Hi Martin, Eugen, > On 23/10/18 10:40, eugen.hris...@microchip.com wrote: > > > > I tried as much as possible to decouple the W1 bus from the W1 > > EEPROM memories. It is possible that we will have a different > > framework for EEPROMs that will include both 1wire and i2c eeproms, > > and then the interfacing would be pretty easy to change to. > > > > That's why I am thinking that w1 bus read should not be much > > affected if the 1w EEPROMs are unknown to U-boot > > > Yes sure that's great. > > Somewhat diverting this thread.... > > I noticed that currently "w1 read" displays the data in hex with > "%x", which means it prints just one character if in range 00-0f. > And as there is no seperator the output isn't currently useful. > > That's a trivial fix of course but it got me thinking about what do > we want to "w1 read" to do? > > A lot of other storage reading commands use "read" to mean "read to > memory" and take a destination RAM address parameter. > Eg mmc read, sf read, ... > > There are counter examples though like "mii read" or "pmic read" > which just print the output but they don't read aribitary > user defined data like an eeprom. > > So I was wondering if it would be better to modify "w1 read" to mean > "read to memory" and add a new "w1 dump" command > to do what "w1 read" currently does (as it is much more convenient > for quickly checking the eeprom contents than > having to use md). > > The type of use case I'm thinking of for "read to memory" is if > someone wants to put a device tree blob on an eeprom. >
If I may add my 2cents. I also would like to see the w1 command to load read data to memory (to be consistent with e.g. load), so we could use md.b, mw.b, etc. > What do you think? > > Regards, > > Martin > > > > >> Regards, > >> > >> Martin > >> > >> > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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