board/micronas/vct/scc.h

   1 /*
   2  * (C) Copyright 2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
   3  *
   4  * Copyright (C) 2006 Micronas GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19  * MA 02111-1307 USA
  20  */
  21
  22 #ifndef _SCC_H
  23 #define _SCC_H
  24
  25 #define DMA_READ                0       /* SCC read  DMA                */
  26 #define DMA_WRITE               1       /* SCC write DMA                */
  27
  28 #define DMA_LINEAR              0       /* DMA linear buffer access method */
  29 #define DMA_CYCLIC              1       /* DMA cyclic buffer access method */
  30
  31 #define DMA_START               0       /* DMA command - start DMA      */
  32 #define DMA_STOP                1       /* DMA command - stop  DMA      */
  33 #define DMA_START_FH_RESET      2       /* DMA command - start DMA reset FH */
  34 #define DMA_TAKEOVER            15      /* DMA command - commit the DMA conf */
  35
  36 #define AGU_ACTIVE              0       /* enable AGU address calculation */
  37 #define AGU_BYPASS              1       /* set AGU to bypass mode       */
  38
  39 #define USE_NO_FH               0       /* order the DMA to not use FH  */
  40 #define USE_FH                  1       /* order the DMA to work with FH*/
  41
  42 #define SCC_DBG_IDLE            0       /* DEBUG status (idle interfaces) */
  43 #define SCC_DBG_SYNC_RES        0x0001  /* synchronuous reset           */
  44
  45 #define SCC_TO_IMMEDIATE        1       /* takeover command issued immediately*/
  46 #define TO_DMA_CFG              2       /* takeover command for the DMA config*/
  47
  48 #define DMA_CMD_RESET           0
  49 #define DMA_CMD_SETUP           1
  50 #define DMA_CMD_START           2
  51 #define DMA_CMD_STOP            3
  52
  53 #define DMA_STATE_RESET         0
  54 #define DMA_STATE_SETUP         1
  55 #define DMA_STATE_START         2
  56 #define DMA_STATE_ERROR         3
  57
  58 #define SRMD                    0
  59 #define STRM_D                  1
  60 #define STRM_P                  2
  61
  62 /*
  63  * Slowest Monterey domain is DVP 27 MHz (324/27 = 12; 12*16 = 192 CPU clocks)
  64  */
  65 #define RESET_TIME              2       /* cycle calc see in SCC_Reset  */
  66
  67 struct scc_descriptor {
  68         char *pu_name;          /* PU identifier                        */
  69         char *scc_instance;     /* SCC Name                             */
  70         u32 profile;            /* SCC VCI_D profile                    */
  71
  72         u32 base_address;       /* base address of the SCC unit reg shell*/
  73
  74         /* SCS Interconnect configuration */
  75         u32 p_scc_id;           /* instance number of SCC unit          */
  76         u32 p_mci_id;           /* memory channel ID                    */
  77
  78         /* DMA Registers configuration */
  79         u32 p_dma_channels_rd;  /* Number of Read DMA channels          */
  80         u32 p_dma_channels_wr;  /* Number of Write DMA channels         */
  81
  82         u32 p_dma_packet_desc;  /* Number of packet descriptors         */
  83         u32 p_dma_mci_desc;     /* Number of MCI_CFG Descriptors        */
  84
  85         int use_fh;             /* the flag tells if SCC uses an FH     */
  86
  87         int p_si2ocp_id;        /* instance number of SI2OCP unit       */
  88         int hw_dma_cfg;         /* HW or SW DMA config flag             */
  89         int hw_dma_start;       /* HW or SW DMA start/stop flag         */
  90
  91         u32 *buffer_tag_list;   /* list of the buffer tags available    */
  92         u32 *csize_list;        /* list of the valid CSIZE values       */
  93 };
  94
  95 struct scc_dma_state {
  96         u32 scc_id:8;           /* SCC id                               */
  97         u32 dma_id:8;           /* DMA id, used for match with array idx*/
  98         u32 buffer_tag:8;       /* mem buf tag, assigned to this DMA    */
  99         u32 dma_status:2;       /* state of DMA, of the DMA_STATE_ const*/
 100         u32 dma_drs:2;          /* DMA dir, either DMA_READ or DMA_WRITE*/
 101         u32 dma_cmd:4;          /* last executed command on this DMA    */
 102 };
 103
 104 union scc_cmd {
 105         u32 reg;
 106         struct {
 107                 u32 res1:19;    /* reserved                             */
 108                 u32 drs:1;      /* DMA Register Set                     */
 109                 u32 rid:2;      /* Register Identifier                  */
 110                 u32 id:6;       /* DMA Identifier                       */
 111                 u32 action:4;   /* DMA Command encoding                 */
 112         } bits;
 113 };
 114
 115 union scc_dma_cfg {
 116         u32 reg;
 117         struct {
 118                 u32 res1:17;            /* reserved                     */
 119                 u32 agu_mode:1;         /* AGU Mode                     */
 120                 u32 res2:1;             /* reserved                     */
 121                 u32 fh_mode:1;          /* Fifo Handler                 */
 122                 u32 buffer_type:1;      /* Defines type of mem buffers  */
 123                 u32 mci_cfg_id:1;       /* MCI_CFG register selector    */
 124                 u32 packet_cfg_id:1;    /* PACKET_CFG register selector */
 125                 u32 buffer_id:8;        /* DMA Buffer Identifier        */
 126         } bits;
 127 };
 128
 129 union scc_debug {
 130         u32 reg;
 131         struct {
 132                 u32 res1:20;    /* reserved                             */
 133                 u32 arg:8;      /* SCC Debug Command Argument (#)       */
 134                 u32 cmd:4;      /* SCC Debug Command Register           */
 135         } bits;
 136 };
 137
 138 union scc_softwareconfiguration {
 139         u32 reg;
 140         struct {
 141                 u32 res1:28;            /* reserved                     */
 142                 u32 clock_status:1;     /* clock on/off                 */
 143                 u32 packet_select:1;    /* active SCC packet id         */
 144                 u32 enable_status:1;    /* enabled [1/0]                */
 145                 u32 active_status:1;    /* 1=active  0=reset            */
 146         } bits;
 147 };
 148
 149 /*
 150  * System on Chip Channel ID
 151  */
 152 enum scc_id {
 153         SCC_NULL = -1,          /* illegal SCC identifier               */
 154         SCC_FE_3DCOMB_WR,       /* SCC_FE_3DCOMB Write channel          */
 155         SCC_FE_3DCOMB_RD,       /* SCC_FE_3DCOMB Read channel           */
 156         SCC_DI_TNR_WR,          /* SCC_DI_TNR Write channel             */
 157         SCC_DI_TNR_FIELD_RD,    /* SCC_DI_TNR_FIELD Read channel        */
 158         SCC_DI_TNR_FRAME_RD,    /* SCC_DI_TNR_FRAME Read channel        */
 159         SCC_DI_MVAL_WR,         /* SCC_DI_MVAL Write channel            */
 160         SCC_DI_MVAL_RD,         /* SCC_DI_MVAL Read channel             */
 161         SCC_RC_FRAME_WR,        /* SCC_RC_FRAME Write channel           */
 162         SCC_RC_FRAME0_RD,       /* SCC_RC_FRAME0 Read channel           */
 163         SCC_OPT_FIELD0_RD,      /* SCC_OPT_FIELD0 Read channel          */
 164         SCC_OPT_FIELD1_RD,      /* SCC_OPT_FIELD1 Read channel          */
 165         SCC_OPT_FIELD2_RD,      /* SCC_OPT_FIELD2 Read channel          */
 166         SCC_PIP_FRAME_WR,       /* SCC_PIP_FRAME Write channel          */
 167         SCC_PIP_FRAME_RD,       /* SCC_PIP_FRAME Read channel           */
 168         SCC_DP_AGPU_RD,         /* SCC_DP_AGPU Read channel             */
 169         SCC_EWARP_RW,           /* SCC_EWARP Read/Write channel         */
 170         SCC_DP_OSD_RD,          /* SCC_DP_OSD Read channel              */
 171         SCC_DP_GRAPHIC_RD,      /* SCC_DP_GRAPHIC Read channel          */
 172         SCC_DVP_OSD_RD,         /* SCC_DVP_OSD Read channel             */
 173         SCC_DVP_VBI_RD,         /* SCC_DVP_VBI Read channel             */
 174         SCC_TSIO_WR,            /* SCC_TSIO Write channel               */
 175         SCC_TSIO_RD,            /* SCC_TSIO Read channel                */
 176         SCC_TSD_WR,             /* SCC_TSD Write channel                */
 177         SCC_VD_UD_ST_RW,        /* SCC_VD_UD_ST Read/Write channel      */
 178         SCC_VD_FRR_RD,          /* SCC_VD_FRR Read channel              */
 179         SCC_VD_FRW_DISP_WR,     /* SCC_VD_FRW_DISP Write channel        */
 180         SCC_MR_VD_M_Y_RD,       /* SCC_MR_VD_M_Y Read channel           */
 181         SCC_MR_VD_M_C_RD,       /* SCC_MR_VD_M_C Read channel           */
 182         SCC_MR_VD_S_Y_RD,       /* SCC_MR_VD_S_Y Read channel           */
 183         SCC_MR_VD_S_C_RD,       /* SCC_MR_VD_S_C Read channel           */
 184         SCC_GA_WR,              /* SCC_GA Write channel                 */
 185         SCC_GA_SRC1_RD,         /* SCC_GA_SRC1 Read channel             */
 186         SCC_GA_SRC2_RD,         /* SCC_GA_SRC2 Read channel             */
 187         SCC_AD_RD,              /* SCC_AD Read channel                  */
 188         SCC_AD_WR,              /* SCC_AD Write channel                 */
 189         SCC_ABP_RD,             /* SCC_ABP Read channel                 */
 190         SCC_ABP_WR,             /* SCC_ABP Write channel                */
 191         SCC_EBI_RW,             /* SCC_EBI Read/Write channel           */
 192         SCC_USB_RW,             /* SCC_USB Read/Write channel           */
 193         SCC_CPU1_SPDMA_RW,      /* SCC_CPU1_SPDMA Read/Write channel    */
 194         SCC_CPU1_BRIDGE_RW,     /* SCC_CPU1_BRIDGE Read/Write channel   */
 195         SCC_MAX                 /* maximum limit on the SCC id          */
 196 };
 197
 198 int scc_set_usb_address_generation_mode(u32 agu_mode);
 199 int scc_dma_cmd(enum scc_id id, u32 cmd, u32 dma_id, u32 drs);
 200 int scc_setup_dma(enum scc_id id, u32 buffer_tag,
 201                   u32 type, u32 fh_mode, u32 drs, u32 dma_id);
 202 int scc_enable(enum scc_id id, u32 value);
 203 int scc_reset(enum scc_id id, u32 value);
 204
 205 #endif /* _SCC_H */