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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
* Synopsys DesignWare eDMA v0 core
*
* Author: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
*/
#ifndef _DW_EDMA_V0_REGS_H
#define _DW_EDMA_V0_REGS_H
#include <linux/dmaengine.h>
#define EDMA_V0_MAX_NR_CH 8
#define EDMA_V0_VIEWPORT_MASK GENMASK(2, 0)
#define EDMA_V0_DONE_INT_MASK GENMASK(7, 0)
#define EDMA_V0_ABORT_INT_MASK GENMASK(23, 16)
#define EDMA_V0_WRITE_CH_COUNT_MASK GENMASK(3, 0)
#define EDMA_V0_READ_CH_COUNT_MASK GENMASK(19, 16)
#define EDMA_V0_CH_STATUS_MASK GENMASK(6, 5)
#define EDMA_V0_DOORBELL_CH_MASK GENMASK(2, 0)
#define EDMA_V0_LINKED_LIST_ERR_MASK GENMASK(7, 0)
#define EDMA_V0_CH_ODD_MSI_DATA_MASK GENMASK(31, 16)
#define EDMA_V0_CH_EVEN_MSI_DATA_MASK GENMASK(15, 0)
struct dw_edma_v0_ch_regs {
u32 ch_control1; /* 0x000 */
u32 ch_control2; /* 0x004 */
u32 transfer_size; /* 0x008 */
u32 sar_low; /* 0x00c */
u32 sar_high; /* 0x010 */
u32 dar_low; /* 0x014 */
u32 dar_high; /* 0x018 */
u32 llp_low; /* 0x01c */
u32 llp_high; /* 0x020 */
};
struct dw_edma_v0_ch {
struct dw_edma_v0_ch_regs wr; /* 0x200 */
u32 padding_1[55]; /* [0x224..0x2fc] */
struct dw_edma_v0_ch_regs rd; /* 0x300 */
u32 padding_2[55]; /* [0x324..0x3fc] */
};
struct dw_edma_v0_unroll {
u32 padding_1; /* 0x0f8 */
u32 wr_engine_chgroup; /* 0x100 */
u32 rd_engine_chgroup; /* 0x104 */
u32 wr_engine_hshake_cnt_low; /* 0x108 */
u32 wr_engine_hshake_cnt_high; /* 0x10c */
u32 padding_2[2]; /* [0x110..0x114] */
u32 rd_engine_hshake_cnt_low; /* 0x118 */
u32 rd_engine_hshake_cnt_high; /* 0x11c */
u32 padding_3[2]; /* [0x120..0x124] */
u32 wr_ch0_pwr_en; /* 0x128 */
u32 wr_ch1_pwr_en; /* 0x12c */
u32 wr_ch2_pwr_en; /* 0x130 */
u32 wr_ch3_pwr_en; /* 0x134 */
u32 wr_ch4_pwr_en; /* 0x138 */
u32 wr_ch5_pwr_en; /* 0x13c */
u32 wr_ch6_pwr_en; /* 0x140 */
u32 wr_ch7_pwr_en; /* 0x144 */
u32 padding_4[8]; /* [0x148..0x164] */
u32 rd_ch0_pwr_en; /* 0x168 */
u32 rd_ch1_pwr_en; /* 0x16c */
u32 rd_ch2_pwr_en; /* 0x170 */
u32 rd_ch3_pwr_en; /* 0x174 */
u32 rd_ch4_pwr_en; /* 0x178 */
u32 rd_ch5_pwr_en; /* 0x18c */
u32 rd_ch6_pwr_en; /* 0x180 */
u32 rd_ch7_pwr_en; /* 0x184 */
u32 padding_5[30]; /* [0x188..0x1fc] */
struct dw_edma_v0_ch ch[EDMA_V0_MAX_NR_CH]; /* [0x200..0x1120] */
};
struct dw_edma_v0_legacy {
u32 viewport_sel; /* 0x0f8 */
struct dw_edma_v0_ch_regs ch; /* [0x100..0x120] */
};
struct dw_edma_v0_regs {
/* eDMA global registers */
u32 ctrl_data_arb_prior; /* 0x000 */
u32 padding_1; /* 0x004 */
u32 ctrl; /* 0x008 */
u32 wr_engine_en; /* 0x00c */
u32 wr_doorbell; /* 0x010 */
u32 padding_2; /* 0x014 */
u32 wr_ch_arb_weight_low; /* 0x018 */
u32 wr_ch_arb_weight_high; /* 0x01c */
u32 padding_3[3]; /* [0x020..0x028] */
u32 rd_engine_en; /* 0x02c */
u32 rd_doorbell; /* 0x030 */
u32 padding_4; /* 0x034 */
u32 rd_ch_arb_weight_low; /* 0x038 */
u32 rd_ch_arb_weight_high; /* 0x03c */
u32 padding_5[3]; /* [0x040..0x048] */
/* eDMA interrupts registers */
u32 wr_int_status; /* 0x04c */
u32 padding_6; /* 0x050 */
u32 wr_int_mask; /* 0x054 */
u32 wr_int_clear; /* 0x058 */
u32 wr_err_status; /* 0x05c */
u32 wr_done_imwr_low; /* 0x060 */
u32 wr_done_imwr_high; /* 0x064 */
u32 wr_abort_imwr_low; /* 0x068 */
u32 wr_abort_imwr_high; /* 0x06c */
u32 wr_ch01_imwr_data; /* 0x070 */
u32 wr_ch23_imwr_data; /* 0x074 */
u32 wr_ch45_imwr_data; /* 0x078 */
u32 wr_ch67_imwr_data; /* 0x07c */
u32 padding_7[4]; /* [0x080..0x08c] */
u32 wr_linked_list_err_en; /* 0x090 */
u32 padding_8[3]; /* [0x094..0x09c] */
u32 rd_int_status; /* 0x0a0 */
u32 padding_9; /* 0x0a4 */
u32 rd_int_mask; /* 0x0a8 */
u32 rd_int_clear; /* 0x0ac */
u32 padding_10; /* 0x0b0 */
u32 rd_err_status_low; /* 0x0b4 */
u32 rd_err_status_high; /* 0x0b8 */
u32 padding_11[2]; /* [0x0bc..0x0c0] */
u32 rd_linked_list_err_en; /* 0x0c4 */
u32 padding_12; /* 0x0c8 */
u32 rd_done_imwr_low; /* 0x0cc */
u32 rd_done_imwr_high; /* 0x0d0 */
u32 rd_abort_imwr_low; /* 0x0d4 */
u32 rd_abort_imwr_high; /* 0x0d8 */
u32 rd_ch01_imwr_data; /* 0x0dc */
u32 rd_ch23_imwr_data; /* 0x0e0 */
u32 rd_ch45_imwr_data; /* 0x0e4 */
u32 rd_ch67_imwr_data; /* 0x0e8 */
u32 padding_13[4]; /* [0x0ec..0x0f8] */
/* eDMA channel context grouping */
union dw_edma_v0_type {
struct dw_edma_v0_legacy legacy; /* [0x0f8..0x120] */
struct dw_edma_v0_unroll unroll; /* [0x0f8..0x1120] */
} type;
};
struct dw_edma_v0_lli {
u32 control;
u32 transfer_size;
u32 sar_low;
u32 sar_high;
u32 dar_low;
u32 dar_high;
};
struct dw_edma_v0_llp {
u32 control;
u32 reserved;
u32 llp_low;
u32 llp_high;
};
#endif /* _DW_EDMA_V0_REGS_H */
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