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path: root/drivers/usb/host/ohci-octeon.c
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Diffstat (limited to 'drivers/usb/host/ohci-octeon.c')
-rw-r--r--drivers/usb/host/ohci-octeon.c202
1 files changed, 0 insertions, 202 deletions
diff --git a/drivers/usb/host/ohci-octeon.c b/drivers/usb/host/ohci-octeon.c
deleted file mode 100644
index 15af8954085e..000000000000
--- a/drivers/usb/host/ohci-octeon.c
+++ /dev/null
@@ -1,202 +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_OHCI_HCD_NAME "octeon-ohci"
-
-/* Common clock init code. */
-void octeon2_usb_clocks_start(void);
-void octeon2_usb_clocks_stop(void);
-
-static void ohci_octeon_hw_start(void)
-{
- union cvmx_uctlx_ohci_ctl ohci_ctl;
-
- octeon2_usb_clocks_start();
-
- ohci_ctl.u64 = cvmx_read_csr(CVMX_UCTLX_OHCI_CTL(0));
- ohci_ctl.s.l2c_addr_msb = 0;
- ohci_ctl.s.l2c_buff_emod = 1; /* Byte swapped. */
- ohci_ctl.s.l2c_desc_emod = 1; /* Byte swapped. */
- cvmx_write_csr(CVMX_UCTLX_OHCI_CTL(0), ohci_ctl.u64);
-
-}
-
-static void ohci_octeon_hw_stop(void)
-{
- /* Undo ohci_octeon_start() */
- octeon2_usb_clocks_stop();
-}
-
-static int ohci_octeon_start(struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
- int ret;
-
- ret = ohci_init(ohci);
-
- if (ret < 0)
- return ret;
-
- ret = ohci_run(ohci);
-
- if (ret < 0) {
- ohci_err(ohci, "can't start %s", hcd->self.bus_name);
- ohci_stop(hcd);
- return ret;
- }
-
- return 0;
-}
-
-static const struct hc_driver ohci_octeon_hc_driver = {
- .description = hcd_name,
- .product_desc = "Octeon OHCI",
- .hcd_priv_size = sizeof(struct ohci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ohci_irq,
- .flags = HCD_USB11 | HCD_MEMORY,
-
- /*
- * basic lifecycle operations
- */
- .start = ohci_octeon_start,
- .stop = ohci_stop,
- .shutdown = ohci_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- /*
- * scheduling support
- */
- .get_frame_number = ohci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ohci_hub_status_data,
- .hub_control = ohci_hub_control,
-
- .start_port_reset = ohci_start_port_reset,
-};
-
-static int ohci_octeon_drv_probe(struct platform_device *pdev)
-{
- struct usb_hcd *hcd;
- struct ohci_hcd *ohci;
- void *reg_base;
- 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;
- }
-
- /* Ohci is a 32-bit device. */
- ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (ret)
- return ret;
-
- hcd = usb_create_hcd(&ohci_octeon_hc_driver, &pdev->dev, "octeon");
- if (!hcd)
- return -ENOMEM;
-
- hcd->rsrc_start = res_mem->start;
- hcd->rsrc_len = resource_size(res_mem);
-
- reg_base = devm_ioremap_resource(&pdev->dev, res_mem);
- if (IS_ERR(reg_base)) {
- ret = PTR_ERR(reg_base);
- goto err1;
- }
-
- ohci_octeon_hw_start();
-
- hcd->regs = reg_base;
-
- ohci = hcd_to_ohci(hcd);
-
- /* Octeon OHCI matches CPU endianness. */
-#ifdef __BIG_ENDIAN
- ohci->flags |= OHCI_QUIRK_BE_MMIO;
-#endif
-
- ohci_hcd_init(ohci);
-
- 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:
- ohci_octeon_hw_stop();
-
-err1:
- usb_put_hcd(hcd);
- return ret;
-}
-
-static int ohci_octeon_drv_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_remove_hcd(hcd);
-
- ohci_octeon_hw_stop();
- usb_put_hcd(hcd);
-
- return 0;
-}
-
-static struct platform_driver ohci_octeon_driver = {
- .probe = ohci_octeon_drv_probe,
- .remove = ohci_octeon_drv_remove,
- .shutdown = usb_hcd_platform_shutdown,
- .driver = {
- .name = OCTEON_OHCI_HCD_NAME,
- .owner = THIS_MODULE,
- }
-};
-
-MODULE_ALIAS("platform:" OCTEON_OHCI_HCD_NAME);