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authorChrister Weinigel <christer@weinigel.se>2008-07-07 18:12:42 +0100
committerBen Dooks <ben-linux@fluff.org>2008-07-07 18:13:03 +0100
commitd088e5fe586287da003341e7bbfdad15e0f432f7 (patch)
tree7d90305f2ace431ddbea571277e716e7b562cb19 /arch
parent196a047574e1465b89bc41fda573efc9b9be70e5 (diff)
[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: Christer Weinigel <christer@weinigel.se> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s3c2410/mach-n30.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c
index fc54e07ccac..8edc0c0eb04 100644
--- a/arch/arm/mach-s3c2410/mach-n30.c
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -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. */