[Arm-netbook] defining the eoma68 eeprom usage

[Arokux X]

On Mon, Nov 4, 2013 at 9:30 PM, Christopher Thomas
<christopher at firemothindustries.com> wrote:
>
>
>
> On Mon, Nov 4, 2013 at 2:05 PM, joem <joem at martindale-electric.co.uk> wrote:
>>
>> : yes.  my concerns here are that the EEPROM would be overwritten by
>> :user applications otherwise, potentially destroying the ability of CPU
>> :Cards to identify the device.
>>
>> I2C eeproms dirt cheap - have two eeproms - one user data (such as
>> calibration data
>> for instruments, keys, etc) and one for system data.
>>
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>
>
> Given the need for device-tree info, and RID, etc etc, presumably, how large
> of an EEPROM would we technically need?

Device Tree eats this much:

user$ du -h arch/arm/boot/dts/*.dtb | grep sun
12K    arch/arm/boot/dts/sun4i-a10-a1000.dtb
12K    arch/arm/boot/dts/sun4i-a10-cubieboard.dtb
12K    arch/arm/boot/dts/sun4i-a10-hackberry.dtb
12K    arch/arm/boot/dts/sun4i-a10-mini-xplus.dtb
8.0K    arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dtb
8.0K    arch/arm/boot/dts/sun5i-a13-olinuxino.dtb
8.0K    arch/arm/boot/dts/sun6i-a31-colombus.dtb
12K    arch/arm/boot/dts/sun7i-a20-cubieboard2.dtb
12K    arch/arm/boot/dts/sun7i-a20-cubietruck.dtb
12K    arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dtb



>
> The Most recent revision MEBs have a 64K EEPROM, perhaps we could split the
> single eeprom memory into two segments?
>
> --
> Christopher Thomas
> Firemoth Industries, LLC - Owner
> christopher at firemothindustries.com
> 214-458-5990
>
> _______________________________________________
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