loongson-se.h

 1/* SPDX-License-Identifier: GPL-2.0+ */
 2/* Copyright (C) 2025 Loongson Technology Corporation Limited */
 3
 4#ifndef __MFD_LOONGSON_SE_H__
 5#define __MFD_LOONGSON_SE_H__
 6
 7#define LOONGSON_ENGINE_CMD_TIMEOUT_US	10000
 8#define SE_SEND_CMD_REG			0x0
 9#define SE_SEND_CMD_REG_LEN		0x8
10/* Controller command ID */
11#define SE_CMD_START			0x0
12#define SE_CMD_SET_DMA			0x3
13#define SE_CMD_SET_ENGINE_CMDBUF	0x4
14
15#define SE_S2LINT_STAT			0x88
16#define SE_S2LINT_EN			0x8c
17#define SE_S2LINT_CL			0x94
18#define SE_L2SINT_STAT			0x98
19#define SE_L2SINT_SET			0xa0
20
21#define SE_INT_ALL			0xffffffff
22#define SE_INT_CONTROLLER		BIT(0)
23
24#define SE_ENGINE_MAX			16
25#define SE_ENGINE_RNG			1
26#define SE_CMD_RNG			0x100
27
28#define SE_ENGINE_TPM			5
29#define SE_CMD_TPM			0x500
30
31#define SE_ENGINE_CMD_SIZE		32
32
33struct loongson_se_engine {
34	struct loongson_se *se;
35	int id;
36
37	/* Command buffer */
38	void *command;
39	void *command_ret;
40
41	void *data_buffer;
42	uint buffer_size;
43	/* Data buffer offset to DMA base */
44	uint buffer_off;
45
46	struct completion completion;
47
48};
49
50struct loongson_se_engine *loongson_se_init_engine(struct device *dev, int id);
51int loongson_se_send_engine_cmd(struct loongson_se_engine *engine);
52
53#endif