/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
*
* Copyright (C) 2006 Micronas GmbH
*/
#ifndef _SCC_H
#define _SCC_H
#define DMA_READ 0 /* SCC read DMA */
#define DMA_WRITE 1 /* SCC write DMA */
#define DMA_LINEAR 0 /* DMA linear buffer access method */
#define DMA_CYCLIC 1 /* DMA cyclic buffer access method */
#define DMA_START 0 /* DMA command - start DMA */
#define DMA_STOP 1 /* DMA command - stop DMA */
#define DMA_START_FH_RESET 2 /* DMA command - start DMA reset FH */
#define DMA_TAKEOVER 15 /* DMA command - commit the DMA conf */
#define AGU_ACTIVE 0 /* enable AGU address calculation */
#define AGU_BYPASS 1 /* set AGU to bypass mode */
#define USE_NO_FH 0 /* order the DMA to not use FH */
#define USE_FH 1 /* order the DMA to work with FH*/
#define SCC_DBG_IDLE 0 /* DEBUG status (idle interfaces) */
#define SCC_DBG_SYNC_RES 0x0001 /* synchronuous reset */
#define SCC_TO_IMMEDIATE 1 /* takeover command issued immediately*/
#define TO_DMA_CFG 2 /* takeover command for the DMA config*/
#define DMA_CMD_RESET 0
#define DMA_CMD_SETUP 1
#define DMA_CMD_START 2
#define DMA_CMD_STOP 3
#define DMA_STATE_RESET 0
#define DMA_STATE_SETUP 1
#define DMA_STATE_START 2
#define DMA_STATE_ERROR 3
#define SRMD 0
#define STRM_D 1
#define STRM_P 2
/*
* Slowest Monterey domain is DVP 27 MHz (324/27 = 12; 12*16 = 192 CPU clocks)
*/
#define RESET_TIME 2 /* cycle calc see in SCC_Reset */
struct scc_descriptor {
char *pu_name; /* PU identifier */
char *scc_instance; /* SCC Name */
u32 profile; /* SCC VCI_D profile */
u32 base_address; /* base address of the SCC unit reg shell*/
/* SCS Interconnect configuration */
u32 p_scc_id; /* instance number of SCC unit */
u32 p_mci_id; /* memory channel ID */
/* DMA Registers configuration */
u32 p_dma_channels_rd; /* Number of Read DMA channels */
u32 p_dma_channels_wr; /* Number of Write DMA channels */
u32 p_dma_packet_desc; /* Number of packet descriptors */
u32 p_dma_mci_desc; /* Number of MCI_CFG Descriptors */
int use_fh; /* the flag tells if SCC uses an FH */
int p_si2ocp_id; /* instance number of SI2OCP unit */
int hw_dma_cfg; /* HW or SW DMA config flag */
int hw_dma_start; /* HW or SW DMA start/stop flag */
u32 *buffer_tag_list; /* list of the buffer tags available */
u32 *csize_list; /* list of the valid CSIZE values */
};
struct scc_dma_state {
u32 scc_id:8; /* SCC id */
u32 dma_id:8; /* DMA id, used for match with array idx*/
u32 buffer_tag:8; /* mem buf tag, assigned to this DMA */
u32 dma_status:2; /* state of DMA, of the DMA_STATE_ const*/
u32 dma_drs:2; /* DMA dir, either DMA_READ or DMA_WRITE*/
u32 dma_cmd:4; /* last executed command on this DMA */
};
union scc_cmd {
u32 reg;
struct {
u32 res1:19; /* reserved */
u32 drs:1; /* DMA Register Set */
u32 rid:2; /* Register Identifier */
u32 id:6; /* DMA Identifier */
u32 action:4; /* DMA Command encoding */
} bits;
};
union scc_dma_cfg {
u32 reg;
struct {
u32 res1:17; /* reserved */
u32 agu_mode:1; /* AGU Mode */
u32 res2:1; /* reserved */
u32 fh_mode:1; /* Fifo Handler */
u32 buffer_type:1; /* Defines type of mem buffers */
u32 mci_cfg_id:1; /* MCI_CFG register selector */
u32 packet_cfg_id:1; /* PACKET_CFG register selector */
u32 buffer_id:8; /* DMA Buffer Identifier */
} bits;
};
union scc_debug {
u32 reg;
struct {
u32 res1:20; /* reserved */
u32 arg:8; /* SCC Debug Command Argument (#) */
u32 cmd:4; /* SCC Debug Command Register */
} bits;
};
union scc_softwareconfiguration {
u32 reg;
struct {
u32 res1:28; /* reserved */
u32 clock_status:1; /* clock on/off */
u32 packet_select:1; /* active SCC packet id */
u32 enable_status:1; /* enabled [1/0] */
u32 active_status:1; /* 1=active 0=reset */
} bits;
};
/*
* System on Chip Channel ID
*/
enum scc_id {
SCC_NULL = -1, /* illegal SCC identifier */
SCC_FE_3DCOMB_WR, /* SCC_FE_3DCOMB Write channel */
SCC_FE_3DCOMB_RD, /* SCC_FE_3DCOMB Read channel */
SCC_DI_TNR_WR, /* SCC_DI_TNR Write channel */
SCC_DI_TNR_FIELD_RD, /* SCC_DI_TNR_FIELD Read channel */
SCC_DI_TNR_FRAME_RD, /* SCC_DI_TNR_FRAME Read channel */
SCC_DI_MVAL_WR, /* SCC_DI_MVAL Write channel */
SCC_DI_MVAL_RD, /* SCC_DI_MVAL Read channel */
SCC_RC_FRAME_WR, /* SCC_RC_FRAME Write channel */
SCC_RC_FRAME0_RD, /* SCC_RC_FRAME0 Read channel */
SCC_OPT_FIELD0_RD, /* SCC_OPT_FIELD0 Read channel */
SCC_OPT_FIELD1_RD, /* SCC_OPT_FIELD1 Read channel */
SCC_OPT_FIELD2_RD, /* SCC_OPT_FIELD2 Read channel */
SCC_PIP_FRAME_WR, /* SCC_PIP_FRAME Write channel */
SCC_PIP_FRAME_RD, /* SCC_PIP_FRAME Read channel */
SCC_DP_AGPU_RD, /* SCC_DP_AGPU Read channel */
SCC_EWARP_RW, /* SCC_EWARP Read/Write channel */
SCC_DP_OSD_RD, /* SCC_DP_OSD Read channel */
SCC_DP_GRAPHIC_RD, /* SCC_DP_GRAPHIC Read channel */
SCC_DVP_OSD_RD, /* SCC_DVP_OSD Read channel */
SCC_DVP_VBI_RD, /* SCC_DVP_VBI Read channel */
SCC_TSIO_WR, /* SCC_TSIO Write channel */
SCC_TSIO_RD, /* SCC_TSIO Read channel */
SCC_TSD_WR, /* SCC_TSD Write channel */
SCC_VD_UD_ST_RW, /* SCC_VD_UD_ST Read/Write channel */
SCC_VD_FRR_RD, /* SCC_VD_FRR Read channel */
SCC_VD_FRW_DISP_WR, /* SCC_VD_FRW_DISP Write channel */
SCC_MR_VD_M_Y_RD, /* SCC_MR_VD_M_Y Read channel */
SCC_MR_VD_M_C_RD, /* SCC_MR_VD_M_C Read channel */
SCC_MR_VD_S_Y_RD, /* SCC_MR_VD_S_Y Read channel */
SCC_MR_VD_S_C_RD, /* SCC_MR_VD_S_C Read channel */
SCC_GA_WR, /* SCC_GA Write channel */
SCC_GA_SRC1_RD, /* SCC_GA_SRC1 Read channel */
SCC_GA_SRC2_RD, /* SCC_GA_SRC2 Read channel */
SCC_AD_RD, /* SCC_AD Read channel */
SCC_AD_WR, /* SCC_AD Write channel */
SCC_ABP_RD, /* SCC_ABP Read channel */
SCC_ABP_WR, /* SCC_ABP Write channel */
SCC_EBI_RW, /* SCC_EBI Read/Write channel */
SCC_USB_RW, /* SCC_USB Read/Write channel */
SCC_CPU1_SPDMA_RW, /* SCC_CPU1_SPDMA Read/Write channel */
SCC_CPU1_BRIDGE_RW, /* SCC_CPU1_BRIDGE Read/Write channel */
SCC_MAX /* maximum limit on the SCC id */
};
int scc_set_usb_address_generation_mode(u32 agu_mode);
int scc_dma_cmd(enum scc_id id, u32 cmd, u32 dma_id, u32 drs);
int scc_setup_dma(enum scc_id id, u32 buffer_tag,
u32 type, u32 fh_mode, u32 drs, u32 dma_id);
int scc_enable(enum scc_id id, u32 value);
int scc_reset(enum scc_id id, u32 value);
#endif /* _SCC_H */