[U-Boot] [PATCH v4 1/2] usb: ehci: add Faraday USB 2.0 EHCI support

[Kuo-Jung Su <dantesu@gmail.com>]

From: Kuo-Jung Su <dantesu@faraday-tech.com>

This patch add supports to both Faraday FUSBH200 and FOTG210,
the differences between Faraday EHCI and standard EHCI as
listed bellow:

1. The PORTSC starts at 0x30 instead of 0x44.
2. The CONFIGFLAG(0x40) is not only un-implemented, and
   also has its address removed.
3. Faraday EHCI is a TDI design, but it doesn't
   compatible with the general TDI implementation
   found at both U-Boot and Linux.
4. The ISOC descriptors differs from standard EHCI in
   several ways. Since U-boot doesn't support ISOC,
   we don't have to worry that.

Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com>
CC: Marek Vasut <marex@denx.de>
---
Changes for v4:
   - Use only macro constants and named bit/mask
   - Use weak-aliased functions for tdi implementation and
     also portsc registers to avoid poluting ehci.h with ifdefs

Changes for v3:
   - Coding Style cleanup.
   - Drop bit fields from c struct.
   - Drop macros for wirtel()/readl(), call them directly.
   - Always insert a blank line between declarations and code.
   - Replace all the infinite wait loop with a timeout.
   - Add '__iomem' to all the declaration of HW register pointers.

Changes for v2:
   - Coding Style cleanup.
   - Use readl(), writel(), clrsetbits_le32() to replace REG() macros.
   - Use structure based hardware registers to replace the macro constants.
   - Replace BIT() with BIT_MASK().
   - echi-faraday: Remove debug codes.

 common/usb_hub.c                |   13 +-
 drivers/usb/host/Makefile       |    1 +
 drivers/usb/host/ehci-faraday.c |  146 ++++++++++++++++
 drivers/usb/host/ehci-hcd.c     |  104 ++++++++----
 include/usb/fotg210.h           |  358 +++++++++++++++++++++++++++++++++++++++
 include/usb/fusbh200.h          |   61 +++++++
 6 files changed, 646 insertions(+), 37 deletions(-)
 create mode 100644 drivers/usb/host/ehci-faraday.c
 create mode 100644 include/usb/fotg210.h
 create mode 100644 include/usb/fusbh200.h

diff --git a/common/usb_hub.c b/common/usb_hub.c
index b5eeb62..3c6cb69 100644
--- a/common/usb_hub.c
+++ b/common/usb_hub.c
@@ -419,6 +419,14 @@ static int usb_hub_configure(struct usb_device *dev)
 			portstatus = le16_to_cpu(portsts->wPortStatus);
 			portchange = le16_to_cpu(portsts->wPortChange);

+#ifdef CONFIG_USB_EHCI_FARADAY
+			/* Faraday EHCI needs a long long delay here */
+			if (!portchange && !portstatus) {
+				if (get_timer(start) < 250)
+					continue;
+			}
+#endif
+
 			if ((portchange & USB_PORT_STAT_C_CONNECTION) ==
 				(portstatus & USB_PORT_STAT_CONNECTION))
 				break;
@@ -441,7 +449,9 @@ static int usb_hub_configure(struct usb_device *dev)
 					i + 1, portstatus);
 			usb_clear_port_feature(dev, i + 1,
 						USB_PORT_FEAT_C_ENABLE);
-
+			/* The following hack causes a ghost device problem
+			 * to Faraday EHCI */
+#ifndef CONFIG_USB_EHCI_FARADAY
 			/* EM interference sometimes causes bad shielded USB
 			 * devices to be shutdown by the hub, this hack enables
 			 * them again. Works at least with mouse driver */
@@ -453,6 +463,7 @@ static int usb_hub_configure(struct usb_device *dev)
 						"re-enabling...\n", i + 1);
 					usb_hub_port_connect_change(dev, i);
 			}
+#endif
 		}
 		if (portstatus & USB_PORT_STAT_SUSPEND) {
 			USB_HUB_PRINTF("port %d suspend change\n", i + 1);
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 87a5970..98f2a10 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -43,6 +43,7 @@ COBJS-$(CONFIG_USB_EHCI_FSL) += ehci-mpc512x.o
 else
 COBJS-$(CONFIG_USB_EHCI_FSL) += ehci-fsl.o
 endif
+COBJS-$(CONFIG_USB_EHCI_FARADAY) += ehci-faraday.o
 COBJS-$(CONFIG_USB_EHCI_EXYNOS) += ehci-exynos.o
 COBJS-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o
 COBJS-$(CONFIG_USB_EHCI_MXS) += ehci-mxs.o
diff --git a/drivers/usb/host/ehci-faraday.c b/drivers/usb/host/ehci-faraday.c
new file mode 100644
index 0000000..1be9369
--- /dev/null
+++ b/drivers/usb/host/ehci-faraday.c
@@ -0,0 +1,146 @@
+/*
+ * Faraday USB 2.0 EHCI Controller
+ *
+ * (C) Copyright 2010 Faraday Technology
+ * Dante Su <dantesu@faraday-tech.com>
+ *
+ * This file is released under the terms of GPL v2 and any later version.
+ * See the file COPYING in the root directory of the source tree for details.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <usb.h>
+#include <usb/fusbh200.h>
+#include <usb/fotg210.h>
+
+#include "ehci.h"
+
+#ifndef CONFIG_USB_EHCI_BASE_LIST
+#define CONFIG_USB_EHCI_BASE_LIST	{ CONFIG_USB_EHCI_BASE }
+#endif
+
+union ehci_faraday_regs {
+	struct fusbh200_regs usb;
+	struct fotg210_regs  otg;
+};
+
+static inline int ehci_is_fotg2xx(union ehci_faraday_regs *regs)
+{
+	return !readl(&regs->usb.easstr);
+}
+
+/*
+ * Create the appropriate control structures to manage
+ * a new EHCI host controller.
+ */
+int ehci_hcd_init(int index, struct ehci_hccr **ret_hccr,
+		struct ehci_hcor **ret_hcor)
+{
+	struct ehci_hccr *hccr;
+	struct ehci_hcor *hcor;
+	union ehci_faraday_regs *regs;
+	uint32_t base_list[] = CONFIG_USB_EHCI_BASE_LIST;
+
+	if (index < 0 || index >= ARRAY_SIZE(base_list))
+		return -1;
+	regs = (void __iomem *)base_list[index];
+	hccr = (struct ehci_hccr *)&regs->usb.hccr;
+	hcor = (struct ehci_hcor *)&regs->usb.hcor;
+
+	if (ehci_is_fotg2xx(regs)) {
+		/* A-device bus reset */
+		/* ... Power off A-device */
+		setbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSDROP);
+		/* ... Drop vbus and bus traffic */
+		clrbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSREQ);
+		mdelay(1);
+		/* ... Power on A-device */
+		clrbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSDROP);
+		/* ... Drive vbus and bus traffic */
+		setbits_le32(&regs->otg.otgcsr, OTGCSR_A_BUSREQ);
+		mdelay(1);
+		/* Disable OTG & DEV interrupts, triggered at level-high */
+		writel(IMR_IRQLH | IMR_OTG | IMR_DEV, &regs->otg.imr);
+		/* Clear all interrupt status */
+		writel(ISR_HOST | ISR_OTG | ISR_DEV, &regs->otg.isr);
+	} else {
+		/* Interrupt=level-high */
+		setbits_le32(&regs->usb.bmcsr, BMCSR_IRQLH);
+		/* VBUS on */
+		clrbits_le32(&regs->usb.bmcsr, BMCSR_VBUS_OFF);
+		/* Disable all interrupts */
+		writel(0x00, &regs->usb.bmier);
+		writel(0x1f, &regs->usb.bmisr);
+	}
+
+	*ret_hccr = hccr;
+	*ret_hcor = hcor;
+
+	return 0;
+}
+
+/*
+ * Destroy the appropriate control structures corresponding
+ * the the EHCI host controller.
+ */
+int ehci_hcd_stop(int index)
+{
+	return 0;
+}
+
+/*
+ * This ehci_tdi_reset() overrides the weak function
+ * in "ehci-hcd.c".
+ */
+void ehci_tdi_reset(struct ehci_hcor *hcor)
+{
+	/* nothing needs to be done */
+}
+
+/*
+ * This ehci_port_speed() overrides the weak function
+ * in "ehci-hcd.c".
+ */
+int ehci_port_speed(struct ehci_hcor *hcor, unsigned int portsc)
+{
+	int spd, ret = 0;
+	union ehci_faraday_regs *regs = (void __iomem *)((ulong)hcor - 0x10);
+
+	if (ehci_is_fotg2xx(regs))
+		spd = OTGCSR_SPD(readl(&regs->otg.otgcsr));
+	else
+		spd = BMCSR_SPD(readl(&regs->usb.bmcsr));
+
+	switch (spd) {
+	case 0:    /* full speed */
+		break;
+	case 1:    /* low  speed */
+		ret = USB_PORT_STAT_LOW_SPEED;
+		break;
+	case 2:    /* high speed */
+		ret = USB_PORT_STAT_HIGH_SPEED;
+		break;
+	default:
+		printf("ehci-faraday: invalid device speed\n");
+		break;
+	}
+
+	return ret;
+}
+
+/*
+ * This ehci_get_portsc_register() overrides the weak function
+ * in "ehci-hcd.c".
+ */
+uint32_t *ehci_get_portsc_register(struct ehci_hcor *hcor, int port)
+{
+	/* Faraday EHCI has one and only one portsc register */
+	if (port > 0) {
+		printf("The request port(%d) is not configured\n", port);
+		return NULL;
+	}
+
+	/* Faraday EHCI PORTSC register offset is 0x20 from hcor */
+	return (uint32_t *)((uint8_t *)hcor + 0x20);
+}
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c816878..36ad897 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -117,10 +117,50 @@ static struct descriptor {
 };

 #if defined(CONFIG_EHCI_IS_TDI)
-#define ehci_is_TDI()	(1)
-#else
-#define ehci_is_TDI()	(0)
+# define ehci_is_TDI()	(1)
+
+/* put TDI/ARC silicon into EHCI mode */
+void __ehci_tdi_reset(struct ehci_hcor *hcor)
+{
+	uint32_t tmp, *reg_ptr;
+
+	reg_ptr = (uint32_t *)((uint8_t *) + USBMODE);
+	tmp = ehci_readl(reg_ptr);
+	tmp |= USBMODE_CM_HC;
+#if defined(CONFIG_EHCI_MMIO_BIG_ENDIAN)
+	tmp |= USBMODE_BE;
 #endif
+	ehci_writel(reg_ptr, tmp);
+}
+
+void ehci_tdi_reset(struct ehci_hcor *hcor)
+	__attribute__((weak, alias("__ehci_tdi_reset")));
+
+int __ehci_port_speed(struct ehci_hcor *hcor, unsigned int portsc)
+{
+	int ret = 0;
+
+	switch (PORTSC_PSPD(portsc)) {
+	case PORTSC_PSPD_FS:
+		break;
+	case PORTSC_PSPD_LS:
+		ret = USB_PORT_STAT_LOW_SPEED;
+		break;
+	case PORTSC_PSPD_HS:
+	default:
+		ret = USB_PORT_STAT_HIGH_SPEED;
+		break;
+	}
+
+	return ret;
+}
+
+int ehci_port_speed(struct ehci_hcor *hcor, unsigned int portsc)
+	__attribute__((weak, alias("__ehci_port_speed")));
+
+#else  /* CONFIG_EHCI_IS_TDI */
+# define ehci_is_TDI()	(0)
+#endif /* CONFIG_EHCI_IS_TDI */

 void __ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg)
 {
@@ -149,8 +189,6 @@ static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int usec)
 static int ehci_reset(int index)
 {
 	uint32_t cmd;
-	uint32_t tmp;
-	uint32_t *reg_ptr;
 	int ret = 0;

 	cmd = ehci_readl(&ehcic[index].hcor->or_usbcmd);
@@ -163,15 +201,8 @@ static int ehci_reset(int index)
 		goto out;
 	}

-	if (ehci_is_TDI()) {
-		reg_ptr = (uint32_t *)((u8 *)ehcic[index].hcor + USBMODE);
-		tmp = ehci_readl(reg_ptr);
-		tmp |= USBMODE_CM_HC;
-#if defined(CONFIG_EHCI_MMIO_BIG_ENDIAN)
-		tmp |= USBMODE_BE;
-#endif
-		ehci_writel(reg_ptr, tmp);
-	}
+	if (ehci_is_TDI())
+		ehci_tdi_reset(ehcic[index].hcor);

 #ifdef CONFIG_USB_EHCI_TXFIFO_THRESH
 	cmd = ehci_readl(&ehcic[index].hcor->or_txfilltuning);
@@ -573,10 +604,12 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer,
 		dev->act_len = length - QT_TOKEN_GET_TOTALBYTES(token);
 	} else {
 		dev->act_len = 0;
+#ifndef CONFIG_USB_EHCI_FARADAY
 		debug("dev=%u, usbsts=%#x, p[1]=%#x, p[2]=%#x\n",
 		      dev->devnum, ehci_readl(&ctrl->hcor->or_usbsts),
 		      ehci_readl(&ctrl->hcor->or_portsc[0]),
 		      ehci_readl(&ctrl->hcor->or_portsc[1]));
+#endif
 	}

 	free(qtd);
@@ -597,6 +630,18 @@ static inline int min3(int a, int b, int c)
 	return a;
 }

+uint32_t *__ehci_get_portsc_register(struct ehci_hcor *hcor, int port)
+{
+	if (port >= CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) {
+		printf("The request port(%d) is not configured\n", port);
+		return NULL;
+	}
+
+	return (uint32_t *)&hcor->or_portsc[port];
+}
+uint32_t *ehci_get_portsc_register(struct ehci_hcor *hcor, int port)
+	__attribute__((weak, alias("__ehci_get_portsc_register")));
+
 int
 ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
 		 int length, struct devrequest *req)
@@ -609,13 +654,10 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
 	uint32_t *status_reg;
 	struct ehci_ctrl *ctrl = dev->controller;

-	if (le16_to_cpu(req->index) > CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) {
-		printf("The request port(%d) is not configured\n",
-			le16_to_cpu(req->index) - 1);
+	status_reg = ehci_get_portsc_register(ctrl->hcor,
+		le16_to_cpu(req->index) - 1);
+	if (!status_reg)
 		return -1;
-	}
-	status_reg = (uint32_t *)&ctrl->hcor->or_portsc[
-						le16_to_cpu(req->index) - 1];
 	srclen = 0;

 	debug("req=%u (%#x), type=%u (%#x), value=%u, index=%u\n",
@@ -709,23 +751,10 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
 			tmpbuf[0] |= USB_PORT_STAT_RESET;
 		if (reg & EHCI_PS_PP)
 			tmpbuf[1] |= USB_PORT_STAT_POWER >> 8;
-
-		if (ehci_is_TDI()) {
-			switch (PORTSC_PSPD(reg)) {
-			case PORTSC_PSPD_FS:
-				break;
-			case PORTSC_PSPD_LS:
-				tmpbuf[1] |= USB_PORT_STAT_LOW_SPEED >> 8;
-				break;
-			case PORTSC_PSPD_HS:
-			default:
-				tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8;
-				break;
-			}
-		} else {
+		if (ehci_is_TDI())
+			tmpbuf[1] |= ehci_port_speed(ctrl->hcor, reg) >> 8;
+		else
 			tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8;
-		}
-
 		if (reg & EHCI_PS_CSC)
 			tmpbuf[2] |= USB_PORT_STAT_C_CONNECTION;
 		if (reg & EHCI_PS_PEC)
@@ -950,10 +979,13 @@ int usb_lowlevel_init(int index, void **controller)
 	cmd |= CMD_RUN;
 	ehci_writel(&ehcic[index].hcor->or_usbcmd, cmd);

+#ifndef CONFIG_USB_EHCI_FARADAY
 	/* take control over the ports */
 	cmd = ehci_readl(&ehcic[index].hcor->or_configflag);
 	cmd |= FLAG_CF;
 	ehci_writel(&ehcic[index].hcor->or_configflag, cmd);
+#endif
+
 	/* unblock posted write */
 	cmd = ehci_readl(&ehcic[index].hcor->or_usbcmd);
 	mdelay(5);
diff --git a/include/usb/fotg210.h b/include/usb/fotg210.h
new file mode 100644
index 0000000..15b7f01
--- /dev/null
+++ b/include/usb/fotg210.h
@@ -0,0 +1,358 @@
+/*
+ * Faraday USB 2.0 OTG Controller
+ *
+ * (C) Copyright 2010 Faraday Technology
+ * Dante Su <dantesu@faraday-tech.com>
+ *
+ * This file is released under the terms of GPL v2 and any later version.
+ * See the file COPYING in the root directory of the source tree for details.
+ */
+
+#ifndef _FOTG210_H
+#define _FOTG210_H
+
+struct fotg210_regs {
+	/* USB Host Controller */
+	struct {
+		uint32_t data[4];
+	} hccr;			/* 0x00 - 0x0f: hccr */
+	struct {
+		uint32_t data[9];
+	} hcor;			/* 0x10 - 0x33: hcor */
+	uint32_t rsvd1[3];
+	uint32_t miscr;	/* 0x40: Miscellaneous Register */
+	uint32_t rsvd2[15];
+	/* USB OTG Controller */
+	uint32_t otgcsr;/* 0x80: OTG Control Status Register */
+	uint32_t otgisr;/* 0x84: OTG Interrupt Status Register */
+	uint32_t otgier;/* 0x88: OTG Interrupt Enable Register */
+	uint32_t rsvd3[13];
+	uint32_t isr;	/* 0xC0: Global Interrupt Status Register */
+	uint32_t imr;	/* 0xC4: Global Interrupt Mask Register */
+	uint32_t rsvd4[14];
+	/* USB Device Controller */
+	uint32_t dev_ctrl;/* 0x100: Device Control Register */
+	uint32_t dev_addr;/* 0x104: Device Address Register */
+	uint32_t dev_test;/* 0x108: Device Test Register */
+	uint32_t sof_fnr; /* 0x10c: SOF Frame Number Register */
+	uint32_t sof_mtr; /* 0x110: SOF Mask Timer Register */
+	uint32_t phy_tmsr;/* 0x114: PHY Test Mode Selector Register */
+	uint32_t rsvd5[2];
+	uint32_t cxfifo;/* 0x120: CX FIFO Register */
+	uint32_t idle;	/* 0x124: IDLE Counter Register */
+	uint32_t rsvd6[2];
+	uint32_t gimr;	/* 0x130: Group Interrupt Mask Register */
+	uint32_t gimr0; /* 0x134: Group Interrupt Mask Register 0 */
+	uint32_t gimr1; /* 0x138: Group Interrupt Mask Register 1 */
+	uint32_t gimr2; /* 0x13c: Group Interrupt Mask Register 2 */
+	uint32_t gisr;	/* 0x140: Group Interrupt Status Register */
+	uint32_t gisr0; /* 0x144: Group Interrupt Status Register 0 */
+	uint32_t gisr1; /* 0x148: Group Interrupt Status Register 1 */
+	uint32_t gisr2; /* 0x14c: Group Interrupt Status Register 2 */
+	uint32_t rxzlp; /* 0x150: Receive Zero-Length-Packet Register */
+	uint32_t txzlp; /* 0x154: Transfer Zero-Length-Packet Register */
+	uint32_t isoeasr;/* 0x158: ISOC Error/Abort Status Register */
+	uint32_t rsvd7[1];
+	uint32_t iep[8]; /* 0x160 - 0x17f: IN Endpoint Register */
+	uint32_t oep[8]; /* 0x180 - 0x19f: OUT Endpoint Register */
+	uint32_t epmap14;/* 0x1a0: Endpoint Map Register (EP1 ~ 4) */
+	uint32_t epmap58;/* 0x1a4: Endpoint Map Register (EP5 ~ 8) */
+	uint32_t fifomap;/* 0x1a8: FIFO Map Register */
+	uint32_t fifocfg; /* 0x1ac: FIFO Configuration Register */
+	uint32_t fifocsr[4];/* 0x1b0 - 0x1bf: FIFO Control Status Register */
+	uint32_t dma_fifo; /* 0x1c0: DMA Target FIFO Register */
+	uint32_t rsvd8[1];
+	uint32_t dma_ctrl; /* 0x1c8: DMA Control Register */
+	uint32_t dma_addr; /* 0x1cc: DMA Address Register */
+	uint32_t ep0_data; /* 0x1d0: EP0 Setup Packet PIO Register */
+};
+
+/* Miscellaneous Register */
+#define MISCR_SUSPEND  (1 << 6) /* Put transceiver in suspend mode */
+#define MISCR_EOF2(x)  (((x) & 0x3) << 4) /* EOF 2 Timing */
+#define MISCR_EOF1(x)  (((x) & 0x3) << 2) /* EOF 1 Timing */
+#define MISCR_ASST(x)  (((x) & 0x3) << 0) /* Async. Sched. Sleep Timer */
+
+/* OTG Control Status Register */
+#define OTGCSR_SPD_HIGH     (2 << 22) /* Speed of the attached device (host) */
+#define OTGCSR_SPD_LOW      (1 << 22)
+#define OTGCSR_SPD_FULL     (0 << 22)
+#define OTGCSR_SPD_MASK     (3 << 22)
+#define OTGCSR_SPD_SHIFT    22
+#define OTGCSR_SPD(x)       (((x) >> 22) & 0x03)
+#define OTGCSR_DEV_A        (0 << 21) /* Acts as A-device */
+#define OTGCSR_DEV_B        (1 << 21) /* Acts as B-device */
+#define OTGCSR_ROLE_H       (0 << 20) /* Acts as Host */
+#define OTGCSR_ROLE_D       (1 << 20) /* Acts as Device */
+#define OTGCSR_A_VBUS_VLD   (1 << 19) /* A-device VBUS Valid */
+#define OTGCSR_A_SESS_VLD   (1 << 18) /* A-device Session Valid */
+#define OTGCSR_B_SESS_VLD   (1 << 17) /* B-device Session Valid */
+#define OTGCSR_B_SESS_END   (1 << 16) /* B-device Session End */
+#define OTGCSR_HFT_LONG     (1 << 11) /* HDISCON noise filter = 270 us*/
+#define OTGCSR_HFT          (0 << 11) /* HDISCON noise filter = 135 us*/
+#define OTGCSR_VFT_LONG     (1 << 10) /* VBUS noise filter = 472 us*/
+#define OTGCSR_VFT          (0 << 10) /* VBUS noise filter = 135 us*/
+#define OTGCSR_IDFT_LONG    (1 << 9)  /* ID noise filter = 4 ms*/
+#define OTGCSR_IDFT         (0 << 9)  /* ID noise filter = 3 ms*/
+#define OTGCSR_A_SRPR_VBUS  (0 << 8)  /* A-device: SRP responds to VBUS */
+#define OTGCSR_A_SRPR_DATA  (1 << 8)  /* A-device: SRP responds to DATA-LINE */
+#define OTGCSR_A_SRP_EN     (1 << 7)  /* A-device SRP detection enabled */
+#define OTGCSR_A_HNP        (1 << 6)  /* Set role=A-device with HNP enabled */
+#define OTGCSR_A_BUSDROP    (1 << 5)  /* A-device drop bus (power-down) */
+#define OTGCSR_A_BUSREQ     (1 << 4)  /* A-device request bus */
+#define OTGCSR_B_VBUS_DISC  (1 << 2)  /* B-device discharges VBUS */
+#define OTGCSR_B_HNP        (1 << 1)  /* B-device enable HNP */
+#define OTGCSR_B_BUSREQ     (1 << 0)  /* B-device request bus */
+
+/* OTG Interrupt Status Register */
+#define OTGISR_APRM         (1 << 12) /* Mini-A plug removed */
+#define OTGISR_BPRM         (1 << 11) /* Mini-B plug removed */
+#define OTGISR_OVD          (1 << 10) /* over-current detected */
+#define OTGISR_IDCHG        (1 << 9)  /* ID(A/B) changed */
+#define OTGISR_RLCHG        (1 << 8)  /* Role(Host/Device) changed */
+#define OTGISR_BSESSEND     (1 << 6)  /* B-device Session End */
+#define OTGISR_AVBUSERR     (1 << 5)  /* A-device VBUS Error */
+#define OTGISR_ASRP         (1 << 4)  /* A-device SRP detected */
+#define OTGISR_BSRP         (1 << 0)  /* B-device SRP complete */
+
+/* OTG Interrupt Enable Register */
+#define OTGIER_APRM         (1 << 12) /* Mini-A plug removed */
+#define OTGIER_BPRM         (1 << 11) /* Mini-B plug removed */
+#define OTGIER_OVD          (1 << 10) /* over-current detected */
+#define OTGIER_IDCHG        (1 << 9)  /* ID(A/B) changed */
+#define OTGIER_RLCHG        (1 << 8)  /* Role(Host/Device) changed */
+#define OTGIER_BSESSEND     (1 << 6)  /* B-device Session End */
+#define OTGIER_AVBUSERR     (1 << 5)  /* A-device VBUS Error */
+#define OTGIER_ASRP         (1 << 4)  /* A-device SRP detected */
+#define OTGIER_BSRP         (1 << 0)  /* B-device SRP complete */
+
+/* Global Interrupt Status Register */
+#define ISR_HOST            (1 << 2)  /* USB Host interrupt */
+#define ISR_OTG             (1 << 1)  /* USB OTG interrupt */
+#define ISR_DEV             (1 << 0)  /* USB Device interrupt */
+
+/* Global Interrupt Mask Register */
+#define IMR_IRQLH           (1 << 3)  /* Interrupt triggered at level-high */
+#define IMR_IRQLL           (0 << 3)  /* Interrupt triggered@level-low */
+#define IMR_HOST            (1 << 2)  /* USB Host interrupt */
+#define IMR_OTG             (1 << 1)  /* USB OTG interrupt */
+#define IMR_DEV             (1 << 0)  /* USB Device interrupt */
+
+/* Device Control Register */
+#define DEVCTRL_FS_FORCED   (1 << 9)  /* Forced to be Full-Speed Mode */
+#define DEVCTRL_HS          (1 << 6)  /* High Speed Mode */
+#define DEVCTRL_FS          (0 << 6)  /* Full Speed Mode */
+#define DEVCTRL_EN          (1 << 5)  /* Chip Enable */
+#define DEVCTRL_RESET       (1 << 4)  /* Chip Software Reset */
+#define DEVCTRL_SUSPEND     (1 << 3)  /* Enter Suspend Mode */
+#define DEVCTRL_GIRQ_EN     (1 << 2)  /* Global Interrupt Enabled */
+#define DEVCTRL_HALFSPD     (1 << 1)  /* Half speed mode for FPGA test */
+#define DEVCTRL_RWAKEUP     (1 << 0)  /* Enable remote wake-up */
+
+/* Device Address Register */
+#define DEVADDR_CONF        (1 << 7)  /* SET_CONFIGURATION has been executed */
+#define DEVADDR_ADDR(x)     ((x) & 0x7f)
+#define DEVADDR_ADDR_MASK   0x7f
+
+/* Device Test Register */
+#define DEVTEST_NOSOF       (1 << 6)  /* Do not generate SOF */
+#define DEVTEST_TST_MODE    (1 << 5)  /* Enter Test Mode */
+#define DEVTEST_TST_NOTS    (1 << 4)  /* Do not toggle sequence */
+#define DEVTEST_TST_NOCRC   (1 << 3)  /* Do not append CRC */
+#define DEVTEST_TST_CLREA   (1 << 2)  /* Clear External Side Address */
+#define DEVTEST_TST_CXLP    (1 << 1)  /* EP0 loopback test */
+#define DEVTEST_TST_CLRFF   (1 << 0)  /* Clear FIFO */
+
+/* SOF Frame Number Register */
+#define SOFFNR_UFN(x)       (((x) >> 11) & 0x7) /* SOF Micro-Frame Number */
+#define SOFFNR_FNR(x)       ((x) & 0x7ff) /* SOF Frame Number */
+
+/* SOF Mask Timer Register */
+#define SOFMTR_TMR(x)       ((x) & 0xffff)
+
+/* PHY Test Mode Selector Register */
+#define PHYTMSR_TST_PKT     (1 << 4) /* Packet send test */
+#define PHYTMSR_TST_SE0NAK  (1 << 3) /* High-Speed quiescent state */
+#define PHYTMSR_TST_KSTA    (1 << 2) /* High-Speed K state */
+#define PHYTMSR_TST_JSTA    (1 << 1) /* High-Speed J state */
+#define PHYTMSR_UNPLUG      (1 << 0) /* Enable soft-detachment */
+
+/* CX FIFO Register */
+#define CXFIFO_BYTES(x)     (((x) >> 24) & 0x7f) /* CX/EP0 FIFO byte count */
+#define CXFIFO_FIFOE(x)     (1 << (((x) & 0x03) + 8)) /* EPx FIFO empty */
+#define CXFIFO_FIFOE_FIFO0  (1 << 8)
+#define CXFIFO_FIFOE_FIFO1  (1 << 9)
+#define CXFIFO_FIFOE_FIFO2  (1 << 10)
+#define CXFIFO_FIFOE_FIFO3  (1 << 11)
+#define CXFIFO_FIFOE_MASK   (0x0f << 8)
+#define CXFIFO_CXFIFOE      (1 << 5) /* CX FIFO empty */
+#define CXFIFO_CXFIFOF      (1 << 4) /* CX FIFO full */
+#define CXFIFO_CXFIFOCLR    (1 << 3) /* CX FIFO clear */
+#define CXFIFO_CXSTALL      (1 << 2) /* CX Stall */
+#define CXFIFO_TSTPKTFIN    (1 << 1) /* Test packet data transfer finished */
+#define CXFIFO_CXFIN        (1 << 0) /* CX data transfer finished */
+
+/* IDLE Counter Register */
+#define IDLE_MS(x)          ((x) & 0x07) /* PHY suspend delay = x ms */
+
+/* Group Interrupt Mask(Disable) Register */
+#define GIMR_GRP2           (1 << 2) /* Disable interrupt group 2 */
+#define GIMR_GRP1           (1 << 1) /* Disable interrupt group 1 */
+#define GIMR_GRP0           (1 << 0) /* Disable interrupt group 0 */
+
+/* Group Interrupt Mask(Disable) Register 0 (CX) */
+#define GIMR0_CXABORT       (1 << 5) /* CX command abort interrupt */
+#define GIMR0_CXERR         (1 << 4) /* CX command error interrupt */
+#define GIMR0_CXEND         (1 << 3) /* CX command end interrupt */
+#define GIMR0_CXOUT         (1 << 2) /* EP0-OUT packet interrupt */
+#define GIMR0_CXIN          (1 << 1) /* EP0-IN packet interrupt */
+#define GIMR0_CXSETUP       (1 << 0) /* EP0-SETUP packet interrupt */
+
+/* Group Interrupt Mask(Disable) Register 1 (FIFO) */
+#define GIMR1_FIFO_IN(x)    (1 << (((x) & 3) + 16))    /* FIFOx IN */
+#define GIMR1_FIFO_TX(x)    GIMR1_FIFO_IN(x)
+#define GIMR1_FIFO_OUT(x)   (1 << (((x) & 3) * 2))     /* FIFOx OUT */
+#define GIMR1_FIFO_SPK(x)   (1 << (((x) & 3) * 2 + 1)) /* FIFOx SHORT PACKET */
+#define GIMR1_FIFO_RX(x)    (GIMR1_FIFO_OUT(x) | GIMR1_FIFO_SPK(x))
+
+/* Group Interrupt Mask(Disable) Register 2 (Device) */
+#define GIMR2_WAKEUP        (1 << 10) /* Device waked up */
+#define GIMR2_IDLE          (1 << 9)  /* Device idle */
+#define GIMR2_DMAERR        (1 << 8)  /* DMA error */
+#define GIMR2_DMAFIN        (1 << 7)  /* DMA finished */
+#define GIMR2_ZLPRX         (1 << 6)  /* Zero-Length-Packet Rx Interrupt */
+#define GIMR2_ZLPTX         (1 << 5)  /* Zero-Length-Packet Tx Interrupt */
+#define GIMR2_ISOCABT       (1 << 4)  /* ISOC Abort Interrupt */
+#define GIMR2_ISOCERR       (1 << 3)  /* ISOC Error Interrupt */
+#define GIMR2_RESUME        (1 << 2)  /* Resume state change Interrupt */
+#define GIMR2_SUSPEND       (1 << 1)  /* Suspend state change Interrupt */
+#define GIMR2_RESET         (1 << 0)  /* Reset Interrupt */
+
+/* Group Interrupt Status Register */
+#define GISR_GRP2           (1 << 2) /* Disable interrupt group 2 */
+#define GISR_GRP1           (1 << 1) /* Disable interrupt group 1 */
+#define GISR_GRP0           (1 << 0) /* Disable interrupt group 0 */
+
+/* Group Interrupt Status Register 0 (CX) */
+#define GISR0_CXABORT       (1 << 5) /* CX command abort interrupt */
+#define GISR0_CXERR         (1 << 4) /* CX command error interrupt */
+#define GISR0_CXEND         (1 << 3) /* CX command end interrupt */
+#define GISR0_CXOUT         (1 << 2) /* EP0-OUT packet interrupt */
+#define GISR0_CXIN          (1 << 1) /* EP0-IN packet interrupt */
+#define GISR0_CXSETUP       (1 << 0) /* EP0-SETUP packet interrupt */
+
+/* Group Interrupt Status Register 1 (FIFO) */
+#define GISR1_IN_FIFO(x)    (1 << (((x) & 0x03) + 16))    /* FIFOx IN */
+#define GISR1_OUT_FIFO(x)   (1 << (((x) & 0x03) * 2))     /* FIFOx OUT */
+#define GISR1_SPK_FIFO(x)   (1 << (((x) & 0x03) * 2 + 1)) /* FIFOx SPK */
+#define GISR1_RX_FIFO(x)    (3 << (((x) & 0x03) * 2))     /* FIFOx OUT/SPK */
+
+/* Group Interrupt Status Register 2 (Device) */
+#define GISR2_WAKEUP        (1 << 10) /* Device waked up */
+#define GISR2_IDLE          (1 << 9)  /* Device idle */
+#define GISR2_DMAERR        (1 << 8)  /* DMA error */
+#define GISR2_DMAFIN        (1 << 7)  /* DMA finished */
+#define GISR2_ZLPRX         (1 << 6)  /* Zero-Length-Packet Rx Interrupt */
+#define GISR2_ZLPTX         (1 << 5)  /* Zero-Length-Packet Tx Interrupt */
+#define GISR2_ISOCABT       (1 << 4)  /* ISOC Abort Interrupt */
+#define GISR2_ISOCERR       (1 << 3)  /* ISOC Error Interrupt */
+#define GISR2_RESUME        (1 << 2)  /* Resume state change Interrupt */
+#define GISR2_SUSPEND       (1 << 1)  /* Suspend state change Interrupt */
+#define GISR2_RESET         (1 << 0)  /* Reset Interrupt */
+
+/* Receive Zero-Length-Packet Register */
+#define RXZLP_EP(x)         (1 << ((x) - 1)) /* EPx ZLP rx interrupt */
+
+/* Transfer Zero-Length-Packet Register */
+#define TXZLP_EP(x)         (1 << ((x) - 1)) /* EPx ZLP tx interrupt */
+
+/* ISOC Error/Abort Status Register */
+#define ISOEASR_EP(x)       (0x10001 << ((x) - 1)) /* EPx ISOC Error/Abort */
+
+/* IN Endpoint Register */
+#define IEP_SENDZLP         (1 << 15)     /* Send Zero-Length-Packet */
+#define IEP_TNRHB(x)        (((x) & 0x03) << 13) \
+	/* Transaction Number for High-Bandwidth EP(ISOC) */
+#define IEP_RESET           (1 << 12)     /* Reset Toggle Sequence */
+#define IEP_STALL           (1 << 11)     /* Stall */
+#define IEP_MAXPS(x)        ((x) & 0x7ff) /* Max. packet size */
+
+/* OUT Endpoint Register */
+#define OEP_RESET           (1 << 12)     /* Reset Toggle Sequence */
+#define OEP_STALL           (1 << 11)     /* Stall */
+#define OEP_MAXPS(x)        ((x) & 0x7ff) /* Max. packet size */
+
+/* Endpoint Map Register (EP1 ~ EP4) */
+#define EPMAP14_SET_IN(ep, fifo) \
+	((fifo) & 3) << (((ep) - 1) << 3 + 0)
+#define EPMAP14_SET_OUT(ep, fifo) \
+	((fifo) & 3) << (((ep) - 1) << 3 + 4)
+#define EPMAP14_SET(ep, in, out) \
+	do { \
+		EPMAP14_SET_IN(ep, in); \
+		EPMAP14_SET_OUT(ep, out); \
+	} while (0)
+
+#define EPMAP14_DEFAULT     0x33221100 /* EP1->FIFO0, EP2->FIFO1... */
+
+/* Endpoint Map Register (EP5 ~ EP8) */
+#define EPMAP58_SET_IN(ep, fifo) \
+	((fifo) & 3) << (((ep) - 5) << 3 + 0)
+#define EPMAP58_SET_OUT(ep, fifo) \
+	((fifo) & 3) << (((ep) - 5) << 3 + 4)
+#define EPMAP58_SET(ep, in, out) \
+	do { \
+		EPMAP58_SET_IN(ep, in); \
+		EPMAP58_SET_OUT(ep, out); \
+	} while (0)
+
+#define EPMAP58_DEFAULT     0x00000000 /* All EPx->FIFO0 */
+
+/* FIFO Map Register */
+#define FIFOMAP_BIDIR       (2 << 4)
+#define FIFOMAP_IN          (1 << 4)
+#define FIFOMAP_OUT         (0 << 4)
+#define FIFOMAP_DIR_MASK    0x30
+#define FIFOMAP_EP(x)       ((x) & 0x0f)
+#define FIFOMAP_EP_MASK     0x0f
+#define FIFOMAP_CFG_MASK    0x3f
+#define FIFOMAP_DEFAULT     0x04030201 /* FIFO0->EP1, FIFO1->EP2... */
+#define FIFOMAP(fifo, cfg)  (((cfg) & 0x3f) << (((fifo) & 3) << 3))
+
+/* FIFO Configuration Register */
+#define FIFOCFG_EN          (1 << 5)
+#define FIFOCFG_BLKSZ_1024  (1 << 4)
+#define FIFOCFG_BLKSZ_512   (0 << 4)
+#define FIFOCFG_3BLK        (2 << 2)
+#define FIFOCFG_2BLK        (1 << 2)
+#define FIFOCFG_1BLK        (0 << 2)
+#define FIFOCFG_NBLK_MASK   3
+#define FIFOCFG_NBLK_SHIFT  2
+#define FIFOCFG_INTR        (3 << 0)
+#define FIFOCFG_BULK        (2 << 0)
+#define FIFOCFG_ISOC        (1 << 0)
+#define FIFOCFG_RSVD        (0 << 0)  /* Reserved */
+#define FIFOCFG_TYPE_MASK   3
+#define FIFOCFG_TYPE_SHIFT  0
+#define FIFOCFG_CFG_MASK    0x3f
+#define FIFOCFG(fifo, cfg)  (((cfg) & 0x3f) << (((fifo) & 3) << 3))
+
+/* FIFO Control Status Register */
+#define FIFOCSR_RESET       (1 << 12) /* FIFO Reset */
+#define FIFOCSR_BYTES(x)    ((x) & 0x7ff) /* Length(bytes) for OUT-EP/FIFO */
+
+/* DMA Target FIFO Register */
+#define DMAFIFO_CX          (1 << 4) /* DMA FIFO = CX FIFO */
+#define DMAFIFO_FIFO(x)     (1 << ((x) & 0x3)) /* DMA FIFO = FIFOx */
+
+/* DMA Control Register */
+#define DMACTRL_LEN(x)      (((x) & 0x1ffff) << 8) /* DMA length (Bytes) */
+#define DMACTRL_LEN_SHIFT   8
+#define DMACTRL_CLRFF       (1 << 4) /* Clear FIFO upon DMA abort */
+#define DMACTRL_ABORT       (1 << 3) /* DMA abort */
+#define DMACTRL_IO2IO       (1 << 2) /* IO to IO */
+#define DMACTRL_FIFO2MEM    (0 << 1) /* FIFO to Memory */
+#define DMACTRL_MEM2FIFO    (1 << 1) /* Memory to FIFO */
+#define DMACTRL_START       (1 << 0) /* DMA start */
+
+#endif
diff --git a/include/usb/fusbh200.h b/include/usb/fusbh200.h
new file mode 100644
index 0000000..8a9c488
--- /dev/null
+++ b/include/usb/fusbh200.h
@@ -0,0 +1,61 @@
+/*
+ * Faraday USB 2.0 EHCI Controller
+ *
+ * (C) Copyright 2010 Faraday Technology
+ * Dante Su <dantesu@faraday-tech.com>
+ *
+ * This file is released under the terms of GPL v2 and any later version.
+ * See the file COPYING in the root directory of the source tree for details.
+ */
+
+#ifndef _FUSBH200_H
+#define _FUSBH200_H
+
+struct fusbh200_regs {
+	struct {
+		uint32_t data[4];
+	} hccr;			/* 0x00 - 0x0f: hccr */
+	struct {
+		uint32_t data[9];
+	} hcor;			/* 0x10 - 0x33: hcor */
+	uint32_t easstr;/* 0x34: EOF&Async. Sched. Sleep Timer Register */
+	uint32_t rsvd[2];
+	uint32_t bmcsr;	/* 0x40: Bus Monitor Control Status Register */
+	uint32_t bmisr;	/* 0x44: Bus Monitor Interrupt Status Register */
+	uint32_t bmier; /* 0x48: Bus Monitor Interrupt Enable Register */
+};
+
+/* EOF & Async. Schedule Sleep Timer Register */
+#define EASSTR_RUNNING  (1 << 6) /* Put transceiver in running/resume mode */
+#define EASSTR_SUSPEND  (0 << 6) /* Put transceiver in suspend mode */
+#define EASSTR_EOF2(x)  (((x) & 0x3) << 4) /* EOF 2 Timing */
+#define EASSTR_EOF1(x)  (((x) & 0x3) << 2) /* EOF 1 Timing */
+#define EASSTR_ASST(x)  (((x) & 0x3) << 0) /* Async. Sched. Sleep Timer */
+
+/* Bus Monitor Control Status Register */
+#define BMCSR_SPD_HIGH  (2 << 9) /* Speed of the attached device */
+#define BMCSR_SPD_LOW   (1 << 9)
+#define BMCSR_SPD_FULL  (0 << 9)
+#define BMCSR_SPD_MASK  (3 << 9)
+#define BMCSR_SPD_SHIFT 9
+#define BMCSR_SPD(x)    ((x >> 9) & 0x03)
+#define BMCSR_VBUS      (1 << 8) /* VBUS Valid */
+#define BMCSR_VBUS_OFF  (1 << 4) /* VBUS Off */
+#define BMCSR_VBUS_ON   (0 << 4) /* VBUS On */
+#define BMCSR_IRQLH     (1 << 3) /* IRQ triggered at level-high */
+#define BMCSR_IRQLL     (0 << 3) /* IRQ triggered@level-low */
+#define BMCSR_HALFSPD   (1 << 2) /* Half speed mode for FPGA test */
+#define BMCSR_HFT_LONG  (1 << 1) /* HDISCON noise filter = 270 us*/
+#define BMCSR_HFT       (0 << 1) /* HDISCON noise filter = 135 us*/
+#define BMCSR_VFT_LONG  (1 << 1) /* VBUS noise filter = 472 us*/
+#define BMCSR_VFT       (0 << 1) /* VBUS noise filter = 135 us*/
+
+/* Bus Monitor Interrupt Status Register */
+/* Bus Monitor Interrupt Enable Register */
+#define BMISR_DMAERR    (1 << 4) /* DMA error */
+#define BMISR_DMA       (1 << 3) /* DMA complete */
+#define BMISR_DEVRM     (1 << 2) /* device removed */
+#define BMISR_OVD       (1 << 1) /* over-current detected */
+#define BMISR_VBUSERR   (1 << 0) /* VBUS error */
+
+#endif
--
1.7.9.5