common/socinfo.c

   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  */
  35
  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/am65x/am65x_sec_proxy_info.h>
  42 #include <soc/j721e/j721e_host_info.h>
  43
  44 /* Assuming these addresses and definitions stay common across K3 devices */
  45 #define CTRLMMR_WKUP_JTAG_DEVICE_ID     0x43000018
  46 #define DEVICE_ID_FAMILY_SHIFT  26
  47 #define DEVICE_ID_FAMILY_MASK   (0x3f << 26)
  48 #define DEVICE_ID_BASE_SHIFT    11
  49 #define DEVICE_ID_BASE_MASK     (0x1fff << 11)
  50 #define DEVICE_ID_SPEED_SHIFT   6
  51 #define DEVICE_ID_SPEED_MASK    (0x1f << 6)
  52 #define DEVICE_ID_TEMP_SHIFT    3
  53 #define DEVICE_ID_TEMP_MASK     (0x7 << 3)
  54
  55 #define CTRLMMR_WKUP_JTAG_ID            0x43000014
  56 #define JTAG_ID_VARIANT_SHIFT   28
  57 #define JTAG_ID_VARIANT_MASK    (0xf << 28)
  58 #define JTAG_ID_PARTNO_SHIFT    12
  59 #define JTAG_ID_PARTNO_MASK     (0x7ff << 1)
  60
  61 #define CTRLMMR_WKUP_DIE_ID0    0x43000020
  62 #define CTRLMMR_WKUP_DIE_ID1    0x43000024
  63 #define CTRLMMR_WKUP_DIE_ID2    0x43000028
  64 #define CTRLMMR_WKUP_DIE_ID3    0x4300002c
  65 #define CTRLMMR_WKUP_DEVSTAT    0x43000030
  66 #define CTRLMMR_WKUP_BOOTCFG    0x43000034
  67
  68 struct k3conf_soc_info soc_info;
  69
  70 static const char soc_name[K3_MAX + 1][SOC_NAME_MAX_LENGTH] = {
  71         [AM654] = "AM654",
  72         [J721E] = "J721E",
  73         [K3_MAX] = "UNKNOWN"
  74 };
  75
  76 static const char soc_revision[REV_PG_MAX + 1][SOC_REVISION_MAX_LENGTH] = {
  77         [REV_PG1_0] = "1.0",
  78         [REV_PG2_0] = "2.0",
  79         [REV_PG_MAX] = "NULL"
  80 };
  81
  82 static void am654_init(void)
  83 {
  84         struct ti_sci_info *sci_info = &soc_info.sci_info;
  85
  86         sci_info->host_info = am65x_host_info;
  87         sci_info->num_hosts = AM65X_MAX_HOST_IDS;
  88         sci_info->sp_info[MAIN_SEC_PROXY] = am65x_main_sp_info;
  89         sci_info->num_sp_threads[MAIN_SEC_PROXY] = AM65X_MAIN_SEC_PROXY_THREADS;
  90         sci_info->sp_info[MCU_SEC_PROXY] = am65x_mcu_sp_info;
  91         sci_info->num_sp_threads[MCU_SEC_PROXY] = AM65X_MCU_SEC_PROXY_THREADS;
  92 }
  93
  94 static void j721e_init(void)
  95 {
  96         struct ti_sci_info *sci_info = &soc_info.sci_info;
  97
  98         sci_info->host_info = j721e_host_info;
  99         sci_info->num_hosts = J721E_MAX_HOST_IDS;
 100 }
 101
 102 int soc_init(void)
 103 {
 104         memset(&soc_info, 0, sizeof(soc_info));
 105
 106         soc_info.soc = (mmio_read_32(CTRLMMR_WKUP_JTAG_DEVICE_ID) &
 107                         DEVICE_ID_FAMILY_MASK) >> DEVICE_ID_FAMILY_SHIFT;
 108         soc_info.rev = (mmio_read_32(CTRLMMR_WKUP_JTAG_ID) &
 109                         JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT;
 110
 111         if (soc_info.soc > K3_MAX || !soc_name[soc_info.soc]) {
 112                 fprintf(stderr, "Unknown Silicon %d\n", soc_info.soc);
 113                 return -1;
 114         }
 115         if (soc_info.rev > REV_PG_MAX) {
 116                 fprintf(stderr, "Unknown Silicon revision %d for SoC %s\n",
 117                         soc_info.rev, soc_name[soc_info.soc]);
 118                 return -1;
 119         }
 120
 121         strncpy(soc_info.soc_full_name, "", sizeof(soc_info.soc_full_name));
 122         strcat(soc_info.soc_full_name, soc_name[soc_info.soc]);
 123         strcat(soc_info.soc_full_name, " PG");
 124         strcat(soc_info.soc_full_name, soc_revision[soc_info.rev]);
 125
 126         soc_info.host_id = DEFAULT_HOST_ID;
 127
 128         if (soc_info.soc == AM654)
 129                 am654_init();
 130         else if (soc_info.soc == J721E)
 131                 j721e_init();
 132
 133         /* ToDo: Add error if sec_proxy_init/sci_init is failed */
 134         if(!k3_sec_proxy_init())
 135                 if (!ti_sci_init())
 136                         soc_info.ti_sci_enabled = 1;
 137
 138         return 0;
 139 }
 140
 141 int soc_is_j721e(void)
 142 {
 143         return soc_info.soc == J721E;
 144 }
 145
 146 int soc_is_am654(void)
 147 {
 148         return soc_info.soc == AM654;
 149 }