cmd/broadcom/nitro_image_load.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2020 Broadcom
   4  */
   5
   6 #include <common.h>
   7 #include <command.h>
   8
   9 #define FW_IMAGE_SIG    0xff123456
  10 #define CFG_IMAGE_SIG   0xcf54321a
  11
  12 /*
  13  * structure for bin file
  14  *  signature: fw itb file
  15  *  size: fw itb file
  16  *  signature: NS3 config file
  17  *  size: NS3 config file
  18  *  Data: fw itb file
  19  *  ............................
  20  *  ............................
  21  *  Data: NS3 config file
  22  *  ............................
  23  *  ............................
  24  */
  25
  26 static struct img_header {
  27         u32 bin_sig;
  28         u32 bin_size;
  29         u32 cfg1_sig;
  30         u32 cfg1_size;
  31 } *img_header;
  32
  33 static int env_set_val(const char *varname, ulong val)
  34 {
  35         int ret;
  36
  37         ret = env_set_hex(varname, val);
  38         if (ret)
  39                 pr_err("Failed to %s env var\n", varname);
  40
  41         return ret;
  42 }
  43
  44 static int do_spi_images_addr(struct cmd_tbl *cmdtp, int flag, int argc,
  45                               char *const argv[])
  46 {
  47         uintptr_t images_load_addr;
  48         uintptr_t spi_load_addr;
  49         u32 len;
  50         u32 spi_data_offset = sizeof(struct img_header);
  51
  52         if (argc != 3)
  53                 return CMD_RET_USAGE;
  54
  55         /* convert command parameter to fastboot address (base 16), i.e. hex */
  56         images_load_addr = simple_strtoul(argv[1], NULL, 16);
  57         if (!images_load_addr) {
  58                 pr_err("Invalid load address\n");
  59                 return CMD_RET_USAGE;
  60         }
  61
  62         spi_load_addr = simple_strtoul(argv[2], NULL, 16);
  63         if (!spi_load_addr) {
  64                 pr_err("Invalid spi load address\n");
  65                 return CMD_RET_USAGE;
  66         }
  67
  68         img_header = (struct img_header *)images_load_addr;
  69
  70         if (img_header->bin_sig != FW_IMAGE_SIG) {
  71                 pr_err("Invalid Nitro bin file\n");
  72                 goto error;
  73         }
  74
  75         if (env_set_val("spi_nitro_fw_itb_start_addr", 0))
  76                 goto error;
  77
  78         if (env_set_val("spi_nitro_fw_itb_len", 0))
  79                 goto error;
  80
  81         if (env_set_val("spi_nitro_fw_ns3_cfg_start_addr", 0))
  82                 goto error;
  83
  84         if (env_set_val("spi_nitro_fw_ns3_cfg_len", 0))
  85                 goto error;
  86
  87         len = img_header->bin_size;
  88
  89         if (env_set_val("spi_nitro_fw_itb_start_addr",
  90                         (spi_load_addr + spi_data_offset)))
  91                 goto error;
  92
  93         if (env_set_val("spi_nitro_fw_itb_len", img_header->bin_size))
  94                 goto error;
  95
  96         spi_data_offset += len;
  97
  98         if (img_header->cfg1_sig == CFG_IMAGE_SIG) {
  99                 len = img_header->cfg1_size;
 100
 101                 if (env_set_val("spi_nitro_fw_ns3_cfg_start_addr",
 102                                 (spi_load_addr + spi_data_offset)))
 103                         goto error;
 104
 105                 if (env_set_val("spi_nitro_fw_ns3_cfg_len", len))
 106                         goto error;
 107
 108                 spi_data_offset += len;
 109         }
 110
 111         /* disable secure boot */
 112         if (env_set_val("nitro_fastboot_secure", 0))
 113                 goto error;
 114
 115         return CMD_RET_SUCCESS;
 116
 117 error:
 118         return CMD_RET_FAILURE;
 119 }
 120
 121 U_BOOT_CMD
 122         (spi_nitro_images_addr, 3, 1, do_spi_images_addr,
 123          "Load the bnxt bin header and sets envs ",
 124          "spi_nitro_images_addr <load_addr> <spi_base_addr>\n"
 125 );