diff options
Diffstat (limited to 'arch/arm/mach-at91/at91sam9g45_devices.c')
-rw-r--r-- | arch/arm/mach-at91/at91sam9g45_devices.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c index a5a4eb19fbb..809114d5a5a 100644 --- a/arch/arm/mach-at91/at91sam9g45_devices.c +++ b/arch/arm/mach-at91/at91sam9g45_devices.c @@ -131,6 +131,62 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) {} /* -------------------------------------------------------------------- + * USB Host HS (EHCI) + * Needs an OHCI host for low and full speed management + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE) +static u64 ehci_dmamask = DMA_BIT_MASK(32); +static struct at91_usbh_data usbh_ehci_data; + +static struct resource usbh_ehci_resources[] = { + [0] = { + .start = AT91SAM9G45_EHCI_BASE, + .end = AT91SAM9G45_EHCI_BASE + SZ_1M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_UHPHS, + .end = AT91SAM9G45_ID_UHPHS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91_usbh_ehci_device = { + .name = "atmel-ehci", + .id = -1, + .dev = { + .dma_mask = &ehci_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &usbh_ehci_data, + }, + .resource = usbh_ehci_resources, + .num_resources = ARRAY_SIZE(usbh_ehci_resources), +}; + +void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data) +{ + int i; + + if (!data) + return; + + /* Enable VBus control for UHP ports */ + for (i = 0; i < data->ports; i++) { + if (data->vbus_pin[i]) + at91_set_gpio_output(data->vbus_pin[i], 0); + } + + usbh_ehci_data = *data; + at91_clock_associate("uhphs_clk", &at91_usbh_ehci_device.dev, "ehci_clk"); + platform_device_register(&at91_usbh_ehci_device); +} +#else +void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data) {} +#endif + + +/* -------------------------------------------------------------------- * USB HS Device (Gadget) * -------------------------------------------------------------------- */ |