File Index
Files and directories
Sign in
FILE

dw-edma-v0-regs.h

File preview with syntax highlighting.

linux-6.19.14/drivers/dma/dw-edma/dw-edma-v0-regs.h C
  1/* SPDX-License-Identifier: GPL-2.0 */
  2/*
  3 * Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
  4 * Synopsys DesignWare eDMA v0 core
  5 *
  6 * Author: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
  7 */
  8
  9#ifndef _DW_EDMA_V0_REGS_H
 10#define _DW_EDMA_V0_REGS_H
 11
 12#include <linux/dmaengine.h>
 13
 14#define EDMA_V0_MAX_NR_CH				8
 15#define EDMA_V0_VIEWPORT_MASK				GENMASK(2, 0)
 16#define EDMA_V0_DONE_INT_MASK				GENMASK(7, 0)
 17#define EDMA_V0_ABORT_INT_MASK				GENMASK(23, 16)
 18#define EDMA_V0_WRITE_CH_COUNT_MASK			GENMASK(3, 0)
 19#define EDMA_V0_READ_CH_COUNT_MASK			GENMASK(19, 16)
 20#define EDMA_V0_CH_STATUS_MASK				GENMASK(6, 5)
 21#define EDMA_V0_DOORBELL_CH_MASK			GENMASK(2, 0)
 22#define EDMA_V0_LINKED_LIST_ERR_MASK			GENMASK(7, 0)
 23
 24#define EDMA_V0_CH_ODD_MSI_DATA_MASK			GENMASK(31, 16)
 25#define EDMA_V0_CH_EVEN_MSI_DATA_MASK			GENMASK(15, 0)
 26
 27struct dw_edma_v0_ch_regs {
 28	u32 ch_control1;				/* 0x0000 */
 29	u32 ch_control2;				/* 0x0004 */
 30	u32 transfer_size;				/* 0x0008 */
 31	union {
 32		u64 reg;				/* 0x000c..0x0010 */
 33		struct {
 34			u32 lsb;			/* 0x000c */
 35			u32 msb;			/* 0x0010 */
 36		};
 37	} sar;
 38	union {
 39		u64 reg;				/* 0x0014..0x0018 */
 40		struct {
 41			u32 lsb;			/* 0x0014 */
 42			u32 msb;			/* 0x0018 */
 43		};
 44	} dar;
 45	union {
 46		u64 reg;				/* 0x001c..0x0020 */
 47		struct {
 48			u32 lsb;			/* 0x001c */
 49			u32 msb;			/* 0x0020 */
 50		};
 51	} llp;
 52} __packed;
 53
 54struct dw_edma_v0_ch {
 55	struct dw_edma_v0_ch_regs wr;			/* 0x0200 */
 56	u32 padding_1[55];				/* 0x0224..0x02fc */
 57	struct dw_edma_v0_ch_regs rd;			/* 0x0300 */
 58	u32 padding_2[55];				/* 0x0324..0x03fc */
 59} __packed;
 60
 61struct dw_edma_v0_unroll {
 62	u32 padding_1;					/* 0x00f8 */
 63	u32 wr_engine_chgroup;				/* 0x0100 */
 64	u32 rd_engine_chgroup;				/* 0x0104 */
 65	union {
 66		u64 reg;				/* 0x0108..0x010c */
 67		struct {
 68			u32 lsb;			/* 0x0108 */
 69			u32 msb;			/* 0x010c */
 70		};
 71	} wr_engine_hshake_cnt;
 72	u32 padding_2[2];				/* 0x0110..0x0114 */
 73	union {
 74		u64 reg;				/* 0x0120..0x0124 */
 75		struct {
 76			u32 lsb;			/* 0x0120 */
 77			u32 msb;			/* 0x0124 */
 78		};
 79	} rd_engine_hshake_cnt;
 80	u32 padding_3[2];				/* 0x0120..0x0124 */
 81	u32 wr_ch0_pwr_en;				/* 0x0128 */
 82	u32 wr_ch1_pwr_en;				/* 0x012c */
 83	u32 wr_ch2_pwr_en;				/* 0x0130 */
 84	u32 wr_ch3_pwr_en;				/* 0x0134 */
 85	u32 wr_ch4_pwr_en;				/* 0x0138 */
 86	u32 wr_ch5_pwr_en;				/* 0x013c */
 87	u32 wr_ch6_pwr_en;				/* 0x0140 */
 88	u32 wr_ch7_pwr_en;				/* 0x0144 */
 89	u32 padding_4[8];				/* 0x0148..0x0164 */
 90	u32 rd_ch0_pwr_en;				/* 0x0168 */
 91	u32 rd_ch1_pwr_en;				/* 0x016c */
 92	u32 rd_ch2_pwr_en;				/* 0x0170 */
 93	u32 rd_ch3_pwr_en;				/* 0x0174 */
 94	u32 rd_ch4_pwr_en;				/* 0x0178 */
 95	u32 rd_ch5_pwr_en;				/* 0x018c */
 96	u32 rd_ch6_pwr_en;				/* 0x0180 */
 97	u32 rd_ch7_pwr_en;				/* 0x0184 */
 98	u32 padding_5[30];				/* 0x0188..0x01fc */
 99	struct dw_edma_v0_ch ch[EDMA_V0_MAX_NR_CH];	/* 0x0200..0x1120 */
100} __packed;
101
102struct dw_edma_v0_legacy {
103	u32 viewport_sel;				/* 0x00f8 */
104	struct dw_edma_v0_ch_regs ch;			/* 0x0100..0x0120 */
105} __packed;
106
107struct dw_edma_v0_regs {
108	/* eDMA global registers */
109	u32 ctrl_data_arb_prior;			/* 0x0000 */
110	u32 padding_1;					/* 0x0004 */
111	u32 ctrl;					/* 0x0008 */
112	u32 wr_engine_en;				/* 0x000c */
113	u32 wr_doorbell;				/* 0x0010 */
114	u32 padding_2;					/* 0x0014 */
115	union {
116		u64 reg;				/* 0x0018..0x001c */
117		struct {
118			u32 lsb;			/* 0x0018 */
119			u32 msb;			/* 0x001c */
120		};
121	} wr_ch_arb_weight;
122	u32 padding_3[3];				/* 0x0020..0x0028 */
123	u32 rd_engine_en;				/* 0x002c */
124	u32 rd_doorbell;				/* 0x0030 */
125	u32 padding_4;					/* 0x0034 */
126	union {
127		u64 reg;				/* 0x0038..0x003c */
128		struct {
129			u32 lsb;			/* 0x0038 */
130			u32 msb;			/* 0x003c */
131		};
132	} rd_ch_arb_weight;
133	u32 padding_5[3];				/* 0x0040..0x0048 */
134	/* eDMA interrupts registers */
135	u32 wr_int_status;				/* 0x004c */
136	u32 padding_6;					/* 0x0050 */
137	u32 wr_int_mask;				/* 0x0054 */
138	u32 wr_int_clear;				/* 0x0058 */
139	u32 wr_err_status;				/* 0x005c */
140	union {
141		u64 reg;				/* 0x0060..0x0064 */
142		struct {
143			u32 lsb;			/* 0x0060 */
144			u32 msb;			/* 0x0064 */
145		};
146	} wr_done_imwr;
147	union {
148		u64 reg;				/* 0x0068..0x006c */
149		struct {
150			u32 lsb;			/* 0x0068 */
151			u32 msb;			/* 0x006c */
152		};
153	} wr_abort_imwr;
154	u32 wr_ch01_imwr_data;				/* 0x0070 */
155	u32 wr_ch23_imwr_data;				/* 0x0074 */
156	u32 wr_ch45_imwr_data;				/* 0x0078 */
157	u32 wr_ch67_imwr_data;				/* 0x007c */
158	u32 padding_7[4];				/* 0x0080..0x008c */
159	u32 wr_linked_list_err_en;			/* 0x0090 */
160	u32 padding_8[3];				/* 0x0094..0x009c */
161	u32 rd_int_status;				/* 0x00a0 */
162	u32 padding_9;					/* 0x00a4 */
163	u32 rd_int_mask;				/* 0x00a8 */
164	u32 rd_int_clear;				/* 0x00ac */
165	u32 padding_10;					/* 0x00b0 */
166	union {
167		u64 reg;				/* 0x00b4..0x00b8 */
168		struct {
169			u32 lsb;			/* 0x00b4 */
170			u32 msb;			/* 0x00b8 */
171		};
172	} rd_err_status;
173	u32 padding_11[2];				/* 0x00bc..0x00c0 */
174	u32 rd_linked_list_err_en;			/* 0x00c4 */
175	u32 padding_12;					/* 0x00c8 */
176	union {
177		u64 reg;				/* 0x00cc..0x00d0 */
178		struct {
179			u32 lsb;			/* 0x00cc */
180			u32 msb;			/* 0x00d0 */
181		};
182	} rd_done_imwr;
183	union {
184		u64 reg;				/* 0x00d4..0x00d8 */
185		struct {
186			u32 lsb;			/* 0x00d4 */
187			u32 msb;			/* 0x00d8 */
188		};
189	} rd_abort_imwr;
190	u32 rd_ch01_imwr_data;				/* 0x00dc */
191	u32 rd_ch23_imwr_data;				/* 0x00e0 */
192	u32 rd_ch45_imwr_data;				/* 0x00e4 */
193	u32 rd_ch67_imwr_data;				/* 0x00e8 */
194	u32 padding_13[4];				/* 0x00ec..0x00f8 */
195	/* eDMA channel context grouping */
196	union dw_edma_v0_type {
197		struct dw_edma_v0_legacy legacy;	/* 0x00f8..0x0120 */
198		struct dw_edma_v0_unroll unroll;	/* 0x00f8..0x1120 */
199	} type;
200} __packed;
201
202struct dw_edma_v0_lli {
203	u32 control;
204	u32 transfer_size;
205	union {
206		u64 reg;
207		struct {
208			u32 lsb;
209			u32 msb;
210		};
211	} sar;
212	union {
213		u64 reg;
214		struct {
215			u32 lsb;
216			u32 msb;
217		};
218	} dar;
219} __packed;
220
221struct dw_edma_v0_llp {
222	u32 control;
223	u32 reserved;
224	union {
225		u64 reg;
226		struct {
227			u32 lsb;
228			u32 msb;
229		};
230	} llp;
231} __packed;
232
233#endif /* _DW_EDMA_V0_REGS_H */
~/ Read-only file preview.