drivers/dma/dw-edma/dw-edma-v0-regs.h

   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
  27 struct dw_edma_v0_ch_regs {
  28         u32 ch_control1;                                /* 0x000 */
  29         u32 ch_control2;                                /* 0x004 */
  30         u32 transfer_size;                              /* 0x008 */
  31         u32 sar_low;                                    /* 0x00c */
  32         u32 sar_high;                                   /* 0x010 */
  33         u32 dar_low;                                    /* 0x014 */
  34         u32 dar_high;                                   /* 0x018 */
  35         u32 llp_low;                                    /* 0x01c */
  36         u32 llp_high;                                   /* 0x020 */
  37 };
  38
  39 struct dw_edma_v0_ch {
  40         struct dw_edma_v0_ch_regs wr;                   /* 0x200 */
  41         u32 padding_1[55];                              /* [0x224..0x2fc] */
  42         struct dw_edma_v0_ch_regs rd;                   /* 0x300 */
  43         u32 padding_2[55];                              /* [0x324..0x3fc] */
  44 };
  45
  46 struct dw_edma_v0_unroll {
  47         u32 padding_1;                                  /* 0x0f8 */
  48         u32 wr_engine_chgroup;                          /* 0x100 */
  49         u32 rd_engine_chgroup;                          /* 0x104 */
  50         u32 wr_engine_hshake_cnt_low;                   /* 0x108 */
  51         u32 wr_engine_hshake_cnt_high;                  /* 0x10c */
  52         u32 padding_2[2];                               /* [0x110..0x114] */
  53         u32 rd_engine_hshake_cnt_low;                   /* 0x118 */
  54         u32 rd_engine_hshake_cnt_high;                  /* 0x11c */
  55         u32 padding_3[2];                               /* [0x120..0x124] */
  56         u32 wr_ch0_pwr_en;                              /* 0x128 */
  57         u32 wr_ch1_pwr_en;                              /* 0x12c */
  58         u32 wr_ch2_pwr_en;                              /* 0x130 */
  59         u32 wr_ch3_pwr_en;                              /* 0x134 */
  60         u32 wr_ch4_pwr_en;                              /* 0x138 */
  61         u32 wr_ch5_pwr_en;                              /* 0x13c */
  62         u32 wr_ch6_pwr_en;                              /* 0x140 */
  63         u32 wr_ch7_pwr_en;                              /* 0x144 */
  64         u32 padding_4[8];                               /* [0x148..0x164] */
  65         u32 rd_ch0_pwr_en;                              /* 0x168 */
  66         u32 rd_ch1_pwr_en;                              /* 0x16c */
  67         u32 rd_ch2_pwr_en;                              /* 0x170 */
  68         u32 rd_ch3_pwr_en;                              /* 0x174 */
  69         u32 rd_ch4_pwr_en;                              /* 0x178 */
  70         u32 rd_ch5_pwr_en;                              /* 0x18c */
  71         u32 rd_ch6_pwr_en;                              /* 0x180 */
  72         u32 rd_ch7_pwr_en;                              /* 0x184 */
  73         u32 padding_5[30];                              /* [0x188..0x1fc] */
  74         struct dw_edma_v0_ch ch[EDMA_V0_MAX_NR_CH];     /* [0x200..0x1120] */
  75 };
  76
  77 struct dw_edma_v0_legacy {
  78         u32 viewport_sel;                               /* 0x0f8 */
  79         struct dw_edma_v0_ch_regs ch;                   /* [0x100..0x120] */
  80 };
  81
  82 struct dw_edma_v0_regs {
  83         /* eDMA global registers */
  84         u32 ctrl_data_arb_prior;                        /* 0x000 */
  85         u32 padding_1;                                  /* 0x004 */
  86         u32 ctrl;                                       /* 0x008 */
  87         u32 wr_engine_en;                               /* 0x00c */
  88         u32 wr_doorbell;                                /* 0x010 */
  89         u32 padding_2;                                  /* 0x014 */
  90         u32 wr_ch_arb_weight_low;                       /* 0x018 */
  91         u32 wr_ch_arb_weight_high;                      /* 0x01c */
  92         u32 padding_3[3];                               /* [0x020..0x028] */
  93         u32 rd_engine_en;                               /* 0x02c */
  94         u32 rd_doorbell;                                /* 0x030 */
  95         u32 padding_4;                                  /* 0x034 */
  96         u32 rd_ch_arb_weight_low;                       /* 0x038 */
  97         u32 rd_ch_arb_weight_high;                      /* 0x03c */
  98         u32 padding_5[3];                               /* [0x040..0x048] */
  99         /* eDMA interrupts registers */
 100         u32 wr_int_status;                              /* 0x04c */
 101         u32 padding_6;                                  /* 0x050 */
 102         u32 wr_int_mask;                                /* 0x054 */
 103         u32 wr_int_clear;                               /* 0x058 */
 104         u32 wr_err_status;                              /* 0x05c */
 105         u32 wr_done_imwr_low;                           /* 0x060 */
 106         u32 wr_done_imwr_high;                          /* 0x064 */
 107         u32 wr_abort_imwr_low;                          /* 0x068 */
 108         u32 wr_abort_imwr_high;                         /* 0x06c */
 109         u32 wr_ch01_imwr_data;                          /* 0x070 */
 110         u32 wr_ch23_imwr_data;                          /* 0x074 */
 111         u32 wr_ch45_imwr_data;                          /* 0x078 */
 112         u32 wr_ch67_imwr_data;                          /* 0x07c */
 113         u32 padding_7[4];                               /* [0x080..0x08c] */
 114         u32 wr_linked_list_err_en;                      /* 0x090 */
 115         u32 padding_8[3];                               /* [0x094..0x09c] */
 116         u32 rd_int_status;                              /* 0x0a0 */
 117         u32 padding_9;                                  /* 0x0a4 */
 118         u32 rd_int_mask;                                /* 0x0a8 */
 119         u32 rd_int_clear;                               /* 0x0ac */
 120         u32 padding_10;                                 /* 0x0b0 */
 121         u32 rd_err_status_low;                          /* 0x0b4 */
 122         u32 rd_err_status_high;                         /* 0x0b8 */
 123         u32 padding_11[2];                              /* [0x0bc..0x0c0] */
 124         u32 rd_linked_list_err_en;                      /* 0x0c4 */
 125         u32 padding_12;                                 /* 0x0c8 */
 126         u32 rd_done_imwr_low;                           /* 0x0cc */
 127         u32 rd_done_imwr_high;                          /* 0x0d0 */
 128         u32 rd_abort_imwr_low;                          /* 0x0d4 */
 129         u32 rd_abort_imwr_high;                         /* 0x0d8 */
 130         u32 rd_ch01_imwr_data;                          /* 0x0dc */
 131         u32 rd_ch23_imwr_data;                          /* 0x0e0 */
 132         u32 rd_ch45_imwr_data;                          /* 0x0e4 */
 133         u32 rd_ch67_imwr_data;                          /* 0x0e8 */
 134         u32 padding_13[4];                              /* [0x0ec..0x0f8] */
 135         /* eDMA channel context grouping */
 136         union dw_edma_v0_type {
 137                 struct dw_edma_v0_legacy legacy;        /* [0x0f8..0x120] */
 138                 struct dw_edma_v0_unroll unroll;        /* [0x0f8..0x1120] */
 139         } type;
 140 };
 141
 142 struct dw_edma_v0_lli {
 143         u32 control;
 144         u32 transfer_size;
 145         u32 sar_low;
 146         u32 sar_high;
 147         u32 dar_low;
 148         u32 dar_high;
 149 };
 150
 151 struct dw_edma_v0_llp {
 152         u32 control;
 153         u32 reserved;
 154         u32 llp_low;
 155         u32 llp_high;
 156 };
 157
 158 #endif /* _DW_EDMA_V0_REGS_H */