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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Ethernet driver for the Atmel AT91RM9200 (Thunder)
*
* Copyright (C) SAN People (Pty) Ltd
*
* Based on an earlier Atmel EMAC macrocell driver by Atmel and Lineo Inc.
* Initial version by Rick Bronson.
*/
#ifndef AT91_ETHERNET
#define AT91_ETHERNET
/* ........................................................................ */
#define MAX_RBUFF_SZ 0x600 /* 1518 rounded up */
#define MAX_RX_DESCR 64 /* max number of receive buffers */
/* ----- Ethernet Buffer definitions ----- */
#define RBF_ADDR 0xfffffffc
#define RBF_OWNER (1<<0)
#define RBF_WRAP (1<<1)
#define RBF_SIZE 0x07ff
struct rbf_t
{
unsigned int addr;
unsigned long size;
};
/*
* Read from a EMAC register.
*/
static inline unsigned long at91_emac_read(unsigned int reg)
{
return __raw_readl(AT91_VA_BASE_EMAC + reg);
}
/*
* Write to a EMAC register.
*/
static inline void at91_emac_write(unsigned int reg, unsigned long value)
{
__raw_writel(value, AT91_VA_BASE_EMAC + reg);
}
#endif
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