These comments were a reply to Robert,!but threads are getting confused a bit 
for everyone especially for me.

Let me look at this more and see if I can find the pinmux pins I need in i-boot 
and the kernel. Even if they don’t exist in u-boot, they should in the kernel. 
Then I can do as Robert indicates, change the pinmux U-Boot file and dts.

If I go into any more detail, it’s going to take too much time and I’m already 
behind on this.  Robert understands the concerns and what I need. I simply need 
to pinmux pins E18 and E19.


> On Nov 1, 2017, at 1:09 PM, William Hermans <[email protected]> wrote:
> 
> 
> 
>> On Wed, Nov 1, 2017 at 11:01 AM, Tracy Smith <[email protected]> wrote:
>> Ok look this custom board is based on the BeagleBone Black. For all intense 
>> and purposes it is the BBB. The pins for the AM3358 are the same. The 
>> primary difference is no P9 expansion header. What you are suggesting below 
>> is exactly what I’m doing and why I have the questions I do because your CAN 
>> support will not work on our custom BeagleBone Black.
>> 
>> Customers will use the BBB as a reference platform and will actually have to 
>> do pinmuxing. When I do mention custom board, you do ignore me. But you 
>> shouldn’t because not all companies that use the BBB as a reference platform 
>> will use the P9 expansion and they will want to have CAN support in the 
>> kernel even without the P9 expansion header. You don’t have to use the P9 
>> and the overlay being used to support CAN0 and CAN1
>> 
>> You seem to be limiting CAN support to those using the P9 expansion header?  
>> Why is that? Does it allow for four or more CANS?  
>> 
>> Really appreciate the assistance and it has been and continues to be 
>> extremely helpful. 
>> 
>> What limitations or constraints are causing you to have to use the P9 
>> expansion header for CAN?  Knowing this help justify adding an expansion 
>> header to the design. 
>> 
>> I need to look closer at the overlay. But knowing these constraints could 
>> justify adding the P9 expansion header to our custom BBB board.
>> 
>> Thx, Tracy
> 
> First, I am not affiliated with beagleboard.org, cicuitco or any other 
> organization related directly to the beaglebone, or beagleboard products. Or 
> anyone who sells said products. I am just your average community member, 
> whose been using the beaglebone products since it's release date
> 
> Second, I never said I was ignoring anyone.
> 
> Third, you're delving into territory that myself, and most others have not 
> gone into. So if someone does say they're ignoring you, it could very well be 
> that they have not done what you're doing, and do not want to give you 
> incorrect information.
> 
> Lastly, be more verbose with your information. Just saying "wont work for us" 
> doesn't tell us what the underlying problem is, or how to help you solve your 
> issue.
> 
> So . .. tell us EXACTLY what you've done, and EXACTLY the errors your 
> experiencing. Then perhaps, if you're verbose enough, someone on this list 
> can help you.
> 

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