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Commit 96706600 authored by David Brownell's avatar David Brownell Committed by Haavard Skinnemoen
Browse files

ngw100: export J15 through sysfs 



The NGW100 board has jumper J15 (near the reset button) which
is unused.  This patch exports it through the GPIO sysfs support
(as /sys/class/gpio/gpio62/value) so that it's easily queried
by boot scripts or whatever might want to know if the jumper
has been installed (value = 0) or not (value = 1, "default").

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
[haavard.skinnemoen@atmel.com: add missing include]
Signed-off-by: default avatarHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
parent 70664124

arch/avr32/boards/atngw100/setup.c

+10 −0
Original line number Original line Diff line number Diff line
@@ -9,6 +9,7 @@ 
 */

 */

#include <linux/clk.h>

#include <linux/clk.h>

#include <linux/etherdevice.h>

#include <linux/etherdevice.h>

#include <linux/gpio.h>

#include <linux/irq.h>

#include <linux/irq.h>

#include <linux/i2c.h>

#include <linux/i2c.h>

#include <linux/i2c-gpio.h>

#include <linux/i2c-gpio.h>
@@ -204,6 +205,15 @@ postcore_initcall(atngw100_init); 




static int __init atngw100_arch_init(void)

static int __init atngw100_arch_init(void)

{

{

	/* PB30 is the otherwise unused jumper on the mainboard, with an

	 * external pullup; the jumper grounds it.  Use it however you

	 * like, including letting U-Boot or Linux tweak boot sequences.

	 */

	at32_select_gpio(GPIO_PIN_PB(30), 0);

	gpio_request(GPIO_PIN_PB(30), "j15");

	gpio_direction_input(GPIO_PIN_PB(30));

	gpio_export(GPIO_PIN_PB(30), false);



	/* set_irq_type() after the arch_initcall for EIC has run, and

	/* set_irq_type() after the arch_initcall for EIC has run, and

	 * before the I2C subsystem could try using this IRQ.

	 * before the I2C subsystem could try using this IRQ.

	 */

	 */