1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2010 4 * Reinhard Meyer, reinhard.meyer (at) 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 15 typedef 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
