On Fri, Oct 19, 2018 at 1:35 PM TJF <[email protected]> wrote:
>
>
>
> Am Freitag, 19. Oktober 2018 20:15:54 UTC+2 schrieb RobertCNelson:
>>
>> On Fri, Oct 19, 2018 at 12:59 PM TJF <[email protected]> wrote:
>> >
>> > Thanks for the fast response.
>> >
>> > No changes for PocketBeagle.dts or BeagleBone_Blue.dts? (P9_11 = P2_05 = 
>> > DSM2_3)
>>
>> Not yet, still figuring out:
>
>
> Sorry, I wont be impatient.
>
>>
>> > And P9_42 (GPIO3_18) is mode 0x24 after boot (not 0x27).
>>
>> We want "gpio" by default right? 0x24 is spi_clk..
>
>
> 0x24 is 'mmc0_sdwp' (mode 4 on ball 0x68, ZCZ ball B12).

Ah right, i ripped that one out of the kernel..

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/am335x-bone-common.dtsi?h=v4.19-rc8&id=5d1c115241e4aa0034ddf44693c6bd2e89e10831

u-boot must still be setting it..

having a random shared pin tied to mmc's write protect is only asking
for trouble..  gpio default mode best, i need to rip that pin out of
u-boot..

https://github.com/u-boot/u-boot/blob/master/board/ti/am335x/mux.c#L61-L81


>> > And i2c2 (P9_19, P9_20) are mode 0x33 after boot (not 0x3B).
>>
>> I think 0x3B is 0x33 + slew control on, re-reading the am335x manual..

This was just pull-up disabled, fixed:

https://github.com/beagleboard/bb.org-overlays/commit/9ccfba49c83b9e2ddf8d46eae7c517bd4ed36d9e

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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