Jump to content

XU4 gpio device line names


sgjava

Recommended Posts

OK, so while documenting the Armbian patch process I needed something actual to patch. I added gpio-line-names to the device tree, so now all lines are defined. Once I finish the documentation I'll PR this patch. No more guessing what physical pin is! At some point it might make sense to put in jumper and physical pin #.

 

Spoiler

gpioinfo
gpiochip0 - 8 lines:
	line   0:     "GPY7.0"       unused   input  active-high 
	line   1:     "GPY7.1"       unused   input  active-high 
	line   2:     "GPY7.2"       unused   input  active-high 
	line   3:     "GPY7.3"       unused   input  active-high 
	line   4:     "GPY7.4"       unused   input  active-high 
	line   5:     "GPY7.5"       unused   input  active-high 
	line   6:     "GPY7.6"       unused   input  active-high 
	line   7:     "GPY7.7"       unused   input  active-high 
gpiochip1 - 8 lines:
	line   0:     "GPX0.0"       unused   input  active-high 
	line   1:     "GPX0.1"       unused   input  active-high 
	line   2:     "GPX0.2"       unused   input  active-high 
	line   3:     "GPX0.3"  "power key"   input   active-low [used]
	line   4:     "GPX0.4"  "interrupt"   input  active-high [used]
	line   5:     "GPX0.5"       unused   input  active-high 
	line   6:     "GPX0.6"       unused   input  active-high 
	line   7:     "GPX0.7"       unused   input  active-high 
gpiochip10 - 8 lines:
	line   0:     "GPD1.0"      "reset"  output   active-low [used]
	line   1:     "GPD1.1"       unused   input  active-high 
	line   2:     "GPD1.2"       unused   input  active-high 
	line   3:     "GPD1.3"       unused   input  active-high 
	line   4:     "GPD1.4"       unused   input  active-high 
	line   5:     "GPD1.5"       unused   input  active-high 
	line   6:     "GPD1.6"       unused   input  active-high 
	line   7:     "GPD1.7"       unused   input  active-high 
gpiochip11 - 6 lines:
	line   0:     "GPY0.0"       unused   input  active-high 
	line   1:     "GPY0.1"       unused   input  active-high 
	line   2:     "GPY0.2"       unused   input  active-high 
	line   3:     "GPY0.3"       unused   input  active-high 
	line   4:     "GPY0.4"       unused   input  active-high 
	line   5:     "GPY0.5"       unused   input  active-high 
gpiochip12 - 4 lines:
	line   0:     "GPY1.0"       unused   input  active-high 
	line   1:     "GPY1.1"       unused   input  active-high 
	line   2:     "GPY1.2"       unused   input  active-high 
	line   3:     "GPY1.3"       unused   input  active-high 
gpiochip13 - 6 lines:
	line   0:     "GPY2.0"       unused   input  active-high 
	line   1:     "GPY2.1"       unused   input  active-high 
	line   2:     "GPY2.2"       unused   input  active-high 
	line   3:     "GPY2.3"       unused   input  active-high 
	line   4:     "GPY2.4"       unused   input  active-high 
	line   5:     "GPY2.5"       unused   input  active-high 
gpiochip14 - 8 lines:
	line   0:     "GPY3.0"       unused   input  active-high 
	line   1:     "GPY3.1"       unused   input  active-high 
	line   2:     "GPY3.2"       unused   input  active-high 
	line   3:     "GPY3.3"       unused   input  active-high 
	line   4:     "GPY3.4"       unused   input  active-high 
	line   5:     "GPY3.5"       unused   input  active-high 
	line   6:     "GPY3.6"       unused   input  active-high 
	line   7:     "GPY3.7"       unused   input  active-high 
gpiochip15 - 8 lines:
	line   0:     "GPY4.0"       unused   input  active-high 
	line   1:     "GPY4.1"       unused   input  active-high 
	line   2:     "GPY4.2"       unused   input  active-high 
	line   3:     "GPY4.3"       unused   input  active-high 
	line   4:     "GPY4.4"       unused   input  active-high 
	line   5:     "GPY4.5"       unused   input  active-high 
	line   6:     "GPY4.6"       unused   input  active-high 
	line   7:     "GPY4.7"       unused   input  active-high 
gpiochip16 - 8 lines:
	line   0:     "GPY5.0"       unused   input  active-high 
	line   1:     "GPY5.1"       unused   input  active-high 
	line   2:     "GPY5.2"       unused   input  active-high 
	line   3:     "GPY5.3"       unused   input  active-high 
	line   4:     "GPY5.4"       unused   input  active-high 
	line   5:     "GPY5.5"       unused   input  active-high 
	line   6:     "GPY5.6"       unused   input  active-high 
	line   7:     "GPY5.7"       unused   input  active-high 
gpiochip17 - 8 lines:
	line   0:     "GPY6.0"       unused   input  active-high 
	line   1:     "GPY6.1"       unused   input  active-high 
	line   2:     "GPY6.2"       unused   input  active-high 
	line   3:     "GPY6.3"       unused   input  active-high 
	line   4:     "GPY6.4"       unused   input  active-high 
	line   5:     "GPY6.5"       unused   input  active-high 
	line   6:     "GPY6.6"       unused   input  active-high 
	line   7:     "GPY6.7"       unused   input  active-high 
gpiochip18 - 8 lines:
	line   0:     "GPE0.0"       unused   input  active-high 
	line   1:     "GPE0.1"       unused   input  active-high 
	line   2:     "GPE0.2"       unused   input  active-high 
	line   3:     "GPE0.3"       unused   input  active-high 
	line   4:     "GPE0.4"       unused   input  active-high 
	line   5:     "GPE0.5"       unused   input  active-high 
	line   6:     "GPE0.6"       unused   input  active-high 
	line   7:     "GPE0.7"       unused   input  active-high 
gpiochip19 - 2 lines:
	line   0:     "GPE1.0"       unused   input  active-high 
	line   1:     "GPE1.1"       unused   input  active-high 
gpiochip2 - 8 lines:
	line   0:     "GPX1.0"       unused   input  active-high 
	line   1:     "GPX1.1"       unused   input  active-high 
	line   2:     "GPX1.2"       unused   input  active-high 
	line   3:     "GPX1.3"       unused   input  active-high 
	line   4:     "GPX1.4"       unused   input  active-high 
	line   5:     "GPX1.5"       unused   input  active-high 
	line   6:     "GPX1.6"       unused   input  active-high 
	line   7:     "GPX1.7"       unused   input  active-high 
gpiochip20 - 6 lines:
	line   0:     "GPF0.0"       unused   input  active-high 
	line   1:     "GPF0.1"       unused   input  active-high 
	line   2:     "GPF0.2"       unused   input  active-high 
	line   3:     "GPF0.3"       unused   input  active-high 
	line   4:     "GPF0.4"       unused   input  active-high 
	line   5:     "GPF0.5"       unused   input  active-high 
gpiochip21 - 8 lines:
	line   0:     "GPF1.0"       unused   input  active-high 
	line   1:     "GPF1.1"       unused   input  active-high 
	line   2:     "GPF1.2"       unused   input  active-high 
	line   3:     "GPF1.3"       unused   input  active-high 
	line   4:     "GPF1.4"       unused   input  active-high 
	line   5:     "GPF1.5"       unused   input  active-high 
	line   6:     "GPF1.6"       unused   input  active-high 
	line   7:     "GPF1.7"       unused   input  active-high 
gpiochip22 - 8 lines:
	line   0:     "GPG0.0"       unused   input  active-high 
	line   1:     "GPG0.1"       unused   input  active-high 
	line   2:     "GPG0.2"       unused   input  active-high 
	line   3:     "GPG0.3"       unused   input  active-high 
	line   4:     "GPG0.4"       unused   input  active-high 
	line   5:     "GPG0.5"       unused   input  active-high 
	line   6:     "GPG0.6"       unused   input  active-high 
	line   7:     "GPG0.7"       unused   input  active-high 
gpiochip23 - 8 lines:
	line   0:     "GPG1.0"       unused   input  active-high 
	line   1:     "GPG1.1"       unused   input  active-high 
	line   2:     "GPG1.2"       unused   input  active-high 
	line   3:     "GPG1.3"       unused   input  active-high 
	line   4:     "GPG1.4"       unused   input  active-high 
	line   5:     "GPG1.5"       unused   input  active-high 
	line   6:     "GPG1.6"       unused   input  active-high 
	line   7:     "GPG1.7"       unused   input  active-high 
gpiochip24 - 2 lines:
	line   0:     "GPG2.0"       unused   input  active-high 
	line   1:     "GPG2.1"       unused   input  active-high 
gpiochip25 - 4 lines:
	line   0:     "GPJ4.0"       unused   input  active-high 
	line   1:     "GPJ4.1"       unused   input  active-high 
	line   2:     "GPJ4.2"       unused   input  active-high 
	line   3:     "GPJ4.3"       unused   input  active-high 
gpiochip26 - 8 lines:
	line   0:     "GPA0.0"       unused   input  active-high 
	line   1:     "GPA0.1"       unused   input  active-high 
	line   2:     "GPA0.2"       unused   input  active-high 
	line   3:     "GPA0.3"       unused   input  active-high 
	line   4:     "GPA0.4"       unused   input  active-high 
	line   5:     "GPA0.5"       unused   input  active-high 
	line   6:     "GPA0.6"       unused   input  active-high 
	line   7:     "GPA0.7"       unused   input  active-high 
gpiochip27 - 6 lines:
	line   0:     "GPA1.0"       unused   input  active-high 
	line   1:     "GPA1.1"       unused   input  active-high 
	line   2:     "GPA1.2"       unused   input  active-high 
	line   3:     "GPA1.3"       unused   input  active-high 
	line   4:     "GPA1.4"       unused   input  active-high 
	line   5:     "GPA1.5"       unused   input  active-high 
gpiochip28 - 8 lines:
	line   0:     "GPA2.0"       unused   input  active-high 
	line   1:     "GPA2.1"       unused   input  active-high 
	line   2:     "GPA2.2"       unused   input  active-high 
	line   3:     "GPA2.3"       unused   input  active-high 
	line   4:     "GPA2.4"       unused   input  active-high 
	line   5:     "GPA2.5"       unused   input  active-high 
	line   6:     "GPA2.6"       unused   input  active-high 
	line   7:     "GPA2.7"       unused   input  active-high 
gpiochip29 - 5 lines:
	line   0:     "GPB0.0"       unused   input  active-high 
	line   1:     "GPB0.1"       unused   input  active-high 
	line   2:     "GPB0.2"       unused   input  active-high 
	line   3:     "GPB0.3"       unused   input  active-high 
	line   4:     "GPB0.4"       unused   input  active-high 
gpiochip3 - 8 lines:
	line   0:     "GPX2.0"       unused   input  active-high 
	line   1:     "GPX2.1"       unused   input  active-high 
	line   2:     "GPX2.2"       unused   input  active-high 
	line   3:     "GPX2.3"       unused   input  active-high 
	line   4:     "GPX2.4"       unused   input  active-high 
	line   5:     "GPX2.5"       unused   input  active-high 
	line   6:     "GPX2.6"       unused   input  active-high 
	line   7:     "GPX2.7"       unused   input  active-high 
gpiochip30 - 5 lines:
	line   0:     "GPB1.0"       unused   input  active-high 
	line   1:     "GPB1.1"       unused   input  active-high 
	line   2:     "GPB1.2"       unused   input  active-high 
	line   3:     "GPB1.3"       unused   input  active-high 
	line   4:     "GPB1.4"       unused   input  active-high 
gpiochip31 - 4 lines:
	line   0:     "GPB2.0"       unused   input  active-high 
	line   1:     "GPB2.1"       unused   input  active-high 
	line   2:     "GPB2.2"       unused   input  active-high 
	line   3:     "GPB2.3"       unused   input  active-high 
gpiochip32 - 8 lines:
	line   0:     "GPB3.0"       unused   input  active-high 
	line   1:     "GPB3.1"       unused   input  active-high 
	line   2:     "GPB3.2"       unused   input  active-high 
	line   3:     "GPB3.3"       unused   input  active-high 
	line   4:     "GPB3.4"       unused   input  active-high 
	line   5:     "GPB3.5"       unused   input  active-high 
	line   6:     "GPB3.6"       unused   input  active-high 
	line   7:     "GPB3.7"       unused   input  active-high 
gpiochip33 - 2 lines:
	line   0:     "GPB4.0"       unused   input  active-high 
	line   1:     "GPB4.1"       unused   input  active-high 
gpiochip34 - 8 lines:
	line   0:     "GPH0.0"       unused   input  active-high 
	line   1:     "GPH0.1"       unused   input  active-high 
	line   2:     "GPH0.2"       unused   input  active-high 
	line   3:     "GPH0.3"       unused   input  active-high 
	line   4:     "GPH0.4"       unused   input  active-high 
	line   5:     "GPH0.5"       unused   input  active-high 
	line   6:     "GPH0.6"       unused   input  active-high 
	line   7:     "GPH0.7"       unused   input  active-high 
gpiochip35 - 7 lines:
	line   0:      "GPZ.0"       unused   input  active-high 
	line   1:      "GPZ.1"       unused   input  active-high 
	line   2:      "GPZ.2"       unused   input  active-high 
	line   3:      "GPZ.3"       unused   input  active-high 
	line   4:      "GPZ.4"       unused   input  active-high 
	line   5:      "GPZ.5"       unused   input  active-high 
	line   6:      "GPZ.6"       unused   input  active-high 
gpiochip4 - 8 lines:
	line   0:     "GPX3.0"       unused   input  active-high 
	line   1:     "GPX3.1"       unused   input  active-high 
	line   2:     "GPX3.2"       unused   input  active-high 
	line   3:     "GPX3.2"       unused   input  active-high 
	line   4:     "GPX3.4"       unused   input  active-high 
	line   5:     "GPX3.5"       unused   input  active-high 
	line   6:     "GPX3.6"       unused   input  active-high 
	line   7:     "GPX3.7"        "hpd"   input  active-high [used]
gpiochip5 - 8 lines:
	line   0:     "GPC0.0"       unused   input  active-high 
	line   1:     "GPC0.1"       unused   input  active-high 
	line   2:     "GPC0.2"       unused   input  active-high 
	line   3:     "GPC0.3"       unused   input  active-high 
	line   4:     "GPC0.4"       unused   input  active-high 
	line   5:     "GPC0.5"       unused   input  active-high 
	line   6:     "GPC0.6"       unused   input  active-high 
	line   7:     "GPC0.7"       unused   input  active-high 
gpiochip6 - 8 lines:
	line   0:     "GPC1.0"       unused   input  active-high 
	line   1:     "GPC1.1"       unused   input  active-high 
	line   2:     "GPC1.2"       unused   input  active-high 
	line   3:     "GPC1.3"       unused   input  active-high 
	line   4:     "GPC1.4"       unused   input  active-high 
	line   5:     "GPC1.5"       unused   input  active-high 
	line   6:     "GPC1.6"       unused   input  active-high 
	line   7:     "GPC1.7"       unused   input  active-high 
gpiochip7 - 7 lines:
	line   0:     "GPC2.0"       unused   input  active-high 
	line   1:     "GPC2.1"       unused   input  active-high 
	line   2:     "GPC2.2"       unused   input  active-high 
	line   3:     "GPC2.3"       unused   input  active-high 
	line   4:     "GPC2.4"       unused   input  active-high 
	line   5:     "GPC2.5"       unused   input  active-high 
	line   6:     "GPC2.6"       unused   input  active-high 
gpiochip8 - 4 lines:
	line   0:     "GPC3.0"       unused   input  active-high 
	line   1:     "GPC3.1"       unused   input  active-high 
	line   2:     "GPC3.2"       unused   input  active-high 
	line   3:     "GPC3.3"       unused   input  active-high 
gpiochip9 - 2 lines:
	line   0:     "GPC4.0"       unused   input  active-high 
	line   1:     "GPC4.1"       unused   input  active-high 

 

 

 

Edited by TRS-80
put long output inside spoiler
Link to comment
Share on other sites

Cool, man!

 

Please forgive me if this out of place, as I really have no idea about any of this stuff.  However as a casual observer, those mappings look quite random and I could not discern any sort of order.  But maybe that's because they map to some underlying hardware or something else I am not understanding?  In which case, feel free to disregard this feedback.

 

In either case, thanks for your contribution!  :thumbup:  :beer:

Link to comment
Share on other sites

So if you look at the device tree you'll see pin controllers like GPA0, GPA1, etc. I'm not sure how the kernel gpio device enumerates them, but basically a chip is a pin controller and lines are the pins. The main thing is soon you'll be able to look at a pin map and know exactly which physical pin it is.

 

Also gpioinfo seems to sort by chip string instead of int, thus 2, 21, 22, etc. are all 2s :(

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

Terms of Use - Privacy Policy - Guidelines