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path: root/drivers/usb/host/ehci-octeon.c
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Diffstat (limited to 'drivers/usb/host/ehci-octeon.c')
-rw-r--r--drivers/usb/host/ehci-octeon.c188
1 files changed, 0 insertions, 188 deletions
diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c
deleted file mode 100644
index 9051439039a7..000000000000
--- a/drivers/usb/host/ehci-octeon.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * EHCI HCD glue for Cavium Octeon II SOCs.
- *
- * Loosely based on ehci-au1xxx.c
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2010 Cavium Networks
- *
- */
-
-#include <linux/platform_device.h>
-
-#include <asm/octeon/octeon.h>
-#include <asm/octeon/cvmx-uctlx-defs.h>
-
-#define OCTEON_EHCI_HCD_NAME "octeon-ehci"
-
-/* Common clock init code. */
-void octeon2_usb_clocks_start(void);
-void octeon2_usb_clocks_stop(void);
-
-static void ehci_octeon_start(void)
-{
- union cvmx_uctlx_ehci_ctl ehci_ctl;
-
- octeon2_usb_clocks_start();
-
- ehci_ctl.u64 = cvmx_read_csr(CVMX_UCTLX_EHCI_CTL(0));
- /* Use 64-bit addressing. */
- ehci_ctl.s.ehci_64b_addr_en = 1;
- ehci_ctl.s.l2c_addr_msb = 0;
- ehci_ctl.s.l2c_buff_emod = 1; /* Byte swapped. */
- ehci_ctl.s.l2c_desc_emod = 1; /* Byte swapped. */
- cvmx_write_csr(CVMX_UCTLX_EHCI_CTL(0), ehci_ctl.u64);
-}
-
-static void ehci_octeon_stop(void)
-{
- octeon2_usb_clocks_stop();
-}
-
-static const struct hc_driver ehci_octeon_hc_driver = {
- .description = hcd_name,
- .product_desc = "Octeon EHCI",
- .hcd_priv_size = sizeof(struct ehci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ehci_irq,
- .flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
-
- /*
- * basic lifecycle operations
- */
- .reset = ehci_setup,
- .start = ehci_run,
- .stop = ehci_stop,
- .shutdown = ehci_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ehci_urb_enqueue,
- .urb_dequeue = ehci_urb_dequeue,
- .endpoint_disable = ehci_endpoint_disable,
- .endpoint_reset = ehci_endpoint_reset,
-
- /*
- * scheduling support
- */
- .get_frame_number = ehci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ehci_hub_status_data,
- .hub_control = ehci_hub_control,
- .bus_suspend = ehci_bus_suspend,
- .bus_resume = ehci_bus_resume,
- .relinquish_port = ehci_relinquish_port,
- .port_handed_over = ehci_port_handed_over,
-
- .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-};
-
-static u64 ehci_octeon_dma_mask = DMA_BIT_MASK(64);
-
-static int ehci_octeon_drv_probe(struct platform_device *pdev)
-{
- struct usb_hcd *hcd;
- struct ehci_hcd *ehci;
- struct resource *res_mem;
- int irq;
- int ret;
-
- if (usb_disabled())
- return -ENODEV;
-
- irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(&pdev->dev, "No irq assigned\n");
- return -ENODEV;
- }
-
- res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res_mem == NULL) {
- dev_err(&pdev->dev, "No register space assigned\n");
- return -ENODEV;
- }
-
- /*
- * We can DMA from anywhere. But the descriptors must be in
- * the lower 4GB.
- */
- pdev->dev.dma_mask = &ehci_octeon_dma_mask;
- ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (ret)
- return ret;
-
- hcd = usb_create_hcd(&ehci_octeon_hc_driver, &pdev->dev, "octeon");
- if (!hcd)
- return -ENOMEM;
-
- hcd->rsrc_start = res_mem->start;
- hcd->rsrc_len = resource_size(res_mem);
-
- hcd->regs = devm_ioremap_resource(&pdev->dev, res_mem);
- if (IS_ERR(hcd->regs)) {
- ret = PTR_ERR(hcd->regs);
- goto err1;
- }
-
- ehci_octeon_start();
-
- ehci = hcd_to_ehci(hcd);
-
- /* Octeon EHCI matches CPU endianness. */
-#ifdef __BIG_ENDIAN
- ehci->big_endian_mmio = 1;
-#endif
-
- ehci->caps = hcd->regs;
-
- ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
- if (ret) {
- dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);
- goto err2;
- }
- device_wakeup_enable(hcd->self.controller);
-
- platform_set_drvdata(pdev, hcd);
-
- return 0;
-err2:
- ehci_octeon_stop();
-
-err1:
- usb_put_hcd(hcd);
- return ret;
-}
-
-static int ehci_octeon_drv_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_remove_hcd(hcd);
-
- ehci_octeon_stop();
- usb_put_hcd(hcd);
-
- return 0;
-}
-
-static struct platform_driver ehci_octeon_driver = {
- .probe = ehci_octeon_drv_probe,
- .remove = ehci_octeon_drv_remove,
- .shutdown = usb_hcd_platform_shutdown,
- .driver = {
- .name = OCTEON_EHCI_HCD_NAME,
- .owner = THIS_MODULE,
- }
-};
-
-MODULE_ALIAS("platform:" OCTEON_EHCI_HCD_NAME);