@ -5,9 +5,62 @@
*/
*/
# include <common.h>
# include <common.h>
# include <dm.h>
# include <asm/gpio.h>
# include <asm/gpio.h>
# include <dm/device-internal.h>
# include <dm/uclass-internal.h>
# define GPIO_BANKE_NAME "gpioe"
int arch_early_init_r ( void )
int arch_early_init_r ( void )
{
{
return 0 ;
return 0 ;
}
}
int misc_init_r ( void )
{
struct udevice * dev ;
struct gpio_desc desc ;
int ret ;
/*
* Turn on USB VBUS for the two USB ports on the board .
* Each port ' s VBUS is controlled by a GPIO pin .
*/
ret = uclass_find_device_by_name ( UCLASS_GPIO , GPIO_BANKE_NAME , & dev ) ;
if ( ret ) {
debug ( " %s: GPIO %s device cannot be not found (ret=%d) \n " ,
__func__ , GPIO_BANKE_NAME , ret ) ;
return ret ;
}
ret = device_probe ( dev ) ;
if ( ret ) {
debug ( " %s: GPIO %s device probe failed (ret=%d) \n " ,
__func__ , GPIO_BANKE_NAME , ret ) ;
return ret ;
}
desc . dev = dev ;
desc . flags = GPIOD_IS_OUT ;
/* GPIO E8 controls the bottom port */
desc . offset = 8 ;
ret = dm_gpio_request ( & desc , " usb_host_en0 " ) ;
if ( ret )
return ret ;
dm_gpio_set_value ( & desc , 1 ) ;
/* GPIO E9 controls the upper port */
desc . offset = 9 ;
ret = dm_gpio_request ( & desc , " usb_host_en1 " ) ;
if ( ret )
return ret ;
dm_gpio_set_value ( & desc , 1 ) ;
return 0 ;
}