[net-next-2.6.git] / drivers / dma / ste_dma40_ll.h

/*
 * Copyright (C) ST-Ericsson SA 2007-2010
 * Author: Per Friden <per.friden@stericsson.com> for ST-Ericsson SA
 * Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson SA
 * License terms: GNU General Public License (GPL) version 2
 */
#ifndef STE_DMA40_LL_H
#define STE_DMA40_LL_H

#define D40_DREG_PCBASE		0x400
#define D40_DREG_PCDELTA	(8 * 4)
#define D40_LLI_ALIGN		16 /* LLI alignment must be 16 bytes. */

#define D40_LCPA_CHAN_SIZE 32
#define D40_LCPA_CHAN_DST_DELTA 16

#define D40_TYPE_TO_GROUP(type) (type / 16)
#define D40_TYPE_TO_EVENT(type) (type % 16)

/* Most bits of the CFG register are the same in log as in phy mode */
#define D40_SREG_CFG_MST_POS		15
#define D40_SREG_CFG_TIM_POS		14
#define D40_SREG_CFG_EIM_POS		13
#define D40_SREG_CFG_LOG_INCR_POS	12
#define D40_SREG_CFG_PHY_PEN_POS	12
#define D40_SREG_CFG_PSIZE_POS		10
#define D40_SREG_CFG_ESIZE_POS		 8
#define D40_SREG_CFG_PRI_POS		 7
#define D40_SREG_CFG_LBE_POS		 6
#define D40_SREG_CFG_LOG_GIM_POS	 5
#define D40_SREG_CFG_LOG_MFU_POS	 4
#define D40_SREG_CFG_PHY_TM_POS		 4
#define D40_SREG_CFG_PHY_EVTL_POS	 0


/* Standard channel parameters - basic mode (element register) */
#define D40_SREG_ELEM_PHY_ECNT_POS	16
#define D40_SREG_ELEM_PHY_EIDX_POS	 0

#define D40_SREG_ELEM_PHY_ECNT_MASK	(0xFFFF << D40_SREG_ELEM_PHY_ECNT_POS)

/* Standard channel parameters - basic mode (Link register) */
#define D40_SREG_LNK_PHY_TCP_POS	0
#define D40_SREG_LNK_PHY_LMP_POS	1
#define D40_SREG_LNK_PHY_PRE_POS	2
/*
 * Source  destination link address. Contains the
 * 29-bit byte word aligned address of the reload area.
 */
#define D40_SREG_LNK_PHYS_LNK_MASK	0xFFFFFFF8UL

/* Standard basic channel logical mode */

/* Element register */
#define D40_SREG_ELEM_LOG_ECNT_POS	16
#define D40_SREG_ELEM_LOG_LIDX_POS	 8
#define D40_SREG_ELEM_LOG_LOS_POS	 1
#define D40_SREG_ELEM_LOG_TCP_POS	 0

#define D40_SREG_ELEM_LOG_LIDX_MASK	(0xFF << D40_SREG_ELEM_LOG_LIDX_POS)

/* Link register */
#define D40_DEACTIVATE_EVENTLINE	0x0
#define D40_ACTIVATE_EVENTLINE		0x1
#define D40_EVENTLINE_POS(i)		(2 * i)
#define D40_EVENTLINE_MASK(i)		(0x3 << D40_EVENTLINE_POS(i))

/* Standard basic channel logical params in memory */

/* LCSP0 */
#define D40_MEM_LCSP0_ECNT_POS		16
#define D40_MEM_LCSP0_SPTR_POS		 0

#define D40_MEM_LCSP0_ECNT_MASK		(0xFFFF << D40_MEM_LCSP0_ECNT_POS)
#define D40_MEM_LCSP0_SPTR_MASK		(0xFFFF << D40_MEM_LCSP0_SPTR_POS)

/* LCSP1 */
#define D40_MEM_LCSP1_SPTR_POS		16
#define D40_MEM_LCSP1_SCFG_MST_POS	15
#define D40_MEM_LCSP1_SCFG_TIM_POS	14
#define D40_MEM_LCSP1_SCFG_EIM_POS	13
#define D40_MEM_LCSP1_SCFG_INCR_POS	12
#define D40_MEM_LCSP1_SCFG_PSIZE_POS	10
#define D40_MEM_LCSP1_SCFG_ESIZE_POS	 8
#define D40_MEM_LCSP1_SLOS_POS		 1
#define D40_MEM_LCSP1_STCP_POS		 0

#define D40_MEM_LCSP1_SPTR_MASK		(0xFFFF << D40_MEM_LCSP1_SPTR_POS)
#define D40_MEM_LCSP1_SCFG_TIM_MASK	(0x1 << D40_MEM_LCSP1_SCFG_TIM_POS)
#define D40_MEM_LCSP1_SCFG_INCR_MASK	(0x1 << D40_MEM_LCSP1_SCFG_INCR_POS)
#define D40_MEM_LCSP1_SCFG_PSIZE_MASK	(0x3 << D40_MEM_LCSP1_SCFG_PSIZE_POS)
#define D40_MEM_LCSP1_SLOS_MASK		(0x7F << D40_MEM_LCSP1_SLOS_POS)
#define D40_MEM_LCSP1_STCP_MASK		(0x1 << D40_MEM_LCSP1_STCP_POS)

/* LCSP2 */
#define D40_MEM_LCSP2_ECNT_POS		16

#define D40_MEM_LCSP2_ECNT_MASK		(0xFFFF << D40_MEM_LCSP2_ECNT_POS)

/* LCSP3 */
#define D40_MEM_LCSP3_DCFG_MST_POS	15
#define D40_MEM_LCSP3_DCFG_TIM_POS	14
#define D40_MEM_LCSP3_DCFG_EIM_POS	13
#define D40_MEM_LCSP3_DCFG_INCR_POS	12
#define D40_MEM_LCSP3_DCFG_PSIZE_POS	10
#define D40_MEM_LCSP3_DCFG_ESIZE_POS	 8
#define D40_MEM_LCSP3_DLOS_POS		 1
#define D40_MEM_LCSP3_DTCP_POS		 0

#define D40_MEM_LCSP3_DLOS_MASK		(0x7F << D40_MEM_LCSP3_DLOS_POS)
#define D40_MEM_LCSP3_DTCP_MASK		(0x1 << D40_MEM_LCSP3_DTCP_POS)


/* Standard channel parameter register offsets */
#define D40_CHAN_REG_SSCFG	0x00
#define D40_CHAN_REG_SSELT	0x04
#define D40_CHAN_REG_SSPTR	0x08
#define D40_CHAN_REG_SSLNK	0x0C
#define D40_CHAN_REG_SDCFG	0x10
#define D40_CHAN_REG_SDELT	0x14
#define D40_CHAN_REG_SDPTR	0x18
#define D40_CHAN_REG_SDLNK	0x1C

/* DMA Register Offsets */
#define D40_DREG_GCC		0x000
#define D40_DREG_PRTYP		0x004
#define D40_DREG_PRSME		0x008
#define D40_DREG_PRSMO		0x00C
#define D40_DREG_PRMSE		0x010
#define D40_DREG_PRMSO		0x014
#define D40_DREG_PRMOE		0x018
#define D40_DREG_PRMOO		0x01C
#define D40_DREG_PRMO_PCHAN_BASIC		0x1
#define D40_DREG_PRMO_PCHAN_MODULO		0x2
#define D40_DREG_PRMO_PCHAN_DOUBLE_DST		0x3
#define D40_DREG_PRMO_LCHAN_SRC_PHY_DST_LOG	0x1
#define D40_DREG_PRMO_LCHAN_SRC_LOG_DST_PHY	0x2
#define D40_DREG_PRMO_LCHAN_SRC_LOG_DST_LOG	0x3

#define D40_DREG_LCPA		0x020
#define D40_DREG_LCLA		0x024
#define D40_DREG_ACTIVE		0x050
#define D40_DREG_ACTIVO		0x054
#define D40_DREG_FSEB1		0x058
#define D40_DREG_FSEB2		0x05C
#define D40_DREG_PCMIS		0x060
#define D40_DREG_PCICR		0x064
#define D40_DREG_PCTIS		0x068
#define D40_DREG_PCEIS		0x06C
#define D40_DREG_LCMIS0		0x080
#define D40_DREG_LCMIS1		0x084
#define D40_DREG_LCMIS2		0x088
#define D40_DREG_LCMIS3		0x08C
#define D40_DREG_LCICR0		0x090
#define D40_DREG_LCICR1		0x094
#define D40_DREG_LCICR2		0x098
#define D40_DREG_LCICR3		0x09C
#define D40_DREG_LCTIS0		0x0A0
#define D40_DREG_LCTIS1		0x0A4
#define D40_DREG_LCTIS2		0x0A8
#define D40_DREG_LCTIS3		0x0AC
#define D40_DREG_LCEIS0		0x0B0
#define D40_DREG_LCEIS1		0x0B4
#define D40_DREG_LCEIS2		0x0B8
#define D40_DREG_LCEIS3		0x0BC
#define D40_DREG_STFU		0xFC8
#define D40_DREG_ICFG		0xFCC
#define D40_DREG_PERIPHID0	0xFE0
#define D40_DREG_PERIPHID1	0xFE4
#define D40_DREG_PERIPHID2	0xFE8
#define D40_DREG_PERIPHID2_REV_POS 4
#define D40_DREG_PERIPHID2_REV_MASK (0xf << D40_DREG_PERIPHID2_REV_POS)
#define D40_DREG_PERIPHID2_DESIGNER_MASK 0xf
#define D40_DREG_PERIPHID3	0xFEC
#define D40_DREG_CELLID0	0xFF0
#define D40_DREG_CELLID1	0xFF4
#define D40_DREG_CELLID2	0xFF8
#define D40_DREG_CELLID3	0xFFC

/* LLI related structures */

/**
 * struct d40_phy_lli - The basic configration register for each physical
 * channel.
 *
 * @reg_cfg: The configuration register.
 * @reg_elt: The element register.
 * @reg_ptr: The pointer register.
 * @reg_lnk: The link register.
 *
 * These registers are set up for both physical and logical transfers
 * Note that the bit in each register means differently in logical and
 * physical(standard) mode.
 *
 * This struct must be 16 bytes aligned, and only contain physical registers
 * since it will be directly accessed by the DMA.
 */
struct d40_phy_lli {
	u32 reg_cfg;
	u32 reg_elt;
	u32 reg_ptr;
	u32 reg_lnk;
};

/**
 * struct d40_phy_lli_bidir - struct for a transfer.
 *
 * @src: Register settings for src channel.
 * @dst: Register settings for dst channel.
 *
 * All DMA transfers have a source and a destination.
 */

struct d40_phy_lli_bidir {
	struct d40_phy_lli	*src;
	struct d40_phy_lli	*dst;
};


/**
 * struct d40_log_lli - logical lli configuration
 *
 * @lcsp02: Either maps to register lcsp0 if src or lcsp2 if dst.
 * @lcsp13: Either maps to register lcsp1 if src or lcsp3 if dst.
 *
 * This struct must be 8 bytes aligned since it will be accessed directy by
 * the DMA. Never add any none hw mapped registers to this struct.
 */

struct d40_log_lli {
	u32 lcsp02;
	u32 lcsp13;
};

/**
 * struct d40_log_lli_bidir - For both src and dst
 *
 * @src: pointer to src lli configuration.
 * @dst: pointer to dst lli configuration.
 *
 * You always have a src and a dst when doing DMA transfers.
 */

struct d40_log_lli_bidir {
	struct d40_log_lli *src;
	struct d40_log_lli *dst;
};

/**
 * struct d40_log_lli_full - LCPA layout
 *
 * @lcsp0: Logical Channel Standard Param 0 - Src.
 * @lcsp1: Logical Channel Standard Param 1 - Src.
 * @lcsp2: Logical Channel Standard Param 2 - Dst.
 * @lcsp3: Logical Channel Standard Param 3 - Dst.
 *
 * This struct maps to LCPA physical memory layout. Must map to
 * the hw.
 */
struct d40_log_lli_full {
	u32 lcsp0;
	u32 lcsp1;
	u32 lcsp2;
	u32 lcsp3;
};

/**
 * struct d40_def_lcsp - Default LCSP1 and LCSP3 settings
 *
 * @lcsp3: The default configuration for dst.
 * @lcsp1: The default configuration for src.
 */
struct d40_def_lcsp {
	u32 lcsp3;
	u32 lcsp1;
};

/* Physical channels */

void d40_phy_cfg(struct stedma40_chan_cfg *cfg,
		 u32 *src_cfg,
		 u32 *dst_cfg,
		 bool is_log);

void d40_log_cfg(struct stedma40_chan_cfg *cfg,
		 u32 *lcsp1,
		 u32 *lcsp2);

int d40_phy_sg_to_lli(struct scatterlist *sg,
		      int sg_len,
		      dma_addr_t target,
		      struct d40_phy_lli *lli,
		      dma_addr_t lli_phys,
		      u32 reg_cfg,
		      u32 data_width,
		      int psize);

int d40_phy_fill_lli(struct d40_phy_lli *lli,
		     dma_addr_t data,
		     u32 data_size,
		     int psize,
		     dma_addr_t next_lli,
		     u32 reg_cfg,
		     bool term_int,
		     u32 data_width,
		     bool is_device);

void d40_phy_lli_write(void __iomem *virtbase,
		       u32 phy_chan_num,
		       struct d40_phy_lli *lli_dst,
		       struct d40_phy_lli *lli_src);

/* Logical channels */

void d40_log_fill_lli(struct d40_log_lli *lli,
		      dma_addr_t data,
		      u32 data_size,
		      u32 reg_cfg,
		      u32 data_width,
		      bool addr_inc);

int d40_log_sg_to_dev(struct scatterlist *sg,
		      int sg_len,
		      struct d40_log_lli_bidir *lli,
		      struct d40_def_lcsp *lcsp,
		      u32 src_data_width,
		      u32 dst_data_width,
		      enum dma_data_direction direction,
		      dma_addr_t dev_addr);

int d40_log_sg_to_lli(struct scatterlist *sg,
		      int sg_len,
		      struct d40_log_lli *lli_sg,
		      u32 lcsp13, /* src or dst*/
		      u32 data_width);

void d40_log_lli_lcpa_write(struct d40_log_lli_full *lcpa,
			    struct d40_log_lli *lli_dst,
			    struct d40_log_lli *lli_src,
			    int next);

void d40_log_lli_lcla_write(struct d40_log_lli *lcla,
			    struct d40_log_lli *lli_dst,
			    struct d40_log_lli *lli_src,
			    int next);

#endif /* STE_DMA40_LLI_H */
Commit	Line	Data
8d318a50	1	/*
767a9675 JA	2	* Copyright (C) ST-Ericsson SA 2007-2010
	3	* Author: Per Friden <per.friden@stericsson.com> for ST-Ericsson SA
	4	* Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson SA
8d318a50	5	* License terms: GNU General Public License (GPL) version 2
8d318a50 LW	6	*/
	7	#ifndef STE_DMA40_LL_H
	8	#define STE_DMA40_LL_H
	9
	10	#define D40_DREG_PCBASE 0x400
	11	#define D40_DREG_PCDELTA (8 * 4)
	12	#define D40_LLI_ALIGN 16 /* LLI alignment must be 16 bytes. */
	13
ef1872ec LW	14	#define D40_LCPA_CHAN_SIZE 32
	15	#define D40_LCPA_CHAN_DST_DELTA 16
	16
8d318a50 LW	17	#define D40_TYPE_TO_GROUP(type) (type / 16)
	18	#define D40_TYPE_TO_EVENT(type) (type % 16)
	19
	20	/* Most bits of the CFG register are the same in log as in phy mode */
	21	#define D40_SREG_CFG_MST_POS 15
	22	#define D40_SREG_CFG_TIM_POS 14
	23	#define D40_SREG_CFG_EIM_POS 13
	24	#define D40_SREG_CFG_LOG_INCR_POS 12
	25	#define D40_SREG_CFG_PHY_PEN_POS 12
	26	#define D40_SREG_CFG_PSIZE_POS 10
	27	#define D40_SREG_CFG_ESIZE_POS 8
	28	#define D40_SREG_CFG_PRI_POS 7
	29	#define D40_SREG_CFG_LBE_POS 6
	30	#define D40_SREG_CFG_LOG_GIM_POS 5
	31	#define D40_SREG_CFG_LOG_MFU_POS 4
	32	#define D40_SREG_CFG_PHY_TM_POS 4
	33	#define D40_SREG_CFG_PHY_EVTL_POS 0
	34
	35
	36	/* Standard channel parameters - basic mode (element register) */
	37	#define D40_SREG_ELEM_PHY_ECNT_POS 16
	38	#define D40_SREG_ELEM_PHY_EIDX_POS 0
	39
	40	#define D40_SREG_ELEM_PHY_ECNT_MASK (0xFFFF << D40_SREG_ELEM_PHY_ECNT_POS)
	41
	42	/* Standard channel parameters - basic mode (Link register) */
	43	#define D40_SREG_LNK_PHY_TCP_POS 0
	44	#define D40_SREG_LNK_PHY_LMP_POS 1
	45	#define D40_SREG_LNK_PHY_PRE_POS 2
	46	/*
	47	* Source destination link address. Contains the
	48	* 29-bit byte word aligned address of the reload area.
	49	*/
	50	#define D40_SREG_LNK_PHYS_LNK_MASK 0xFFFFFFF8UL
	51
	52	/* Standard basic channel logical mode */
	53
	54	/* Element register */
	55	#define D40_SREG_ELEM_LOG_ECNT_POS 16
	56	#define D40_SREG_ELEM_LOG_LIDX_POS 8
	57	#define D40_SREG_ELEM_LOG_LOS_POS 1
	58	#define D40_SREG_ELEM_LOG_TCP_POS 0
	59
	60	#define D40_SREG_ELEM_LOG_LIDX_MASK (0xFF << D40_SREG_ELEM_LOG_LIDX_POS)
	61
	62	/* Link register */
	63	#define D40_DEACTIVATE_EVENTLINE 0x0
	64	#define D40_ACTIVATE_EVENTLINE 0x1
	65	#define D40_EVENTLINE_POS(i) (2 * i)
	66	#define D40_EVENTLINE_MASK(i) (0x3 << D40_EVENTLINE_POS(i))
	67
	68	/* Standard basic channel logical params in memory */
	69
	70	/* LCSP0 */
	71	#define D40_MEM_LCSP0_ECNT_POS 16
	72	#define D40_MEM_LCSP0_SPTR_POS 0
	73
	74	#define D40_MEM_LCSP0_ECNT_MASK (0xFFFF << D40_MEM_LCSP0_ECNT_POS)
	75	#define D40_MEM_LCSP0_SPTR_MASK (0xFFFF << D40_MEM_LCSP0_SPTR_POS)
	76
	77	/* LCSP1 */
	78	#define D40_MEM_LCSP1_SPTR_POS 16
	79	#define D40_MEM_LCSP1_SCFG_MST_POS 15
	80	#define D40_MEM_LCSP1_SCFG_TIM_POS 14
81	#define D40_MEM_LCSP1_SCFG_EIM_POS 13
82	#define D40_MEM_LCSP1_SCFG_INCR_POS 12
83	#define D40_MEM_LCSP1_SCFG_PSIZE_POS 10
84	#define D40_MEM_LCSP1_SCFG_ESIZE_POS 8
85	#define D40_MEM_LCSP1_SLOS_POS 1
86	#define D40_MEM_LCSP1_STCP_POS 0
87
88	#define D40_MEM_LCSP1_SPTR_MASK (0xFFFF << D40_MEM_LCSP1_SPTR_POS)
89	#define D40_MEM_LCSP1_SCFG_TIM_MASK (0x1 << D40_MEM_LCSP1_SCFG_TIM_POS)
90	#define D40_MEM_LCSP1_SCFG_INCR_MASK (0x1 << D40_MEM_LCSP1_SCFG_INCR_POS)
91	#define D40_MEM_LCSP1_SCFG_PSIZE_MASK (0x3 << D40_MEM_LCSP1_SCFG_PSIZE_POS)
92	#define D40_MEM_LCSP1_SLOS_MASK (0x7F << D40_MEM_LCSP1_SLOS_POS)
93	#define D40_MEM_LCSP1_STCP_MASK (0x1 << D40_MEM_LCSP1_STCP_POS)
94
95	/* LCSP2 */
96	#define D40_MEM_LCSP2_ECNT_POS 16
97
98	#define D40_MEM_LCSP2_ECNT_MASK (0xFFFF << D40_MEM_LCSP2_ECNT_POS)
99
100	/* LCSP3 */
101	#define D40_MEM_LCSP3_DCFG_MST_POS 15
102	#define D40_MEM_LCSP3_DCFG_TIM_POS 14
103	#define D40_MEM_LCSP3_DCFG_EIM_POS 13
104	#define D40_MEM_LCSP3_DCFG_INCR_POS 12
105	#define D40_MEM_LCSP3_DCFG_PSIZE_POS 10
106	#define D40_MEM_LCSP3_DCFG_ESIZE_POS 8
107	#define D40_MEM_LCSP3_DLOS_POS 1
108	#define D40_MEM_LCSP3_DTCP_POS 0
109
110	#define D40_MEM_LCSP3_DLOS_MASK (0x7F << D40_MEM_LCSP3_DLOS_POS)
111	#define D40_MEM_LCSP3_DTCP_MASK (0x1 << D40_MEM_LCSP3_DTCP_POS)
112
113
114	/* Standard channel parameter register offsets */
115	#define D40_CHAN_REG_SSCFG 0x00
116	#define D40_CHAN_REG_SSELT 0x04
117	#define D40_CHAN_REG_SSPTR 0x08
118	#define D40_CHAN_REG_SSLNK 0x0C
119	#define D40_CHAN_REG_SDCFG 0x10
120	#define D40_CHAN_REG_SDELT 0x14
121	#define D40_CHAN_REG_SDPTR 0x18
122	#define D40_CHAN_REG_SDLNK 0x1C
123
124	/* DMA Register Offsets */
125	#define D40_DREG_GCC 0x000
126	#define D40_DREG_PRTYP 0x004
127	#define D40_DREG_PRSME 0x008
128	#define D40_DREG_PRSMO 0x00C
129	#define D40_DREG_PRMSE 0x010
130	#define D40_DREG_PRMSO 0x014
131	#define D40_DREG_PRMOE 0x018
132	#define D40_DREG_PRMOO 0x01C
20a5b6d0 RV	133	#define D40_DREG_PRMO_PCHAN_BASIC 0x1
	134	#define D40_DREG_PRMO_PCHAN_MODULO 0x2
	135	#define D40_DREG_PRMO_PCHAN_DOUBLE_DST 0x3
	136	#define D40_DREG_PRMO_LCHAN_SRC_PHY_DST_LOG 0x1
	137	#define D40_DREG_PRMO_LCHAN_SRC_LOG_DST_PHY 0x2
	138	#define D40_DREG_PRMO_LCHAN_SRC_LOG_DST_LOG 0x3
	139
8d318a50 LW	140	#define D40_DREG_LCPA 0x020
	141	#define D40_DREG_LCLA 0x024
	142	#define D40_DREG_ACTIVE 0x050
	143	#define D40_DREG_ACTIVO 0x054
	144	#define D40_DREG_FSEB1 0x058
	145	#define D40_DREG_FSEB2 0x05C
	146	#define D40_DREG_PCMIS 0x060
	147	#define D40_DREG_PCICR 0x064
	148	#define D40_DREG_PCTIS 0x068
	149	#define D40_DREG_PCEIS 0x06C
	150	#define D40_DREG_LCMIS0 0x080
	151	#define D40_DREG_LCMIS1 0x084
	152	#define D40_DREG_LCMIS2 0x088
	153	#define D40_DREG_LCMIS3 0x08C
	154	#define D40_DREG_LCICR0 0x090
	155	#define D40_DREG_LCICR1 0x094
	156	#define D40_DREG_LCICR2 0x098
	157	#define D40_DREG_LCICR3 0x09C
	158	#define D40_DREG_LCTIS0 0x0A0
	159	#define D40_DREG_LCTIS1 0x0A4
	160	#define D40_DREG_LCTIS2 0x0A8
	161	#define D40_DREG_LCTIS3 0x0AC
	162	#define D40_DREG_LCEIS0 0x0B0
	163	#define D40_DREG_LCEIS1 0x0B4
	164	#define D40_DREG_LCEIS2 0x0B8
	165	#define D40_DREG_LCEIS3 0x0BC
	166	#define D40_DREG_STFU 0xFC8
	167	#define D40_DREG_ICFG 0xFCC
	168	#define D40_DREG_PERIPHID0 0xFE0
	169	#define D40_DREG_PERIPHID1 0xFE4
	170	#define D40_DREG_PERIPHID2 0xFE8
3ae0267f JA	171	#define D40_DREG_PERIPHID2_REV_POS 4
	172	#define D40_DREG_PERIPHID2_REV_MASK (0xf << D40_DREG_PERIPHID2_REV_POS)
	173	#define D40_DREG_PERIPHID2_DESIGNER_MASK 0xf
8d318a50 LW	174	#define D40_DREG_PERIPHID3 0xFEC
	175	#define D40_DREG_CELLID0 0xFF0
	176	#define D40_DREG_CELLID1 0xFF4
	177	#define D40_DREG_CELLID2 0xFF8
	178	#define D40_DREG_CELLID3 0xFFC
	179
	180	/* LLI related structures */
	181
	182	/**
	183	* struct d40_phy_lli - The basic configration register for each physical
	184	* channel.
	185	*
	186	* @reg_cfg: The configuration register.
	187	* @reg_elt: The element register.
	188	* @reg_ptr: The pointer register.
	189	* @reg_lnk: The link register.
	190	*
	191	* These registers are set up for both physical and logical transfers
	192	* Note that the bit in each register means differently in logical and
	193	* physical(standard) mode.
	194	*
	195	* This struct must be 16 bytes aligned, and only contain physical registers
	196	* since it will be directly accessed by the DMA.
	197	*/
	198	struct d40_phy_lli {
	199	u32 reg_cfg;
	200	u32 reg_elt;
	201	u32 reg_ptr;
	202	u32 reg_lnk;
	203	};
	204
	205	/**
	206	* struct d40_phy_lli_bidir - struct for a transfer.
	207	*
	208	* @src: Register settings for src channel.
	209	* @dst: Register settings for dst channel.
8d318a50 LW	210	*
	211	* All DMA transfers have a source and a destination.
	212	*/
	213
	214	struct d40_phy_lli_bidir {
	215	struct d40_phy_lli *src;
	216	struct d40_phy_lli *dst;
8d318a50 LW	217	};
	218
	219
	220	/**
	221	* struct d40_log_lli - logical lli configuration
	222	*
	223	* @lcsp02: Either maps to register lcsp0 if src or lcsp2 if dst.
	224	* @lcsp13: Either maps to register lcsp1 if src or lcsp3 if dst.
	225	*
	226	* This struct must be 8 bytes aligned since it will be accessed directy by
	227	* the DMA. Never add any none hw mapped registers to this struct.
	228	*/
	229
	230	struct d40_log_lli {
	231	u32 lcsp02;
	232	u32 lcsp13;
	233	};
	234
	235	/**
	236	* struct d40_log_lli_bidir - For both src and dst
	237	*
	238	* @src: pointer to src lli configuration.
	239	* @dst: pointer to dst lli configuration.
	240	*
	241	* You always have a src and a dst when doing DMA transfers.
	242	*/
	243
	244	struct d40_log_lli_bidir {
	245	struct d40_log_lli *src;
	246	struct d40_log_lli *dst;
	247	};
	248
	249	/**
	250	* struct d40_log_lli_full - LCPA layout
	251	*
	252	* @lcsp0: Logical Channel Standard Param 0 - Src.
	253	* @lcsp1: Logical Channel Standard Param 1 - Src.
	254	* @lcsp2: Logical Channel Standard Param 2 - Dst.
	255	* @lcsp3: Logical Channel Standard Param 3 - Dst.
	256	*
	257	* This struct maps to LCPA physical memory layout. Must map to
	258	* the hw.
	259	*/
	260	struct d40_log_lli_full {
	261	u32 lcsp0;
	262	u32 lcsp1;
	263	u32 lcsp2;
	264	u32 lcsp3;
	265	};
	266
	267	/**
	268	* struct d40_def_lcsp - Default LCSP1 and LCSP3 settings
	269	*
	270	* @lcsp3: The default configuration for dst.
	271	* @lcsp1: The default configuration for src.
	272	*/
	273	struct d40_def_lcsp {
	274	u32 lcsp3;
	275	u32 lcsp1;
	276	};
	277
8d318a50 LW	278	/* Physical channels */
	279
	280	void d40_phy_cfg(struct stedma40_chan_cfg *cfg,
767a9675 JA	281	u32 *src_cfg,
	282	u32 *dst_cfg,
	283	bool is_log);
8d318a50 LW	284
8d318a50 LW	285	void d40_log_cfg(struct stedma40_chan_cfg *cfg,
767a9675 JA	286	u32 *lcsp1,
767a9675 JA	287	u32 *lcsp2);
8d318a50 LW	288
	289	int d40_phy_sg_to_lli(struct scatterlist *sg,
	290	int sg_len,
	291	dma_addr_t target,
	292	struct d40_phy_lli *lli,
	293	dma_addr_t lli_phys,
	294	u32 reg_cfg,
	295	u32 data_width,
0246e77b	296	int psize);
8d318a50 LW	297
	298	int d40_phy_fill_lli(struct d40_phy_lli *lli,
	299	dma_addr_t data,
	300	u32 data_size,
	301	int psize,
	302	dma_addr_t next_lli,
	303	u32 reg_cfg,
	304	bool term_int,
	305	u32 data_width,
	306	bool is_device);
	307
	308	void d40_phy_lli_write(void __iomem *virtbase,
	309	u32 phy_chan_num,
	310	struct d40_phy_lli *lli_dst,
	311	struct d40_phy_lli *lli_src);
	312
	313	/* Logical channels */
	314
	315	void d40_log_fill_lli(struct d40_log_lli *lli,
767a9675 JA	316	dma_addr_t data,
767a9675 JA	317	u32 data_size,
767a9675	318	u32 reg_cfg,
8d318a50	319	u32 data_width,
767a9675	320	bool addr_inc);
8d318a50	321
698e4732	322	int d40_log_sg_to_dev(struct scatterlist *sg,
8d318a50 LW	323	int sg_len,
	324	struct d40_log_lli_bidir *lli,
	325	struct d40_def_lcsp *lcsp,
	326	u32 src_data_width,
	327	u32 dst_data_width,
	328	enum dma_data_direction direction,
698e4732 JA	329	dma_addr_t dev_addr);
	330
	331	int d40_log_sg_to_lli(struct scatterlist *sg,
8d318a50 LW	332	int sg_len,
	333	struct d40_log_lli *lli_sg,
	334	u32 lcsp13, /* src or dst*/
698e4732 JA	335	u32 data_width);
	336
	337	void d40_log_lli_lcpa_write(struct d40_log_lli_full *lcpa,
	338	struct d40_log_lli *lli_dst,
	339	struct d40_log_lli *lli_src,
	340	int next);
	341
	342	void d40_log_lli_lcla_write(struct d40_log_lli *lcla,
	343	struct d40_log_lli *lli_dst,
	344	struct d40_log_lli *lli_src,
	345	int next);
8d318a50 LW	346
8d318a50 LW	347	#endif /* STE_DMA40_LLI_H */