]> git.sur5r.net Git - u-boot/blobdiff - drivers/usb/host/ehci-uniphier.c
spi: zynq_[q]spi: Use BIT macro
[u-boot] / drivers / usb / host / ehci-uniphier.c
index 77f6c9d9d141b99f80cd1da6bd6368042f1e1d61..c3f827ca0ae517ada98d3cb3e982beaae27b858b 100644 (file)
@@ -1,28 +1,64 @@
 /*
- * 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;