1 /*
2 * Copyright (c) 2020 Texas Instruments Incorporated - https://www.ti.com
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * * Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * * Neither the name of Texas Instruments Incorporated nor the names of
16 * its contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 */
33 #include <errno.h>
34 #include <stdio.h>
35 #include <stdbool.h>
36 #include <sys/types.h>
37 #include <dirent.h>
38 #include <string.h>
39 #include <fcntl.h>
40 #include <unistd.h>
42 #include "rpmsg_char_internal.h"
44 /* Increment this whenever new SoC data is added */
45 #define NUM_SOC_FAMILY 4
47 struct soc_data {
48 const char *family_name;
49 const struct rproc_map *map;
50 int num_rprocs;
51 };
53 /* TI K3 AM65x SoCs */
54 const struct rproc_map am65x_map[] = {
55 { .id = R5F_MCU0_0, .rproc_name = "41000000.r5f", },
56 { .id = R5F_MCU0_1, .rproc_name = "41400000.r5f", },
57 };
59 /* TI K3 J721E SoCs */
60 const struct rproc_map j721e_map[] = {
61 { .id = R5F_MCU0_0, .rproc_name = "41000000.r5f", },
62 { .id = R5F_MCU0_1, .rproc_name = "41400000.r5f", },
63 { .id = R5F_MAIN0_0, .rproc_name = "5c00000.r5f", },
64 { .id = R5F_MAIN0_1, .rproc_name = "5d00000.r5f", },
65 { .id = R5F_MAIN1_0, .rproc_name = "5e00000.r5f", },
66 { .id = R5F_MAIN1_1, .rproc_name = "5f00000.r5f", },
67 { .id = DSP_C66_0, .rproc_name = "4d80800000.dsp", },
68 { .id = DSP_C66_1, .rproc_name = "4d81800000.dsp", },
69 { .id = DSP_C71_0, .rproc_name = "64800000.dsp", },
70 };
72 /* TI K3 J7200 SoCs */
73 const struct rproc_map j7200_map[] = {
74 { .id = R5F_MCU0_0, .rproc_name = "41000000.r5f", },
75 { .id = R5F_MCU0_1, .rproc_name = "41400000.r5f", },
76 { .id = R5F_MAIN0_0, .rproc_name = "5c00000.r5f", },
77 { .id = R5F_MAIN0_1, .rproc_name = "5d00000.r5f", },
78 };
80 /* TI K3 AM64x SoCs */
81 const struct rproc_map am64x_map[] = {
82 { .id = R5F_MAIN0_0, .rproc_name = "78000000.r5f", },
83 { .id = R5F_MAIN0_1, .rproc_name = "78200000.r5f", },
84 { .id = R5F_MAIN1_0, .rproc_name = "78400000.r5f", },
85 { .id = R5F_MAIN1_1, .rproc_name = "78600000.r5f", },
86 };
88 const struct soc_data socs[NUM_SOC_FAMILY] = {
89 {
90 .family_name = "AM65X",
91 .map = am65x_map,
92 .num_rprocs = (sizeof(am65x_map) / sizeof(struct rproc_map)),
93 },
94 {
95 .family_name = "J721E",
96 .map = j721e_map,
97 .num_rprocs = (sizeof(j721e_map) / sizeof(struct rproc_map)),
98 },
99 {
100 .family_name = "J7200",
101 .map = j7200_map,
102 .num_rprocs = (sizeof(j7200_map) / sizeof(struct rproc_map)),
103 },
104 {
105 .family_name = "AM64X",
106 .map = am64x_map,
107 .num_rprocs = (sizeof(am64x_map) / sizeof(struct rproc_map)),
108 },
109 };
111 int _rpmsg_char_find_soc_family(const char *name, struct soc_rprocs *soc)
112 {
113 int ret, i;
114 char family_name[32];
115 bool found = false;
117 if (check_dir("/sys/devices/soc0")) {
118 fprintf(stderr, "Kernel doesn't have a soc device, use fallback detection..\n");
119 goto fallback;
120 }
122 ret = file_read_string("/sys/devices/soc0/family", family_name,
123 sizeof(family_name));
124 if (ret < 0)
125 return -ENOENT;
127 for (i = 0; i < NUM_SOC_FAMILY; i++) {
128 if (!strcmp(family_name, socs[i].family_name)) {
129 found = true;
130 break;
131 }
132 }
134 fallback:
135 /* fall back to using passed in SoC family name */
136 if (!found && name) {
137 for (i = 0; i < NUM_SOC_FAMILY; i++) {
138 if (!strcmp(name, socs[i].family_name)) {
139 found = true;
140 break;
141 }
142 }
143 }
145 if (!found) {
146 fprintf(stderr, "%s: SoC device family match failed\n", __func__);
147 return -ENOENT;
148 }
150 soc->num_rprocs = socs[i].num_rprocs;
151 soc->map = socs[i].map;
153 return 0;
154 }