/*
* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
#define MX35_H1_TLL_BIT (1 << 5)
#define MX35_H1_USBTE_BIT (1 << 4)
-int mxc_set_usbcontrol(int port, unsigned int flags)
+#define MXC_OTG_OFFSET 0
+#define MXC_H1_OFFSET 0x200
+
+/* USB_CTRL */
+#define MXC_OTG_UCTRL_OWIE_BIT (1 << 27) /* OTG wakeup intr enable */
+#define MXC_OTG_UCTRL_OPM_BIT (1 << 24) /* OTG power mask */
+#define MXC_H1_UCTRL_H1UIE_BIT (1 << 12) /* Host1 ULPI interrupt enable */
+#define MXC_H1_UCTRL_H1WIE_BIT (1 << 11) /* HOST1 wakeup intr enable */
+#define MXC_H1_UCTRL_H1PM_BIT (1 << 8) /* HOST1 power mask */
+
+/* USB_PHY_CTRL_FUNC */
+#define MXC_OTG_PHYCTRL_OC_DIS_BIT (1 << 8) /* OTG Disable Overcurrent Event */
+#define MXC_H1_OC_DIS_BIT (1 << 5) /* UH1 Disable Overcurrent Event */
+
+#define MXC_USBCMD_OFFSET 0x140
+
+/* USBCMD */
+#define MXC_UCMD_ITC_NO_THRESHOLD_MASK (~(0xff << 16)) /* Interrupt Threshold Control */
+
+int mxc_initialize_usb_hw(int port, unsigned int flags)
{
unsigned int v;
#ifdef CONFIG_ARCH_MX3
return 0;
}
#endif /* CONFIG_MACH_MX27 */
+#ifdef CONFIG_ARCH_MX51
+ if (cpu_is_mx51()) {
+ void __iomem *usb_base;
+ u32 usbotg_base;
+ u32 usbother_base;
+ int ret = 0;
+
+ usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+
+ switch (port) {
+ case 0: /* OTG port */
+ usbotg_base = usb_base + MXC_OTG_OFFSET;
+ break;
+ case 1: /* Host 1 port */
+ usbotg_base = usb_base + MXC_H1_OFFSET;
+ break;
+ default:
+ printk(KERN_ERR"%s no such port %d\n", __func__, port);
+ ret = -ENOENT;
+ goto error;
+ }
+ usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
+
+ switch (port) {
+ case 0: /*OTG port */
+ if (flags & MXC_EHCI_INTERNAL_PHY) {
+ v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+ v |= (MXC_OTG_PHYCTRL_OC_DIS_BIT | MXC_OTG_UCTRL_OPM_BIT); /* OC/USBPWR is not used */
+ else
+ v &= ~(MXC_OTG_PHYCTRL_OC_DIS_BIT | MXC_OTG_UCTRL_OPM_BIT); /* OC/USBPWR is used */
+ __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+
+ v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET);
+ if (flags & MXC_EHCI_WAKEUP_ENABLED)
+ v |= MXC_OTG_UCTRL_OWIE_BIT;/* OTG wakeup enable */
+ else
+ v &= ~MXC_OTG_UCTRL_OWIE_BIT;/* OTG wakeup disable */
+ __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
+ }
+ break;
+ case 1: /* Host 1 */
+ /*Host ULPI */
+ v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET);
+ if (flags & MXC_EHCI_WAKEUP_ENABLED)
+ v &= ~(MXC_H1_UCTRL_H1WIE_BIT | MXC_H1_UCTRL_H1UIE_BIT);/* HOST1 wakeup/ULPI intr disable */
+ else
+ v &= ~(MXC_H1_UCTRL_H1WIE_BIT | MXC_H1_UCTRL_H1UIE_BIT);/* HOST1 wakeup/ULPI intr disable */
+
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+ v &= ~MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used*/
+ else
+ v |= MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used*/
+ __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
+
+ v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+ v &= ~MXC_H1_OC_DIS_BIT; /* OC is used */
+ else
+ v |= MXC_H1_OC_DIS_BIT; /* OC is not used */
+ __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+
+ v = __raw_readl(usbotg_base + MXC_USBCMD_OFFSET);
+ if (flags & MXC_EHCI_ITC_NO_THRESHOLD)
+ /* Interrupt Threshold Control:Immediate (no threshold) */
+ v &= MXC_UCMD_ITC_NO_THRESHOLD_MASK;
+ __raw_writel(v, usbotg_base + MXC_USBCMD_OFFSET);
+ break;
+ }
+
+error:
+ iounmap(usb_base);
+ return ret;
+ }
+#endif
printk(KERN_WARNING
"%s() unable to setup USBCONTROL for this CPU\n", __func__);
return -EINVAL;
}
-EXPORT_SYMBOL(mxc_set_usbcontrol);
+EXPORT_SYMBOL(mxc_initialize_usb_hw);
#define MXC_EHCI_INTERNAL_PHY (1 << 7)
#define MXC_EHCI_IPPUE_DOWN (1 << 8)
#define MXC_EHCI_IPPUE_UP (1 << 9)
+#define MXC_EHCI_WAKEUP_ENABLED (1 << 10)
+#define MXC_EHCI_ITC_NO_THRESHOLD (1 << 11)
+
+#define MXC_USBCTRL_OFFSET 0
+#define MXC_USB_PHY_CTR_FUNC_OFFSET 0x8
+#define MXC_USB_PHY_CTR_FUNC2_OFFSET 0xc
+
+#define MX5_USBOTHER_REGS_OFFSET 0x800
+
+/* USB_PHY_CTRL_FUNC2*/
+#define MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK 0x3
+#define MX5_USB_UTMI_PHYCTRL1_PLLDIV_SHIFT 0
struct mxc_usbh_platform_data {
int (*init)(struct platform_device *pdev);
struct otg_transceiver *otg;
};
-int mxc_set_usbcontrol(int port, unsigned int flags);
+int mxc_initialize_usb_hw(int port, unsigned int flags);
#endif /* __INCLUDE_ASM_ARCH_MXC_EHCI_H */