linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: jiri.prchal@aksignal.cz (Jiří Prchal)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: at91: at91sam9x5: sets NPCS0 (PA14) back to GPIO
Date: Fri, 25 Jul 2014 12:06:30 +0200	[thread overview]
Message-ID: <53D22C26.4030208@aksignal.cz> (raw)
In-Reply-To: <20140725113110.70c4aa41@bbrezillon>



Dne 25.7.2014 v 11:31 Boris BREZILLON napsal(a):
> On Fri, 25 Jul 2014 11:13:51 +0200
> Ji?? Prchal <jiri.prchal@aksignal.cz> wrote:
>
>
>>>
>>> Every thing seems in place.
>>> Could you enable CONFIG_DEBUG_PINCTRL and grep on "enable pin" ?
>> / # dmesg | grep "enable pin"
>> [    0.968750] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 101 as GPIO
>> [    0.968750] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 101 as PIOD5 0x20
>> [    0.968750] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 100 as GPIO
>> [    0.968750] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 100 as PIOD4 0x10
>> [    1.238281] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 23 as GPIO
>> [    1.238281] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 23 as PIOA23 0x800000
>> [    1.238281] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 22 as GPIO
>> [    1.238281] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 22 as PIOA22 0x400000
>> [    1.242187] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 93 as GPIO
>> [    1.242187] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 93 as PIOC29 0x20000000
>> [    1.246093] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 14 as GPIO
>> [    1.246093] pinctrl-at91 ahb:apb:pinctrl at fffff400: enable pin 14 as PIOA14 0x4000
>
>
> Okay, this cleary shows that PA14 pin is muxed as a GPIO (or at least
> the driver think it is).
>
>
> Could you launch these commands (you'll need the devmem tool) and
> paste the results ?
>
> #devmem 0xfffff408
> #devmem 0xfffff418
> #devmem 0xfffff438
> #devmem 0xfffff43c
> #devmem 0xfffff458
> #devmem 0xfffff468
> #devmem 0xfffff470
> #devmem 0xfffff474
> #devmem 0xfffff498
>
/ # devmem 0xfffff408
0xF0E04018
/ # devmem 0xfffff418
0xE0C04000
/ # devmem 0xfffff438
0x00C04000
/ # devmem 0xfffff43c
0x13FFD7FB
/ # devmem 0xfffff458
0x00000000
/ # devmem 0xfffff468
0xFF223B4E
/ # devmem 0xfffff470
0x0F000000
/ # devmem 0xfffff474
0x00000000
/ # devmem 0xfffff498
0xFFFFFFFF

I get thought if is possible that in time of probe fm25 (it's first) is not configured PA14 (it 's last)?

  reply	other threads:[~2014-07-25 10:06 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-11 10:22 [PATCH] ARM: at91: at91sam9x5: add clocks for usb device Bo Shen
2014-07-11 10:47 ` Alexandre Belloni
2014-07-11 10:55   ` Jiří Prchal
2014-07-24 13:38 ` [PATCH] ARM: at91: at91sam9x5: sets NPCS0 (PA14) back to GPIO Jiří Prchal
2014-07-24 14:26   ` Boris BREZILLON
2014-07-24 15:06     ` Jiří Prchal
2014-07-24 15:58       ` Boris BREZILLON
2014-07-25  6:14         ` Jiří Prchal
2014-07-25  7:53           ` Boris BREZILLON
2014-07-25  8:27             ` Jiří Prchal
2014-07-25  8:45               ` Boris BREZILLON
2014-07-25  8:54                 ` Jiří Prchal
2014-07-25  9:01                   ` Boris BREZILLON
2014-07-25  9:13                     ` Jiří Prchal
2014-07-25  9:31                       ` Boris BREZILLON
2014-07-25 10:06                         ` Jiří Prchal [this message]
2014-07-25 10:18                           ` Boris BREZILLON
2014-07-25 10:32                             ` Jiří Prchal
2014-07-25 11:34                               ` Boris BREZILLON
2014-07-25  8:33             ` Jiří Prchal
2014-07-25  8:30           ` Alexandre Belloni
2014-07-25  8:36             ` Boris BREZILLON
2014-07-25  8:50               ` Alexandre Belloni
2014-07-25  8:37             ` Jiří Prchal
2014-07-25  8:54               ` Alexandre Belloni
2014-07-25  8:59                 ` Jiří Prchal
2014-07-25  9:02                   ` Alexandre Belloni
2014-07-25  9:10                   ` Boris BREZILLON
2014-07-25  9:40                     ` Jiří Prchal

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=53D22C26.4030208@aksignal.cz \
    --to=jiri.prchal@aksignal.cz \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).