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Date:	Fri, 25 Jul 2014 10:54:23 +0200
From:	Jiří Prchal <>
To:	Boris BREZILLON <>
CC:	Bo Shen <>,,,,
Subject: Re: [PATCH] ARM: at91: at91sam9x5: sets NPCS0 (PA14) back to GPIO

Here it is:
cat /sys/kernel/debug/gpio
GPIOs 0-31, platform/fffff400.gpio, fffff400.gpio:
[in20] GPIOfffff400.gpio3: [gpio] set
[spi0.3] GPIOfffff400.gpio14: [gpio] set
[in19] GPIOfffff400.gpio21: [gpio] set
[spi0.1] GPIOfffff400.gpio22: [gpio] set
[spi0.0] GPIOfffff400.gpio23: [gpio] set
[in18] GPIOfffff400.gpio28: [gpio] set
[out20] GPIOfffff400.gpio29: [gpio] clear
[out18] GPIOfffff400.gpio30: [gpio] clear
[out19] GPIOfffff400.gpio31: [gpio] clear

GPIOs 32-50, platform/fffff600.gpio, fffff600.gpio:
[blue] GPIOfffff600.gpio12: [gpio] set
[gsm_on] GPIOfffff600.gpio13: [gpio] clear
[yellow] GPIOfffff600.gpio14: [gpio] clear
[gsm_rst] GPIOfffff600.gpio15: [gpio] clear
[green] GPIOfffff600.gpio16: [gpio] clear
[red] GPIOfffff600.gpio18: [gpio] clear

GPIOs 64-95, platform/fffff800.gpio, fffff800.gpio:
[in17] GPIOfffff800.gpio16: [gpio] set
[in13] GPIOfffff800.gpio18: [gpio] set
[in14] GPIOfffff800.gpio20: [gpio] set
[por] GPIOfffff800.gpio25: [gpio] clear
[out16] GPIOfffff800.gpio26: [gpio] clear
[out15] GPIOfffff800.gpio28: [gpio] clear
[spi0.2] GPIOfffff800.gpio29: [gpio] set
[out17] GPIOfffff800.gpio30: [gpio] clear

GPIOs 96-117, platform/fffffa00.gpio, fffffa00.gpio:
[nand_enable] GPIOfffffa00.gpio4: [gpio] set
[nand_rdy] GPIOfffffa00.gpio5: [gpio] set
[atmel_usba_udc] GPIOfffffa00.gpio21: [gpio] clear

Dne 25.7.2014 v 10:45 Boris BREZILLON napsal(a):
> On Fri, 25 Jul 2014 10:27:13 +0200
> Jiří Prchal <> wrote:
> [...]
>>> Could you also paste the content of /sys/kernel/debug/gpio ?
>> The /sys/kernel/debug/ is empty.
> You have to enable CONFIG_DEBUG_FS in your config and then mount the
> debug file system:
> #mount -t debugfs dbg /sys/kernel/debug
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