mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 22:20:45 +00:00
594d57d0cc
Added ethernet driver for EP93xx SoCs Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
144 lines
3 KiB
C
144 lines
3 KiB
C
/*
|
|
* Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
|
|
*
|
|
* Copyright (C) 2004, 2005
|
|
* Cory T. Tusar, Videon Central, Inc., <ctusar@videon-central.com>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#ifndef _EP93XX_ETH_H
|
|
#define _EP93XX_ETH_H
|
|
|
|
#include <net.h>
|
|
|
|
/**
|
|
* #define this to dump device status and queue info during initialization and
|
|
* following errors.
|
|
*/
|
|
#undef EP93XX_MAC_DEBUG
|
|
|
|
/**
|
|
* Number of descriptor and status entries in our RX queues.
|
|
* It must be power of 2 !
|
|
*/
|
|
#define NUMRXDESC PKTBUFSRX
|
|
|
|
/**
|
|
* Number of descriptor and status entries in our TX queues.
|
|
*/
|
|
#define NUMTXDESC 1
|
|
|
|
/**
|
|
* 944 = (1024 - 64) - 16, Fifo size - Minframesize - 16 (Chip FACT)
|
|
*/
|
|
#define TXSTARTMAX 944
|
|
|
|
/**
|
|
* Receive descriptor queue entry
|
|
*/
|
|
struct rx_descriptor {
|
|
uint32_t word1;
|
|
uint32_t word2;
|
|
};
|
|
|
|
/**
|
|
* Receive status queue entry
|
|
*/
|
|
struct rx_status {
|
|
uint32_t word1;
|
|
uint32_t word2;
|
|
};
|
|
|
|
#define RX_STATUS_RWE(rx_status) ((rx_status->word1 >> 30) & 0x01)
|
|
#define RX_STATUS_RFP(rx_status) ((rx_status->word1 >> 31) & 0x01)
|
|
#define RX_STATUS_FRAME_LEN(rx_status) (rx_status->word2 & 0xFFFF)
|
|
|
|
/**
|
|
* Transmit descriptor queue entry
|
|
*/
|
|
struct tx_descriptor {
|
|
uint32_t word1;
|
|
uint32_t word2;
|
|
};
|
|
|
|
#define TX_DESC_EOF (1 << 31)
|
|
|
|
/**
|
|
* Transmit status queue entry
|
|
*/
|
|
struct tx_status {
|
|
uint32_t word1;
|
|
};
|
|
|
|
#define TX_STATUS_TXWE(tx_status) (((tx_status)->word1 >> 30) & 0x01)
|
|
#define TX_STATUS_TXFP(tx_status) (((tx_status)->word1 >> 31) & 0x01)
|
|
|
|
/**
|
|
* Transmit descriptor queue
|
|
*/
|
|
struct tx_descriptor_queue {
|
|
struct tx_descriptor *base;
|
|
struct tx_descriptor *current;
|
|
struct tx_descriptor *end;
|
|
};
|
|
|
|
/**
|
|
* Transmit status queue
|
|
*/
|
|
struct tx_status_queue {
|
|
struct tx_status *base;
|
|
volatile struct tx_status *current;
|
|
struct tx_status *end;
|
|
};
|
|
|
|
/**
|
|
* Receive descriptor queue
|
|
*/
|
|
struct rx_descriptor_queue {
|
|
struct rx_descriptor *base;
|
|
struct rx_descriptor *current;
|
|
struct rx_descriptor *end;
|
|
};
|
|
|
|
/**
|
|
* Receive status queue
|
|
*/
|
|
struct rx_status_queue {
|
|
struct rx_status *base;
|
|
volatile struct rx_status *current;
|
|
struct rx_status *end;
|
|
};
|
|
|
|
/**
|
|
* EP93xx MAC private data structure
|
|
*/
|
|
struct ep93xx_priv {
|
|
struct rx_descriptor_queue rx_dq;
|
|
struct rx_status_queue rx_sq;
|
|
void *rx_buffer[NUMRXDESC];
|
|
|
|
struct tx_descriptor_queue tx_dq;
|
|
struct tx_status_queue tx_sq;
|
|
|
|
struct mac_regs *regs;
|
|
};
|
|
|
|
#endif
|