usb: Remove unused ppc4xx EHCI host driver

ppc4xx support was removed some time ago. Lets remove the now unused
EHCI driver and all its references for this platform as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Marek Vasut <marex@denx.de>

drivers/usb/host/Makefile

@@ -35,7 +35,6 @@ obj-$(CONFIG_USB_EHCI_MX5) += ehci-mx5.o
 obj-$(CONFIG_USB_EHCI_MX6) += ehci-mx6.o
 obj-$(CONFIG_USB_EHCI_MX7) += ehci-mx6.o
 obj-$(CONFIG_USB_EHCI_OMAP) += ehci-omap.o
-obj-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o
 obj-$(CONFIG_USB_EHCI_MARVELL) += ehci-marvell.o
 obj-$(CONFIG_USB_EHCI_MSM) += ehci-msm.o
 obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o

drivers/usb/host/ehci-ppc4xx.c

@@ -1,35 +0,0 @@
-/*
- * (C) Copyright 2010, Chris Zhang <chris@seamicro.com>
- *
- * Author: Chris Zhang <chris@seamicro.com>
- * This code is based on ehci freescale driver
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-#include <usb.h>
-#include <asm/io.h>
-
-#include "ehci.h"
-
-/*
- * Create the appropriate control structures to manage
- * a new EHCI host controller.
- */
-int ehci_hcd_init(int index, enum usb_init_type init,
-		struct ehci_hccr **hccr, struct ehci_hcor **hcor)
-{
-	*hccr = (struct ehci_hccr *)(CONFIG_SYS_PPC4XX_USB_ADDR);
-	*hcor = (struct ehci_hcor *)((uint32_t) *hccr +
-		HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
-	return 0;
-}
-
-/*
- * Destroy the appropriate control structures corresponding
- * the the EHCI host controller.
- */
-int ehci_hcd_stop(int index)
-{
-	return 0;
-}