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| author | Hans de Goede <hdegoede@redhat.com> | 2015-01-11 19:33:35 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-01-14 14:56:40 +0100 |
| commit | a90e77dbeb92f78ec06547621a7b22a785a43a3d (patch) | |
| tree | 1f94f00cfb6a8d0f36ba6d39d06c439b57ccde82 /arch/arm/cpu | |
| parent | 4458b7a6e1a601386fce1b76f17a1d41dd7aeddb (diff) | |
| download | u-boot-imx-a90e77dbeb92f78ec06547621a7b22a785a43a3d.zip u-boot-imx-a90e77dbeb92f78ec06547621a7b22a785a43a3d.tar.gz u-boot-imx-a90e77dbeb92f78ec06547621a7b22a785a43a3d.tar.bz2 | |
sunxi: usbc: Add support for usb-vbus0 controller by axp drivebus pin
The axp221 / axp223's N_VBUSEN pin can be configured as an output rather
then an input, and this is used on some boards to control usb-vbus0, add
support for this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/usbc.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/usbc.c b/arch/arm/cpu/armv7/sunxi/usbc.c index 4f11da5..14de9f9 100644 --- a/arch/arm/cpu/armv7/sunxi/usbc.c +++ b/arch/arm/cpu/armv7/sunxi/usbc.c @@ -17,6 +17,15 @@ #include <asm/gpio.h> #include <asm/io.h> #include <common.h> +#ifdef CONFIG_AXP152_POWER +#include <axp152.h> +#endif +#ifdef CONFIG_AXP209_POWER +#include <axp209.h> +#endif +#ifdef CONFIG_AXP221_POWER +#include <axp221.h> +#endif #define SUNXI_USB_PMU_IRQ_ENABLE 0x800 #define SUNXI_USB_CSR 0x404 @@ -71,6 +80,12 @@ static struct sunxi_usbc_hcd { static int enabled_hcd_count; +static bool use_axp_drivebus(int index) +{ + return index == 0 && + strcmp(CONFIG_USB0_VBUS_PIN, "axp_drivebus") == 0; +} + void *sunxi_usbc_get_io_base(int index) { switch (index) { @@ -87,6 +102,9 @@ void *sunxi_usbc_get_io_base(int index) static int get_vbus_gpio(int index) { + if (use_axp_drivebus(index)) + return -1; + switch (index) { case 0: return sunxi_name_to_gpio(CONFIG_USB0_VBUS_PIN); case 1: return sunxi_name_to_gpio(CONFIG_USB1_VBUS_PIN); @@ -233,6 +251,10 @@ void sunxi_usbc_vbus_enable(int index) { struct sunxi_usbc_hcd *sunxi_usbc = &sunxi_usbc_hcd[index]; +#ifdef AXP_DRIVEBUS + if (use_axp_drivebus(index)) + axp_drivebus_enable(); +#endif if (sunxi_usbc->gpio_vbus != -1) gpio_direction_output(sunxi_usbc->gpio_vbus, 1); } @@ -241,6 +263,10 @@ void sunxi_usbc_vbus_disable(int index) { struct sunxi_usbc_hcd *sunxi_usbc = &sunxi_usbc_hcd[index]; +#ifdef AXP_DRIVEBUS + if (use_axp_drivebus(index)) + axp_drivebus_disable(); +#endif if (sunxi_usbc->gpio_vbus != -1) gpio_direction_output(sunxi_usbc->gpio_vbus, 0); } |