51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/*
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* Ethernet driver for the Atmel AT91RM9200 (Thunder)
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*
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* Copyright (C) SAN People (Pty) Ltd
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*
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* Based on an earlier Atmel EMAC macrocell driver by Atmel and Lineo Inc.
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* Initial version by Rick Bronson.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef AT91_ETHERNET
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#define AT91_ETHERNET
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/* ........................................................................ */
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#define MAX_RBUFF_SZ 0x600 /* 1518 rounded up */
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#define MAX_RX_DESCR 64 /* max number of receive buffers */
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/* ----- Ethernet Buffer definitions ----- */
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#define RBF_ADDR 0xfffffffc
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#define RBF_OWNER (1<<0)
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#define RBF_WRAP (1<<1)
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#define RBF_SIZE 0x07ff
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struct rbf_t
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{
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unsigned int addr;
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unsigned long size;
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};
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/*
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* Read from a EMAC register.
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*/
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static inline unsigned long at91_emac_read(unsigned int reg)
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{
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return __raw_readl(AT91_VA_BASE_EMAC + reg);
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}
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/*
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* Write to a EMAC register.
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*/
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static inline void at91_emac_write(unsigned int reg, unsigned long value)
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{
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__raw_writel(value, AT91_VA_BASE_EMAC + reg);
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}
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#endif
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