On Tue, Jan 27, 2015 at 9:23 AM, Simon Glass sjg@chromium.org wrote:
Add a driver which locates the available XHCI controllers on the PCI bus and makes them available.
Signed-off-by: Simon Glass sjg@chromium.org
drivers/usb/host/Makefile | 1 + drivers/usb/host/xhci-pci.c | 60 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 61 insertions(+) create mode 100644 drivers/usb/host/xhci-pci.c
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index c11b551..66d6e9a 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -47,6 +47,7 @@ obj-$(CONFIG_USB_XHCI) += xhci.o xhci-mem.o xhci-ring.o obj-$(CONFIG_USB_XHCI_KEYSTONE) += xhci-keystone.o obj-$(CONFIG_USB_XHCI_EXYNOS) += xhci-exynos5.o obj-$(CONFIG_USB_XHCI_OMAP) += xhci-omap.o +obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
# designware obj-$(CONFIG_USB_DWC2) += dwc2.o diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c new file mode 100644 index 0000000..361fcce --- /dev/null +++ b/drivers/usb/host/xhci-pci.c @@ -0,0 +1,60 @@ +/*
- Copyright (c) 2015, Google, Inc
- Written by Simon Glass sjg@chromium.org
- All rights reserved.
- SPDX-License-Identifier: GPL-2.0
- */
+#include <common.h> +#include <errno.h> +#include <pci.h> +#include <usb.h>
+#include "xhci.h"
+/*
- Create the appropriate control structures to manage a new XHCI host
- controller.
- */
+int xhci_hcd_init(int index, struct xhci_hccr **ret_hccr,
struct xhci_hcor **ret_hcor)+{
struct xhci_hccr *hccr;struct xhci_hcor *hcor;pci_dev_t pdev;uint32_t cmd;int len;pdev = pci_find_class(PCI_CLASS_SERIAL_USB_XHCI, index);if (pdev < 0) {printf("XHCI host controller not found\n");return -1;}hccr = (struct xhci_hccr *)pci_map_bar(pdev,PCI_BASE_ADDRESS_0, PCI_REGION_MEM);len = HC_LENGTH(xhci_readl(&hccr->cr_capbase));hcor = (struct xhci_hcor *)((uint32_t)hccr + len);debug("XHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",(uint32_t)hccr, (uint32_t)hcor, len);*ret_hccr = hccr;*ret_hcor = hcor;/* enable busmaster */pci_read_config_dword(pdev, PCI_COMMAND, &cmd);cmd |= PCI_COMMAND_MASTER;pci_write_config_dword(pdev, PCI_COMMAND, cmd);return 0;+}
+/*
- Destroy the appropriate control structures corresponding * to the XHCI host
- controller
- */
+void xhci_hcd_stop(int index) +{
+}
Reviewed-by: Bin Meng bmeng.cn@gmail.com