Messages in this thread | | | Date | Fri, 25 Jul 2014 12:06:30 +0200 | From | Jiří Prchal <> | Subject | Re: [PATCH] ARM: at91: at91sam9x5: sets NPCS0 (PA14) back to GPIO |
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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)? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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