Robert: Are the default device tree pinmux connections for the PocketBeagle the functions named in the silkscreen labels on the bottom of the PocketBeagle?
So far this appears to be the case. Any exceptions? --- Graham == On Monday, October 30, 2017 at 11:02:56 PM UTC-5, Henner Zeller wrote: > > On 4 October 2017 at 06:52, Robert Nelson <robert...@gmail.com > <javascript:>> wrote: > > On Wed, Oct 4, 2017 at 1:28 AM, Henner Zeller <henner...@gmail.com > <javascript:>> wrote: > >> Hi, > >> Little heads-up: I just spent an hour or so to realize that the simple > 'CS' > >> (ChipSelect) printed on the silkscreen for SPI1 bus on the PocketBeagle > is > >> not CS0 as I expected, but CS1. So this is actually bus /dev/spidev2.1 > >> > >> Not sure if this was intended, but if it is, it should probably be > marked on > >> the silk-screen as CS1 to avoid future confusion; I can send a pull > request > >> for the board (in general, even CS0 should be marked as such) > >> > >> If it is _not_ intended, the am335x-pocketbeagle.dts would need to be > >> changed before capes start assuming this is CS1 (around line 389 > Jason). > > > > HI Henner, > > > > I've noticed this to while doing the overlays: > > > > SPI1 CS1 is used as CS > > > > > https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/PB-SPI1-ETH-CLICK.dts#L83 > > > > > SPI0 CS0 is used as CS > > > > > https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/PB-SPI0-ETH-CLICK.dts#L83 > > > > > I haven't looked to closely, (just let my automated script setup the > > pinmux's).. But if SPI1 (CS0) and SPI0 (CS1) is not on the header, we > > should remove them from the base tree > > Yes, this would certainly less confusing to leave out the > non-available chip-selects in the /dev/spidev* devices. > > Is there a reason why SPI0 shows up as /dev/spidev1.* and SPI1 as > /dev/spidev2.* ? This does look like an off-by-one. Is this > intentional ? > > Thanks, > Henner. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ed6ad773-0550-4e46-bb30-d5f49fd4d752%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
