include/linux/atmel_pdc.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * include/linux/atmel_pdc.h
0004  *
0005  * Copyright (C) 2005 Ivan Kokshaysky
0006  * Copyright (C) SAN People
0007  *
0008  * Peripheral Data Controller (PDC) registers.
0009  * Based on AT91RM9200 datasheet revision E.
0010  */
0011
0012 #ifndef ATMEL_PDC_H
0013 #define ATMEL_PDC_H
0014
0015 #define ATMEL_PDC_RPR       0x100   /* Receive Pointer Register */
0016 #define ATMEL_PDC_RCR       0x104   /* Receive Counter Register */
0017 #define ATMEL_PDC_TPR       0x108   /* Transmit Pointer Register */
0018 #define ATMEL_PDC_TCR       0x10c   /* Transmit Counter Register */
0019 #define ATMEL_PDC_RNPR      0x110   /* Receive Next Pointer Register */
0020 #define ATMEL_PDC_RNCR      0x114   /* Receive Next Counter Register */
0021 #define ATMEL_PDC_TNPR      0x118   /* Transmit Next Pointer Register */
0022 #define ATMEL_PDC_TNCR      0x11c   /* Transmit Next Counter Register */
0023
0024 #define ATMEL_PDC_PTCR      0x120   /* Transfer Control Register */
0025 #define     ATMEL_PDC_RXTEN     (1 << 0)    /* Receiver Transfer Enable */
0026 #define     ATMEL_PDC_RXTDIS    (1 << 1)    /* Receiver Transfer Disable */
0027 #define     ATMEL_PDC_TXTEN     (1 << 8)    /* Transmitter Transfer Enable */
0028 #define     ATMEL_PDC_TXTDIS    (1 << 9)    /* Transmitter Transfer Disable */
0029
0030 #define ATMEL_PDC_PTSR      0x124   /* Transfer Status Register */
0031
0032 #define ATMEL_PDC_SCND_BUF_OFF  0x10    /* Offset between first and second buffer registers */
0033
0034 #endif