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    SubjectRe: [PATCH] ARM: at91: at91sam9x5: sets NPCS0 (PA14) back to GPIO


    Dne 25.7.2014 v 11:31 Boris BREZILLON napsal(a):
    > On Fri, 25 Jul 2014 11:13:51 +0200
    > Jiří 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@fffff400: enable pin 101 as GPIO
    >> [ 0.968750] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 101 as PIOD5 0x20
    >> [ 0.968750] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 100 as GPIO
    >> [ 0.968750] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 100 as PIOD4 0x10
    >> [ 1.238281] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 23 as GPIO
    >> [ 1.238281] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 23 as PIOA23 0x800000
    >> [ 1.238281] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 22 as GPIO
    >> [ 1.238281] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 22 as PIOA22 0x400000
    >> [ 1.242187] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 93 as GPIO
    >> [ 1.242187] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 93 as PIOC29 0x20000000
    >> [ 1.246093] pinctrl-at91 ahb:apb:pinctrl@fffff400: enable pin 14 as GPIO
    >> [ 1.246093] pinctrl-at91 ahb:apb:pinctrl@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)?
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