- dev = i2c_mux_ident_muxstring ((uchar *)CONFIG_SYS_I2C_IVM_BUS);
|
|
|
+ dev = i2c_mux_ident_muxstring((uchar *)CONFIG_SYS_I2C_IVM_BUS);
|
|
|
#else
|
|
|
- buf = (unsigned char *) getenv ("EEprom_ivm");
|
|
|
+ buf = (unsigned char *) getenv("EEprom_ivm");
|
|
|
if (buf != NULL)
|
|
|
- dev = i2c_mux_ident_muxstring (buf);
|
|
|
+ dev = i2c_mux_ident_muxstring(buf);
|
|
|
#endif
|
|
|
if (dev == NULL) {
|
|
|
- printf ("Error couldnt add Bus for IVM\n");
|
|
|
+ printf("Error couldnt add Bus for IVM\n");
|
|
|
return -1;
|
|
|
}
|
|
|
- i2c_set_bus_num (dev->busid);
|
|
|
+ i2c_set_bus_num(dev->busid);
|
|
|
#endif
|
|
|
|
|
|
- buf = (unsigned char *) getenv ("EEprom_ivm_addr");
|
|
|
+ buf = (unsigned char *) getenv("EEprom_ivm_addr");
|
|
|
if (buf != NULL)
|
|
|
- dev_addr = simple_strtoul ((char *)buf, NULL, 16);
|
|
|
+ dev_addr = simple_strtoul((char *)buf, NULL, 16);
|
|
|
|
|
|
- if (i2c_read(dev_addr, 0, 1, i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN) != 0) {
|
|
|
+ ret = i2c_read(dev_addr, 0, 1, i2c_buffer,
|
|
|
+ CONFIG_SYS_IVM_EEPROM_MAX_LEN);
|
|
|
+ if (ret != 0) {
|
|
|
printf ("Error reading EEprom\n");
|
|
|
return -2;
|
|
|
}
|
|
|
|
|
|
- return ivm_analyze_eeprom (i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
|
|
|
+ return ivm_analyze_eeprom(i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
|
|
|
}
|
|
|
|
|
|
#if defined(CONFIG_SYS_I2C_INIT_BOARD)
|
|
@@ -339,145 +345,117 @@ int ivm_read_eeprom (void)
|
|
|
#if defined(CONFIG_MGCOGE)
|
|
|
#define SDA_MASK 0x00010000
|
|
|
#define SCL_MASK 0x00020000
|
|
|
-static void set_pin (int state, unsigned long mask)
|
|
|
+static void set_pin(int state, unsigned long mask)
|
|
|
{
|
|
|
- volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
|
|
|
+ ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
|
|
|
|
|
|
if (state)
|
|
|
- iop->pdat |= (mask);
|
|
|
+ setbits_be32(&iop->pdat, mask);
|
|
|
else
|
|
|
- iop->pdat &= ~(mask);
|
|
|
+ clrbits_be32(&iop->pdat, mask);
|
|
|
|
|
|
- iop->pdir |= (mask);
|
|
|
+ setbits_be32(&iop->pdir, mask);
|
|
|
}
|
|
|
|
|
|
-static int get_pin (unsigned long mask)
|
|
|
+static int get_pin(unsigned long mask)
|
|
|
{
|
|
|
- volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
|
|
|
+ ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
|
|
|
|
|
|
- iop->pdir &= ~(mask);
|
|
|
- return (0 != (iop->pdat & (mask)));
|
|
|
+ clrbits_be32(&iop->pdir, mask);
|
|
|
+ return 0 != (in_be32(&iop->pdat) & mask);
|
|
|
}
|
|
|
|
|
|
-static void set_sda (int state)
|
|
|
+static void set_sda(int state)
|
|
|
{
|
|
|
- set_pin (state, SDA_MASK);
|
|
|
+ set_pin(state, SDA_MASK);
|
|
|
}
|
|
|
|
|
|
-static void set_scl (int state)
|
|
|
+static void set_scl(int state)
|
|
|
{
|
|
|
- set_pin (state, SCL_MASK);
|
|
|
+ set_pin(state, SCL_MASK);
|
|
|
}
|
|
|
|
|
|
-static int get_sda (void)
|
|
|
+static int get_sda(void)
|
|
|
{
|
|
|
- return get_pin (SDA_MASK);
|
|
|
+ return get_pin(SDA_MASK);
|
|
|
}
|
|
|
|
|
|
-static int get_scl (void)
|
|
|
+static int get_scl(void)
|
|
|
{
|
|
|
- return get_pin (SCL_MASK);
|
|
|
+ return get_pin(SCL_MASK);
|
|
|
}
|
|
|
|
|
|
#if defined(CONFIG_HARD_I2C)
|
|
|
-static void setports (int gpio)
|
|
|
+static void setports(int gpio)
|
|
|
{
|
|
|
- volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
|
|
|
+ ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
|
|
|
|
|
|
if (gpio) {
|
|
|
- iop->ppar &= ~(SDA_MASK | SCL_MASK);
|
|
|
- iop->podr &= ~(SDA_MASK | SCL_MASK);
|
|
|
+ clrbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK));
|
|
|
+ clrbits_be32(&iop->podr, (SDA_MASK | SCL_MASK));
|
|
|
} else {
|
|
|
- iop->ppar |= (SDA_MASK | SCL_MASK);
|
|
|
- iop->pdir &= ~(SDA_MASK | SCL_MASK);
|
|
|
- iop->podr |= (SDA_MASK | SCL_MASK);
|
|
|
+ setbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK));
|
|
|
+ clrbits_be32(&iop->pdir, (SDA_MASK | SCL_MASK));
|
|
|
+ setbits_be32(&iop->podr, (SDA_MASK | SCL_MASK));
|
|
|
}
|
|
|
}
|
|
|
#endif
|
|
|
#endif
|
|
|
|
|
|
-#if defined(CONFIG_KM8XX)
|
|
|
-static void set_sda (int state)
|
|
|
-{
|
|
|
- I2C_SDA(state);
|
|
|
-}
|
|
|
-
|
|
|
-static void set_scl (int state)
|
|
|
-{
|
|
|
- I2C_SCL(state);
|
|
|
-}
|
|
|
-
|
|
|
-static int get_sda (void)
|
|
|
-{
|
|
|
- return I2C_READ;
|
|
|
-}
|
|
|
-
|
|
|
-static int get_scl (void)
|
|
|
-{
|
|
|
- int val;
|
|
|
-
|
|
|
- *(unsigned short *)(I2C_BASE_DIR) &= ~SCL_CONF;
|
|
|
- udelay (1);
|
|
|
- val = *(unsigned char *)(I2C_BASE_PORT);
|
|
|
-
|
|
|
- return ((val & SCL_BIT) == SCL_BIT);
|
|
|
-}
|
|
|
-#endif
|
|
|
-
|
|
|
#if !defined(CONFIG_KMETER1)
|
|
|
-static void writeStartSeq (void)
|
|
|
+static void writeStartSeq(void)
|
|
|
{
|
|
|
- set_sda (1);
|
|
|
- udelay (DELAY_HALF_PERIOD);
|
|
|
- set_scl (1);
|
|
|
- udelay (DELAY_HALF_PERIOD);
|
|
|
- set_sda (0);
|
|
|
- udelay (DELAY_HALF_PERIOD);
|
|
|
- set_scl (0);
|
|
|
- udelay (DELAY_HALF_PERIOD);
|
|
|
+ set_sda(1);
|
|
|
+ udelay(DELAY_HALF_PERIOD);
|
|
|
+ set_scl(1);
|
|
|
+ udelay(DELAY_HALF_PERIOD);
|
|
|
+ set_sda(0);
|
|
|
+ udelay(DELAY_HALF_PERIOD);
|
|
|
+ set_scl(0);
|
|
|
+ udelay(DELAY_HALF_PERIOD);
|
|
|
}
|
|
|
|
|
|
-/* I2C is a synchronous protocol and resets of the processor in the middle
|
|
|
- of an access can block the I2C Bus until a powerdown of the full unit is
|
|
|
- done. This function toggles the SCL until the SCL and SCA line are
|
|
|
- released, but max. 16 times, after this a I2C start-sequence is sent.
|
|
|
- This I2C Deblocking mechanism was developed by Keymile in association
|
|
|
- with Anatech and Atmel in 1998.
|
|
|
+/*
|
|
|
+ * I2C is a synchronous protocol and resets of the processor in the middle
|
|
|
+ * of an access can block the I2C Bus until a powerdown of the full unit is
|
|
|
+ * done. This function toggles the SCL until the SCL and SCA line are
|
|
|
+ * released, but max. 16 times, after this a I2C start-sequence is sent.
|
|
|
+ * This I2C Deblocking mechanism was developed by Keymile in association
|
|
|
+ * with Anatech and Atmel in 1998.
|
|
|
*/
|
|
|
-static int i2c_make_abort (void)
|
|
|
+static int i2c_make_abort(void)
|
|
|
{
|
|
|
int scl_state = 0;
|
|
|
int sda_state = 0;
|
|
|
int i = 0;
|
|
|
int ret = 0;
|
|
|
|
|
|
- if (!get_sda ()) {
|
|
|
+ if (!get_sda()) {
|
|
|
ret = -1;
|
|
|
while (i < 16) {
|
|
|
i++;
|
|
|
- set_scl (0);
|
|
|
- udelay (DELAY_ABORT_SEQ);
|
|
|
- set_scl (1);
|
|
|
- udelay (DELAY_ABORT_SEQ);
|
|
|
- scl_state = get_scl ();
|
|
|
- sda_state = get_sda ();
|
|
|
+ set_scl(0);
|
|
|
+ udelay(DELAY_ABORT_SEQ);
|
|
|
+ set_scl(1);
|
|
|
+ udelay(DELAY_ABORT_SEQ);
|
|
|
+ scl_state = get_scl();
|
|
|
+ sda_state = get_sda();
|
|
|
if (scl_state && sda_state) {
|
|
|
ret = 0;
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
- if (ret == 0) {
|
|
|
- for (i =0; i < 5; i++) {
|
|
|
- writeStartSeq ();
|
|
|
- }
|
|
|
- }
|
|
|
- get_sda ();
|
|
|
+ if (ret == 0)
|
|
|
+ for (i = 0; i < 5; i++)
|
|
|
+ writeStartSeq();
|
|
|
+
|
|
|
+ get_sda();
|
|
|
return ret;
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
-/**
|
|
|
+/*
|
|
|
* i2c_init_board - reset i2c bus. When the board is powercycled during a
|
|
|
* bus transfer it might hang; for details see doc/I2C_Edge_Conditions.
|
|
|
*/
|
|
@@ -488,36 +466,37 @@ void i2c_init_board(void)
|
|
|
dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
|
|
|
uchar dummy;
|
|
|
|
|
|
- out_8 (&dev->cr, (I2C_CR_MSTA));
|
|
|
- out_8 (&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
|
|
|
+ out_8(&dev->cr, (I2C_CR_MSTA));
|
|
|
+ out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
|
|
|
dummy = in_8(&dev->dr);
|
|
|
dummy = in_8(&dev->dr);
|
|
|
if (dummy != 0xff) {
|
|
|
dummy = in_8(&dev->dr);
|
|
|
}
|
|
|
- out_8 (&dev->cr, (I2C_CR_MEN));
|
|
|
- out_8 (&dev->cr, 0x00);
|
|
|
- out_8 (&dev->cr, (I2C_CR_MEN));
|
|
|
-
|
|
|
+ out_8(&dev->cr, (I2C_CR_MEN));
|
|
|
+ out_8(&dev->cr, 0x00);
|
|
|
+ out_8(&dev->cr, (I2C_CR_MEN));
|
|
|
#else
|
|
|
#if defined(CONFIG_HARD_I2C) && !defined(MACH_TYPE_KM_KIRKWOOD)
|
|
|
- volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ;
|
|
|
- volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c;
|
|
|
+ immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ;
|
|
|
+ i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c;
|
|
|
|
|
|
- /* disable I2C controller first, otherwhise it thinks we want to */
|
|
|
- /* talk to the slave port... */
|
|
|
- i2c->i2c_i2mod &= ~0x01;
|
|
|
+ /*
|
|
|
+ * disable I2C controller first, otherwhise it thinks we want to
|
|
|
+ * talk to the slave port...
|
|
|
+ */
|
|
|
+ clrbits_8(&i2c->i2c_i2mod, 0x01);
|
|
|
|
|
|
/* Set the PortPins to GPIO */
|
|
|
- setports (1);
|
|
|
+ setports(1);
|
|
|
#endif
|
|
|
|
|
|
/* Now run the AbortSequence() */
|
|
|
- i2c_make_abort ();
|
|
|
+ i2c_make_abort();
|
|
|
|
|
|
#if defined(CONFIG_HARD_I2C)
|
|
|
/* Set the PortPins back to use for I2C */
|
|
|
- setports (0);
|
|
|
+ setports(0);
|
|
|
#endif
|
|
|
#endif
|
|
|
}
|
|
@@ -525,7 +504,7 @@ void i2c_init_board(void)
|
|
|
#endif
|
|
|
|
|
|
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
|
|
|
-int fdt_set_node_and_value (void *blob,
|
|
|
+int fdt_set_node_and_value(void *blob,
|
|
|
char *nodename,
|
|
|
char *regname,
|
|
|
void *var,
|
|
@@ -534,21 +513,22 @@ int fdt_set_node_and_value (void *blob,
|
|
|
int ret = 0;
|
|
|
int nodeoffset = 0;
|
|
|
|
|
|
- nodeoffset = fdt_path_offset (blob, nodename);
|
|
|
+ nodeoffset = fdt_path_offset(blob, nodename);
|
|
|
if (nodeoffset >= 0) {
|
|
|
- ret = fdt_setprop (blob, nodeoffset, regname, var,
|
|
|
+ ret = fdt_setprop(blob, nodeoffset, regname, var,
|
|
|
size);
|
|
|
if (ret < 0)
|
|
|
printf("ft_blob_update(): cannot set %s/%s "
|
|
|
"property err:%s\n", nodename, regname,
|
|
|
- fdt_strerror (ret));
|
|
|
+ fdt_strerror(ret));
|
|
|
} else {
|
|
|
printf("ft_blob_update(): cannot find %s node "
|
|
|
- "err:%s\n", nodename, fdt_strerror (nodeoffset));
|
|
|
+ "err:%s\n", nodename, fdt_strerror(nodeoffset));
|
|
|
}
|
|
|
return ret;
|
|
|
}
|
|
|
-int fdt_get_node_and_value (void *blob,
|
|
|
+
|
|
|
+int fdt_get_node_and_value(void *blob,
|
|
|
char *nodename,
|
|
|
char *propname,
|
|
|
void **var)
|
|
@@ -556,42 +536,43 @@ int fdt_get_node_and_value (void *blob,
|
|
|
int len;
|
|
|
int nodeoffset = 0;
|
|
|
|
|
|
- nodeoffset = fdt_path_offset (blob, nodename);
|
|
|
+ nodeoffset = fdt_path_offset(blob, nodename);
|
|
|
if (nodeoffset >= 0) {
|
|
|
- *var = (void *)fdt_getprop (blob, nodeoffset, propname, &len);
|
|
|
+ *var = (void *)fdt_getprop(blob, nodeoffset, propname, &len);
|
|
|
if (len == 0) {
|
|
|
/* no value */
|
|
|
- printf ("%s no value\n", __FUNCTION__);
|
|
|
+ printf("%s no value\n", __func__);
|
|
|
return -1;
|
|
|
} else if (len > 0) {
|
|
|
return len;
|
|
|
} else {
|
|
|
- printf ("libfdt fdt_getprop(): %s\n",
|
|
|
+ printf("libfdt fdt_getprop(): %s\n",
|
|
|
fdt_strerror(len));
|
|
|
return -2;
|
|
|
}
|
|
|
} else {
|
|
|
- printf("%s: cannot find %s node err:%s\n", __FUNCTION__,
|
|
|
- nodename, fdt_strerror (nodeoffset));
|
|
|
+ printf("%s: cannot find %s node err:%s\n", __func__,
|
|
|
+ nodename, fdt_strerror(nodeoffset));
|
|
|
return -3;
|
|
|
}
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
#if !defined(MACH_TYPE_KM_KIRKWOOD)
|
|
|
-int ethernet_present (void)
|
|
|
+int ethernet_present(void)
|
|
|
{
|
|
|
- return (in_8((u8 *)CONFIG_SYS_PIGGY_BASE + CONFIG_SYS_SLOT_ID_OFF) & 0x80);
|
|
|
+ struct km_bec_fpga *base = (struct km_bec_fpga *)CONFIG_SYS_PIGGY_BASE;
|
|
|
+
|
|
|
+ return in_8(&base->bprth) & PIGGY_PRESENT;
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
-int board_eth_init (bd_t *bis)
|
|
|
+int board_eth_init(bd_t *bis)
|
|
|
{
|
|
|
#ifdef CONFIG_KEYMILE_HDLC_ENET
|
|
|
- (void)keymile_hdlc_enet_initialize (bis);
|
|
|
+ (void)keymile_hdlc_enet_initialize(bis);
|
|
|
#endif
|
|
|
- if (ethernet_present ()) {
|
|
|
+ if (ethernet_present())
|
|
|
return -1;
|
|
|
- }
|
|
|
return 0;
|
|
|
}
|