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Diffstat (limited to 'board/xilinx/xilinx_enet/xemac_l.h')
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diff --git a/board/xilinx/xilinx_enet/xemac_l.h b/board/xilinx/xilinx_enet/xemac_l.h new file mode 100644 index 0000000..a463937 --- /dev/null +++ b/board/xilinx/xilinx_enet/xemac_l.h @@ -0,0 +1,462 @@ +/****************************************************************************** +* +* 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 */ |