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[U-boot] i2c probe -> no valid chip addresses

Altera_Forum
Honored Contributor II
1,750 Views

Hi All, 

 

When I run the i2c probe u-boot command, I'm receiving the following: 

 

i2c probeValid chip addresses: SOCFPGA_ARRIA5#  

 

What does it mean? Was no i2c devices detected on the i2c bus?  

 

Thank you!
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Altera_Forum
Honored Contributor II
739 Views

Already configure before run that command? 

 

http://blackfin.uclinux.org/doku.php?id=bootloaders:u-boot:i2c
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Altera_Forum
Honored Contributor II
739 Views

Yes, I've ran the following:  

 

SOCFPGA_ARRIA5# # define CONFIG_CMD_I2C 

SOCFPGA_ARRIA5# i2c probe 

Valid chip addresses: 

SOCFPGA_ARRIA5#  

 

It seems there are no valid chip selects ....  

 

What are the proposal next steps? 

 

Thank you
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Altera_Forum
Honored Contributor II
739 Views

No idea yet, by the way before this, curious did you enable the i2c driver before all this with your arria V? 

 

http://rocketboards.org/foswiki/view/documentation/preloaderubootcustomization131
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Altera_Forum
Honored Contributor II
739 Views

"did you enable the i2c driver" - are you about enabling the I2C Controller in Peripheral Pins Mux in HPS? Yes, I did so... It's enabled...

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Altera_Forum
Honored Contributor II
739 Views

sorry, out of idea here. Maybe other members can try to comment about this further.

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