Commit 9a4c6e9a authored by Siarhei Siamashka's avatar Siarhei Siamashka Committed by Hans de Goede

sunxi: Fix USB regulators in Linksprite_pcDuino_defconfig

The pcDuino1 board unconditionally provides 5V to USB host
receptacles. The pcDuino2 board has a voltage regulator,
controlled by the PD2 pin which is pulled-up by default
(so that the USB power is also enabled by default).

Not specifying pins for enabling USB power in the defconfig
means that the PH3 and PH6 pins are driven high by default.
The PH6 pin is available on the Arduino-compatible expansion
header and touching it is not nice (this may be even dangerous,
depending on what kind of role is assigned to this particular
pin by various Arduino shields).

This patch explicitly configures the USB VBUS pins to "",
which means that no pins should be touched. The patch has
been tested on a pcDuino2 board and USB still works.
Signed-off-by: default avatarSiarhei Siamashka <siarhei.siamashka@gmail.com>
Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent 974936a8
CONFIG_ARM=y
CONFIG_ARCH_SUNXI=y
CONFIG_MACH_SUN4I=y
CONFIG_USB1_VBUS_PIN=""
CONFIG_USB2_VBUS_PIN=""
CONFIG_DEFAULT_DEVICE_TREE="sun4i-a10-pcduino"
# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
CONFIG_SPL=y
......
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