1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 2010
4 * Reinhard Meyer, reinhard.meyer@emk-elektronik.de
5 *
6 * Debug Unit
7 * Based on AT91SAM9XE datasheet
8 */
9
10#ifndef AT91_DBU_H
11#define AT91_DBU_H
12
13#ifndef __ASSEMBLY__
14
15typedef struct at91_dbu {
16	u32	cr;	/* Control Register WO */
17	u32	mr;	/* Mode Register  RW */
18	u32	ier;	/* Interrupt Enable Register WO */
19	u32	idr;	/* Interrupt Disable Register WO */
20	u32	imr;	/* Interrupt Mask Register RO */
21	u32	sr;	/* Status Register RO */
22	u32	rhr;	/* Receive Holding Register RO */
23	u32	thr;	/* Transmit Holding Register WO */
24	u32	brgr;	/* Baud Rate Generator Register RW */
25	u32	res1[7];/* 0x0024 - 0x003C Reserved */
26	u32	cidr;	/* Chip ID Register RO */
27	u32	exid;	/* Chip ID Extension Register RO */
28	u32	fnr;	/* Force NTRST Register RW */
29} at91_dbu_t;
30
31#endif /* __ASSEMBLY__ */
32
33#define AT91_DBU_CID_ARCH_MASK		0x0ff00000
34#define AT91_DBU_CID_ARCH_9xx		0x01900000
35#define AT91_DBU_CID_ARCH_9XExx	0x02900000
36
37#endif
38