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eeprom: Add device model based I2C support to eeprom command 

After this change the 'eeprom' command can be used with DM aware boards.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2018-11-21 23:40:43 +01:00 committed by Tom Rini
parent 8ce7f2c115
commit 0c07a9b407
1 changed files with 21 additions and 3 deletions
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24
cmd/eeprom.c
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@ -137,6 +137,23 @@ static int eeprom_rw_block(unsigned offset, uchar *addr, unsigned alen,
spi_write(addr, alen, buffer, len);
#else /* I2C */
#if defined(CONFIG_DM_I2C) && defined(CONFIG_SYS_I2C_EEPROM_BUS)
struct udevice *dev;
ret = i2c_get_chip_for_busnum(CONFIG_SYS_I2C_EEPROM_BUS, addr[0],
alen - 1, &dev);
if (ret) {
printf("%s: Cannot find udev for a bus %d\n", __func__,
CONFIG_SYS_I2C_EEPROM_BUS);
return CMD_RET_FAILURE;
}
if (read)
ret = dm_i2c_read(dev, offset, buffer, len);
else
ret = dm_i2c_write(dev, offset, buffer, len);
#else /* Non DM I2C support - will be removed */
#if defined(CONFIG_SYS_I2C_EEPROM_BUS)
i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS);
#endif
@ -145,10 +162,11 @@ static int eeprom_rw_block(unsigned offset, uchar *addr, unsigned alen,
ret = i2c_read(addr[0], offset, alen - 1, buffer, len);
else
ret = i2c_write(addr[0], offset, alen - 1, buffer, len);
if (ret)
ret = 1;
#endif
#endif /* CONFIG_DM_I2C && CONFIG_SYS_I2C_EEPROM_BUS */
if (ret)
ret = CMD_RET_FAILURE;
return ret;
}