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Commit d088e5fe authored by Christer Weinigel's avatar Christer Weinigel Committed by Ben Dooks
Browse files

[ARM] Acer n30: USB bus pull-up support. 



Add support for the USB D+ pull up on the Acer N30.  This is needed
for the USB gadget to work properly.

Signed-off-by: default avatarChrister Weinigel <christer@weinigel.se>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 196a0475

arch/arm/mach-s3c2410/mach-n30.c

+25 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ 
#include <asm/plat-s3c24xx/cpu.h>

#include <asm/plat-s3c24xx/devs.h>

#include <asm/plat-s3c24xx/s3c2410.h>

#include <asm/plat-s3c24xx/udc.h>



static struct map_desc n30_iodesc[] __initdata = {

	/* nothing here yet */
@@ -74,6 +75,29 @@ static struct s3c2410_uartcfg n30_uartcfgs[] = { 
	},

};



static void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd)

{

	switch (cmd)

	{

		case S3C2410_UDC_P_ENABLE :

			s3c2410_gpio_setpin(S3C2410_GPB3, 1);

			break;

		case S3C2410_UDC_P_DISABLE :

			s3c2410_gpio_setpin(S3C2410_GPB3, 0);

			break;

		case S3C2410_UDC_P_RESET :

			break;

		default:

			break;

	}

}



static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {

	.udc_command		= n30_udc_pullup,

	.vbus_pin		= S3C2410_GPG1,

	.vbus_pin_inverted	= 0,

};



static struct platform_device *n30_devices[] __initdata = {

	&s3c_device_lcd,

	&s3c_device_wdt,
@@ -107,6 +131,7 @@ static void __init n30_init_irq(void) 
static void __init n30_init(void)

{

	s3c_device_i2c.dev.platform_data = &n30_i2ccfg;

	s3c24xx_udc_set_platdata(&n30_udc_cfg);



	/* Turn off suspend on both USB ports, and switch the

	 * selectable USB port to USB device mode. */