USB: EHCI: remove CNS3xxx EHCI platform driver

The users have been converted to use the ehci platform driver instead, thus
making the ehci-cns3xxx driver obsolete, so remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 5 insertions, 161 deletions

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index e6b64f606080..d21c0070b05f 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -215,9 +215,13 @@ config USB_W90X900_EHCI
                 Enables support for the W90X900 USB controller
 
 config USB_CNS3XXX_EHCI
-        bool "Cavium CNS3XXX EHCI Module"
+        bool "Cavium CNS3XXX EHCI Module (DEPRECATED)"
         depends on USB_EHCI_HCD && ARCH_CNS3XXX
+        select USB_EHCI_HCD_PLATFORM
         ---help---
+          This option is deprecated now and the driver was removed, use
+          USB_EHCI_HCD_PLATFORM instead.
+
           Enable support for the CNS3XXX SOC's on-chip EHCI controller.
           It is needed for high-speed (480Mbit/sec) USB 2.0 device
           support.
diff --git a/drivers/usb/host/ehci-cns3xxx.c b/drivers/usb/host/ehci-cns3xxx.c
deleted file mode 100644
index d91708d2e729..000000000000
--- a/drivers/usb/host/ehci-cns3xxx.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright 2008 Cavium Networks
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, Version 2, as
- * published by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-#include <linux/atomic.h>
-#include <mach/cns3xxx.h>
-#include <mach/pm.h>
-
-static int cns3xxx_ehci_init(struct usb_hcd *hcd)
-{
-        struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-        int retval;
-
-        /*
-         * EHCI and OHCI share the same clock and power,
-         * resetting twice would cause the 1st controller been reset.
-         * Therefore only do power up  at the first up device, and
-         * power down at the last down device.
-         *
-         * Set USB AHB INCR length to 16
-         */
-        if (atomic_inc_return(&usb_pwr_ref) == 1) {
-                cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
-                cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
-                cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
-                __raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
-                        MISC_CHIP_CONFIG_REG);
-        }
-
-        ehci->caps = hcd->regs;
-
-        hcd->has_tt = 0;
-
-        retval = ehci_setup(hcd);
-        if (retval)
-                return retval;
-
-        ehci_port_power(ehci, 0);
-
-        return retval;
-}
-
-static const struct hc_driver cns3xxx_ehci_hc_driver = {
-        .description            = hcd_name,
-        .product_desc           = "CNS3XXX EHCI Host Controller",
-        .hcd_priv_size          = sizeof(struct ehci_hcd),
-        .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2,
-        .reset                  = cns3xxx_ehci_init,
-        .start                  = ehci_run,
-        .stop                   = ehci_stop,
-        .shutdown               = ehci_shutdown,
-        .urb_enqueue            = ehci_urb_enqueue,
-        .urb_dequeue            = ehci_urb_dequeue,
-        .endpoint_disable       = ehci_endpoint_disable,
-        .endpoint_reset         = ehci_endpoint_reset,
-        .get_frame_number       = ehci_get_frame,
-        .hub_status_data        = ehci_hub_status_data,
-        .hub_control            = ehci_hub_control,
-#ifdef CONFIG_PM
-        .bus_suspend            = ehci_bus_suspend,
-        .bus_resume             = ehci_bus_resume,
-#endif
-        .relinquish_port        = ehci_relinquish_port,
-        .port_handed_over       = ehci_port_handed_over,
-
-        .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
-};
-
-static int cns3xxx_ehci_probe(struct platform_device *pdev)
-{
-        struct device *dev = &pdev->dev;
-        struct usb_hcd *hcd;
-        const struct hc_driver *driver = &cns3xxx_ehci_hc_driver;
-        struct resource *res;
-        int irq;
-        int retval;
-
-        if (usb_disabled())
-                return -ENODEV;
-
-        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-        if (!res) {
-                dev_err(dev, "Found HC with no IRQ.\n");
-                return -ENODEV;
-        }
-        irq = res->start;
-
-        hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
-        if (!hcd)
-                return -ENOMEM;
-
-        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(dev, "Found HC with no register addr.\n");
-                retval = -ENODEV;
-                goto err1;
-        }
-
-        hcd->rsrc_start = res->start;
-        hcd->rsrc_len = resource_size(res);
-
-        hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-        if (hcd->regs == NULL) {
-                dev_dbg(dev, "error mapping memory\n");
-                retval = -EFAULT;
-                goto err1;
-        }
-
-        retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
-        if (retval == 0)
-                return retval;
-
-err1:
-        usb_put_hcd(hcd);
-
-        return retval;
-}
-
-static int cns3xxx_ehci_remove(struct platform_device *pdev)
-{
-        struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-        usb_remove_hcd(hcd);
-
-        /*
-         * EHCI and OHCI share the same clock and power,
-         * resetting twice would cause the 1st controller been reset.
-         * Therefore only do power up  at the first up device, and
-         * power down at the last down device.
-         */
-        if (atomic_dec_return(&usb_pwr_ref) == 0)
-                cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
-
-        usb_put_hcd(hcd);
-
-        platform_set_drvdata(pdev, NULL);
-
-        return 0;
-}
-
-MODULE_ALIAS("platform:cns3xxx-ehci");
-
-static struct platform_driver cns3xxx_ehci_driver = {
-        .probe = cns3xxx_ehci_probe,
-        .remove = cns3xxx_ehci_remove,
-        .driver = {
-                .name = "cns3xxx-ehci",
-        },
-};
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index add37bc4bc18..28fb5ddaf786 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1259,11 +1259,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER         ehci_octeon_driver
 #endif
 
-#ifdef CONFIG_USB_CNS3XXX_EHCI
-#include "ehci-cns3xxx.c"
-#define PLATFORM_DRIVER         cns3xxx_ehci_driver
-#endif
-
 #ifdef CONFIG_ARCH_VT8500
 #include "ehci-vt8500.c"
 #define PLATFORM_DRIVER         vt8500_ehci_driver