u-boot/board/xilinx/xilinx_enet/xemac_l.h

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/******************************************************************************
*
* Author: Xilinx, Inc.
*
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*
* XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
* COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
* ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
* XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
* FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
* ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
* XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
* THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
* WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
* CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE.
*
*
* Xilinx hardware products are not intended for use in life support
* appliances, devices, or systems. Use in such applications is
* expressly prohibited.
*
*
* (c) Copyright 2002-2004 Xilinx Inc.
* All rights reserved.
*
*
* 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.
*
******************************************************************************/
/*****************************************************************************/
/**
*
* @file xemac_l.h
*
* This header file contains identifiers and low-level driver functions (or
* macros) that can be used to access the device. High-level driver functions
* are defined in xemac.h.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -----------------------------------------------
* 1.00b rpm 04/26/02 First release
* 1.00b rmm 09/23/02 Added XEmac_mPhyReset macro
* 1.00c rpm 12/05/02 New version includes support for simple DMA
* </pre>
*
******************************************************************************/
#ifndef XEMAC_L_H /* prevent circular inclusions */
#define XEMAC_L_H /* by using protection macros */
/***************************** Include Files *********************************/
#include "xbasic_types.h"
#include "xio.h"
/************************** Constant Definitions *****************************/
/* Offset of the MAC registers from the IPIF base address */
#define XEM_REG_OFFSET 0x1100UL
/*
* Register offsets for the Ethernet MAC. Each register is 32 bits.
*/
#define XEM_EMIR_OFFSET (XEM_REG_OFFSET + 0x0) /* EMAC Module ID */
#define XEM_ECR_OFFSET (XEM_REG_OFFSET + 0x4) /* MAC Control */
#define XEM_IFGP_OFFSET (XEM_REG_OFFSET + 0x8) /* Interframe Gap */
#define XEM_SAH_OFFSET (XEM_REG_OFFSET + 0xC) /* Station addr, high */
#define XEM_SAL_OFFSET (XEM_REG_OFFSET + 0x10) /* Station addr, low */
#define XEM_MGTCR_OFFSET (XEM_REG_OFFSET + 0x14) /* MII mgmt control */
#define XEM_MGTDR_OFFSET (XEM_REG_OFFSET + 0x18) /* MII mgmt data */
#define XEM_RPLR_OFFSET (XEM_REG_OFFSET + 0x1C) /* Rx packet length */
#define XEM_TPLR_OFFSET (XEM_REG_OFFSET + 0x20) /* Tx packet length */
#define XEM_TSR_OFFSET (XEM_REG_OFFSET + 0x24) /* Tx status */
#define XEM_RMFC_OFFSET (XEM_REG_OFFSET + 0x28) /* Rx missed frames */
#define XEM_RCC_OFFSET (XEM_REG_OFFSET + 0x2C) /* Rx collisions */
#define XEM_RFCSEC_OFFSET (XEM_REG_OFFSET + 0x30) /* Rx FCS errors */
#define XEM_RAEC_OFFSET (XEM_REG_OFFSET + 0x34) /* Rx alignment errors */
#define XEM_TEDC_OFFSET (XEM_REG_OFFSET + 0x38) /* Transmit excess
* deferral cnt */
/*
* Register offsets for the IPIF components
*/
#define XEM_ISR_OFFSET 0x20UL /* Interrupt status */
#define XEM_DMA_OFFSET 0x2300UL
#define XEM_DMA_SEND_OFFSET (XEM_DMA_OFFSET + 0x0) /* DMA send channel */
#define XEM_DMA_RECV_OFFSET (XEM_DMA_OFFSET + 0x40) /* DMA recv channel */
#define XEM_PFIFO_OFFSET 0x2000UL
#define XEM_PFIFO_TXREG_OFFSET (XEM_PFIFO_OFFSET + 0x0) /* Tx registers */
#define XEM_PFIFO_RXREG_OFFSET (XEM_PFIFO_OFFSET + 0x10) /* Rx registers */
#define XEM_PFIFO_TXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x100) /* Tx keyhole */
#define XEM_PFIFO_RXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x200) /* Rx keyhole */
/*
* EMAC Module Identification Register (EMIR)
*/
#define XEM_EMIR_VERSION_MASK 0xFFFF0000UL /* Device version */
#define XEM_EMIR_TYPE_MASK 0x0000FF00UL /* Device type */
/*
* EMAC Control Register (ECR)
*/
#define XEM_ECR_FULL_DUPLEX_MASK 0x80000000UL /* Full duplex mode */
#define XEM_ECR_XMIT_RESET_MASK 0x40000000UL /* Reset transmitter */
#define XEM_ECR_XMIT_ENABLE_MASK 0x20000000UL /* Enable transmitter */
#define XEM_ECR_RECV_RESET_MASK 0x10000000UL /* Reset receiver */
#define XEM_ECR_RECV_ENABLE_MASK 0x08000000UL /* Enable receiver */
#define XEM_ECR_PHY_ENABLE_MASK 0x04000000UL /* Enable PHY */
#define XEM_ECR_XMIT_PAD_ENABLE_MASK 0x02000000UL /* Enable xmit pad insert */
#define XEM_ECR_XMIT_FCS_ENABLE_MASK 0x01000000UL /* Enable xmit FCS insert */
#define XEM_ECR_XMIT_ADDR_INSERT_MASK 0x00800000UL /* Enable xmit source addr
* insertion */
#define XEM_ECR_XMIT_ERROR_INSERT_MASK 0x00400000UL /* Insert xmit error */
#define XEM_ECR_XMIT_ADDR_OVWRT_MASK 0x00200000UL /* Enable xmit source addr
* overwrite */
#define XEM_ECR_LOOPBACK_MASK 0x00100000UL /* Enable internal
* loopback */
#define XEM_ECR_RECV_STRIP_ENABLE_MASK 0x00080000UL /* Enable recv pad/fcs strip */
#define XEM_ECR_UNICAST_ENABLE_MASK 0x00020000UL /* Enable unicast addr */
#define XEM_ECR_MULTI_ENABLE_MASK 0x00010000UL /* Enable multicast addr */
#define XEM_ECR_BROAD_ENABLE_MASK 0x00008000UL /* Enable broadcast addr */
#define XEM_ECR_PROMISC_ENABLE_MASK 0x00004000UL /* Enable promiscuous mode */
#define XEM_ECR_RECV_ALL_MASK 0x00002000UL /* Receive all frames */
#define XEM_ECR_RESERVED2_MASK 0x00001000UL /* Reserved */
#define XEM_ECR_MULTI_HASH_ENABLE_MASK 0x00000800UL /* Enable multicast hash */
#define XEM_ECR_PAUSE_FRAME_MASK 0x00000400UL /* Interpret pause frames */
#define XEM_ECR_CLEAR_HASH_MASK 0x00000200UL /* Clear hash table */
#define XEM_ECR_ADD_HASH_ADDR_MASK 0x00000100UL /* Add hash table address */
/*
* Interframe Gap Register (IFGR)
*/
#define XEM_IFGP_PART1_MASK 0xF8000000UL /* Interframe Gap Part1 */
#define XEM_IFGP_PART1_SHIFT 27
#define XEM_IFGP_PART2_MASK 0x07C00000UL /* Interframe Gap Part2 */
#define XEM_IFGP_PART2_SHIFT 22
/*
* Station Address High Register (SAH)
*/
#define XEM_SAH_ADDR_MASK 0x0000FFFFUL /* Station address high bytes */
/*
* Station Address Low Register (SAL)
*/
#define XEM_SAL_ADDR_MASK 0xFFFFFFFFUL /* Station address low bytes */
/*
* MII Management Control Register (MGTCR)
*/
#define XEM_MGTCR_START_MASK 0x80000000UL /* Start/Busy */
#define XEM_MGTCR_RW_NOT_MASK 0x40000000UL /* Read/Write Not (direction) */
#define XEM_MGTCR_PHY_ADDR_MASK 0x3E000000UL /* PHY address */
#define XEM_MGTCR_PHY_ADDR_SHIFT 25 /* PHY address shift */
#define XEM_MGTCR_REG_ADDR_MASK 0x01F00000UL /* Register address */
#define XEM_MGTCR_REG_ADDR_SHIFT 20 /* Register addr shift */
#define XEM_MGTCR_MII_ENABLE_MASK 0x00080000UL /* Enable MII from EMAC */
#define XEM_MGTCR_RD_ERROR_MASK 0x00040000UL /* MII mgmt read error */
/*
* MII Management Data Register (MGTDR)
*/
#define XEM_MGTDR_DATA_MASK 0x0000FFFFUL /* MII data */
/*
* Receive Packet Length Register (RPLR)
*/
#define XEM_RPLR_LENGTH_MASK 0x0000FFFFUL /* Receive packet length */
/*
* Transmit Packet Length Register (TPLR)
*/
#define XEM_TPLR_LENGTH_MASK 0x0000FFFFUL /* Transmit packet length */
/*
* Transmit Status Register (TSR)
*/
#define XEM_TSR_EXCESS_DEFERRAL_MASK 0x80000000UL /* Transmit excess deferral */
#define XEM_TSR_FIFO_UNDERRUN_MASK 0x40000000UL /* Packet FIFO underrun */
#define XEM_TSR_ATTEMPTS_MASK 0x3E000000UL /* Transmission attempts */
#define XEM_TSR_LATE_COLLISION_MASK 0x01000000UL /* Transmit late collision */
/*
* Receive Missed Frame Count (RMFC)
*/
#define XEM_RMFC_DATA_MASK 0x0000FFFFUL
/*
* Receive Collision Count (RCC)
*/
#define XEM_RCC_DATA_MASK 0x0000FFFFUL
/*
* Receive FCS Error Count (RFCSEC)
*/
#define XEM_RFCSEC_DATA_MASK 0x0000FFFFUL
/*
* Receive Alignment Error Count (RALN)
*/
#define XEM_RAEC_DATA_MASK 0x0000FFFFUL
/*
* Transmit Excess Deferral Count (TEDC)
*/
#define XEM_TEDC_DATA_MASK 0x0000FFFFUL
/*
* EMAC Interrupt Registers (Status and Enable) masks. These registers are
* part of the IPIF IP Interrupt registers
*/
#define XEM_EIR_XMIT_DONE_MASK 0x00000001UL /* Xmit complete */
#define XEM_EIR_RECV_DONE_MASK 0x00000002UL /* Recv complete */
#define XEM_EIR_XMIT_ERROR_MASK 0x00000004UL /* Xmit error */
#define XEM_EIR_RECV_ERROR_MASK 0x00000008UL /* Recv error */
#define XEM_EIR_XMIT_SFIFO_EMPTY_MASK 0x00000010UL /* Xmit status fifo empty */
#define XEM_EIR_RECV_LFIFO_EMPTY_MASK 0x00000020UL /* Recv length fifo empty */
#define XEM_EIR_XMIT_LFIFO_FULL_MASK 0x00000040UL /* Xmit length fifo full */
#define XEM_EIR_RECV_LFIFO_OVER_MASK 0x00000080UL /* Recv length fifo
* overrun */
#define XEM_EIR_RECV_LFIFO_UNDER_MASK 0x00000100UL /* Recv length fifo
* underrun */
#define XEM_EIR_XMIT_SFIFO_OVER_MASK 0x00000200UL /* Xmit status fifo
* overrun */
#define XEM_EIR_XMIT_SFIFO_UNDER_MASK 0x00000400UL /* Transmit status fifo
* underrun */
#define XEM_EIR_XMIT_LFIFO_OVER_MASK 0x00000800UL /* Transmit length fifo
* overrun */
#define XEM_EIR_XMIT_LFIFO_UNDER_MASK 0x00001000UL /* Transmit length fifo
* underrun */
#define XEM_EIR_XMIT_PAUSE_MASK 0x00002000UL /* Transmit pause pkt
* received */
#define XEM_EIR_RECV_DFIFO_OVER_MASK 0x00004000UL /* Receive data fifo
* overrun */
#define XEM_EIR_RECV_MISSED_FRAME_MASK 0x00008000UL /* Receive missed frame
* error */
#define XEM_EIR_RECV_COLLISION_MASK 0x00010000UL /* Receive collision
* error */
#define XEM_EIR_RECV_FCS_ERROR_MASK 0x00020000UL /* Receive FCS error */
#define XEM_EIR_RECV_LEN_ERROR_MASK 0x00040000UL /* Receive length field
* error */
#define XEM_EIR_RECV_SHORT_ERROR_MASK 0x00080000UL /* Receive short frame
* error */
#define XEM_EIR_RECV_LONG_ERROR_MASK 0x00100000UL /* Receive long frame
* error */
#define XEM_EIR_RECV_ALIGN_ERROR_MASK 0x00200000UL /* Receive alignment
* error */
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/*****************************************************************************
*
* Low-level driver macros and functions. The list below provides signatures
* to help the user use the macros.
*
* u32 XEmac_mReadReg(u32 BaseAddress, int RegOffset)
* void XEmac_mWriteReg(u32 BaseAddress, int RegOffset, u32 Mask)
*
* void XEmac_mSetControlReg(u32 BaseAddress, u32 Mask)
* void XEmac_mSetMacAddress(u32 BaseAddress, u8 *AddressPtr)
*
* void XEmac_mEnable(u32 BaseAddress)
* void XEmac_mDisable(u32 BaseAddress)
*
* u32 XEmac_mIsTxDone(u32 BaseAddress)
* u32 XEmac_mIsRxEmpty(u32 BaseAddress)
*
* void XEmac_SendFrame(u32 BaseAddress, u8 *FramePtr, int Size)
* int XEmac_RecvFrame(u32 BaseAddress, u8 *FramePtr)
*
*****************************************************************************/
/****************************************************************************/
/**
*
* Read the given register.
*
* @param BaseAddress is the base address of the device
* @param RegOffset is the register offset to be read
*
* @return The 32-bit value of the register
*
* @note None.
*
*****************************************************************************/
#define XEmac_mReadReg(BaseAddress, RegOffset) \
XIo_In32((BaseAddress) + (RegOffset))
/****************************************************************************/
/**
*
* Write the given register.
*
* @param BaseAddress is the base address of the device
* @param RegOffset is the register offset to be written
* @param Data is the 32-bit value to write to the register
*
* @return None.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mWriteReg(BaseAddress, RegOffset, Data) \
XIo_Out32((BaseAddress) + (RegOffset), (Data))
/****************************************************************************/
/**
*
* Set the contents of the control register. Use the XEM_ECR_* constants
* defined above to create the bit-mask to be written to the register.
*
* @param BaseAddress is the base address of the device
* @param Mask is the 16-bit value to write to the control register
*
* @return None.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mSetControlReg(BaseAddress, Mask) \
XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, (Mask))
/****************************************************************************/
/**
*
* Set the station address of the EMAC device.
*
* @param BaseAddress is the base address of the device
* @param AddressPtr is a pointer to a 6-byte MAC address
*
* @return None.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mSetMacAddress(BaseAddress, AddressPtr) \
{ \
u32 MacAddr; \
\
MacAddr = ((AddressPtr)[0] << 8) | (AddressPtr)[1]; \
XIo_Out32((BaseAddress) + XEM_SAH_OFFSET, MacAddr); \
\
MacAddr = ((AddressPtr)[2] << 24) | ((AddressPtr)[3] << 16) | \
((AddressPtr)[4] << 8) | (AddressPtr)[5]; \
\
XIo_Out32((BaseAddress) + XEM_SAL_OFFSET, MacAddr); \
}
/****************************************************************************/
/**
*
* Enable the transmitter and receiver. Preserve the contents of the control
* register.
*
* @param BaseAddress is the base address of the device
*
* @return None.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mEnable(BaseAddress) \
{ \
u32 Control; \
Control = XIo_In32((BaseAddress) + XEM_ECR_OFFSET); \
Control &= ~(XEM_ECR_XMIT_RESET_MASK | XEM_ECR_RECV_RESET_MASK); \
Control |= (XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK); \
XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, Control); \
}
/****************************************************************************/
/**
*
* Disable the transmitter and receiver. Preserve the contents of the control
* register.
*
* @param BaseAddress is the base address of the device
*
* @return None.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mDisable(BaseAddress) \
XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, \
XIo_In32((BaseAddress) + XEM_ECR_OFFSET) & \
~(XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK))
/****************************************************************************/
/**
*
* Check to see if the transmission is complete.
*
* @param BaseAddress is the base address of the device
*
* @return TRUE if it is done, or FALSE if it is not.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mIsTxDone(BaseAddress) \
(XIo_In32((BaseAddress) + XEM_ISR_OFFSET) & XEM_EIR_XMIT_DONE_MASK)
/****************************************************************************/
/**
*
* Check to see if the receive FIFO is empty.
*
* @param BaseAddress is the base address of the device
*
* @return TRUE if it is empty, or FALSE if it is not.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mIsRxEmpty(BaseAddress) \
(!(XIo_In32((BaseAddress) + XEM_ISR_OFFSET) & XEM_EIR_RECV_DONE_MASK))
/****************************************************************************/
/**
*
* Reset MII compliant PHY
*
* @param BaseAddress is the base address of the device
*
* @return None.
*
* @note None.
*
*****************************************************************************/
#define XEmac_mPhyReset(BaseAddress) \
{ \
u32 Control; \
Control = XIo_In32((BaseAddress) + XEM_ECR_OFFSET); \
Control &= ~XEM_ECR_PHY_ENABLE_MASK; \
XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, Control); \
Control |= XEM_ECR_PHY_ENABLE_MASK; \
XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, Control); \
}
/************************** Function Prototypes ******************************/
void XEmac_SendFrame(u32 BaseAddress, u8 * FramePtr, int Size);
int XEmac_RecvFrame(u32 BaseAddress, u8 * FramePtr);
#endif /* end of protection macro */