PROCESSOR-SDK-J7200: uboot pinctrl and gpio issue

Nikhil k

Intellectual 300 points

Part Number: PROCESSOR-SDK-J7200
Other Parts Discussed in Thread: DRA821

Tool/software:

Hi Team,

We are working on DRA821 CPU with Linux 09.02 SDK, I'm facing below mentioned pinctrl error prints in uboot

Error related to wkup_i2c0

i2c_omap i2c@42120000: pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19

i have configured eeprom under wkup_i2c0 during uboot boot observed above mentioned errors, with i2c dev and i2c probe device seems detect properly, but i'm not able to read/detect eeprom in source

=> i2c dev 0
Setting bus to 0
=> i2c probe
Valid chip addresses: 0A 12 48 49 4A 4B 54 55

Aslo when i tried to toggle gpios in uboot using gpio set/toggle command facing the below mentioned issue and gpio is not toggling, here mux mode and direction register values are proper, i have verified

gpio set gpio@42110000_6
gpio: pin gpio@42110000_6 (gpio 6) value is 1
Warning: value of pin is still 0

Regards,
Nikhil K

over 1 year ago

0 Praveen Rao over 1 year ago

TI__Mastermind 48823 points

Hello,

Our expert handling this topic is based in India timezone and they have regional holiday . Hence expect couple of day delay in response. Thanks.

0 Keerthy J over 1 year ago in reply to Praveen Rao

TI__Guru**** 166260 points

Nikhil,

Please set the appropriate pin mux register to 0x40007.

Then try to toggle gpio. The pin mux register must be configured with the above value for the gpio to physically Toggle.

Best regards,

Keerthy

0 Nikhil k over 1 year ago in reply to Keerthy J

Intellectual 300 points

Hi Keerthy,

Thanks for the reply,

The register values are proper and observed gpio is toggling, but still this print is there

"Warning: value of pin is still 0"
Seems like gpio reading side issue is there.

Regards,

Nikhil K

0 Keerthy J over 1 year ago in reply to Nikhil k

TI__Guru**** 166260 points

Hi Nikhil,

Okay that is indeed strange. We will look into this at lower priority as you are able to physically toggle the pin right?
Can we close this?

- Keerthy

0 Nikhil k over 1 year ago in reply to Keerthy J

Intellectual 300 points

Hi Keerthy,

Is there any possibility that this will get updated on upcoming bsp releases? if yes, i think we can close this issue..

Regards,

Nikhil K

0 Keerthy J over 1 year ago in reply to Nikhil k

TI__Guru**** 166260 points

Hi Nikhil,

10.0 is already out. So mostly 10.1 or 10.2 but not sure as we need to prioritize this. Surely will feed this to SDK team.

- Keerthy

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PROCESSOR-SDK-J7200: uboot pinctrl and gpio issue