From: Igor Opaniuk igor.opaniuk@toradex.com
Add migration routine from PID8 pre-stored values on EEPROM (including sane value checks).
Signed-off-by: Igor Opaniuk igor.opaniuk@toradex.com ---
(no changes since v1)
board/toradex/common/tdx-cfg-block.c | 78 ++++++++++++++++++++++++++++ board/toradex/common/tdx-cfg-block.h | 2 + 2 files changed, 80 insertions(+)
diff --git a/board/toradex/common/tdx-cfg-block.c b/board/toradex/common/tdx-cfg-block.c index 5162ed48b8..bf27b2fa66 100644 --- a/board/toradex/common/tdx-cfg-block.c +++ b/board/toradex/common/tdx-cfg-block.c @@ -649,6 +649,84 @@ out: return ret; }
+int check_pid8_sanity(char *pid8) +{ + char s_carrierid_verdin_dev[5]; + char s_carrierid_dahlia[5]; + + sprintf(s_carrierid_verdin_dev, "0%d", VERDIN_DEVELOPMENT_BOARD); + sprintf(s_carrierid_dahlia, "0%d", DAHLIA); + + /* sane value check, first 4 chars which represent carrier id */ + if (!strncmp(pid8, s_carrierid_verdin_dev, 4)) + return 0; + + if (!strncmp(pid8, s_carrierid_dahlia, 4)) + return 0; + + return -EINVAL; +} + +int try_migrate_tdx_cfg_block_carrier(void) +{ + char pid8[8]; + int offset = 0; + int ret = CMD_RET_SUCCESS; + size_t size = TDX_CFG_BLOCK_EXTRA_MAX_SIZE; + u8 *config_block; + + memset(pid8, 0x0, 8); + ret = read_tdx_eeprom_data(TDX_EEPROM_ID_CARRIER, 0x0, (u8 *)pid8, 8); + if (ret) + return ret; + + if (check_pid8_sanity(pid8)) + return -EINVAL; + + /* Allocate RAM area for config block */ + config_block = memalign(ARCH_DMA_MINALIGN, size); + if (!config_block) { + printf("Not enough malloc space available!\n"); + return CMD_RET_FAILURE; + } + + memset(config_block, 0xff, size); + /* we try parse PID8 concatenating zeroed serial number */ + tdx_car_hw_tag.ver_major = pid8[4] - '0'; + tdx_car_hw_tag.ver_minor = pid8[5] - '0'; + tdx_car_hw_tag.ver_assembly = pid8[7] - '0'; + + pid8[4] = '\0'; + tdx_car_hw_tag.prodid = simple_strtoul(pid8, NULL, 10); + + /* Valid Tag */ + write_tag(config_block, &offset, TAG_VALID, NULL, 0); + + /* Product Tag */ + write_tag(config_block, &offset, TAG_HW, (u8 *)&tdx_car_hw_tag, + sizeof(tdx_car_hw_tag)); + + /* Serial Tag */ + write_tag(config_block, &offset, TAG_CAR_SERIAL, (u8 *)&tdx_car_serial, + sizeof(tdx_car_serial)); + + memset(config_block + offset, 0, 32 - offset); + ret = write_tdx_eeprom_data(TDX_EEPROM_ID_CARRIER, 0x0, config_block, + size); + if (ret) { + printf("Failed to write Toradex Extra config block: %d\n", + ret); + ret = CMD_RET_FAILURE; + goto out; + } + + printf("Successfully migrated to Toradex Config Block from PID8\n"); + +out: + free(config_block); + return ret; +} + static int get_cfgblock_carrier_interactive(void) { char message[CONFIG_SYS_CBSIZE]; diff --git a/board/toradex/common/tdx-cfg-block.h b/board/toradex/common/tdx-cfg-block.h index e18da3370e..8f91d9aec6 100644 --- a/board/toradex/common/tdx-cfg-block.h +++ b/board/toradex/common/tdx-cfg-block.h @@ -102,4 +102,6 @@ extern u32 tdx_car_serial; int read_tdx_cfg_block(void); int read_tdx_cfg_block_carrier(void);
+int try_migrate_tdx_cfg_block_carrier(void); + #endif /* _TDX_CFG_BLOCK_H */