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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2023 Cai Huoqing
* Synopsys DesignWare HDMA v0 reg
*
* Author: Cai Huoqing <cai.huoqing@linux.dev>
*/
#ifndef _DW_HDMA_V0_REGS_H
#define _DW_HDMA_V0_REGS_H
#include <linux/dmaengine.h>
#define HDMA_V0_MAX_NR_CH 8
#define HDMA_V0_LOCAL_ABORT_INT_EN BIT(6)
#define HDMA_V0_REMOTE_ABORT_INT_EN BIT(5)
#define HDMA_V0_LOCAL_STOP_INT_EN BIT(4)
#define HDMA_V0_REMOTE_STOP_INT_EN BIT(3)
#define HDMA_V0_ABORT_INT_MASK BIT(2)
#define HDMA_V0_STOP_INT_MASK BIT(0)
#define HDMA_V0_LINKLIST_EN BIT(0)
#define HDMA_V0_CONSUMER_CYCLE_STAT BIT(1)
#define HDMA_V0_CONSUMER_CYCLE_BIT BIT(0)
#define HDMA_V0_DOORBELL_START BIT(0)
#define HDMA_V0_CH_STATUS_MASK GENMASK(1, 0)
struct dw_hdma_v0_ch_regs {
u32 ch_en; /* 0x0000 */
u32 doorbell; /* 0x0004 */
u32 prefetch; /* 0x0008 */
u32 handshake; /* 0x000c */
union {
u64 reg; /* 0x0010..0x0014 */
struct {
u32 lsb; /* 0x0010 */
u32 msb; /* 0x0014 */
};
} llp;
u32 cycle_sync; /* 0x0018 */
u32 transfer_size; /* 0x001c */
union {
u64 reg; /* 0x0020..0x0024 */
struct {
u32 lsb; /* 0x0020 */
u32 msb; /* 0x0024 */
};
} sar;
union {
u64 reg; /* 0x0028..0x002c */
struct {
u32 lsb; /* 0x0028 */
u32 msb; /* 0x002c */
};
} dar;
u32 watermark_en; /* 0x0030 */
u32 control1; /* 0x0034 */
u32 func_num; /* 0x0038 */
u32 qos; /* 0x003c */
u32 padding_1[16]; /* 0x0040..0x007c */
u32 ch_stat; /* 0x0080 */
u32 int_stat; /* 0x0084 */
u32 int_setup; /* 0x0088 */
u32 int_clear; /* 0x008c */
union {
u64 reg; /* 0x0090..0x0094 */
struct {
u32 lsb; /* 0x0090 */
u32 msb; /* 0x0094 */
};
} msi_stop;
union {
u64 reg; /* 0x0098..0x009c */
struct {
u32 lsb; /* 0x0098 */
u32 msb; /* 0x009c */
};
} msi_watermark;
union {
u64 reg; /* 0x00a0..0x00a4 */
struct {
u32 lsb; /* 0x00a0 */
u32 msb; /* 0x00a4 */
};
} msi_abort;
u32 msi_msgdata; /* 0x00a8 */
u32 padding_2[21]; /* 0x00ac..0x00fc */
} __packed;
struct dw_hdma_v0_ch {
struct dw_hdma_v0_ch_regs wr; /* 0x0000 */
struct dw_hdma_v0_ch_regs rd; /* 0x0100 */
} __packed;
struct dw_hdma_v0_regs {
struct dw_hdma_v0_ch ch[HDMA_V0_MAX_NR_CH]; /* 0x0000..0x0fa8 */
} __packed;
struct dw_hdma_v0_lli {
u32 control;
u32 transfer_size;
union {
u64 reg;
struct {
u32 lsb;
u32 msb;
};
} sar;
union {
u64 reg;
struct {
u32 lsb;
u32 msb;
};
} dar;
} __packed;
struct dw_hdma_v0_llp {
u32 control;
u32 reserved;
union {
u64 reg;
struct {
u32 lsb;
u32 msb;
};
} llp;
} __packed;
#endif /* _DW_HDMA_V0_REGS_H */