[Arm-netbook] Testing: GPIO

[Luke Kenneth Casson Leighton]

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crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68


On Wed, Feb 28, 2018 at 9:09 PM, Richard Wilbur
<richard.wilbur at gmail.com> wrote:
> After realizing that you mentioned all 8 GPIO lines were on the 20-pin
> expansion header J5 in the microdesktop case, I consulted the
> microdesktop schematic for clues.
>
> I suspect the UART and EOMA I2C pins should be left to those functions.

 yehyeh.   UART implicitly tested "if console works it's probably
good" and I2C with a bus scan, i2c-utils, if 0x51 EEPROM shows up,
it's good.

> I have added tables to the "Testing"[*] page under the "GPIO" section
> with my nominations for which pins to test and their mapping back to
> A20 register bits.

 awesome.  it'll have to be done manually for now,

> Luke, does this match your understanding of the GPIO pins to test?

 yep - GPIO_19,20,21 missing.

> Reference:
> [*]  http://rhombus-tech.net/allwinner_a10/testing

 hey that looks great!