[PATCH 9/9] Add Synopsys DesignWare HS USB OTG Controller driver.
Fushen Chen
fchen at apm.com
Wed Jun 30 07:27:02 EST 2010
Interfaces with the DWC HS OTG core by reading from and writing to
the Control and Status Register (CSR).
CSRs are classified as follows:
- Core Global Registers
- Device Mode Registers
- Device Global Registers
- Device Endpoint Specific Registers
- Host Mode Registers
- Host Global Registers
- Host Port CSRs
- Host Channel Specific Registers
Signed-off-by: Fushen Chen <fchen at apm.com>
Signed-off-by: Mark Miesfeld <mmiesfeld at apm.com>
---
drivers/usb/otg/dwc_otg_regs.h | 3283 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 3283 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/otg/dwc_otg_regs.h
diff --git a/drivers/usb/otg/dwc_otg_regs.h b/drivers/usb/otg/dwc_otg_regs.h
new file mode 100644
index 0000000..413ee9d
--- /dev/null
+++ b/drivers/usb/otg/dwc_otg_regs.h
@@ -0,0 +1,3283 @@
+/*
+ * DesignWare HS OTG controller driver
+ *
+ * Author: Mark Miesfeld <mmiesfeld at apm.com>
+ *
+ * Based on versions provided by AMCC and Synopsis which are:
+ * Copyright (C) 2009-2010 AppliedMicro(www.apm.com)
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __DWC_OTG_REGS_H__
+#define __DWC_OTG_REGS_H__
+
+#include <linux/types.h>
+
+/*
+ * This file contains the data structures for accessing the DWC_otg core
+ * registers.
+ *
+ * The application interfaces with the HS OTG core by reading from and
+ * writing to the Control and Status Register (CSR) space through the
+ * AHB Slave interface. These registers are 32 bits wide, and the
+ * addresses are 32-bit-block aligned.
+ * CSRs are classified as follows:
+ * - Core Global Registers
+ * - Device Mode Registers
+ * - Device Global Registers
+ * - Device Endpoint Specific Registers
+ * - Host Mode Registers
+ * - Host Global Registers
+ * - Host Port CSRs
+ * - Host Channel Specific Registers
+ *
+ * Only the Core Global registers can be accessed in both Device and
+ * Host modes. When the HS OTG core is operating in one mode, either
+ * Device or Host, the application must not access registers from the
+ * other mode. When the core switches from one mode to another, the
+ * registers in the new mode of operation must be reprogrammed as they
+ * would be after a power-on reset.
+ */
+
+/*
+ * DWC_otg Core registers. The core_global_regs structure defines the
+ * size and relative field offsets for the Core Global registers.
+ */
+struct core_global_regs {
+ /* OTG Control and Status Register. Offset: 000h */
+ u32 gotgctl;
+ /* OTG Interrupt Register. Offset: 004h */
+ u32 gotgint;
+ /* Core AHB Configuration Register. Offset: 008h */
+ u32 gahbcfg;
+
+#define DWC_GLBINTRMASK 0x0001
+#define DWC_DMAENABLE 0x0020
+#define DWC_NPTXEMPTYLVL_EMPTY 0x0080
+#define DWC_NPTXEMPTYLVL_HALFEMPTY 0x0000
+#define DWC_PTXEMPTYLVL_EMPTY 0x0100
+#define DWC_PTXEMPTYLVL_HALFEMPTY 0x0000
+
+ /* Core USB Configuration Register. Offset: 00Ch */
+ u32 gusbcfg;
+ /* Core Reset Register. Offset: 010h */
+ u32 grstctl;
+ /* Core Interrupt Register. Offset: 014h */
+ u32 gintsts;
+ /* Core Interrupt Mask Register. Offset: 018h */
+ u32 gintmsk;
+ /*
+ * Receive Status Queue Read Register
+ * (Read Only) Offset: 01Ch
+ */
+ u32 grxstsr;
+ /*
+ * Receive Status Queue Read & POP Register
+ * (Read Only) Offset: 020h
+ */
+ u32 grxstsp;
+ /* Receive FIFO Size Register. Offset: 024h */
+ u32 grxfsiz;
+ /* Non Periodic Transmit FIFO Size Register. Offset: 028h */
+ u32 gnptxfsiz;
+ /*
+ * Non Periodic Transmit FIFO/Queue Status Register
+ * (Read Only). Offset: 02Ch
+ */
+ u32 gnptxsts;
+ /* I2C Access Register. Offset: 030h */
+ u32 gi2cctl;
+ /* PHY Vendor Control Register. Offset: 034h */
+ u32 gpvndctl;
+ /* General Purpose Input/Output Register. Offset: 038h */
+ u32 ggpio;
+ /* User ID Register. Offset: 03Ch */
+ u32 guid;
+ /* Synopsys ID Register (Read Only). Offset: 040h */
+ u32 gsnpsid;
+ /* User HW Config1 Register (Read Only). Offset: 044h */
+ u32 ghwcfg1;
+ /* User HW Config2 Register (Read Only). Offset: 048h */
+ u32 ghwcfg2;
+#define DWC_SLAVE_ONLY_ARCH 0
+#define DWC_EXT_DMA_ARCH 1
+#define DWC_INT_DMA_ARCH 2
+
+#define DWC_MODE_HNP_SRP_CAPABLE 0
+#define DWC_MODE_SRP_ONLY_CAPABLE 1
+#define DWC_MODE_NO_HNP_SRP_CAPABLE 2
+#define DWC_MODE_SRP_CAPABLE_DEVICE 3
+#define DWC_MODE_NO_SRP_CAPABLE_DEVICE 4
+#define DWC_MODE_SRP_CAPABLE_HOST 5
+#define DWC_MODE_NO_SRP_CAPABLE_HOST 6
+
+ /* User HW Config3 Register (Read Only). Offset: 04Ch */
+ u32 ghwcfg3;
+ /* User HW Config4 Register (Read Only). Offset: 050h */
+ u32 ghwcfg4;
+ /* Reserved Offset: 054h-0FFh */
+ u32 reserved[43];
+ /* Host Periodic Transmit FIFO Size Register. Offset: 100h */
+ u32 hptxfsiz;
+
+ /*
+ * Device Periodic Transmit FIFO#n Register, if dedicated fifos are
+ * disabled. Otherwise Device Transmit FIFO#n Register.
+ *
+ * Offset: 104h + (FIFO_Number-1)*04h, 1 <= FIFO Number <= 15 (1<=n<=15)
+ */
+ u32 dptxfsiz_dieptxf[15];
+};
+
+
+#if defined(CONFIG_DWC_OTG_REG_LE)
+/*
+ * This union represents the bit fields of the Core OTG Controland Status
+ * Register (GOTGCTL). Set the bits using the bit fields then write the d32
+ * value to the register.
+ */
+union gotgctl_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31_21:11;
+ unsigned currmod:1;
+ unsigned bsesvld:1;
+ unsigned asesvld:1;
+ unsigned reserved17:1;
+ unsigned conidsts:1;
+ unsigned reserved1_12:4;
+ unsigned devhnpen:1;
+ unsigned hstsethnpen:1;
+ unsigned hnpreq:1;
+ unsigned hstnegscs:1;
+ unsigned reserved07_02:6;
+ unsigned sesreq:1;
+ unsigned sesreqscs:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core OTG Interrupt Register
+ * (GOTGINT). Set/clear the bits using the bit fields then write the d32
+ * value to the register.
+ */
+union gotgint_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* Current Mode */
+ unsigned reserved31_20:12;
+ /* Debounce Done */
+ unsigned debdone:1;
+ /* A-Device Timeout Change */
+ unsigned adevtoutchng:1;
+ /* Host Negotiation Detected */
+ unsigned hstnegdet:1;
+ unsigned reserver16_10:7;
+ /* Host Negotiation Success Status Change */
+ unsigned hstnegsucstschng:1;
+ /* Session Request Success Status Change */
+ unsigned sesreqsucstschng:1;
+ unsigned reserved3_7:5;
+ /* Session End Detected */
+ unsigned sesenddet:1;
+ unsigned reserved01_00:2;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core AHB Configuration Register
+ * (GAHBCFG). Set/clear the bits using the bit fields then write the d32 value
+ * to the register.
+ */
+union gahbcfg_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved9_31:23;
+ unsigned ptxfemplvl:1;
+#define DWC_GAHBCFG_TXFEMPTYLVL_EMPTY 1
+#define DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY 0
+
+ unsigned nptxfemplvl_txfemplvl:1;
+ unsigned reserved:1;
+ unsigned dmaenable:1;
+#define DWC_GAHBCFG_DMAENABLE 1
+
+ unsigned hburstlen:4;
+#define DWC_GAHBCFG_INT_DMA_BURST_SINGLE 0
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR 1
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR4 3
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR8 5
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR16 7
+
+ unsigned glblintrmsk:1;
+#define DWC_GAHBCFG_GLBINT_ENABLE 1
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core USB Configuration Register
+ * (GUSBCFG). Set the bits using the bit fields then write the d32 value to the
+ * register.
+ */
+union gusbcfg_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned corrupt_tx_packet:1;
+ unsigned force_device_mode:1;
+ unsigned force_host_mode:1;
+ unsigned reserved23_28:6;
+ unsigned term_sel_dl_pulse:1;
+ unsigned ulpi_int_vbus_indicator:1;
+ unsigned ulpi_ext_vbus_drv:1;
+ unsigned ulpi_clk_sus_m:1;
+ unsigned ulpi_auto_res:1;
+ unsigned ulpi_fsls:1;
+
+ unsigned otgutmifssel:1;
+ unsigned phylpwrclksel:1;
+ unsigned nptxfrwnden:1;
+ unsigned usbtrdtim:4;
+ unsigned hnpcap:1;
+ unsigned srpcap:1;
+ unsigned ddrsel:1;
+ unsigned physel:1;
+ unsigned fsintf:1;
+ unsigned ulpi_utmi_sel:1;
+ unsigned phyif:1;
+ unsigned toutcal:3;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core Reset Register (GRSTCTL).
+ * Set/clear the bits using the bit fields then write the d32 value to the
+ * register.
+ */
+union grstctl_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /*
+ * AHB Master Idle. Indicates the AHB Master State Machine is
+ * in IDLE condition.
+ */
+ unsigned ahbidle:1;
+
+ /*
+ * DMA Request Signal. Indicated DMA request is in probress.
+ Used for debug purpose.
+ */
+ unsigned dmareq:1;
+
+ /* Reserved */
+ unsigned reserved29_11:19;
+
+ /*
+ * TxFIFO Number (TxFNum) (Device and Host).
+ *
+ * This is the FIFO number which needs to be flushed,
+ * using the TxFIFO Flush bit. This field should not
+ * be changed until the TxFIFO Flush bit is cleared by
+ * the core.
+ * - 0x0:Non Periodic TxFIFO Flush
+ * - 0x1 : Periodic TxFIFO #1 Flush in device mode
+ * or Periodic TxFIFO in host mode
+ * - 0x2 : Periodic TxFIFO #2 Flush in device mode.
+ * - ...
+ * - 0xF : Periodic TxFIFO #15 Flush in device mode
+ * - 0x10: Flush all the Transmit NonPeriodic and
+ * Transmit Periodic FIFOs in the core
+ */
+ unsigned txfnum:5;
+#define DWC_GRSTCTL_TXFNUM_ALL 0x10
+
+ /*
+ * TxFIFO Flush (TxFFlsh) (Device and Host).
+ *
+ * This bit is used to selectively flush a single or all
+ * transmit FIFOs. The application must first ensure that the
+ * core is not in the middle of a transaction.
+ *
+ * The application should write into this bit, only after
+ * making sure that neither the DMA engine is writing into the
+ * TxFIFO nor the MAC is reading the data out of the FIFO.
+ *
+ * The application should wait until the core clears this bit,
+ * before performing any operations. This bit will takes 8
+ * clocks (slowest of PHY or AHB clock) to clear.
+ */
+ unsigned txfflsh:1;
+
+ /*
+ * RxFIFO Flush (RxFFlsh) (Device and Host)
+ *
+ * The application can flush the entire Receive FIFO using this
+ * bit.
+ *
+ * The application must first ensure that the core is not in the
+ * middle of a transaction.
+ *
+ * The application should write into this bit, only after making
+ * sure that neither the DMA engine is reading from the RxFIFO
+ * nor the MAC is writing the data in to the FIFO.
+ *
+ * The application should wait until the bit is cleared before
+ * performing any other operations. This bit will takes 8 clocks
+ * (slowest of PHY or AHB clock) to clear.
+ */
+ unsigned rxfflsh:1;
+
+ /*
+ * In Token Sequence Learning Queue Flush
+ * (INTknQFlsh) (Device Only)
+ */
+ unsigned intknqflsh:1;
+
+ /*
+ * Host Frame Counter Reset (Host Only)<br>
+ *
+ * The application can reset the (micro)frame number
+ * counter inside the core, using this bit. When the
+ * (micro)frame counter is reset, the subsequent SOF
+ * sent out by the core, will have a (micro)frame
+ * number of 0.
+ */
+ unsigned hstfrm:1;
+
+ /*
+ * Hclk Soft Reset
+ *
+ * The application uses this bit to reset the control logic in
+ * the AHB clock domain. Only AHB clock domain pipelines are
+ * reset.
+ */
+ unsigned hsftrst:1;
+
+ /*
+ * Core Soft Reset (CSftRst) (Device and Host)
+ *
+ * The application can flush the control logic in the
+ * entire core using this bit. This bit resets the
+ * pipelines in the AHB Clock domain as well as the
+ * PHY Clock domain.
+ *
+ * The state machines are reset to an IDLE state, the
+ * control bits in the CSRs are cleared, all the
+ * transmit FIFOs and the receive FIFO are flushed.
+ *
+ * The status mask bits that control the generation of
+ * the interrupt, are cleared, to clear the
+ * interrupt. The interrupt status bits are not
+ * cleared, so the application can get the status of
+ * any events that occurred in the core after it has
+ * set this bit.
+ *
+ * Any transactions on the AHB are terminated as soon
+ * as possible following the protocol. Any
+ * transactions on the USB are terminated immediately.
+ *
+ * The configuration settings in the CSRs are
+ * unchanged, so the software doesn't have to
+ * reprogram these registers (Device
+ * Configuration/Host Configuration/Core System
+ * Configuration/Core PHY Configuration).
+ *
+ * The application can write to this bit, any time it
+ * wants to reset the core. This is a self clearing
+ * bit and the core clears this bit after all the
+ * necessary logic is reset in the core, which may
+ * take several clocks, depending on the current state
+ * of the core.
+ */
+ unsigned csftrst:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core Interrupt Mask Register
+ * (GINTMSK). Set/clear the bits using the bit fields then write the d32 value
+ * to the register.
+ */
+union gintmsk_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned wkupintr:1;
+ unsigned sessreqintr:1;
+ unsigned disconnect:1;
+ unsigned conidstschng:1;
+ unsigned reserved27:1;
+ unsigned ptxfempty:1;
+ unsigned hcintr:1;
+ unsigned portintr:1;
+ unsigned reserved23_22:2;
+ unsigned incomplisoout:1;
+ unsigned incomplisoin:1;
+ unsigned outepintr:1;
+ unsigned inepintr:1;
+ unsigned epmismatch:1;
+ unsigned reserved16:1;
+ unsigned eopframe:1;
+ unsigned isooutdrop:1;
+ unsigned enumdone:1;
+ unsigned usbreset:1;
+ unsigned usbsuspend:1;
+ unsigned erlysuspend:1;
+ unsigned i2cintr:1;
+ unsigned reserved08:1;
+ unsigned goutnakeff:1;
+ unsigned ginnakeff:1;
+ unsigned nptxfempty:1;
+ unsigned rxstsqlvl:1;
+ unsigned sofintr:1;
+ unsigned otgintr:1;
+ unsigned modemismatch:1;
+ unsigned reserved00:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core Interrupt Register
+ * (GINTSTS). Set/clear the bits using the bit fields then write the d32 value
+ * to the register.
+ */
+union gintsts_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+#define DWC_SOF_INTR_MASK 0x0008
+ struct {
+#define DWC_HOST_MODE 1
+ unsigned wkupintr:1;
+ unsigned sessreqintr:1;
+ unsigned disconnect:1;
+ unsigned conidstschng:1;
+ unsigned reserved27:1;
+ unsigned ptxfempty:1;
+ unsigned hcintr:1;
+ unsigned portintr:1;
+ unsigned reserved22_23:2;
+ unsigned incomplisoout:1;
+ unsigned incomplisoin:1;
+ unsigned outepintr:1;
+ unsigned inepint:1;
+ unsigned epmismatch:1;
+ unsigned intokenrx:1;
+ unsigned eopframe:1;
+ unsigned isooutdrop:1;
+ unsigned enumdone:1;
+ unsigned usbreset:1;
+ unsigned usbsuspend:1;
+ unsigned erlysuspend:1;
+ unsigned i2cintr:1;
+ unsigned reserved8:1;
+ unsigned goutnakeff:1;
+ unsigned ginnakeff:1;
+ unsigned nptxfempty:1;
+ unsigned rxstsqlvl:1;
+ unsigned sofintr:1;
+ unsigned otgintr:1;
+ unsigned modemismatch:1;
+ unsigned curmode:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device Receive Status Read and
+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the d32
+ * element then read out the bits using the bit elements.
+ */
+union device_grxsts_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved:7;
+ unsigned fn:4;
+ unsigned pktsts:4;
+#define DWC_STS_DATA_UPDT 0x2 /* OUT Data Packet */
+#define DWC_STS_XFER_COMP 0x3 /* OUT Data Transfer Complete */
+#define DWC_DSTS_GOUT_NAK 0x1 /* Global OUT NAK */
+#define DWC_DSTS_SETUP_COMP 0x4 /* Setup Phase Complete */
+#define DWC_DSTS_SETUP_UPDT 0x6 /* SETUP Packet */
+
+ unsigned dpid:2;
+ unsigned bcnt:11;
+ unsigned epnum:4;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Receive Status Read and
+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the d32
+ * element then read out the bits using the bit elements.
+ */
+union host_grxsts_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31_21:11;
+ unsigned pktsts:4;
+#define DWC_GRXSTS_PKTSTS_IN 0x2
+#define DWC_GRXSTS_PKTSTS_IN_XFER_COMP 0x3
+#define DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR 0x5
+#define DWC_GRXSTS_PKTSTS_CH_HALTED 0x7
+
+ unsigned dpid:2;
+ unsigned bcnt:11;
+ unsigned chnum:4;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the FIFO Size Registers (HPTXFSIZ,
+ * GNPTXFSIZ, DPTXFSIZn). Read the register into the d32 element then
+ * read out the bits using the bit elements.
+ */
+union fifosize_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned depth:16;
+ unsigned startaddr:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Non-Periodic Transmit FIFO/Queue
+ * Status Register (GNPTXSTS). Read the register into the d32 element then read
+ * out the bits using the bit elements.
+ */
+union gnptxsts_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved:1;
+ /* Top of the Non-Periodic Transmit Request Queue
+ * - bits 30:27 - Channel/EP Number
+ * - bits 26:25 - Token Type
+ * - 2'b00 - IN/OUT
+ * - 2'b01 - Zero Length OUT
+ * - 2'b10 - PING/Complete Split
+ * - 2'b11 - Channel Halt
+ * - bit 24 - Terminate (Last entry for the selected
+ * channel/EP)
+ */
+ unsigned nptxqtop_chnep:4;
+ unsigned nptxqtop_token:2;
+ unsigned nptxqtop_terminate:1;
+ unsigned nptxqspcavail:8;
+ unsigned nptxfspcavail:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Transmit FIFO Status Register
+ * (DTXFSTS). Read the register into the d32 element then read out the bits
+ * using the bit elements.
+ */
+union dtxfsts_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved:16;
+ unsigned txfspcavail:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the I2C Control Register (I2CCTL).
+ * Read the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union gi2cctl_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned bsydne:1;
+ unsigned rw:1;
+ unsigned reserved:2;
+ unsigned i2cdevaddr:2;
+ unsigned i2csuspctl:1;
+ unsigned ack:1;
+ unsigned i2cen:1;
+ unsigned addr:7;
+ unsigned regaddr:8;
+ unsigned rwdata:8;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config1 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg1_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned ep_dir15:2;
+ unsigned ep_dir14:2;
+ unsigned ep_dir13:2;
+ unsigned ep_dir12:2;
+ unsigned ep_dir11:2;
+ unsigned ep_dir10:2;
+ unsigned ep_dir9:2;
+ unsigned ep_dir8:2;
+ unsigned ep_dir7:2;
+ unsigned ep_dir6:2;
+ unsigned ep_dir5:2;
+ unsigned ep_dir4:2;
+ unsigned ep_dir3:2;
+ unsigned ep_dir2:2;
+ unsigned ep_dir1:2;
+ unsigned ep_dir0:2;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config2 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg2_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* GHWCFG2 */
+ unsigned reserved31:1;
+ unsigned dev_token_q_depth:5;
+ unsigned host_perio_tx_q_depth:2;
+ unsigned nonperio_tx_q_depth:2;
+ unsigned rx_status_q_depth:2;
+ unsigned dynamic_fifo:1;
+ unsigned perio_ep_supported:1;
+ unsigned num_host_chan:4;
+ unsigned num_dev_ep:4;
+ unsigned fs_phy_type:2;
+ unsigned hs_phy_type:2;
+#define DWC_HWCFG2_HS_PHY_TYPE_NOT_SUPPORTED 0
+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI 1
+#define DWC_HWCFG2_HS_PHY_TYPE_ULPI 2
+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI 3
+
+ unsigned point2point:1;
+ unsigned architecture:2;
+ unsigned op_mode:3;
+#define DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG 0
+#define DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG 1
+#define DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG 2
+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE 3
+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE 4
+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST 5
+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST 6
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config3 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg3_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* GHWCFG3 */
+ unsigned dfifo_depth:16;
+ unsigned reserved15_13:3;
+ unsigned ahb_phy_clock_synch:1;
+ unsigned synch_reset_type:1;
+ unsigned optional_features:1;
+ unsigned vendor_ctrl_if:1;
+ unsigned i2c:1;
+ unsigned otg_func:1;
+ unsigned packet_size_cntr_width:3;
+ unsigned xfer_size_cntr_width:4;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config4 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg4_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31_30:2;
+ unsigned num_in_eps:4;
+ unsigned ded_fifo_en:1;
+
+ unsigned session_end_filt_en:1;
+ unsigned b_valid_filt_en:1;
+ unsigned a_valid_filt_en:1;
+ unsigned vbus_valid_filt_en:1;
+ unsigned iddig_filt_en:1;
+ unsigned num_dev_mode_ctrl_ep:4;
+ unsigned utmi_phy_data_width:2;
+ unsigned min_ahb_freq:9;
+ unsigned power_optimiz:1;
+ unsigned num_dev_perio_in_ep:4;
+ } b;
+};
+
+/*
+ * Device Global Registers. Offsets 800h-BFFh
+ *
+ * The following structures define the size and relative field offsets for the
+ * Device Mode Registers.
+ *
+ * These registers are visible only in Device mode and must not be accessed in
+ * Host mode, as the results are unknown.
+ */
+struct device_global_regs { /* CONFIG_DWC_OTG_REG_LE */
+ /* Device Configuration Register. Offset: 800h */
+ u32 dcfg;
+ /* Device Control Register. Offset: 804h */
+ u32 dctl;
+ /* Device Status Register (Read Only). Offset: 808h */
+ u32 dsts;
+ /* Reserved. Offset: 80Ch */
+ u32 unused;
+ /* Device IN Endpoint Common Interrupt Mask Register. Offset: 810h */
+ u32 diepmsk;
+ /* Device OUT Endpoint Common Interrupt Mask Register. Offset: 814h */
+ u32 doepmsk;
+ /* Device All Endpoints Interrupt Register. Offset: 818h */
+ u32 daint;
+ /* Device All Endpoints Interrupt Mask Register. Offset: 81Ch */
+ u32 daintmsk;
+ /* Device IN Token Queue Read Register-1 (Read Only). Offset: 820h */
+ u32 dtknqr1;
+ /* Device IN Token Queue Read Register-2 (Read Only). Offset: 824h */
+ u32 dtknqr2;
+ /* Device VBUS discharge Register. Offset: 828h */
+ u32 dvbusdis;
+ /* Device VBUS Pulse Register. Offset: 82Ch */
+ u32 dvbuspulse;
+ /* Device IN Token Queue Read Register-3 (Read Only). Offset: 830h */
+ u32 dtknqr3_dthrctl;
+ /* Device IN Token Queue Read Register-4 (Read Only). Offset: 834h */
+ u32 dtknqr4_fifoemptymsk;
+};
+
+/*
+ * This union represents the bit fields in the Device Configuration
+ * Register. Read the register into the d32 member then
+ * set/clear the bits using the bit elements. Write the
+ * d32 member to the dcfg register.
+ */
+union dcfg_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved0_8:9;
+ unsigned epmscnt:5;
+ /* In Endpoint Mis-match count */
+ unsigned reserved17_13:5;
+ /* Periodic Frame Interval */
+ unsigned perfrint:2;
+#define DWC_DCFG_FRAME_INTERVAL_80 0
+#define DWC_DCFG_FRAME_INTERVAL_85 1
+#define DWC_DCFG_FRAME_INTERVAL_90 2
+#define DWC_DCFG_FRAME_INTERVAL_95 3
+
+ /* Device Addresses */
+ unsigned devaddr:7;
+ unsigned reserved3:1;
+ /* Non Zero Length Status OUT Handshake */
+ unsigned nzstsouthshk:1;
+#define DWC_DCFG_SEND_STALL 1
+
+ /* Device Speed */
+ unsigned devspd:2;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device Control Register. Read
+ * the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union dctl_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31_12:21;
+ /* Clear Global OUT NAK */
+ unsigned cgoutnak:1;
+ /* Set Global OUT NAK */
+ unsigned sgoutnak:1;
+ /* Clear Global Non-Periodic IN NAK */
+ unsigned cgnpinnak:1;
+ /* Set Global Non-Periodic IN NAK */
+ unsigned sgnpinnak:1;
+ /* Test Control */
+ unsigned tstctl:3;
+ /* Global OUT NAK Status */
+ unsigned goutnaksts:1;
+ /* Global Non-Periodic IN NAK Status */
+ unsigned gnpinnaksts:1;
+ /* Soft Disconnect */
+ unsigned sftdiscon:1;
+ /* Remote Wakeup */
+ unsigned rmtwkupsig:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device Status Register. Read the
+ * register into the d32 member then set/clear the bits using the bit elements.
+ */
+union dsts_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31_22:10;
+ /* Frame or Microframe Number of the received SOF */
+ unsigned soffn:14;
+ unsigned reserved07_04:4;
+ /* Erratic Error */
+ unsigned errticerr:1;
+ /* Enumerated Speed */
+ unsigned enumspd:2;
+#define DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ 0
+#define DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ 1
+#define DWC_DSTS_ENUMSPD_LS_PHY_6MHZ 2
+#define DWC_DSTS_ENUMSPD_FS_PHY_48MHZ 3
+ /* Suspend Status */
+ unsigned suspsts:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device IN EP Interrupt Register
+ * and the Device IN EP Common Mask Register.
+ *
+ * Read the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union diepint_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31_08:23;
+ unsigned txfifoundrn:1;
+ /* IN Endpoint HAK Effective mask */
+ unsigned emptyintr:1;
+ /* IN Endpoint NAK Effective mask */
+ unsigned inepnakeff:1;
+ /* IN Token Received with EP mismatch mask */
+ unsigned intknepmis:1;
+ /* IN Token received with TxF Empty mask */
+ unsigned intktxfemp:1;
+ /* TimeOUT Handshake mask (non-ISOC EPs) */
+ unsigned timeout:1;
+ /* AHB Error mask */
+ unsigned ahberr:1;
+ /* Endpoint disable mask */
+ unsigned epdisabled:1;
+ /* Transfer complete mask */
+ unsigned xfercompl:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device OUT EP Interrupt Register
+ * and Device OUT EP Common Interrupt Mask Register.
+ *
+ * Read the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union doepint_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31_04:28; /* Docs say reserved is 27 bits */
+
+ /* There is 1 bit missing here, not used? */
+
+ /* Setup Phase Done (control EPs) */
+ unsigned setup:1;
+ /* AHB Error */
+ unsigned ahberr:1;
+ /* Endpoint disable */
+ unsigned epdisabled:1;
+ /* Transfer complete */
+ unsigned xfercompl:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device All EP Interrupt and Mask
+ * Registers. Read the register into the d32 member then set/clear the bits
+ * using the bit elements.
+ */
+union daint_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* OUT Endpoint bits */
+ unsigned out:16;
+ /* IN Endpoint bits */
+ unsigned in:16;
+ } ep;
+ struct {
+ /* OUT Endpoint bits */
+ unsigned outep15:1;
+ unsigned outep14:1;
+ unsigned outep13:1;
+ unsigned outep12:1;
+ unsigned outep11:1;
+ unsigned outep10:1;
+ unsigned outep9:1;
+ unsigned outep8:1;
+ unsigned outep7:1;
+ unsigned outep6:1;
+ unsigned outep5:1;
+ unsigned outep4:1;
+ unsigned outep3:1;
+ unsigned outep2:1;
+ unsigned outep1:1;
+ unsigned outep0:1;
+ /* IN Endpoint bits */
+ unsigned inep15:1;
+ unsigned inep14:1;
+ unsigned inep13:1;
+ unsigned inep12:1;
+ unsigned inep11:1;
+ unsigned inep10:1;
+ unsigned inep9:1;
+ unsigned inep8:1;
+ unsigned inep7:1;
+ unsigned inep6:1;
+ unsigned inep5:1;
+ unsigned inep4:1;
+ unsigned inep3:1;
+ unsigned inep2:1;
+ unsigned inep1:1;
+ unsigned inep0:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device IN Token Queue Read
+ * Registers. Read the register into the d32 member. READ-ONLY Register
+ */
+union dtknq1_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* EP Numbers of IN Tokens 0 ... 4 */
+ unsigned epnums0_5:24;
+ /* write pointer has wrapped. */
+ unsigned wrap_bit:1;
+ /* Reserved */
+ unsigned reserved05_06:2;
+ /* In Token Queue Write Pointer */
+ unsigned intknwptr:5;
+ } b;
+};
+
+/*
+ * This union represents Threshold control Register. Read and write the register
+ * into the d32 member. READ-WRITABLE Register
+ */
+union dthrctl_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* Reserved */
+ unsigned reserved26_31:6;
+ /* Rx Thr. Length */
+ unsigned rx_thr_len:9;
+ /* Rx Thr. Enable */
+ unsigned rx_thr_en:1;
+ /* Reserved */
+ unsigned reserved11_15:5;
+ /* Tx Thr. Length */
+ unsigned tx_thr_len:9;
+ /* ISO Tx Thr. Enable */
+ unsigned iso_thr_en:1;
+ /* non ISO Tx Thr. Enable */
+ unsigned non_iso_thr_en:1;
+ } b;
+};
+
+/*
+ * Device Logical IN Endpoint-Specific Registers. Offsets 900h-AFCh
+ *
+ * There will be one set of endpoint registers per logical endpoint implemented.
+ *
+ * These registers are visible only in Device mode and must not be accessed in
+ * Host mode, as the results are unknown.
+ */
+ struct device_in_ep_regs {
+ /*
+ * Device IN Endpoint Control Register.
+ * Offset:900h + (ep_num * 20h) + 00h
+ */
+ u32 diepctl;
+ /* Reserved. Offset:900h + (ep_num * 20h) + 04h */
+ u32 reserved04;
+ /*
+ * Device IN Endpoint Interrupt Register.
+ * Offset:900h + (ep_num * 20h) + 08h
+ */
+ u32 diepint;
+ /* Reserved. Offset:900h + (ep_num * 20h) + 0Ch */
+ u32 reserved0C;
+ /* Device IN Endpoint Transfer Size Register.
+ * Offset:900h + (ep_num * 20h) + 10h
+ */
+ u32 dieptsiz;
+ /*
+ * Device IN Endpoint DMA Address Register.
+ * Offset:900h + (ep_num * 20h) + 14h
+ */
+ u32 diepdma;
+ /* Reserved.
+ * Offset:900h + (ep_num * 20h) + 18h - 900h + (ep_num * 20h) + 1Ch
+ */
+ u32 dtxfsts;
+ /*
+ * Reserved.
+ * Offset:900h + (ep_num * 20h) + 1Ch - 900h + (ep_num * 20h) + 1Ch
+ */
+ u32 reserved18;
+};
+
+/*
+ * Device Logical OUT Endpoint-Specific Registers. Offsets: B00h-CFCh
+ *
+ * There will be one set of endpoint registers per logical endpoint implemented.
+ *
+ * These registers are visible only in Device mode and must not be accessed in
+ * Host mode, as the results are unknown.
+ */
+struct device_out_ep_regs {
+ /*
+ * Device OUT Endpoint Control Register.
+ * Offset:B00h + (ep_num * 20h) + 00h
+ */
+ u32 doepctl;
+ /*
+ * Device OUT Endpoint Frame number Register.
+ * Offset: B00h + (ep_num * 20h) + 04h
+ */
+ u32 doepfn;
+ /*
+ * Device OUT Endpoint Interrupt Register.
+ * Offset:B00h + (ep_num * 20h) + 08h
+ */
+ u32 doepint;
+ /* Reserved. Offset:B00h + (ep_num * 20h) + 0Ch */
+ u32 reserved0C;
+ /*
+ * Device OUT Endpoint Transfer Size Register.
+ * Offset: B00h + (ep_num * 20h) + 10h
+ */
+ u32 doeptsiz;
+ /*
+ * Device OUT Endpoint DMA Address Register.
+ * Offset:B00h + (ep_num * 20h) + 14h
+ */
+ u32 doepdma;
+ /*
+ * Reserved.
+ * Offset:B00h + (ep_num * 20h) + 18h - B00h + (ep_num * 20h) + 1Ch
+ */
+ u32 unused[2];
+};
+
+/*
+ * This union represents the bit fields in the Device EP Control Register. Read
+ * the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union depctl_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* Endpoint Enable */
+ unsigned epena:1;
+ /* Endpoint Disable */
+ unsigned epdis:1;
+
+ /*
+ * Set DATA1 PID (INTR/Bulk IN and OUT endpoints) Writing to
+ * this field sets the Endpoint DPID (DPID) field in this
+ * register to DATA1 Set Odd (micro)frame (SetOddFr) (ISO IN and
+ * OUT Endpoints) Writing to this field sets the Even/Odd
+ * (micro)frame (EO_FrNum) field to odd (micro) frame.
+ */
+ unsigned setd1pid:1;
+ /*
+ * Set DATA0 PID (INTR/Bulk IN and OUT endpoints) Writing to
+ * this field sets the Endpoint DPID (DPID) field in this
+ * register to DATA0. Set Even (micro)frame (SetEvenFr) (ISO IN
+ * and OUT Endpoints) Writing to this field sets the Even/Odd
+ * (micro)frame (EO_FrNum) field to even (micro) frame.
+ */
+ unsigned setd0pid:1;
+
+ /* Set NAK */
+ unsigned snak:1;
+ /* Clear NAK */
+ unsigned cnak:1;
+
+ /*
+ * Tx Fifo Number
+ * IN EPn/IN EP0
+ * OUT EPn/OUT EP0 - reserved
+ */
+ unsigned txfnum:4;
+
+ /* Stall Handshake */
+ unsigned stall:1;
+
+ /* Snoop Mode
+ * OUT EPn/OUT EP0
+ * IN EPn/IN EP0 - reserved
+ */
+ unsigned snp:1;
+
+ /* Endpoint Type
+ * 2'b00: Control
+ * 2'b01: Isochronous
+ * 2'b10: Bulk
+ * 2'b11: Interrupt
+ */
+ unsigned eptype:2;
+
+ /* NAK Status */
+ unsigned naksts:1;
+
+ /*
+ * Endpoint DPID (INTR/Bulk IN and OUT endpoints) This field
+ * contains the PID of the packet going to be received or
+ * transmitted on this endpoint. The application should program
+ * the PID of the first packet going to be received or
+ * transmitted on this endpoint, after the endpoint is
+ * activated. Applications use the SetD1PID and SetD0PID fields
+ * of this register to program either D0 or D1 PID.
+ *
+ * The encoding for this field is
+ * - 0: D0
+ * - 1: D1
+ */
+ unsigned dpid:1;
+
+ /* USB Active Endpoint */
+ unsigned usbactep:1;
+
+ /*
+ * Next Endpoint
+ * IN EPn/IN EP0
+ * OUT EPn/OUT EP0 - reserved
+ */
+ unsigned nextep:4;
+
+ /*
+ * Maximum Packet Size
+ * IN/OUT EPn
+ * IN/OUT EP0 - 2 bits
+ * 2'b00: 64 Bytes
+ * 2'b01: 32
+ * 2'b10: 16
+ * 2'b11: 8
+ */
+ unsigned mps:11;
+#define DWC_DEP0CTL_MPS_64 0
+#define DWC_DEP0CTL_MPS_32 1
+#define DWC_DEP0CTL_MPS_16 2
+#define DWC_DEP0CTL_MPS_8 3
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device EP Transfer Size Register.
+ * Read the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union deptsiz_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+
+ /*
+ * Added-sr: 2007-07-26
+ *
+ * Correct ther register layout for the 405EZ Ultra
+ * USB device implementation.
+ */
+#ifdef CONFIG_DWC_LIMITED_XFER_SIZE
+ struct {
+ unsigned reserved:1;
+ /* Multi Count - Periodic IN endpoints */
+ unsigned mc:2;
+ unsigned reserved1:5;
+ /* Packet Count */
+ unsigned pktcnt:5;
+ unsigned reserved2:8;
+ /* Transfer size */
+ unsigned xfersize:11;
+ } b;
+#else
+ struct {
+ unsigned reserved:1;
+ /* Multi Count - Periodic IN endpoints */
+ unsigned mc:2;
+ /* Packet Count */
+ unsigned pktcnt:10;
+ /* Transfer size */
+ unsigned xfersize:19;
+ } b;
+#endif
+};
+
+/*
+ * This union represents the bit fields in the Device EP 0 Transfer Size
+ * Register. Read the register into the d32 member then set/clear the bits
+ * using the bit elements.
+ */
+union deptsiz0_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved31:1; /* device*/
+ /*Setup Packet Count (DOEPTSIZ0 Only) */
+ unsigned supcnt:2;
+ /* Reserved */
+ unsigned reserved28_20:9;
+ /* Packet Count */
+ unsigned pktcnt:1;
+ /* Reserved */
+ unsigned reserved18_7:12;
+ /* Transfer size */
+ unsigned xfersize:7;
+ } b;
+};
+
+#define MAX_PERIO_FIFOS 15 /* Max periodic FIFOs */
+#define MAX_TX_FIFOS 15 /* Max non-periodic FIFOs */
+
+/* Maximum number of Endpoints/HostChannels */
+#if defined(CONFIG_460EX)
+#define MAX_EPS_CHANNELS 12
+#else
+#define MAX_EPS_CHANNELS 4
+#endif
+
+/*
+ * The device_if structure contains information needed to manage the DWC_otg
+ * controller acting in device mode. It represents the programming view of the
+ * device-specific aspects of the controller.
+ */
+struct device_if {
+ /* Device Global Registers starting at offset 800h */
+ struct device_global_regs *dev_global_regs;
+#define DWC_DEV_GLOBAL_REG_OFFSET 0x800
+
+ /* Device Logical IN Endpoint-Specific Registers 900h-AFCh */
+ struct device_in_ep_regs *in_ep_regs[MAX_EPS_CHANNELS];
+#define DWC_DEV_IN_EP_REG_OFFSET 0x900
+#define DWC_EP_REG_OFFSET 0x20
+
+ /* Device Logical OUT Endpoint-Specific Registers B00h-CFCh */
+ struct device_out_ep_regs *out_ep_regs[MAX_EPS_CHANNELS];
+#define DWC_DEV_OUT_EP_REG_OFFSET 0xB00
+
+ /* Device configuration information */
+ /* Device Speed 0: Unknown, 1: LS, 2:FS, 3: HS */
+ u8 speed;
+ /* Number # of Tx EP range: 0-15 exept ep0 */
+ u8 num_in_eps;
+ /* Number # of Rx EP range: 0-15 exept ep 0*/
+ u8 num_out_eps;
+
+ /* Size of periodic FIFOs (Bytes) */
+ u16 perio_tx_fifo_size[MAX_PERIO_FIFOS];
+
+ /* Size of Tx FIFOs (Bytes) */
+ u16 tx_fifo_size[MAX_TX_FIFOS];
+
+ /* Thresholding enable flags and length varaiables */
+ u16 rx_thr_en;
+ u16 iso_tx_thr_en;
+ u16 non_iso_tx_thr_en;
+ u16 rx_thr_length;
+ u16 tx_thr_length;
+};
+
+/*
+ * This union represents the bit fields in the Power and Clock Gating Control
+ * Register. Read the register into the d32 member then set/clear the
+ * bits using the bit elements.
+ */
+union pcgcctl_data {
+ u32 d32;
+ struct {
+ unsigned reserved31_05:27;
+ /* PHY Suspended */
+ unsigned physuspended:1;
+ /* Reset Power Down Modules */
+ unsigned rstpdwnmodule:1;
+ /* Power Clamp */
+ unsigned pwrclmp:1;
+ /* Gate Hclk */
+ unsigned gatehclk:1;
+ /* Stop Pclk */
+ unsigned stoppclk:1;
+ } b;
+};
+
+/*
+ * Host Mode Register Structures
+ */
+
+/*
+ * The Host Global Registers structure defines the size and relative field
+ * offsets for the Host Mode Global Registers. Host Global Registers offsets
+ * 400h-7FFh.
+*/
+struct host_global_regs {
+ /* Host Configuration Register. Offset: 400h */
+ u32 hcfg;
+ /* Host Frame Interval Register. Offset: 404h */
+ u32 hfir;
+ /* Host Frame Number / Frame Remaining Register. Offset: 408h */
+ u32 hfnum;
+ /* Reserved. Offset: 40Ch */
+ u32 reserved40C;
+ /* Host Periodic Transmit FIFO/ Queue Status Register. Offset: 410h */
+ u32 hptxsts;
+ /* Host All Channels Interrupt Register. Offset: 414h */
+ u32 haint;
+ /* Host All Channels Interrupt Mask Register. Offset: 418h */
+ u32 haintmsk;
+};
+
+/*
+ * This union represents the bit fields in the Host Configuration Register. Read
+ * the register into the d32 member then set/clear the bits using the bit
+ * elements. Write the d32 member to the hcfg register.
+ */
+union hcfg_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+#define DWC_HCFG_30_60_MHZ 0
+#define DWC_HCFG_48_MHZ 1
+#define DWC_HCFG_6_MHZ 2
+ /* FS/LS Only Support */
+ unsigned fslssupp:1;
+ /* FS/LS Phy Clock Select */
+ unsigned fslspclksel:2;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Frame Remaing/Number
+ * Register.
+ */
+union hfir_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved:16;
+ unsigned frint:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Frame Remaing/Number
+ * Register.
+ */
+union hfnum_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+#define DWC_HFNUM_MAX_FRNUM 0x3FFF
+ unsigned frrem:16;
+ unsigned frnum:16;
+ } b;
+};
+
+union hptxsts_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned ptxqtop_odd:1;
+ unsigned ptxqtop_chnum:4;
+ unsigned ptxqtop_token:2;
+ unsigned ptxqtop_terminate:1;
+ unsigned ptxqspcavail:8;
+ unsigned ptxfspcavail:16;
+ /*
+ * Top of the Periodic Transmit Request Queue
+ * - bit 24 - Terminate (last entry for the selected channel)
+ * - bits 26:25 - Token Type
+ * - 2'b00 - Zero length
+ * - 2'b01 - Ping
+ * - 2'b10 - Disable
+ * - bits 30:27 - Channel Number
+ * - bit 31 - Odd/even microframe
+ */
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Port Control and Status
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hprt0 register.
+ */
+union hprt0_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+#define DWC_HPRT0_PRTSPD_HIGH_SPEED 0
+#define DWC_HPRT0_PRTSPD_FULL_SPEED 1
+#define DWC_HPRT0_PRTSPD_LOW_SPEED 2
+ unsigned reserved19_31:13;
+ unsigned prtspd:2;
+ unsigned prttstctl:4;
+ unsigned prtpwr:1;
+ unsigned prtlnsts:2;
+ unsigned reserved9:1;
+ unsigned prtrst:1;
+ unsigned prtsusp:1;
+ unsigned prtres:1;
+ unsigned prtovrcurrchng:1;
+ unsigned prtovrcurract:1;
+ unsigned prtenchng:1;
+ unsigned prtena:1;
+ unsigned prtconndet:1;
+ unsigned prtconnsts:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host All Interrupt Register.
+ */
+union haint_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved:16;
+ unsigned ch15:1;
+ unsigned ch14:1;
+ unsigned ch13:1;
+ unsigned ch12:1;
+ unsigned ch11:1;
+ unsigned ch10:1;
+ unsigned ch9:1;
+ unsigned ch8:1;
+ unsigned ch7:1;
+ unsigned ch6:1;
+ unsigned ch5:1;
+ unsigned ch4:1;
+ unsigned ch3:1;
+ unsigned ch2:1;
+ unsigned ch1:1;
+ unsigned ch0:1;
+ } b;
+ struct {
+ unsigned reserved:16;
+ unsigned chint:16;
+ } b2;
+};
+
+/*
+ * This union represents the bit fields in the Host All Interrupt Register.
+ */
+union haintmsk_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved:16;
+ unsigned ch15:1;
+ unsigned ch14:1;
+ unsigned ch13:1;
+ unsigned ch12:1;
+ unsigned ch11:1;
+ unsigned ch10:1;
+ unsigned ch9:1;
+ unsigned ch8:1;
+ unsigned ch7:1;
+ unsigned ch6:1;
+ unsigned ch5:1;
+ unsigned ch4:1;
+ unsigned ch3:1;
+ unsigned ch2:1;
+ unsigned ch1:1;
+ unsigned ch0:1;
+ } b;
+ struct {
+ unsigned reserved:16;
+ unsigned chint:16;
+ } b2;
+};
+
+/*
+ * Host Channel Specific Registers. 500h-5FCh
+ */
+struct dwc_hc_regs { /* CONFIG_DWC_OTG_REG_LE */
+ /*
+ * Host Channel 0 Characteristic Register.
+ * Offset: 500h + (chan_num * 20h) + 00h
+ */
+ u32 hcchar;
+ /*
+ * Host Channel 0 Split Control Register.
+ * Offset: 500h + (chan_num * 20h) + 04h
+ */
+ u32 hcsplt;
+ /*
+ * Host Channel 0 Interrupt Register.
+ * Offset: 500h + (chan_num * 20h) + 08h
+ */
+ u32 hcint;
+ /*
+ * Host Channel 0 Interrupt Mask Register.
+ * Offset: 500h + (chan_num * 20h) + 0Ch
+ */
+ u32 hcintmsk;
+ /*
+ * Host Channel 0 Transfer Size Register.
+ * Offset: 500h + (chan_num * 20h) + 10h
+ */
+ u32 hctsiz;
+ /*
+ * Host Channel 0 DMA Address Register.
+ * Offset: 500h + (chan_num * 20h) + 14h
+ */
+ u32 hcdma;
+ /*
+ * Reserved.
+ * Offset: 500h + (chan_num * 20h) + 18h - 500h + (chan_num * 20h) + 1Ch
+ */
+ u32 reserved[2];
+};
+
+/*
+ * This union represents the bit fields in the Host Channel Characteristics
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hcchar register.
+ */
+union hcchar_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* Channel enable */
+ unsigned chen:1;
+ /* Channel disable */
+ unsigned chdis:1;
+ /*
+ * Frame to transmit periodic transaction.
+ * 0: even, 1: odd
+ */
+ unsigned oddfrm:1;
+ /* Device address */
+ unsigned devaddr:7;
+ /* Packets per frame for periodic transfers. 0 is reserved. */
+ unsigned multicnt:2;
+ /* 0: Control, 1: Isoc, 2: Bulk, 3: Intr */
+ unsigned eptype:2;
+ /* 0: Full/high speed device, 1: Low speed device */
+ unsigned lspddev:1;
+ unsigned reserved:1;
+ /* 0: OUT, 1: IN */
+ unsigned epdir:1;
+ /* Endpoint number */
+ unsigned epnum:4;
+ /* Maximum packet size in bytes */
+ unsigned mps:11;
+ } b;
+};
+
+union hcsplt_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* Split Enble */
+ unsigned spltena:1;
+ /* Reserved */
+ unsigned reserved:14;
+ /* Do Complete Split */
+ unsigned compsplt:1;
+ /* Transaction Position */
+ unsigned xactpos:2;
+#define DWC_HCSPLIT_XACTPOS_MID 0
+#define DWC_HCSPLIT_XACTPOS_END 1
+#define DWC_HCSPLIT_XACTPOS_BEGIN 2
+#define DWC_HCSPLIT_XACTPOS_ALL 3
+
+ /* Hub Address */
+ unsigned hubaddr:7;
+ /* Port Address */
+ unsigned prtaddr:7;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host All Interrupt
+ * Register.
+ */
+union hcint_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ /* Reserved */
+ unsigned reserved:21;
+ /* Data Toggle Error */
+ unsigned datatglerr:1;
+ /* Frame Overrun */
+ unsigned frmovrun:1;
+ /* Babble Error */
+ unsigned bblerr:1;
+ /* Transaction Err */
+ unsigned xacterr:1;
+ /* NYET Response Received */
+ unsigned nyet:1;
+ /* ACK Response Received */
+ unsigned ack:1;
+ /* NAK Response Received */
+ unsigned nak:1;
+ /* STALL Response Received */
+ unsigned stall:1;
+ /* AHB Error */
+ unsigned ahberr:1;
+ /* Channel Halted */
+ unsigned chhltd:1;
+ /* Transfer Complete */
+ unsigned xfercomp:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Channel Transfer Size
+ * Register. Read the register into the d32 member then set/clear the bits
+ * using the bit elements. Write the d32 member to the hcchar register.
+ */
+union hctsiz_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+#define DWC_HCTSIZ_DATA0 0
+#define DWC_HCTSIZ_DATA1 2
+#define DWC_HCTSIZ_DATA2 1
+#define DWC_HCTSIZ_MDATA 3
+#define DWC_HCTSIZ_SETUP 3
+
+ /* Do PING protocol when 1 */
+ unsigned dopng:1;
+ /*
+ * Packet ID for next data packet
+ * 0: DATA0
+ * 1: DATA2
+ * 2: DATA1
+ * 3: MDATA (non-Control), SETUP (Control)
+ */
+ unsigned pid:2;
+ /* Data packets to transfer */
+ unsigned pktcnt:10;
+ /* Total transfer size in bytes */
+ unsigned xfersize:19;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Channel Interrupt Mask
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hcintmsk register.
+ */
+union hcintmsk_data { /* CONFIG_DWC_OTG_REG_LE */
+ u32 d32;
+ struct {
+ unsigned reserved:21;
+ unsigned datatglerr:1;
+ unsigned frmovrun:1;
+ unsigned bblerr:1;
+ unsigned xacterr:1;
+ unsigned nyet:1;
+ unsigned ack:1;
+ unsigned nak:1;
+ unsigned stall:1;
+ unsigned ahberr:1;
+ unsigned chhltd:1;
+ unsigned xfercompl:1;
+ } b;
+};
+
+/*
+ * OTG Host Interface Structure.
+ *
+ * The OTG Host Interface Structure structure contains information needed to
+ * manage the DWC_otg controller acting in host mode. It represents the
+ * programming view of the host-specific aspects of the controller.
+ */
+struct dwc_host_if { /* CONFIG_DWC_OTG_REG_LE */
+ /* Host Global Registers starting at offset 400h.*/
+ struct host_global_regs *host_global_regs;
+#define DWC_OTG_HOST_GLOBAL_REG_OFFSET 0x400
+
+ /* Host Port 0 Control and Status Register */
+ u32 *hprt0;
+#define DWC_OTG_HOST_PORT_REGS_OFFSET 0x440
+
+ /* Host Channel Specific Registers at offsets 500h-5FCh. */
+ struct dwc_hc_regs *hc_regs[MAX_EPS_CHANNELS];
+#define DWC_OTG_HOST_CHAN_REGS_OFFSET 0x500
+#define DWC_OTG_CHAN_REGS_OFFSET 0x20
+
+ /* Host configuration information */
+ /* Number of Host Channels (range: 1-16) */
+ u8 num_host_channels;
+ /* Periodic EPs supported (0: no, 1: yes) */
+ u8 perio_eps_supported;
+ /* Periodic Tx FIFO Size (Only 1 host periodic Tx FIFO) */
+ u16 perio_tx_fifo_size;
+};
+
+#else /* CONFIG_DWC_OTG_REG_LE not defined */
+
+/*
+ * This union represents the bit fields of the Core OTG Control
+ * and Status Register (GOTGCTL). Set the bits using the bit
+ * fields then write the d32 value to the register.
+ */
+union gotgctl_data {
+ u32 d32;
+ struct {
+ unsigned sesreqscs:1;
+ unsigned sesreq:1;
+ unsigned reserved2_7:6;
+ unsigned hstnegscs:1;
+ unsigned hnpreq:1;
+ unsigned hstsethnpen:1;
+ unsigned devhnpen:1;
+ unsigned reserved12_15:4;
+ unsigned conidsts:1;
+ unsigned reserved17:1;
+ unsigned asesvld:1;
+ unsigned bsesvld:1;
+ unsigned currmod:1;
+ unsigned reserved21_31:11;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core OTG Interrupt Register
+ * (GOTGINT). Set/clear the bits using the bit fields then write the d32
+ * value to the register.
+ */
+union gotgint_data {
+ u32 d32;
+ struct {
+ /* Current Mode */
+ unsigned reserved0_1:2;
+
+ /* Session End Detected */
+ unsigned sesenddet:1;
+
+ unsigned reserved3_7:5;
+
+ /* Session Request Success Status Change */
+ unsigned sesreqsucstschng:1;
+ /* Host Negotiation Success Status Change */
+ unsigned hstnegsucstschng:1;
+
+ unsigned reserver10_16:7;
+
+ /* Host Negotiation Detected */
+ unsigned hstnegdet:1;
+ /* A-Device Timeout Change */
+ unsigned adevtoutchng:1;
+ /* Debounce Done */
+ unsigned debdone:1;
+
+ unsigned reserved31_20:12;
+
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core AHB Configuration Register
+ * (GAHBCFG). Set/clear the bits using the bit fields then write the d32 value
+ * to the register.
+ */
+union gahbcfg_data {
+ u32 d32;
+ struct {
+ unsigned glblintrmsk:1;
+#define DWC_GAHBCFG_GLBINT_ENABLE 1
+
+ unsigned hburstlen:4;
+#define DWC_GAHBCFG_INT_DMA_BURST_SINGLE 0
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR 1
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR4 3
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR8 5
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR16 7
+
+ unsigned dmaenable:1;
+#define DWC_GAHBCFG_DMAENABLE 1
+ unsigned reserved:1;
+ unsigned nptxfemplvl_txfemplvl:1;
+ unsigned ptxfemplvl:1;
+#define DWC_GAHBCFG_TXFEMPTYLVL_EMPTY 1
+#define DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY 0
+ unsigned reserved9_31:23;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core USB Configuration Register
+ * (GUSBCFG). Set the bits using the bit fields then write the d32 value to
+ * the register.
+ */
+union gusbcfg_data {
+ u32 d32;
+ struct {
+ unsigned toutcal:3;
+ unsigned phyif:1;
+ unsigned ulpi_utmi_sel:1;
+ unsigned fsintf:1;
+ unsigned physel:1;
+ unsigned ddrsel:1;
+ unsigned srpcap:1;
+ unsigned hnpcap:1;
+ unsigned usbtrdtim:4;
+ unsigned nptxfrwnden:1;
+ unsigned phylpwrclksel:1;
+ unsigned otgutmifssel:1;
+ unsigned ulpi_fsls:1;
+ unsigned ulpi_auto_res:1;
+ unsigned ulpi_clk_sus_m:1;
+ unsigned ulpi_ext_vbus_drv:1;
+ unsigned ulpi_int_vbus_indicator:1;
+ unsigned term_sel_dl_pulse:1;
+ unsigned reserved23_28:6;
+ unsigned force_host_mode:1;
+ unsigned force_device_mode:1;
+ unsigned corrupt_tx_packet:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core Reset Register (GRSTCTL).
+ * Set/clear the bits using the bit fields then write the d32 value to the
+ * register.
+ */
+union grstctl_data {
+ u32 d32;
+ struct {
+ /*
+ * Core Soft Reset (CSftRst) (Device and Host)
+ *
+ * The application can flush the control logic in the entire
+ * core using this bit. This bit resets the pipelines in the AHB
+ * Clock domain as well as the PHY Clock domain.
+ *
+ * The state machines are reset to an IDLE state, the control
+ * bits in the CSRs are cleared, all the transmit FIFOs and the
+ * receive FIFO are flushed.
+ *
+ * The status mask bits that control the generation of the
+ * interrupt, are cleared, to clear the interrupt. The interrupt
+ * status bits are not cleared, so the application can get the
+ * status of any events that occurred in the core after it has
+ * set this bit.
+ *
+ * Any transactions on the AHB are terminated as soon as
+ * possible following the protocol. Any transactions on the USB
+ * are terminated immediately.
+ *
+ * The configuration settings in the CSRs are unchanged, so the
+ * software doesn't have to reprogram these registers (Device
+ * Configuration/Host Configuration/Core System
+ * Configuration/Core PHY Configuration).
+ *
+ * The application can write to this bit, any time it wants to
+ * reset the core. This is a self clearing bit and the core
+ * clears this bit after all the necessary logic is reset in the
+ * core, which may take several clocks, depending on the current
+ * state of the core.
+ */
+ unsigned csftrst:1;
+ /*
+ * Hclk Soft Reset
+ *
+ * The application uses this bit to reset the control logic in
+ * the AHB clock domain. Only AHB clock domain pipelines are
+ * reset.
+ */
+ unsigned hsftrst:1;
+ /*
+ * Host Frame Counter Reset (Host Only)<br>
+ *
+ * The application can reset the (micro)frame number counter
+ * inside the core, using this bit. When the (micro)frame
+ * counter is reset, the subsequent SOF sent out by the core,
+ * will have a (micro)frame number of 0.
+ */
+ unsigned hstfrm:1;
+ /*
+ * In Token Sequence Learning Queue Flush (INTknQFlsh) (Device
+ * Only)
+ */
+ unsigned intknqflsh:1;
+ /*
+ * RxFIFO Flush (RxFFlsh) (Device and Host)
+ *
+ * The application can flush the entire Receive FIFO using this
+ * bit.
+ *
+ * The application must first ensure that the core is not in the
+ * middle of a transaction.
+ *
+ * The application should write into this bit, only after making
+ * sure that neither the DMA engine is reading from the RxFIFO
+ * nor the MAC is writing the data in to the FIFO.
+ *
+ * The application should wait until the bit is cleared before
+ * performing any other operations. This bit will takes 8 clocks
+ * (slowest of PHY or AHB clock) to clear.
+ */
+ unsigned rxfflsh:1;
+ /*
+ * TxFIFO Flush (TxFFlsh) (Device and Host).
+ *
+ * This bit is used to selectively flush a single or all
+ * transmit FIFOs. The application must first ensure that the
+ * core is not in the middle of a transaction.
+ *
+ * The application should write into this bit, only after making
+ * sure that neither the DMA engine is writing into the TxFIFO
+ * nor the MAC is reading the data out of the FIFO.
+ *
+ * The application should wait until the core clears this bit,
+ * before performing any operations. This bit will takes 8
+ * clocks (slowest of PHY or AHB clock) to clear.
+ */
+ unsigned txfflsh:1;
+
+ /*
+ * TxFIFO Number (TxFNum) (Device and Host).
+ *
+ * This is the FIFO number which needs to be flushed, using the
+ * TxFIFO Flush bit. This field should not be changed until the
+ * TxFIFO Flush bit is cleared by the core.
+ * - 0x0 : Non Periodic TxFIFO Flush
+ * - 0x1 : Periodic TxFIFO #1 Flush in device mode
+ * or Periodic TxFIFO in host mode
+ * - 0x2 : Periodic TxFIFO #2 Flush in device mode.
+ * - ...
+ * - 0xF : Periodic TxFIFO #15 Flush in device mode
+ * - 0x10: Flush all the Transmit NonPeriodic and
+ * Transmit Periodic FIFOs in the core
+ */
+ unsigned txfnum:5;
+#define DWC_GRSTCTL_TXFNUM_ALL 0x10
+
+ /* Reserved */
+ unsigned reserved11_29:19;
+ /*
+ * DMA Request Signal. Indicated DMA request is in progress.
+ * Used for debug purpose.
+ */
+ unsigned dmareq:1;
+ /*
+ * AHB Master Idle. Indicates the AHB Master State Machine is
+ * in IDLE condition.
+ */
+ unsigned ahbidle:1;
+ } b;
+};
+
+
+/*
+ * This union represents the bit fields of the Core Interrupt Mask Register
+ * (GINTMSK). Set/clear the bits using the bit fields then write the d32 value
+ * to the register.
+ */
+union gintmsk_data {
+ u32 d32;
+ struct {
+ unsigned reserved0:1;
+ unsigned modemismatch:1;
+ unsigned otgintr:1;
+ unsigned sofintr:1;
+ unsigned rxstsqlvl:1;
+ unsigned nptxfempty:1;
+ unsigned ginnakeff:1;
+ unsigned goutnakeff:1;
+ unsigned reserved8:1;
+ unsigned i2cintr:1;
+ unsigned erlysuspend:1;
+ unsigned usbsuspend:1;
+ unsigned usbreset:1;
+ unsigned enumdone:1;
+ unsigned isooutdrop:1;
+ unsigned eopframe:1;
+ unsigned reserved16:1;
+ unsigned epmismatch:1;
+ unsigned inepintr:1;
+ unsigned outepintr:1;
+ unsigned incomplisoin:1;
+ unsigned incomplisoout:1;
+ unsigned reserved22_23:2;
+ unsigned portintr:1;
+ unsigned hcintr:1;
+ unsigned ptxfempty:1;
+ unsigned reserved27:1;
+ unsigned conidstschng:1;
+ unsigned disconnect:1;
+ unsigned sessreqintr:1;
+ unsigned wkupintr:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields of the Core Interrupt Register
+ * (GINTSTS). Set/clear the bits using the bit fields then write the d32 value
+ * to the register.
+ */
+union gintsts_data {
+ u32 d32;
+#define DWC_SOF_INTR_MASK 0x0008
+
+ struct {
+#define DWC_HOST_MODE 1
+ unsigned curmode:1;
+ unsigned modemismatch:1;
+ unsigned otgintr:1;
+ unsigned sofintr:1;
+ unsigned rxstsqlvl:1;
+ unsigned nptxfempty:1;
+ unsigned ginnakeff:1;
+ unsigned goutnakeff:1;
+ unsigned reserved8:1;
+ unsigned i2cintr:1;
+ unsigned erlysuspend:1;
+ unsigned usbsuspend:1;
+ unsigned usbreset:1;
+ unsigned enumdone:1;
+ unsigned isooutdrop:1;
+ unsigned eopframe:1;
+ unsigned intokenrx:1;
+ unsigned epmismatch:1;
+ unsigned inepint:1;
+ unsigned outepintr:1;
+ unsigned incomplisoin:1;
+ unsigned incomplisoout:1;
+ unsigned reserved22_23:2;
+ unsigned portintr:1;
+ unsigned hcintr:1;
+ unsigned ptxfempty:1;
+ unsigned reserved27:1;
+ unsigned conidstschng:1;
+ unsigned disconnect:1;
+ unsigned sessreqintr:1;
+ unsigned wkupintr:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device Receive Status Read and
+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the d32 element then
+ * read out the bits using the bit elements.
+ */
+union device_grxsts_data {
+ u32 d32;
+ struct {
+ unsigned epnum:4;
+ unsigned bcnt:11;
+ unsigned dpid:2;
+
+#define DWC_STS_DATA_UPDT 0x2 /* OUT Data Packet */
+#define DWC_STS_XFER_COMP 0x3 /* OUT Data Transfer Complete */
+#define DWC_DSTS_GOUT_NAK 0x1 /* Global OUT NAK */
+#define DWC_DSTS_SETUP_COMP 0x4 /* Setup Phase Complete */
+#define DWC_DSTS_SETUP_UPDT 0x6 /* SETUP Packet */
+ unsigned pktsts:4;
+ unsigned fn:4;
+ unsigned reserved:7;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Receive Status Read and
+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the d32 element then
+ * read out the bits using the bit elements.
+ */
+union host_grxsts_data {
+ u32 d32;
+ struct {
+ unsigned chnum:4;
+ unsigned bcnt:11;
+ unsigned dpid:2;
+
+ unsigned pktsts:4;
+#define DWC_GRXSTS_PKTSTS_IN 0x2
+#define DWC_GRXSTS_PKTSTS_IN_XFER_COMP 0x3
+#define DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR 0x5
+#define DWC_GRXSTS_PKTSTS_CH_HALTED 0x7
+
+ unsigned reserved:11;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the FIFO Size Registers (HPTXFSIZ,
+ * GNPTXFSIZ, DPTXFSIZn, DIEPTXFn). Read the register into the d32 element then
+ * read out the bits using the bit elements.
+ */
+union fifosize_data {
+ u32 d32;
+ struct {
+ unsigned startaddr:16;
+ unsigned depth:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Non-Periodic Transmit FIFO/Queue
+ * Status Register (GNPTXSTS). Read the register into the d32 element then read
+ * out the bits using the bit elements.
+ */
+union gnptxsts_data {
+ u32 d32;
+ struct {
+ unsigned nptxfspcavail:16;
+ unsigned nptxqspcavail:8;
+ /*
+ * Top of the Non-Periodic Transmit Request Queue
+ * - bit 24 - Terminate (Last entry for the selected
+ * channel/EP)
+ * - bits 26:25 - Token Type
+ * - 2'b00 - IN/OUT
+ * - 2'b01 - Zero Length OUT
+ * - 2'b10 - PING/Complete Split
+ * - 2'b11 - Channel Halt
+ * - bits 30:27 - Channel/EP Number
+ */
+ unsigned nptxqtop_terminate:1;
+ unsigned nptxqtop_token:2;
+ unsigned nptxqtop_chnep:4;
+ unsigned reserved:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Transmit FIFO Status Register
+ * (DTXFSTS). Read the register into the d32 element then read out the bits
+ * using the bit elements.
+ */
+union dtxfsts_data {
+ u32 d32;
+ struct {
+ unsigned txfspcavail:16;
+ unsigned reserved:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the I2C Control Register (I2CCTL).
+ * Read the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union gi2cctl_data {
+ u32 d32;
+ struct {
+ unsigned rwdata:8;
+ unsigned regaddr:8;
+ unsigned addr:7;
+ unsigned i2cen:1;
+ unsigned ack:1;
+ unsigned i2csuspctl:1;
+ unsigned i2cdevaddr:2;
+ unsigned reserved:2;
+ unsigned rw:1;
+ unsigned bsydne:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config1 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg1_data {
+ u32 d32;
+ struct {
+ unsigned ep_dir0:2;
+ unsigned ep_dir1:2;
+ unsigned ep_dir2:2;
+ unsigned ep_dir3:2;
+ unsigned ep_dir4:2;
+ unsigned ep_dir5:2;
+ unsigned ep_dir6:2;
+ unsigned ep_dir7:2;
+ unsigned ep_dir8:2;
+ unsigned ep_dir9:2;
+ unsigned ep_dir10:2;
+ unsigned ep_dir11:2;
+ unsigned ep_dir12:2;
+ unsigned ep_dir13:2;
+ unsigned ep_dir14:2;
+ unsigned ep_dir15:2;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config2 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg2_data {
+ u32 d32;
+ struct {
+ /* GHWCFG2 */
+ unsigned op_mode:3;
+#define DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG 0
+#define DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG 1
+#define DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG 2
+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE 3
+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE 4
+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST 5
+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST 6
+
+ unsigned architecture:2;
+ unsigned point2point:1;
+ unsigned hs_phy_type:2;
+#define DWC_HWCFG2_HS_PHY_TYPE_NOT_SUPPORTED 0
+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI 1
+#define DWC_HWCFG2_HS_PHY_TYPE_ULPI 2
+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI 3
+
+ unsigned fs_phy_type:2;
+ unsigned num_dev_ep:4;
+ unsigned num_host_chan:4;
+ unsigned perio_ep_supported:1;
+ unsigned dynamic_fifo:1;
+ unsigned rx_status_q_depth:2;
+ unsigned nonperio_tx_q_depth:2;
+ unsigned host_perio_tx_q_depth:2;
+ unsigned dev_token_q_depth:5;
+ unsigned reserved31:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config3 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg3_data {
+ u32 d32;
+ struct {
+ /* GHWCFG3 */
+ unsigned xfer_size_cntr_width:4;
+ unsigned packet_size_cntr_width:3;
+ unsigned otg_func:1;
+ unsigned i2c:1;
+ unsigned vendor_ctrl_if:1;
+ unsigned optional_features:1;
+ unsigned synch_reset_type:1;
+ unsigned reserved15_12:4;
+ unsigned dfifo_depth:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the User HW Config4 Register. Read
+ * the register into the d32 element then read out the bits using the bit
+ * elements.
+ */
+union hwcfg4_data {
+ u32 d32;
+ struct {
+ unsigned num_dev_perio_in_ep:4;
+ unsigned power_optimiz:1;
+ unsigned min_ahb_freq:9;
+ unsigned utmi_phy_data_width:2;
+ unsigned num_dev_mode_ctrl_ep:4;
+ unsigned iddig_filt_en:1;
+ unsigned vbus_valid_filt_en:1;
+ unsigned a_valid_filt_en:1;
+ unsigned b_valid_filt_en:1;
+ unsigned session_end_filt_en:1;
+ unsigned ded_fifo_en:1;
+ unsigned num_in_eps:4;
+ unsigned reserved31_30:2;
+ } b;
+};
+
+/*
+ * Device Global Registers. Offsets 800h-BFFh
+ *
+ * The following structures define the size and relative field offsets for the
+ * Device Mode Registers.
+ *
+ * These registers are visible only in Device mode and must not be accessed in
+ * Host mode, as the results are unknown.
+ */
+struct device_global_regs {
+ /* Device Configuration Register. Offset 800h */
+ u32 dcfg;
+ /* Device Control Register. Offset: 804h */
+ u32 dctl;
+ /* Device Status Register (Read Only). Offset: 808h */
+ u32 dsts;
+ /* Reserved. Offset: 80Ch */
+ u32 unused;
+ /* Device IN Endpoint Common Interrupt Mask Register. Offset: 810h */
+ u32 diepmsk;
+ /* Device OUT Endpoint Common Interrupt MaskRegister. Offset: 814h */
+ u32 doepmsk;
+ /* Device All Endpoints Interrupt Register. Offset: 818h */
+ u32 daint;
+ /* Device All Endpoints Interrupt Mask Register. Offset: 81Ch */
+ u32 daintmsk;
+ /* Device IN Token Queue Read Register-1 (Read Only). Offset: 820h */
+ u32 dtknqr1;
+ /* Device IN Token Queue Read Register-2 (Read Only). Offset: 824h */
+ u32 dtknqr2;
+ /* Device VBUS discharge Register. Offset: 828h */
+ u32 dvbusdis;
+ /* Device VBUS Pulse Register. Offset: 82Ch */
+ u32 dvbuspulse;
+ /*
+ * Device IN Token Queue Read Register-3 (Read Only).
+ * Device Thresholding control register (Read/Write)
+ * Offset: 830h
+ */
+ u32 dtknqr3_dthrctl;
+ /*
+ * Device IN Token Queue Read Register-4 (Read Only).
+ * Device IN EPs empty Inr. Mask Register (Read/Write)
+ * Offset: 834h
+ */
+ u32 dtknqr4_fifoemptymsk;
+};
+
+/*
+ * This union represents the bit fields in the Device Configuration Register.
+ * Read the register into the d32 member then set/clear the bits using the bit
+ * elements. Write the d32 member to the dcfg register.
+ */
+union dcfg_data {
+ u32 d32;
+ struct {
+ /* Device Speed */
+ unsigned devspd:2;
+ /* Non Zero Length Status OUT Handshake */
+ unsigned nzstsouthshk:1;
+#define DWC_DCFG_SEND_STALL 1
+
+ unsigned reserved3:1;
+ /* Device Addresses */
+ unsigned devaddr:7;
+ /* Periodic Frame Interval */
+ unsigned perfrint:2;
+#define DWC_DCFG_FRAME_INTERVAL_80 0
+#define DWC_DCFG_FRAME_INTERVAL_85 1
+#define DWC_DCFG_FRAME_INTERVAL_90 2
+#define DWC_DCFG_FRAME_INTERVAL_95 3
+
+ unsigned reserved13_17:5;
+ /* In Endpoint Mis-match count */
+ unsigned epmscnt:4;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device Control Register. Read
+ * the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union dctl_data {
+ u32 d32;
+ struct {
+ /* Remote Wakeup */
+ unsigned rmtwkupsig:1;
+ /* Soft Disconnect */
+ unsigned sftdiscon:1;
+ /* Global Non-Periodic IN NAK Status */
+ unsigned gnpinnaksts:1;
+ /* Global OUT NAK Status */
+ unsigned goutnaksts:1;
+ /* Test Control */
+ unsigned tstctl:3;
+ /* Set Global Non-Periodic IN NAK */
+ unsigned sgnpinnak:1;
+ /* Clear Global Non-Periodic IN NAK */
+ unsigned cgnpinnak:1;
+ /* Set Global OUT NAK */
+ unsigned sgoutnak:1;
+ /* Clear Global OUT NAK */
+ unsigned cgoutnak:1;
+ unsigned reserved:21;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device Status Register. Read the
+ * register into the d32 member then set/clear the bits using the bit elements.
+ */
+union dsts_data {
+ u32 d32;
+ struct {
+ /* Suspend Status */
+ unsigned suspsts:1;
+ /* Enumerated Speed */
+ unsigned enumspd:2;
+#define DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ 0
+#define DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ 1
+#define DWC_DSTS_ENUMSPD_LS_PHY_6MHZ 2
+#define DWC_DSTS_ENUMSPD_FS_PHY_48MHZ 3
+
+ /* Erratic Error */
+ unsigned errticerr:1;
+ unsigned reserved4_7:4;
+ /* Frame or Microframe Number of the received SOF */
+ unsigned soffn:14;
+ unsigned reserved22_31:10;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device IN EP Interrupt Register
+ * and the Device IN EP Common Mask Register. Read the register into the d32
+ * member then set/clear the bits using the bit elements.
+ */
+union diepint_data {
+ u32 d32;
+ struct {
+ /* Transfer complete mask */
+ unsigned xfercompl:1;
+ /* Endpoint disable mask */
+ unsigned epdisabled:1;
+ /* AHB Error mask */
+ unsigned ahberr:1;
+ /* TimeOUT Handshake mask (non-ISOC EPs) */
+ unsigned timeout:1;
+ /* IN Token received with TxF Empty mask */
+ unsigned intktxfemp:1;
+ /* IN Token Received with EP mismatch mask */
+ unsigned intknepmis:1;
+ /* IN Endpoint HAK Effective mask */
+ unsigned inepnakeff:1;
+ /* IN Endpoint HAK Effective mask */
+ unsigned emptyintr:1;
+ unsigned txfifoundrn:1;
+ unsigned reserved08_31:23;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device OUT EP Interrupt
+ * Registerand Device OUT EP Common Interrupt Mask Register. Read the register
+ * into the d32 member then set/clear the bits using the bit elements.
+ */
+union doepint_data {
+ u32 d32;
+ struct {
+ /* Transfer complete */
+ unsigned xfercompl:1;
+ /* Endpoint disable */
+ unsigned epdisabled:1;
+ /* AHB Error */
+ unsigned ahberr:1;
+ /* Setup Phase Done (contorl EPs) */
+ unsigned setup:1;
+ unsigned reserved04_31:28;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device All EP Interrupt and Mask
+ * Registers. Read the register into the d32 member then set/clear the bits
+ * using the bit elements.
+ */
+union daint_data {
+ u32 d32;
+ struct {
+ /* IN Endpoint bits */
+ unsigned in:16;
+ /* OUT Endpoint bits */
+ unsigned out:16;
+ } ep;
+ struct {
+ /* IN Endpoint bits */
+ unsigned inep0:1;
+ unsigned inep1:1;
+ unsigned inep2:1;
+ unsigned inep3:1;
+ unsigned inep4:1;
+ unsigned inep5:1;
+ unsigned inep6:1;
+ unsigned inep7:1;
+ unsigned inep8:1;
+ unsigned inep9:1;
+ unsigned inep10:1;
+ unsigned inep11:1;
+ unsigned inep12:1;
+ unsigned inep13:1;
+ unsigned inep14:1;
+ unsigned inep15:1;
+ /* OUT Endpoint bits */
+ unsigned outep0:1;
+ unsigned outep1:1;
+ unsigned outep2:1;
+ unsigned outep3:1;
+ unsigned outep4:1;
+ unsigned outep5:1;
+ unsigned outep6:1;
+ unsigned outep7:1;
+ unsigned outep8:1;
+ unsigned outep9:1;
+ unsigned outep10:1;
+ unsigned outep11:1;
+ unsigned outep12:1;
+ unsigned outep13:1;
+ unsigned outep14:1;
+ unsigned outep15:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device IN Token Queue Read
+ * Registers. Read the register into the d32 member. READ-ONLY Register
+ */
+union dtknq1_data {
+ u32 d32;
+ struct {
+ /* In Token Queue Write Pointer */
+ unsigned intknwptr:5;
+ /* Reserved */
+ unsigned reserved05_06:2;
+ /* write pointer has wrapped. */
+ unsigned wrap_bit:1;
+ /* EP Numbers of IN Tokens 0 ... 4 */
+ unsigned epnums0_5:24;
+ } b;
+};
+
+/*
+ * This union represents Threshold control Register Read and write the register
+ * into the d32 member. READ-WRITABLE Register
+ */
+union dthrctl_data {
+ u32 d32;
+ struct {
+ /* non ISO Tx Thr. Enable */
+ unsigned non_iso_thr_en:1;
+ /* ISO Tx Thr. Enable */
+ unsigned iso_thr_en:1;
+ /* Tx Thr. Length */
+ unsigned tx_thr_len:9;
+ /* Reserved */
+ unsigned reserved11_15:5;
+ /* Rx Thr. Enable */
+ unsigned rx_thr_en:1;
+ /* Rx Thr. Length */
+ unsigned rx_thr_len:9;
+ /* Reserved */
+ unsigned reserved26_31:6;
+ } b;
+};
+
+/*
+ * Device Logical IN Endpoint-Specific Registers. Offsets 900h-AFCh
+ *
+ * There will be one set of endpoint registers per logical endpoint implemented.
+ *
+ * These registers are visible only in Device mode and must not be accessed in
+ * Host mode, as the results are unknown.
+ */
+struct device_in_ep_regs {
+ /*
+ * Device IN Endpoint Control Register.
+ * Offset: 900h + (ep_num * 20h) + 00h
+ */
+ u32 diepctl;
+ /* Reserved. Offset:900h + (ep_num * 20h) + 04h */
+ u32 reserved04;
+ /*
+ * Device IN Endpoint Interrupt Register.
+ * Offset: 900h + (ep_num * 20h) + 08h
+ */
+ u32 diepint;
+ /* Reserved. Offset:900h + (ep_num * 20h) + 0Ch */
+ u32 reserved0C;
+ /*
+ * Device IN Endpoint Transfer Size Register.
+ * Offset: 900h + (ep_num * 20h) + 10h
+ */
+ u32 dieptsiz;
+ /*
+ * Device IN Endpoint DMA Address Register.
+ * Offset: 900h + (ep_num * 20h) + 14h
+ */
+ u32 diepdma;
+ /*
+ * Device IN Endpoint Transmit FIFO Status Register.
+ * Offset: 900h + (ep_num * 20h) + 18h
+ */
+ u32 dtxfsts;
+ /*
+ * Reserved.
+ * Offset: 900h + (ep_num * 20h) + 1Ch - 900h + (ep_num * 20h) + 1Ch
+ */
+ u32 reserved18;
+};
+
+/*
+ * Device Logical OUT Endpoint-Specific Registers. Offsets: B00h-CFCh
+ *
+ * There will be one set of endpoint registers per logical endpoint implemented.
+ *
+ * These registers are visible only in Device mode and must not be accessed in
+ * Host mode, as the results are unknown.
+ */
+struct device_out_ep_regs {
+ /*
+ * Device OUT Endpoint Control Register.
+ * Offset: B00h + (ep_num * 20h) + 00h
+ */
+ u32 doepctl;
+ /*
+ * Device OUT Endpoint Frame number Register.
+ * Offset: B00h + (ep_num * 20h) + 04h
+ */
+ u32 doepfn;
+ /*
+ * Device OUT Endpoint Interrupt Register.
+ * Offset: B00h + (ep_num * 20h) + 08h
+ */
+ u32 doepint;
+ /* Reserved. Offset:B00h + (ep_num * 20h) + 0Ch */
+ u32 reserved0C;
+ /*
+ * Device OUT Endpoint Transfer Size Register.
+ * Offset: B00h + (ep_num * 20h) + 10h
+ */
+ u32 doeptsiz;
+ /*
+ * Device OUT Endpoint DMA Address Register.
+ * Offset: B00h + (ep_num * 20h) + 14h
+ */
+ u32 doepdma;
+ /*
+ * Reserved.
+ * Offset:B00h + (ep_num * 20h) + 18h - B00h + (ep_num * 20h) + 1Ch
+ */
+ u32 unused[2];
+};
+
+/*
+ * This union represents the bit fields in the Device EP Control Register. Read
+ * the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union depctl_data {
+ u32 d32;
+ struct {
+ /* Maximum Packet Size
+ * IN/OUT EPn
+ * IN/OUT EP0 - 2 bits
+ * 2'b00: 64 Bytes
+ * 2'b01: 32
+ * 2'b10: 16
+ * 2'b11: 8
+ */
+ unsigned mps:11;
+#define DWC_DEP0CTL_MPS_64 0
+#define DWC_DEP0CTL_MPS_32 1
+#define DWC_DEP0CTL_MPS_16 2
+#define DWC_DEP0CTL_MPS_8 3
+
+ /*
+ * Next Endpoint
+ * IN EPn/IN EP0
+ * OUT EPn/OUT EP0 - reserved
+ */
+ unsigned nextep:4;
+ /* USB Active Endpoint */
+ unsigned usbactep:1;
+ /*
+ * Endpoint DPID (INTR/Bulk IN and OUT endpoints) This field
+ * contains the PID of the packet going to be received or
+ * transmitted on this endpoint. The application should program
+ * the PID of the first packet going to be received or
+ * transmitted on this endpoint , after the endpoint is
+ * activated. Application use the SetD1PID and SetD0PID fields
+ * of this register to program either D0 or D1 PID.
+ *
+ * The encoding for this field is
+ * - 0: D0
+ * - 1: D1
+ */
+ unsigned dpid:1;
+ /* NAK Status */
+ unsigned naksts:1;
+ /* Endpoint Type
+ * 2'b00: Control
+ * 2'b01: Isochronous
+ * 2'b10: Bulk
+ * 2'b11: Interrupt
+ */
+ unsigned eptype:2;
+ /*
+ * Snoop Mode
+ * OUT EPn/OUT EP0
+ * IN EPn/IN EP0 - reserved
+ */
+ unsigned snp:1;
+ /* Stall Handshake */
+ unsigned stall:1;
+ /*
+ * Tx Fifo Number
+ * IN EPn/IN EP0
+ * OUT EPn/OUT EP0 - reserved
+ */
+ unsigned txfnum:4;
+ /* Clear NAK */
+ unsigned cnak:1;
+ /* Set NAK */
+ unsigned snak:1;
+ /*
+ * Set DATA0 PID (INTR/Bulk IN and OUT endpoints)
+ *
+ * Writing to this field sets the Endpoint DPID (DPID) field in
+ * this register to DATA0. Set Even (micro)frame (SetEvenFr)
+ * (ISO IN and OUT Endpoints)
+ *
+ * Writing to this field sets the Even/Odd (micro)frame
+ * (EO_FrNum) field to even (micro) frame.
+ */
+ unsigned setd0pid:1;
+ /*
+ * Set DATA1 PID (INTR/Bulk IN and OUT endpoints)
+ *
+ * Writing to this field sets the Endpoint DPID (DPID) field in
+ * this register to DATA1 Set Odd (micro)frame (SetOddFr) (ISO
+ * IN and OUT Endpoints)
+ *
+ * Writing to this field sets the Even/Odd (micro)frame
+ * (EO_FrNum) field to odd (micro) frame.
+ */
+ unsigned setd1pid:1;
+ /* Endpoint Disable */
+ unsigned epdis:1;
+ /* Endpoint Enable */
+ unsigned epena:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device EP Transfer Size Register.
+ * Read the register into the d32 member then set/clear the bits using the bit
+ * elements.
+ */
+union deptsiz_data {
+ u32 d32;
+ struct {
+ /* Transfer size */
+ unsigned xfersize:19;
+ /* Packet Count */
+ unsigned pktcnt:10;
+ /* Multi Count - Periodic IN endpoints */
+ unsigned mc:2;
+ unsigned reserved:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Device EP 0 Transfer Size
+ * Register. Read the register into the d32 member then set/clear the bits
+ * using the bit elements.
+ */
+union deptsiz0_data {
+ u32 d32;
+ struct {
+ /* Transfer size */
+ unsigned xfersize:7;
+ /* Reserved */
+ unsigned reserved7_18:12;
+ /* Packet Count */
+ unsigned pktcnt:2;
+ /* Reserved */
+ unsigned reserved21_28:9;
+ /* Setup Packet Count (DOEPTSIZ0 Only) */
+ unsigned supcnt:2;
+ unsigned reserved31;
+ } b;
+};
+
+#define MAX_PERIO_FIFOS 15 /* Max periodic FIFOs */
+#define MAX_TX_FIFOS 15 /* Max non-periodic FIFOs */
+#define MAX_EPS_CHANNELS 4 /* Max Endpoints/HostChannels */
+
+/*
+ * The device_if structure contains information needed to manage the
+ * DWC_otg controller acting in device mode. It represents the programming view
+ * of the device-specific aspects of the controller.
+ */
+struct device_if {
+ /* Device Global Registers starting at offset 800h */
+ struct device_global_regs *dev_global_regs;
+#define DWC_DEV_GLOBAL_REG_OFFSET 0x800
+
+ /* Device Logical IN Endpoint-Specific Registers 900h-AFCh */
+ struct device_in_ep_regs *in_ep_regs[MAX_EPS_CHANNELS/2];
+#define DWC_DEV_IN_EP_REG_OFFSET 0x900
+#define DWC_EP_REG_OFFSET 0x20
+
+ /* Device Logical OUT Endpoint-Specific Registers B00h-CFCh */
+ struct device_out_ep_regs *out_ep_regs[MAX_EPS_CHANNELS/2];
+#define DWC_DEV_OUT_EP_REG_OFFSET 0xB00
+
+ /* Device Speed 0: Unknown, 1: LS, 2:FS, 3: HS */
+ u8 speed;
+ /* Number # of Tx EP range: 0-15 exept ep0 */
+ u8 num_in_eps;
+ /* Number # of Rx EP range: 0-15 exept ep0 */
+ u8 num_out_eps;
+
+ /* Size of periodic FIFOs (Bytes) */
+ u16 perio_tx_fifo_size[MAX_PERIO_FIFOS];
+
+ /* Size of Tx FIFOs (Bytes) */
+ u16 tx_fifo_size[MAX_TX_FIFOS];
+
+ /* Thresholding enable flags and length varaiables */
+ u16 rx_thr_en;
+ u16 iso_tx_thr_en;
+ u16 non_iso_tx_thr_en;
+ u16 rx_thr_length;
+ u16 tx_thr_length;
+};
+
+/*
+ * The Host Global Registers structure defines the size and relative
+ * field offsets for the Host Mode Global Registers. Host Global
+ * Registers offsets 400h-7FFh.
+*/
+struct host_global_regs {
+ /* Host Configuration Register. Offset: 400h */
+ u32 hcfg;
+ /* Host Frame Interval Register. Offset: 404h */
+ u32 hfir;
+ /* Host Frame Number / Frame Remaining Register. Offset: 408h */
+ u32 hfnum;
+ /* Reserved. Offset: 40Ch */
+ u32 reserved40C;
+ /* Host Periodic Transmit FIFO/ Queue Status Register. Offset: 410h */
+ u32 hptxsts;
+ /* Host All Channels Interrupt Register. Offset: 414h */
+ u32 haint;
+ /* Host All Channels Interrupt Mask Register. Offset: 418h */
+ u32 haintmsk;
+};
+
+/*
+ * This union represents the bit fields in the Host Configuration Register.
+ * Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hcfg register.
+ */
+union hcfg_data {
+ u32 d32;
+ struct {
+ /* FS/LS Phy Clock Select */
+ unsigned fslspclksel:2;
+#define DWC_HCFG_30_60_MHZ 0
+#define DWC_HCFG_48_MHZ 1
+#define DWC_HCFG_6_MHZ 2
+
+ /* FS/LS Only Support */
+ unsigned fslssupp:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Frame Remaing/Number
+ * Register.
+ */
+union hfir_data {
+ u32 d32;
+ struct {
+ unsigned frint:16;
+ unsigned reserved:16;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Frame Remaing/Number
+ * Register.
+ */
+union hfnum_data {
+ u32 d32;
+ struct {
+ unsigned frnum:16;
+#define DWC_HFNUM_MAX_FRNUM 0x3FFF
+ unsigned frrem:16;
+ } b;
+};
+
+union hptxsts_data {
+ u32 d32;
+ struct {
+ unsigned ptxfspcavail:16;
+ unsigned ptxqspcavail:8;
+ /*
+ * Top of the Periodic Transmit Request Queue
+ * - bit 24 - Terminate (last entry of selected channel)
+ * - bits 26:25 - Token Type
+ * - 2'b00 - Zero length
+ * - 2'b01 - Ping
+ * - 2'b10 - Disable
+ * - bits 30:27 - Channel Number
+ * - bit 31 - Odd/even microframe
+ */
+ unsigned ptxqtop_terminate:1;
+ unsigned ptxqtop_token:2;
+ unsigned ptxqtop_chnum:4;
+ unsigned ptxqtop_odd:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Port Control and Status
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hprt0 register.
+ */
+union hprt0_data {
+ u32 d32;
+ struct {
+ unsigned prtconnsts:1;
+ unsigned prtconndet:1;
+ unsigned prtena:1;
+ unsigned prtenchng:1;
+ unsigned prtovrcurract:1;
+ unsigned prtovrcurrchng:1;
+ unsigned prtres:1;
+ unsigned prtsusp:1;
+ unsigned prtrst:1;
+ unsigned reserved9:1;
+ unsigned prtlnsts:2;
+ unsigned prtpwr:1;
+ unsigned prttstctl:4;
+ unsigned prtspd:2;
+#define DWC_HPRT0_PRTSPD_HIGH_SPEED 0
+#define DWC_HPRT0_PRTSPD_FULL_SPEED 1
+#define DWC_HPRT0_PRTSPD_LOW_SPEED 2
+ unsigned reserved19_31:13;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host All Interrupt Register.
+ */
+union haint_data {
+ u32 d32;
+ struct {
+ unsigned ch0:1;
+ unsigned ch1:1;
+ unsigned ch2:1;
+ unsigned ch3:1;
+ unsigned ch4:1;
+ unsigned ch5:1;
+ unsigned ch6:1;
+ unsigned ch7:1;
+ unsigned ch8:1;
+ unsigned ch9:1;
+ unsigned ch10:1;
+ unsigned ch11:1;
+ unsigned ch12:1;
+ unsigned ch13:1;
+ unsigned ch14:1;
+ unsigned ch15:1;
+ unsigned reserved:16;
+ } b;
+
+ struct {
+ unsigned chint:16;
+ unsigned reserved:16;
+ } b2;
+};
+
+/*
+ * This union represents the bit fields in the Host All Interrupt Register.
+ */
+union haintmsk_data {
+ u32 d32;
+ struct {
+ unsigned ch0:1;
+ unsigned ch1:1;
+ unsigned ch2:1;
+ unsigned ch3:1;
+ unsigned ch4:1;
+ unsigned ch5:1;
+ unsigned ch6:1;
+ unsigned ch7:1;
+ unsigned ch8:1;
+ unsigned ch9:1;
+ unsigned ch10:1;
+ unsigned ch11:1;
+ unsigned ch12:1;
+ unsigned ch13:1;
+ unsigned ch14:1;
+ unsigned ch15:1;
+ unsigned reserved:16;
+ } b;
+
+ struct {
+ unsigned chint:16;
+ unsigned reserved:16;
+ } b2;
+};
+
+/*
+ * Host Channel Specific Registers. 500h-5FCh
+ */
+struct dwc_hc_regs {
+ /*
+ * Host Channel 0 Characteristic Register.
+ * Offset: 500h + (chan_num * 20h) + 00h
+ */
+ u32 hcchar;
+ /*
+ * Host Channel 0 Split Control Register.
+ * Offset: 500h + (chan_num * 20h) + 04h
+ */
+ u32 hcsplt;
+ /*
+ * Host Channel 0 Interrupt Register.
+ * Offset: 500h + (chan_num * 20h) + 08h
+ */
+ u32 hcint;
+ /*
+ * Host Channel 0 Interrupt Mask Register.
+ * Offset: 500h + (chan_num * 20h) + 0Ch
+ */
+ u32 hcintmsk;
+ /*
+ * Host Channel 0 Transfer Size Register.
+ * Offset: 500h + (chan_num * 20h) + 10h
+ */
+ u32 hctsiz;
+ /*
+ * Host Channel 0 DMA Address Register.
+ * Offset: 500h + (chan_num * 20h) + 14h
+ */
+ u32 hcdma;
+ /* Reserved.
+ * Offset: 500h + (chan_num * 20h) + 18h - 500h + (chan_num * 20h) + 1Ch
+ */
+ u32 reserved[2];
+};
+
+/*
+ * This union represents the bit fields in the Host Channel Characteristics
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hcchar register.
+ */
+union hcchar_data {
+ u32 d32;
+ struct {
+ /* Maximum packet size in bytes */
+ unsigned mps:11;
+ /* Endpoint number */
+ unsigned epnum:4;
+ /* 0: OUT, 1: IN */
+ unsigned epdir:1;
+ unsigned reserved:1;
+ /* 0: Full/high speed device, 1: Low speed device */
+ unsigned lspddev:1;
+ /* 0: Control, 1: Isoc, 2: Bulk, 3: Intr */
+ unsigned eptype:2;
+ /* Packets per frame for periodic transfers. 0 is reserved. */
+ unsigned multicnt:2;
+ /* Device address */
+ unsigned devaddr:7;
+ /*
+ * Frame to transmit periodic transaction.
+ * 0: even, 1: odd
+ */
+ unsigned oddfrm:1;
+ /* Channel disable */
+ unsigned chdis:1;
+ /* Channel enable */
+ unsigned chen:1;
+ } b;
+};
+
+union hcsplt_data {
+ u32 d32;
+ struct {
+ /* Port Address */
+ unsigned prtaddr:7;
+ /* Hub Address */
+ unsigned hubaddr:7;
+ /* Transaction Position */
+ unsigned xactpos:2;
+#define DWC_HCSPLIT_XACTPOS_MID 0
+#define DWC_HCSPLIT_XACTPOS_END 1
+#define DWC_HCSPLIT_XACTPOS_BEGIN 2
+#define DWC_HCSPLIT_XACTPOS_ALL 3
+
+ /* Do Complete Split */
+ unsigned compsplt:1;
+ /* Reserved */
+ unsigned reserved:14;
+ /* Split Enble */
+ unsigned spltena:1;
+ } b;
+};
+
+
+/*
+ * This union represents the bit fields in the Host All Interrupt Register.
+ */
+union hcint_data {
+ u32 d32;
+ struct {
+ /* Transfer Complete */
+ unsigned xfercomp:1;
+ /* Channel Halted */
+ unsigned chhltd:1;
+ /* AHB Error */
+ unsigned ahberr:1;
+ /* STALL Response Received */
+ unsigned stall:1;
+ /* NAK Response Received */
+ unsigned nak:1;
+ /* ACK Response Received */
+ unsigned ack:1;
+ /* NYET Response Received */
+ unsigned nyet:1;
+ /* Transaction Err */
+ unsigned xacterr:1;
+ /* Babble Error */
+ unsigned bblerr:1;
+ /* Frame Overrun */
+ unsigned frmovrun:1;
+ /* Data Toggle Error */
+ unsigned datatglerr:1;
+ /* Reserved */
+ unsigned reserved:21;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Channel Transfer Size
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hcchar register.
+ */
+union hctsiz_data {
+ u32 d32;
+ struct {
+ /* Total transfer size in bytes */
+ unsigned xfersize:19;
+ /* Data packets to transfer */
+ unsigned pktcnt:10;
+ /*
+ * Packet ID for next data packet
+ * 0: DATA0
+ * 1: DATA2
+ * 2: DATA1
+ * 3: MDATA (non-Control), SETUP (Control)
+ */
+ unsigned pid:2;
+#define DWC_HCTSIZ_DATA0 0
+#define DWC_HCTSIZ_DATA1 2
+#define DWC_HCTSIZ_DATA2 1
+#define DWC_HCTSIZ_MDATA 3
+#define DWC_HCTSIZ_SETUP 3
+
+ /* Do PING protocol when 1 */
+ unsigned dopng:1;
+ } b;
+};
+
+/*
+ * This union represents the bit fields in the Host Channel Interrupt Mask
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements. Write the d32 member to the hcintmsk register.
+ */
+union hcintmsk_data {
+ u32 d32;
+ struct {
+ unsigned xfercompl:1;
+ unsigned chhltd:1;
+ unsigned ahberr:1;
+ unsigned stall:1;
+ unsigned nak:1;
+ unsigned ack:1;
+ unsigned nyet:1;
+ unsigned xacterr:1;
+ unsigned bblerr:1;
+ unsigned frmovrun:1;
+ unsigned datatglerr:1;
+ unsigned reserved:21;
+ } b;
+};
+
+/* OTG Host Interface Structure.
+ *
+ * The OTG Host Interface Structure structure contains information needed to
+ * manage the DWC_otg controller acting in host mode. It represents the
+ * programming view of the host-specific aspects of the controller.
+ */
+struct dwc_host_if {
+ /* Host Global Registers starting at offset 400h.*/
+ struct host_global_regs *host_global_regs;
+#define DWC_OTG_HOST_GLOBAL_REG_OFFSET 0x400
+
+ /* Host Port 0 Control and Status Register */
+ u32 *hprt0;
+#define DWC_OTG_HOST_PORT_REGS_OFFSET 0x440
+
+ /* Host Channel Specific Registers at offsets 500h-5FCh. */
+ struct dwc_hc_regs *hc_regs[MAX_EPS_CHANNELS];
+#define DWC_OTG_HOST_CHAN_REGS_OFFSET 0x500
+#define DWC_OTG_CHAN_REGS_OFFSET 0x20
+
+ /* Host configuration information */
+ /* Number of Host Channels (range: 1-16) */
+ u8 num_host_channels;
+ /* Periodic EPs supported (0: no, 1: yes) */
+ u8 perio_eps_supported;
+ /* Periodic Tx FIFO Size (Only 1 host periodic Tx FIFO) */
+ u16 perio_tx_fifo_size;
+};
+
+/*
+ * This union represents the bit fields in the Power and Clock Gating Control
+ * Register. Read the register into the d32 member then set/clear the bits using
+ * the bit elements.
+ */
+union pcgcctl_data {
+ u32 d32;
+ struct {
+ /* Stop Pclk */
+ unsigned stoppclk:1;
+ /* Gate Hclk */
+ unsigned gatehclk:1;
+ /* Power Clamp */
+ unsigned pwrclmp:1;
+ /* Reset Power Down Modules */
+ unsigned rstpdwnmodule:1;
+ /* PHY Suspended */
+ unsigned physuspended:1;
+ unsigned reserved:27;
+ } b;
+};
+
+#endif /* CONFIG_DWC_OTG_REG_LE */
+#endif
--
1.6.0.1
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