xref: /openbmc/u-boot/drivers/net/fsl-mc/dpio/dpio.c (revision 20b9f2ea)
1 /*
2  * Copyright (C) 2013-2016 Freescale Semiconductor
3  * Copyright 2017 NXP
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <fsl-mc/fsl_mc_sys.h>
9 #include <fsl-mc/fsl_mc_cmd.h>
10 #include <fsl-mc/fsl_dpio.h>
11 
12 int dpio_open(struct fsl_mc_io *mc_io,
13 	      uint32_t cmd_flags,
14 	      uint32_t dpio_id,
15 	      uint16_t *token)
16 {
17 	struct mc_command cmd = { 0 };
18 	int err;
19 
20 	/* prepare command */
21 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN,
22 					  cmd_flags,
23 					  0);
24 	DPIO_CMD_OPEN(cmd, dpio_id);
25 
26 	/* send command to mc*/
27 	err = mc_send_command(mc_io, &cmd);
28 	if (err)
29 		return err;
30 
31 	/* retrieve response parameters */
32 	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
33 
34 	return 0;
35 }
36 
37 int dpio_close(struct fsl_mc_io *mc_io,
38 	       uint32_t cmd_flags,
39 	       uint16_t token)
40 {
41 	struct mc_command cmd = { 0 };
42 
43 	/* prepare command */
44 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_CLOSE,
45 					  cmd_flags,
46 					  token);
47 
48 	/* send command to mc*/
49 	return mc_send_command(mc_io, &cmd);
50 }
51 
52 int dpio_create(struct fsl_mc_io *mc_io,
53 		uint16_t dprc_token,
54 		uint32_t cmd_flags,
55 		const struct dpio_cfg *cfg,
56 		uint32_t *obj_id)
57 {
58 	struct mc_command cmd = { 0 };
59 	int err;
60 
61 	/* prepare command */
62 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_CREATE,
63 					  cmd_flags,
64 					  dprc_token);
65 	DPIO_CMD_CREATE(cmd, cfg);
66 
67 	/* send command to mc*/
68 	err = mc_send_command(mc_io, &cmd);
69 	if (err)
70 		return err;
71 
72 	/* retrieve response parameters */
73 	MC_CMD_READ_OBJ_ID(cmd, *obj_id);
74 
75 	return 0;
76 }
77 
78 int dpio_destroy(struct fsl_mc_io *mc_io,
79 		 uint16_t dprc_token,
80 		 uint32_t cmd_flags,
81 		 uint32_t obj_id)
82 {
83 	struct mc_command cmd = { 0 };
84 
85 	/* prepare command */
86 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_DESTROY,
87 					  cmd_flags,
88 					  dprc_token);
89 
90 	/* set object id to destroy */
91 	CMD_DESTROY_SET_OBJ_ID_PARAM0(cmd, obj_id);
92 
93 	/* send command to mc*/
94 	return mc_send_command(mc_io, &cmd);
95 }
96 
97 int dpio_enable(struct fsl_mc_io *mc_io,
98 		uint32_t cmd_flags,
99 		uint16_t token)
100 {
101 	struct mc_command cmd = { 0 };
102 
103 	/* prepare command */
104 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_ENABLE,
105 					  cmd_flags,
106 					  token);
107 
108 	/* send command to mc*/
109 	return mc_send_command(mc_io, &cmd);
110 }
111 
112 int dpio_disable(struct fsl_mc_io *mc_io,
113 		 uint32_t cmd_flags,
114 		 uint16_t token)
115 {
116 	struct mc_command cmd = { 0 };
117 
118 	/* prepare command */
119 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_DISABLE,
120 					  cmd_flags,
121 					  token);
122 
123 	/* send command to mc*/
124 	return mc_send_command(mc_io, &cmd);
125 }
126 
127 int dpio_reset(struct fsl_mc_io *mc_io,
128 	       uint32_t cmd_flags,
129 	       uint16_t token)
130 {
131 	struct mc_command cmd = { 0 };
132 
133 	/* prepare command */
134 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_RESET,
135 					  cmd_flags,
136 					  token);
137 
138 	/* send command to mc*/
139 	return mc_send_command(mc_io, &cmd);
140 }
141 
142 int dpio_get_attributes(struct fsl_mc_io *mc_io,
143 			uint32_t cmd_flags,
144 			uint16_t token,
145 			struct dpio_attr *attr)
146 {
147 	struct mc_command cmd = { 0 };
148 	int err;
149 
150 	/* prepare command */
151 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_ATTR,
152 					  cmd_flags,
153 					  token);
154 
155 	/* send command to mc*/
156 	err = mc_send_command(mc_io, &cmd);
157 	if (err)
158 		return err;
159 
160 	/* retrieve response parameters */
161 	DPIO_RSP_GET_ATTR(cmd, attr);
162 
163 	return 0;
164 }
165 
166 int dpio_get_api_version(struct fsl_mc_io *mc_io,
167 			 u32 cmd_flags,
168 			 u16 *major_ver,
169 			 u16 *minor_ver)
170 {
171 	struct mc_command cmd = { 0 };
172 	int err;
173 
174 	/* prepare command */
175 	cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION,
176 					  cmd_flags, 0);
177 
178 	/* send command to mc */
179 	err = mc_send_command(mc_io, &cmd);
180 	if (err)
181 		return err;
182 
183 	/* retrieve response parameters */
184 	mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
185 
186 	return 0;
187 }
188