mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
126 lines
2.3 KiB
C
126 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
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*
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* Copyright (C) 2004, 2005
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* Cory T. Tusar, Videon Central, Inc., <ctusar@videon-central.com>
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*/
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#ifndef _EP93XX_ETH_H
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#define _EP93XX_ETH_H
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#include <net.h>
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/**
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* #define this to dump device status and queue info during initialization and
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* following errors.
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*/
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#undef EP93XX_MAC_DEBUG
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/**
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* Number of descriptor and status entries in our RX queues.
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* It must be power of 2 !
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*/
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#define NUMRXDESC PKTBUFSRX
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/**
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* Number of descriptor and status entries in our TX queues.
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*/
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#define NUMTXDESC 1
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/**
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* 944 = (1024 - 64) - 16, Fifo size - Minframesize - 16 (Chip FACT)
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*/
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#define TXSTARTMAX 944
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/**
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* Receive descriptor queue entry
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*/
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struct rx_descriptor {
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uint32_t word1;
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uint32_t word2;
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};
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/**
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* Receive status queue entry
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*/
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struct rx_status {
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uint32_t word1;
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uint32_t word2;
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};
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#define RX_STATUS_RWE(rx_status) ((rx_status->word1 >> 30) & 0x01)
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#define RX_STATUS_RFP(rx_status) ((rx_status->word1 >> 31) & 0x01)
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#define RX_STATUS_FRAME_LEN(rx_status) (rx_status->word2 & 0xFFFF)
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/**
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* Transmit descriptor queue entry
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*/
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struct tx_descriptor {
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uint32_t word1;
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uint32_t word2;
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};
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#define TX_DESC_EOF (1 << 31)
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/**
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* Transmit status queue entry
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*/
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struct tx_status {
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uint32_t word1;
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};
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#define TX_STATUS_TXWE(tx_status) (((tx_status)->word1 >> 30) & 0x01)
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#define TX_STATUS_TXFP(tx_status) (((tx_status)->word1 >> 31) & 0x01)
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/**
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* Transmit descriptor queue
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*/
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struct tx_descriptor_queue {
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struct tx_descriptor *base;
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struct tx_descriptor *current;
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struct tx_descriptor *end;
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};
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/**
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* Transmit status queue
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*/
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struct tx_status_queue {
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struct tx_status *base;
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volatile struct tx_status *current;
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struct tx_status *end;
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};
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/**
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* Receive descriptor queue
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*/
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struct rx_descriptor_queue {
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struct rx_descriptor *base;
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struct rx_descriptor *current;
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struct rx_descriptor *end;
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};
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/**
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* Receive status queue
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*/
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struct rx_status_queue {
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struct rx_status *base;
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volatile struct rx_status *current;
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struct rx_status *end;
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};
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/**
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* EP93xx MAC private data structure
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*/
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struct ep93xx_priv {
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struct rx_descriptor_queue rx_dq;
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struct rx_status_queue rx_sq;
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void *rx_buffer[NUMRXDESC];
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struct tx_descriptor_queue tx_dq;
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struct tx_status_queue tx_sq;
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struct mac_regs *regs;
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};
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#endif
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