/*
- * Copyright (C) 2014 Panasonic Corporation
- * Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
+ * Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <linux/err.h>
+#include <linux/io.h>
#include <usb.h>
-#include <asm/arch/ehci-uniphier.h>
+#include <mach/mio-regs.h>
+#include <fdtdec.h>
#include "ehci.h"
-/*
- * Create the appropriate control structures to manage
- * a new EHCI host controller.
- */
+DECLARE_GLOBAL_DATA_PTR;
+
+#define FDT gd->fdt_blob
+#define COMPAT "socionext,uniphier-ehci"
+
+static int get_uniphier_ehci_base(int index, struct ehci_hccr **base)
+{
+ int offset;
+
+ for (offset = fdt_node_offset_by_compatible(FDT, 0, COMPAT);
+ offset >= 0;
+ offset = fdt_node_offset_by_compatible(FDT, offset, COMPAT)) {
+ if (index == 0) {
+ *base = (struct ehci_hccr *)
+ fdtdec_get_addr(FDT, offset, "reg");
+ return 0;
+ }
+ index--;
+ }
+
+ return -ENODEV; /* not found */
+}
+
+static void uniphier_ehci_reset(int index, int on)
+{
+ u32 tmp;
+
+ tmp = readl(MIO_USB_RSTCTRL(index));
+ if (on)
+ tmp &= ~MIO_USB_RSTCTRL_XRST;
+ else
+ tmp |= MIO_USB_RSTCTRL_XRST;
+ writel(tmp, MIO_USB_RSTCTRL(index));
+}
+
int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr,
struct ehci_hcor **hcor)
{
+ int ret;
struct ehci_hccr *cr;
struct ehci_hcor *or;
uniphier_ehci_reset(index, 0);
- cr = (struct ehci_hccr *)(uniphier_ehci_platdata[index].base);
+ ret = get_uniphier_ehci_base(index, &cr);
+ if (ret < 0)
+ return ret;
or = (void *)cr + HC_LENGTH(ehci_readl(&cr->cr_capbase));
*hccr = cr;