diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/misc/i2c_eeprom.c | 8 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index cb8b5c04db..8037b6ee2d 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -88,6 +88,7 @@ config CROS_EC config SPL_CROS_EC bool "Enable Chrome OS EC in SPL" + depends on SPL help Enable access to the Chrome OS EC in SPL. This is a separate microcontroller typically available on a SPI bus on Chromebooks. It @@ -97,6 +98,7 @@ config SPL_CROS_EC config TPL_CROS_EC bool "Enable Chrome OS EC in TPL" + depends on TPL help Enable access to the Chrome OS EC in TPL. This is a separate microcontroller typically available on a SPI bus on Chromebooks. It diff --git a/drivers/misc/i2c_eeprom.c b/drivers/misc/i2c_eeprom.c index f25d054007..8f2349ad5a 100644 --- a/drivers/misc/i2c_eeprom.c +++ b/drivers/misc/i2c_eeprom.c @@ -84,6 +84,14 @@ static int i2c_eeprom_std_ofdata_to_platdata(struct udevice *dev) static int i2c_eeprom_std_probe(struct udevice *dev) { + u8 test_byte; + int ret; + + /* Verify that the chip is functional */ + ret = i2c_eeprom_read(dev, 0, &test_byte, 1); + if (ret) + return -ENODEV; + return 0; } |