Messages in this thread | | | Date | Thu, 03 Jan 2008 12:46:23 +0100 | From | Jochen Friedrich <> | Subject | Re: [PATCHv3] powerpc: DBox2 Board Support |
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Hi David,
>> +/ { >> + model = "unknown,dbox2"; // boot wrapper fills in correct manufacturer > > Probably better just to leave model out of the dts and let the > bootwrapper add it.
Unfortunately, dtc requires a model:
$ dtc arch/powerpc/boot/dts/dbox2.dts DTC: dts->dts on file "arch/powerpc/boot/dts/dbox2.dts" ERROR: Missing "model" property in /
>> + flash@0,0 { >> + compatible = "cfi-flash"; >> + reg = <0 0 800000>; >> + bank-width = <4>; >> + device-width = <1>; >> + #address-cells = <1>; >> + #size-cells = <1>; >> + partition@0 { >> + label = "BR bootloader"; >> + reg = <0 20000>; >> + read-only; >> + }; >> + partition@20000 { >> + label = "FLFS (U-Boot)"; >> + reg = <20000 20000>; >> + }; >> + partition@40000 { >> + label = "rootfs"; >> + reg = <40000 7c0000>; >> + }; >> + ovpartition@20000 { > > Uh.. I really don't know what the MTD driver will handle these > overlapping partitions. I suspect it will not be pretty... > >> + label = "Flash without bootloader"; >> + reg = <20000 7e0000>; >> + }; >> + ovpartition@0 { >> + label = "Complete Flash"; >> + reg = <0 800000>; >> + read-only; >> + }; >> + }; >> + };
MTD handles this correctly. dbox2 uses "Flash without bootloader" for flashing image updates and "Complete Flash" for creating a backup of everything. OpenWRT also uses overlapping partitions BTW (and also for flashing updates).
Thanks, Jochen
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