+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
* Copyright (C) 2010 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
-#include <asm/imx-common/iomux-v3.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <asm/mach-imx/sys_proto.h>
#include <dm.h>
+#include <asm/mach-types.h>
+#include <power/regulator.h>
#include "ehci.h"
+DECLARE_GLOBAL_DATA_PTR;
+
#define USB_OTGREGS_OFFSET 0x000
#define USB_H1REGS_OFFSET 0x200
#define USB_H2REGS_OFFSET 0x400
#define ANADIG_USB2_PLL_480_CTRL_EN_USB_CLKS 0x00000040
#define USBNC_OFFSET 0x200
+#define USBNC_PHY_STATUS_OFFSET 0x23C
#define USBNC_PHYSTATUS_ID_DIG (1 << 4) /* otg_id status */
#define USBNC_PHYCFG2_ACAENB (1 << 4) /* otg_id detection enable */
#define UCTRL_PWR_POL (1 << 9) /* OTG Polarity of Power Pin */
/* Stop then Reset */
clrbits_le32(usb_cmd, UCMD_RUN_STOP);
- ret = wait_for_bit(__func__, usb_cmd, UCMD_RUN_STOP, false, 10000,
- false);
+ ret = wait_for_bit_le32(usb_cmd, UCMD_RUN_STOP, false, 10000, false);
if (ret)
return ret;
setbits_le32(usb_cmd, UCMD_RESET);
- ret = wait_for_bit(__func__, usb_cmd, UCMD_RESET, false, 10000, false);
+ ret = wait_for_bit_le32(usb_cmd, UCMD_RESET, false, 10000, false);
if (ret)
return ret;
return 0;
}
-#ifndef CONFIG_DM_USB
+#if !CONFIG_IS_ENABLED(DM_USB)
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
struct ehci_mx6_priv_data {
struct ehci_ctrl ctrl;
struct usb_ehci *ehci;
+ struct udevice *vbus_supply;
enum usb_init_type init_type;
int portnr;
};
if (ret)
return ret;
- board_ehci_power(priv->portnr, (type == USB_INIT_DEVICE) ? 0 : 1);
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ if (priv->vbus_supply) {
+ ret = regulator_set_enable(priv->vbus_supply,
+ (type == USB_INIT_DEVICE) ?
+ false : true);
+ if (ret) {
+ puts("Error enabling VBUS supply\n");
+ return ret;
+ }
+ }
+#endif
if (type == USB_INIT_DEVICE)
return 0;
.init_after_reset = mx6_init_after_reset
};
+static int ehci_usb_phy_mode(struct udevice *dev)
+{
+ struct usb_platdata *plat = dev_get_platdata(dev);
+ void *__iomem addr = (void *__iomem)devfdt_get_addr(dev);
+ void *__iomem phy_ctrl, *__iomem phy_status;
+ const void *blob = gd->fdt_blob;
+ int offset = dev_of_offset(dev), phy_off;
+ u32 val;
+
+ /*
+ * About fsl,usbphy, Refer to
+ * Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt.
+ */
+ if (is_mx6()) {
+ phy_off = fdtdec_lookup_phandle(blob,
+ offset,
+ "fsl,usbphy");
+ if (phy_off < 0)
+ return -EINVAL;
+
+ addr = (void __iomem *)fdtdec_get_addr(blob, phy_off,
+ "reg");
+ if ((fdt_addr_t)addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+
+ phy_ctrl = (void __iomem *)(addr + USBPHY_CTRL);
+ val = readl(phy_ctrl);
+
+ if (val & USBPHY_CTRL_OTG_ID)
+ plat->init_type = USB_INIT_DEVICE;
+ else
+ plat->init_type = USB_INIT_HOST;
+ } else if (is_mx7()) {
+ phy_status = (void __iomem *)(addr +
+ USBNC_PHY_STATUS_OFFSET);
+ val = readl(phy_status);
+
+ if (val & USBNC_PHYSTATUS_ID_DIG)
+ plat->init_type = USB_INIT_DEVICE;
+ else
+ plat->init_type = USB_INIT_HOST;
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ehci_usb_ofdata_to_platdata(struct udevice *dev)
+{
+ struct usb_platdata *plat = dev_get_platdata(dev);
+ const char *mode;
+
+ mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "dr_mode", NULL);
+ if (mode) {
+ if (strcmp(mode, "peripheral") == 0)
+ plat->init_type = USB_INIT_DEVICE;
+ else if (strcmp(mode, "host") == 0)
+ plat->init_type = USB_INIT_HOST;
+ else if (strcmp(mode, "otg") == 0)
+ return ehci_usb_phy_mode(dev);
+ else
+ return -EINVAL;
+
+ return 0;
+ }
+
+ return ehci_usb_phy_mode(dev);
+}
+
static int ehci_usb_probe(struct udevice *dev)
{
struct usb_platdata *plat = dev_get_platdata(dev);
- struct usb_ehci *ehci = (struct usb_ehci *)dev_get_addr(dev);
+ struct usb_ehci *ehci = (struct usb_ehci *)devfdt_get_addr(dev);
struct ehci_mx6_priv_data *priv = dev_get_priv(dev);
+ enum usb_init_type type = plat->init_type;
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
int ret;
priv->ehci = ehci;
priv->portnr = dev->seq;
- priv->init_type = plat->init_type;
+ priv->init_type = type;
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ ret = device_get_supply_regulator(dev, "vbus-supply",
+ &priv->vbus_supply);
+ if (ret)
+ debug("%s: No vbus supply\n", dev->name);
+#endif
ret = ehci_mx6_common_init(ehci, priv->portnr);
if (ret)
return ret;
- board_ehci_power(priv->portnr, (priv->init_type == USB_INIT_DEVICE) ? 0 : 1);
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ if (priv->vbus_supply) {
+ ret = regulator_set_enable(priv->vbus_supply,
+ (type == USB_INIT_DEVICE) ?
+ false : true);
+ if (ret) {
+ puts("Error enabling VBUS supply\n");
+ return ret;
+ }
+ }
+#endif
if (priv->init_type == USB_INIT_HOST) {
setbits_le32(&ehci->usbmode, CM_HOST);
return ehci_register(dev, hccr, hcor, &mx6_ehci_ops, 0, priv->init_type);
}
-static int ehci_usb_remove(struct udevice *dev)
-{
- int ret;
-
- ret = ehci_deregister(dev);
- if (ret)
- return ret;
-
- return 0;
-}
-
static const struct udevice_id mx6_usb_ids[] = {
{ .compatible = "fsl,imx27-usb" },
{ }
.name = "ehci_mx6",
.id = UCLASS_USB,
.of_match = mx6_usb_ids,
+ .ofdata_to_platdata = ehci_usb_ofdata_to_platdata,
.probe = ehci_usb_probe,
- .remove = ehci_usb_remove,
+ .remove = ehci_deregister,
.ops = &ehci_usb_ops,
.platdata_auto_alloc_size = sizeof(struct usb_platdata),
.priv_auto_alloc_size = sizeof(struct ehci_mx6_priv_data),
git.openpandora.org / pandora-u-boot.git / blobdiff