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| author | ganbold <ganbold@FreeBSD.org> | 2013-02-06 01:03:13 +0000 |
|---|---|---|
| committer | ganbold <ganbold@FreeBSD.org> | 2013-02-06 01:03:13 +0000 |
| commit | e1ce6ad8dd8348d781f3da2548bc66a336e4a5fc (patch) | |
| tree | 065f7a84cca267307a483f702e223f019013bf1a /sys/arm/allwinner/a10_ehci.c | |
| parent | 34f6d259a30c45a17229a6742c75eaf1a57452f6 (diff) | |
| download | FreeBSD-src-e1ce6ad8dd8348d781f3da2548bc66a336e4a5fc.zip FreeBSD-src-e1ce6ad8dd8348d781f3da2548bc66a336e4a5fc.tar.gz | |
Use and set gpio pin to high to power up usb.
Approved by: gonzo@
Diffstat (limited to 'sys/arm/allwinner/a10_ehci.c')
| -rw-r--r-- | sys/arm/allwinner/a10_ehci.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sys/arm/allwinner/a10_ehci.c b/sys/arm/allwinner/a10_ehci.c index d3a90d0..0d1636b 100644 --- a/sys/arm/allwinner/a10_ehci.c +++ b/sys/arm/allwinner/a10_ehci.c @@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$"); #include <sys/condvar.h> #include <sys/kernel.h> #include <sys/module.h> +#include <sys/gpio.h> #include <machine/bus.h> #include <dev/ofw/ofw_bus.h> @@ -58,6 +59,8 @@ __FBSDID("$FreeBSD$"); #include <dev/usb/controller/ehci.h> #include <dev/usb/controller/ehcireg.h> +#include "gpio_if.h" + #include "a10_clk.h" #define EHCI_HC_DEVSTR "Allwinner Integrated USB 2.0 controller" @@ -70,8 +73,9 @@ __FBSDID("$FreeBSD$"); #define SW_ULPI_BYPASS (1 << 0) #define SW_AHB_INCRX_ALIGN (1 << 8) -#define SW_AHB_INCR4 (1 << 9) +#define SW_AHB_INCR4 (1 << 9) #define SW_AHB_INCR8 (1 << 10) +#define GPIO_USB2_PWR 227 #define A10_READ_4(sc, reg) \ bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, reg) @@ -101,6 +105,7 @@ a10_ehci_attach(device_t self) { ehci_softc_t *sc = device_get_softc(self); bus_space_handle_t bsh; + device_t sc_gpio_dev; int err; int rid; uint32_t reg_value = 0; @@ -153,6 +158,13 @@ a10_ehci_attach(device_t self) sprintf(sc->sc_vendor, "Allwinner"); + /* Get the GPIO device, we need this to give power to USB */ + sc_gpio_dev = devclass_get_device(devclass_find("gpio"), 0); + if (sc_gpio_dev == NULL) { + device_printf(self, "Error: failed to get the GPIO device\n"); + goto error; + } + err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); if (err) { @@ -166,6 +178,10 @@ a10_ehci_attach(device_t self) /* Enable clock for USB */ a10_clk_usb_activate(); + /* Give power to USB */ + GPIO_PIN_SETFLAGS(sc_gpio_dev, GPIO_USB2_PWR, GPIO_PIN_OUTPUT); + GPIO_PIN_SET(sc_gpio_dev, GPIO_USB2_PWR, GPIO_PIN_HIGH); + /* Enable passby */ reg_value = A10_READ_4(sc, SW_USB_PMU_IRQ_ENABLE); reg_value |= SW_AHB_INCR8; /* AHB INCR8 enable */ |
