On 08.03.24 00:03, E Shattow wrote:
On Sun, Mar 3, 2024 at 5:02 AM Heinrich Schuchardt
<heinrich.schucha...@canonical.com
<mailto:heinrich.schucha...@canonical.com>> wrote:
...
* The EEPROM is atmel,24c02 according to the vendor U-Boot.
...
The same vendor (Milk-V) U-Boot change is present on their branch for
Mars CM Lite (which despite the naming has more in common with Pine64
Star64 than Mars); However on visual inspection the silkscreen markings
are for 24c04. See: [Photo flatbed scans of Mars CM Lite 4GB rev
1.01](https://github.com/geerlingguy/sbc-reviews/issues/22#issuecomment-1872478605 <https://github.com/geerlingguy/sbc-reviews/issues/22#issuecomment-1872478605>). Can this be determined at runtime, or I must trust that this is not a wrongly marked chip?
On the Milk-V Mars there is a chip marked "24C04F 21626P" like on the
photo on the CM module from the thread above. This should be the EEPROM.
In some datasheets F is appended to mark the voltage range.
So this atmel,24c02 change seems really only be relevant if you have a
CM module on a baseboard with an RTC at 0x51.
Best regards
Heinrich
