xref: /openbmc/u-boot/drivers/net/fsl-mc/dpmac.c (revision ee943655)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Freescale Layerscape MC I/O wrapper
4  *
5  * Copyright 2015-2016 Freescale Semiconductor, Inc.
6  * Copyright 2017 NXP
7  * Author: Prabhakar Kushwaha <prabhakar@freescale.com>
8  */
9 
10 #include <fsl-mc/fsl_mc_sys.h>
11 #include <fsl-mc/fsl_mc_cmd.h>
12 #include <fsl-mc/fsl_dpmac.h>
13 
14 int dpmac_open(struct fsl_mc_io *mc_io,
15 	       uint32_t cmd_flags,
16 	       int dpmac_id,
17 	       uint16_t *token)
18 {
19 	struct mc_command cmd = { 0 };
20 	int err;
21 
22 	/* prepare command */
23 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_OPEN,
24 					  cmd_flags,
25 					  0);
26 	DPMAC_CMD_OPEN(cmd, dpmac_id);
27 
28 	/* send command to mc*/
29 	err = mc_send_command(mc_io, &cmd);
30 	if (err)
31 		return err;
32 
33 	/* retrieve response parameters */
34 	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
35 
36 	return err;
37 }
38 
39 int dpmac_close(struct fsl_mc_io *mc_io,
40 		uint32_t cmd_flags,
41 		uint16_t token)
42 {
43 	struct mc_command cmd = { 0 };
44 
45 	/* prepare command */
46 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CLOSE, cmd_flags,
47 					  token);
48 
49 	/* send command to mc*/
50 	return mc_send_command(mc_io, &cmd);
51 }
52 
53 int dpmac_create(struct fsl_mc_io *mc_io,
54 		 uint16_t dprc_token,
55 		 uint32_t cmd_flags,
56 		 const struct dpmac_cfg *cfg,
57 		 uint32_t *obj_id)
58 {
59 	struct mc_command cmd = { 0 };
60 	int err;
61 
62 	/* prepare command */
63 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CREATE,
64 					  cmd_flags,
65 					  dprc_token);
66 	DPMAC_CMD_CREATE(cmd, cfg);
67 
68 	/* send command to mc*/
69 	err = mc_send_command(mc_io, &cmd);
70 	if (err)
71 		return err;
72 
73 	/* retrieve response parameters */
74 	MC_CMD_READ_OBJ_ID(cmd, *obj_id);
75 
76 	return 0;
77 }
78 
79 int dpmac_destroy(struct fsl_mc_io *mc_io,
80 		  uint16_t dprc_token,
81 		  uint32_t cmd_flags,
82 		  uint32_t obj_id)
83 {
84 	struct mc_command cmd = { 0 };
85 
86 	/* prepare command */
87 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_DESTROY,
88 					  cmd_flags,
89 					  dprc_token);
90 
91 	/* set object id to destroy */
92 	CMD_DESTROY_SET_OBJ_ID_PARAM0(cmd, obj_id);
93 
94 	/* send command to mc*/
95 	return mc_send_command(mc_io, &cmd);
96 }
97 
98 int dpmac_get_attributes(struct fsl_mc_io *mc_io,
99 			 uint32_t cmd_flags,
100 			 uint16_t token,
101 			 struct dpmac_attr *attr)
102 {
103 	struct mc_command cmd = { 0 };
104 	int err;
105 
106 	/* prepare command */
107 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_ATTR,
108 					  cmd_flags,
109 					  token);
110 
111 	/* send command to mc*/
112 	err = mc_send_command(mc_io, &cmd);
113 	if (err)
114 		return err;
115 
116 	/* retrieve response parameters */
117 	DPMAC_RSP_GET_ATTRIBUTES(cmd, attr);
118 
119 	return 0;
120 }
121 
122 int dpmac_mdio_read(struct fsl_mc_io *mc_io,
123 		    uint32_t cmd_flags,
124 		    uint16_t token,
125 		    struct dpmac_mdio_cfg *cfg)
126 {
127 	struct mc_command cmd = { 0 };
128 	int err;
129 
130 	/* prepare command */
131 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_MDIO_READ,
132 					  cmd_flags,
133 					  token);
134 	DPMAC_CMD_MDIO_READ(cmd, cfg);
135 
136 	/* send command to mc*/
137 	err = mc_send_command(mc_io, &cmd);
138 	if (err)
139 		return err;
140 
141 	/* retrieve response parameters */
142 	DPMAC_RSP_MDIO_READ(cmd, cfg->data);
143 
144 	return 0;
145 }
146 
147 int dpmac_mdio_write(struct fsl_mc_io *mc_io,
148 		     uint32_t cmd_flags,
149 		     uint16_t token,
150 		     struct dpmac_mdio_cfg *cfg)
151 {
152 	struct mc_command cmd = { 0 };
153 
154 	/* prepare command */
155 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_MDIO_WRITE,
156 					  cmd_flags,
157 					  token);
158 	DPMAC_CMD_MDIO_WRITE(cmd, cfg);
159 
160 	/* send command to mc*/
161 	return mc_send_command(mc_io, &cmd);
162 }
163 
164 int dpmac_get_link_cfg(struct fsl_mc_io *mc_io,
165 		       uint32_t cmd_flags,
166 		       uint16_t token,
167 		       struct dpmac_link_cfg *cfg)
168 {
169 	struct mc_command cmd = { 0 };
170 	int err = 0;
171 
172 	/* prepare command */
173 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_LINK_CFG,
174 					  cmd_flags,
175 					  token);
176 
177 	/* send command to mc*/
178 	err = mc_send_command(mc_io, &cmd);
179 	if (err)
180 		return err;
181 
182 	DPMAC_RSP_GET_LINK_CFG(cmd, cfg);
183 
184 	return 0;
185 }
186 
187 int dpmac_set_link_state(struct fsl_mc_io *mc_io,
188 			 uint32_t cmd_flags,
189 			 uint16_t token,
190 			 struct dpmac_link_state *link_state)
191 {
192 	struct mc_command cmd = { 0 };
193 
194 	/* prepare command */
195 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_LINK_STATE,
196 					  cmd_flags,
197 					  token);
198 	DPMAC_CMD_SET_LINK_STATE(cmd, link_state);
199 
200 	/* send command to mc*/
201 	return mc_send_command(mc_io, &cmd);
202 }
203 
204 int dpmac_get_counter(struct fsl_mc_io *mc_io,
205 		      uint32_t cmd_flags,
206 		      uint16_t token,
207 		      enum dpmac_counter type,
208 		      uint64_t *counter)
209 {
210 	struct mc_command cmd = { 0 };
211 	int err = 0;
212 
213 	/* prepare command */
214 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_COUNTER,
215 					  cmd_flags,
216 					  token);
217 	DPMAC_CMD_GET_COUNTER(cmd, type);
218 
219 	/* send command to mc*/
220 	err = mc_send_command(mc_io, &cmd);
221 	if (err)
222 		return err;
223 
224 	DPMAC_RSP_GET_COUNTER(cmd, *counter);
225 
226 	return 0;
227 }
228 
229 int dpmac_get_api_version(struct fsl_mc_io *mc_io,
230 			 u32 cmd_flags,
231 			 u16 *major_ver,
232 			 u16 *minor_ver)
233 {
234 	struct mc_command cmd = { 0 };
235 	int err;
236 
237 	/* prepare command */
238 	cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_API_VERSION,
239 					  cmd_flags, 0);
240 
241 	/* send command to mc */
242 	err = mc_send_command(mc_io, &cmd);
243 	if (err)
244 		return err;
245 
246 	/* retrieve response parameters */
247 	mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
248 
249 	return 0;
250 }
251