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| author | Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> | 2014-07-26 17:24:45 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-07-28 07:31:18 +0200 |
| commit | b8d2d4923f199d25d6465e3ef09a90ca420ca3f7 (patch) | |
| tree | 5750a17757b5f626c9ddbb2549f8dc0166247f41 | |
| parent | 237bad9cc7b42d98c065dd6e20425b441248358d (diff) | |
| download | barebox-b8d2d4923f199d25d6465e3ef09a90ca420ca3f7.tar.gz barebox-b8d2d4923f199d25d6465e3ef09a90ca420ca3f7.tar.xz | |
USB: host: add xHCI PCI driver
This adds a driver for PCI-attached xHCI controllers.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/usb/host/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/usb/host/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 45 |
3 files changed, 53 insertions, 0 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 8c64a3b99c..c5dc2ea532 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -33,3 +33,10 @@ config USB_XHCI This driver currently only supports virtual USB 2.0 ports, if you plan to use USB 3.0 devices, use a USB 2.0 cable in between. + +config USB_XHCI_PCI + depends on PCI + select USB_XHCI + bool "PCI xHCI driver" + help + Enables support for PCI attached xHCI controllers. diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index a5c009ebd6..0478d34272 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_USB_EHCI_ATMEL) += ehci-atmel.o obj-$(CONFIG_USB_OHCI) += ohci-hcd.o obj-$(CONFIG_USB_OHCI_AT91) += ohci-at91.o obj-$(CONFIG_USB_XHCI) += xhci-hcd.o xhci-hub.o +obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c new file mode 100644 index 0000000000..a140b1dd07 --- /dev/null +++ b/drivers/usb/host/xhci-pci.c @@ -0,0 +1,45 @@ +/* + * PCI driver for xHCI controllers + * + * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <common.h> +#include <init.h> +#include <io.h> +#include <linux/pci.h> +#include <usb/xhci.h> + +static int xhci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct xhci_data data = {}; + + pci_enable_device(pdev); + pci_set_master(pdev); + + data.regs = pci_iomap(pdev, 0); + + return xhci_register(&pdev->dev, &data); +} + +static DEFINE_PCI_DEVICE_TABLE(xhci_pci_tbl) = { + /* handle any USB 3.0 xHCI controller */ + { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_XHCI, ~0), }, + { }, +}; + +static struct pci_driver xhci_pci_driver = { + .name = "xHCI PCI", + .id_table = xhci_pci_tbl, + .probe = xhci_pci_probe, +}; + +static int xhci_pci_init(void) +{ + return pci_register_driver(&xhci_pci_driver); +} +device_initcall(xhci_pci_init); |