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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * include/linux/atmel_pdc.h
4 *
5 * Copyright (C) 2005 Ivan Kokshaysky
6 * Copyright (C) SAN People
7 *
8 * Peripheral Data Controller (PDC) registers.
9 * Based on AT91RM9200 datasheet revision E.
10 */
11
12#ifndef ATMEL_PDC_H
13#define ATMEL_PDC_H
14
15#define ATMEL_PDC_RPR 0x100 /* Receive Pointer Register */
16#define ATMEL_PDC_RCR 0x104 /* Receive Counter Register */
17#define ATMEL_PDC_TPR 0x108 /* Transmit Pointer Register */
18#define ATMEL_PDC_TCR 0x10c /* Transmit Counter Register */
19#define ATMEL_PDC_RNPR 0x110 /* Receive Next Pointer Register */
20#define ATMEL_PDC_RNCR 0x114 /* Receive Next Counter Register */
21#define ATMEL_PDC_TNPR 0x118 /* Transmit Next Pointer Register */
22#define ATMEL_PDC_TNCR 0x11c /* Transmit Next Counter Register */
23
24#define ATMEL_PDC_PTCR 0x120 /* Transfer Control Register */
25#define ATMEL_PDC_RXTEN (1 << 0) /* Receiver Transfer Enable */
26#define ATMEL_PDC_RXTDIS (1 << 1) /* Receiver Transfer Disable */
27#define ATMEL_PDC_TXTEN (1 << 8) /* Transmitter Transfer Enable */
28#define ATMEL_PDC_TXTDIS (1 << 9) /* Transmitter Transfer Disable */
29
30#define ATMEL_PDC_PTSR 0x124 /* Transfer Status Register */
31
32#define ATMEL_PDC_SCND_BUF_OFF 0x10 /* Offset between first and second buffer registers */
33
34#endif