static int __maybe_unused ti_i2c_eeprom_get(int bus_addr, int dev_addr,
u32 header, u32 size, uint8_t *ep)
{
u32 byte, hdr_read;
int rc;
gpi2c_init();
rc = ti_i2c_eeprom_init(bus_addr, dev_addr);
if (rc)
return rc;
/*
* Read the header first then only read the other contents.
*/
byte = 2;
rc = ti_i2c_set_alen(bus_addr, dev_addr, byte);
if (rc)
return rc;
rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read, 4);
if (rc)
return rc;
/* Corrupted data??? */
if (hdr_read != header) {
rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read, 4);
/*
* read the eeprom header using i2c again, but use only a
* 1 byte address (some legacy boards need this..)
*/
byte = 1;
if (rc) {
rc = ti_i2c_set_alen(bus_addr, dev_addr, byte);
if (rc)
return rc;
rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read,
4);
}
if (rc)
return rc;
}
if (hdr_read != header)
return -1;
rc = i2c_read(dev_addr, 0x0, byte, ep, size);
if (rc)
return rc;
return 0;
}
int __maybe_unused ti_i2c_eeprom_am_get(int bus_addr, int dev_addr,
struct ti_am_eeprom **epp)
{
int rc;
struct ti_am_eeprom *ep;
if (!epp)
return -1;
ep = TI_AM_EEPROM_DATA;
if (ep->header == TI_EEPROM_HEADER_MAGIC)
goto already_read;
/* Initialize with a known bad marker for i2c fails.. */
ep->header = 0xADEAD12C;
gpi2c_init();
rc = ti_i2c_eeprom_init(bus_addr, dev_addr);
if (rc)
return rc;
rc = i2c_read(dev_addr, 0x0, 2, (uint8_t *)ep, sizeof(*ep));
if (rc)
return rc;
/* Corrupted data??? */
if (ep->header != TI_EEPROM_HEADER_MAGIC) {
rc = i2c_read(dev_addr, 0x0, 2, (uint8_t *)ep, sizeof(*ep));
/*
* read the eeprom using i2c again, but use only a 1 byte
* address (some legacy boards need this..)
*/
if (rc)
rc = i2c_read(dev_addr, 0x0, 1, (uint8_t *)ep,
sizeof(*ep));
if (rc)
return rc;
}
#ifdef CONFIG_BOARD_SOM_PH8800
strcpy(ep->name, "SOM-PH88");
#endif
#ifdef CONFIG_BOARD_SOM_PH8700
strcpy(ep->name, "SOM-PH87");
#endif
#ifdef CONFIG_BOARD_SBC_EC8800
strcpy(ep->name, "SBC-EC88");
#endif
if (ep->header != TI_EEPROM_HEADER_MAGIC){
/*
* strcpy(ep->name, "SOM-PH8700");
* ep->header = TI_EEPROM_HEADER_MAGIC;
*
* Temporary configuration, because PH8700 eeprom is empty now;
* If the eeprom written content in the future ,please delete them;
*/
//strcpy(ep->name, "SOM-PH8700");
#if defined CONFIG_BOARD_SOM_PH8800 || defined CONFIG_BOARD_SOM_PH8700 || defined CONFIG_BOARD_SBC_EC8800
ep->header = TI_EEPROM_HEADER_MAGIC;
#endif
/*return -1;*/
}
already_read:
*epp = ep;
return 0;
}