94b2610947116eb6ade7b32e5241b81d62c009a9
1 /*
2 * K3 SoC detection and helper apis
3 *
4 * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
5 * Lokesh Vutla <lokeshvutla@ti.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the
17 * distribution.
18 *
19 * Neither the name of Texas Instruments Incorporated nor the names of
20 * its contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
36 #include <socinfo.h>
37 #include <mmio.h>
38 #include <string.h>
39 #include <sec_proxy.h>
40 #include <soc/am65x/am65x_host_info.h>
41 #include <soc/j721e/j721e_host_info.h>
43 /* Assuming these addresses and definitions stay common across K3 devices */
44 #define CTRLMMR_WKUP_JTAG_DEVICE_ID 0x43000018
45 #define DEVICE_ID_FAMILY_SHIFT 26
46 #define DEVICE_ID_FAMILY_MASK (0x3f << 26)
47 #define DEVICE_ID_BASE_SHIFT 11
48 #define DEVICE_ID_BASE_MASK (0x1fff << 11)
49 #define DEVICE_ID_SPEED_SHIFT 6
50 #define DEVICE_ID_SPEED_MASK (0x1f << 6)
51 #define DEVICE_ID_TEMP_SHIFT 3
52 #define DEVICE_ID_TEMP_MASK (0x7 << 3)
54 #define CTRLMMR_WKUP_JTAG_ID 0x43000014
55 #define JTAG_ID_VARIANT_SHIFT 28
56 #define JTAG_ID_VARIANT_MASK (0xf << 28)
57 #define JTAG_ID_PARTNO_SHIFT 12
58 #define JTAG_ID_PARTNO_MASK (0x7ff << 1)
60 #define CTRLMMR_WKUP_DIE_ID0 0x43000020
61 #define CTRLMMR_WKUP_DIE_ID1 0x43000024
62 #define CTRLMMR_WKUP_DIE_ID2 0x43000028
63 #define CTRLMMR_WKUP_DIE_ID3 0x4300002c
64 #define CTRLMMR_WKUP_DEVSTAT 0x43000030
65 #define CTRLMMR_WKUP_BOOTCFG 0x43000034
67 struct k3conf_soc_info soc_info;
69 static const char soc_name[K3_MAX + 1][SOC_NAME_MAX_LENGTH] = {
70 [AM654] = "AM654",
71 [J721E] = "J721E",
72 [K3_MAX] = "UNKNOWN"
73 };
75 static const char soc_revision[REV_PG_MAX + 1][SOC_REVISION_MAX_LENGTH] = {
76 [REV_PG1_0] = "1.0",
77 [REV_PG2_0] = "2.0",
78 [REV_PG_MAX] = "NULL"
79 };
81 static void am654_init(void)
82 {
83 struct ti_sci_info *sci_info = &soc_info.sci_info;
85 sci_info->host_info = am65x_host_info;
86 sci_info->num_hosts = AM65X_MAX_HOST_IDS;
87 }
89 static void j721e_init(void)
90 {
91 struct ti_sci_info *sci_info = &soc_info.sci_info;
93 sci_info->host_info = j721e_host_info;
94 sci_info->num_hosts = J721E_MAX_HOST_IDS;
95 }
97 int soc_init(void)
98 {
99 memset(&soc_info, 0, sizeof(soc_info));
101 soc_info.soc = (mmio_read_32(CTRLMMR_WKUP_JTAG_DEVICE_ID) &
102 DEVICE_ID_FAMILY_MASK) >> DEVICE_ID_FAMILY_SHIFT;
103 soc_info.rev = (mmio_read_32(CTRLMMR_WKUP_JTAG_ID) &
104 JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT;
106 if (soc_info.soc > K3_MAX || !soc_name[soc_info.soc]) {
107 fprintf(stderr, "Unknown Silicon %d\n", soc_info.soc);
108 return -1;
109 }
110 if (soc_info.rev > REV_PG_MAX) {
111 fprintf(stderr, "Unknown Silicon revision %d for SoC %s\n",
112 soc_info.rev, soc_name[soc_info.soc]);
113 return -1;
114 }
116 strncpy(soc_info.soc_full_name, "", sizeof(soc_info.soc_full_name));
117 strcat(soc_info.soc_full_name, soc_name[soc_info.soc]);
118 strcat(soc_info.soc_full_name, " PG");
119 strcat(soc_info.soc_full_name, soc_revision[soc_info.rev]);
121 soc_info.host_id = DEFAULT_HOST_ID;
123 if (soc_info.soc == AM654)
124 am654_init();
125 else if (soc_info.soc == J721E)
126 j721e_init();
128 /* ToDo: Add error if sec_proxy_init/sci_init is failed */
129 if(!k3_sec_proxy_init())
130 if (!ti_sci_init())
131 soc_info.ti_sci_enabled = 1;
133 return 0;
134 }
136 int soc_is_j721e(void)
137 {
138 return soc_info.soc == J721E;
139 }
141 int soc_is_am654(void)
142 {
143 return soc_info.soc == AM654;
144 }