Le mercredi 06 mai 2015 à 08:26 -0500, Rob Herring a écrit : > On Tue, Apr 28, 2015 at 2:29 AM, Paul Kocialkowski <contact@xxxxxxxx> wrote: > > Open firmware is already using the serial-number property for passing the > > device's serial number from the bootloader to the kernel. In addition, lshw > > already has support for scanning this property. > > > > The serial number is a string that somewhat represents the device's serial > > number. It might come from some form of storage (e.g. an eeprom) and be > > programmed at factory-time by the manufacturer or come from identification > > bits available in e.g. the SoC (note that the soc_id property in the SoC bus > > should hold a full account of those bits). > > > > The serial number is taken as-is from the bootloader, so it is up to the > > bootloader to define where the serial number comes from and what length it > > should be. Some use cases for the serial number require it to have a maximum > > length (e.g. for USB serial number) and some other cases imply more restrictions > > on what the serial number should look like (e.g. in Android, the ro.serialno > > property is usually a 16-bytes (plus one null byte) representation of a 64 bit > > number). > > > > Signed-off-by: Paul Kocialkowski <contact@xxxxxxxx> > > Acked-by: Rob Herring <robh@xxxxxxxxxx> > > What Russell was referring to for submitting is his patch tracker: > > http://www.arm.linux.org.uk/developer/patches/ Thanks for the hint, that's done now. > > --- > > Documentation/devicetree/booting-without-of.txt | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt > > index 7768518..95fc385 100644 > > --- a/Documentation/devicetree/booting-without-of.txt > > +++ b/Documentation/devicetree/booting-without-of.txt > > @@ -828,6 +828,10 @@ address which can extend beyond that limit. > > name may clash with standard defined ones, you prefix them with your > > vendor name and a comma. > > > > + Additional properties for the root node: > > + > > + - serial-number : a string representing the device's serial number > > + > > b) The /cpus node > > > > This node is the parent of all individual CPU nodes. It doesn't > > -- > > 1.9.1 > >
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