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
54

source code of linux/include/linux/mfd/loongson-se.h