// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2016-2019 Toradex, Inc. */ #include #include "tdx-cfg-block.h" #if defined(CONFIG_TARGET_APALIS_IMX6) || \ defined(CONFIG_TARGET_APALIS_IMX8) || \ defined(CONFIG_TARGET_COLIBRI_IMX6) || \ defined(CONFIG_TARGET_COLIBRI_IMX8X) #include #else #define is_cpu_type(cpu) (0) #endif #if defined(CONFIG_CPU_PXA27X) #include #else #define cpu_is_pxa27x(cpu) (0) #endif #include #include #include #include #include #include #include DECLARE_GLOBAL_DATA_PTR; #define TAG_VALID 0xcf01 #define TAG_MAC 0x0000 #define TAG_HW 0x0008 #define TAG_INVALID 0xffff #define TAG_FLAG_VALID 0x1 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC) #define TDX_CFG_BLOCK_MAX_SIZE 512 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) #define TDX_CFG_BLOCK_MAX_SIZE 64 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) #define TDX_CFG_BLOCK_MAX_SIZE 64 #else #error Toradex config block location not set #endif struct toradex_tag { u32 len:14; u32 flags:2; u32 id:16; }; bool valid_cfgblock; struct toradex_hw tdx_hw_tag; struct toradex_eth_addr tdx_eth_addr; u32 tdx_serial; const char * const toradex_modules[] = { [0] = "UNKNOWN MODULE", [1] = "Colibri PXA270 312MHz", [2] = "Colibri PXA270 520MHz", [3] = "Colibri PXA320 806MHz", [4] = "Colibri PXA300 208MHz", [5] = "Colibri PXA310 624MHz", [6] = "Colibri PXA320 806MHz IT", [7] = "Colibri PXA300 208MHz XT", [8] = "Colibri PXA270 312MHz", [9] = "Colibri PXA270 520MHz", [10] = "Colibri VF50 128MB", /* not currently on sale */ [11] = "Colibri VF61 256MB", [12] = "Colibri VF61 256MB IT", [13] = "Colibri VF50 128MB IT", [14] = "Colibri iMX6 Solo 256MB", [15] = "Colibri iMX6 DualLite 512MB", [16] = "Colibri iMX6 Solo 256MB IT", [17] = "Colibri iMX6 DualLite 512MB IT", [18] = "UNKNOWN MODULE", [19] = "UNKNOWN MODULE", [20] = "Colibri T20 256MB", [21] = "Colibri T20 512MB", [22] = "Colibri T20 512MB IT", [23] = "Colibri T30 1GB", [24] = "Colibri T20 256MB IT", [25] = "Apalis T30 2GB", [26] = "Apalis T30 1GB", [27] = "Apalis iMX6 Quad 1GB", [28] = "Apalis iMX6 Quad 2GB IT", [29] = "Apalis iMX6 Dual 512MB", [30] = "Colibri T30 1GB IT", [31] = "Apalis T30 1GB IT", [32] = "Colibri iMX7 Solo 256MB", [33] = "Colibri iMX7 Dual 512MB", [34] = "Apalis TK1 2GB", [35] = "Apalis iMX6 Dual 1GB IT", [36] = "Colibri iMX6ULL 256MB", [37] = "Apalis iMX8 QuadMax 4GB Wi-Fi / BT IT", [38] = "Colibri iMX8 QuadXPlus 2GB Wi-Fi / BT IT", [39] = "Colibri iMX7 Dual 1GB (eMMC)", [40] = "Colibri iMX6ULL 512MB Wi-Fi / BT IT", [41] = "Colibri iMX7 Dual 512MB EPDC", [42] = "Apalis TK1 4GB", [43] = "Colibri T20 512MB IT SETEK", [44] = "Colibri iMX6ULL 512MB IT", [45] = "Colibri iMX6ULL 512MB Wi-Fi / Bluetooth", [46] = "Apalis iMX8 QuadXPlus 2GB Wi-Fi / BT IT", [47] = "Apalis iMX8 QuadMax 4GB IT", [48] = "Apalis iMX8 QuadPlus 2GB Wi-Fi / BT", [49] = "Apalis iMX8 QuadPlus 2GB", [50] = "Colibri iMX8 QuadXPlus 2GB IT", [51] = "Colibri iMX8 DualX 1GB Wi-Fi / Bluetooth", [52] = "Colibri iMX8 DualX 1GB", }; #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC static int tdx_cfg_block_mmc_storage(u8 *config_block, int write) { struct mmc *mmc; int dev = CONFIG_TDX_CFG_BLOCK_DEV; int offset = CONFIG_TDX_CFG_BLOCK_OFFSET; uint part = CONFIG_TDX_CFG_BLOCK_PART; uint blk_start; int ret = 0; /* Read production parameter config block from eMMC */ mmc = find_mmc_device(dev); if (!mmc) { puts("No MMC card found\n"); ret = -ENODEV; goto out; } if (mmc_init(mmc)) { puts("MMC init failed\n"); return -EINVAL; } if (part != mmc_get_blk_desc(mmc)->hwpart) { if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) { puts("MMC partition switch failed\n"); ret = -ENODEV; goto out; } } if (offset < 0) offset += mmc->capacity; blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len; if (!write) { /* Careful reads a whole block of 512 bytes into config_block */ if (blk_dread(mmc_get_blk_desc(mmc), blk_start, 1, (unsigned char *)config_block) != 1) { ret = -EIO; goto out; } } else { /* Just writing one 512 byte block */ if (blk_dwrite(mmc_get_blk_desc(mmc), blk_start, 1, (unsigned char *)config_block) != 1) { ret = -EIO; goto out; } } out: /* Switch back to regular eMMC user partition */ blk_select_hwpart_devnum(IF_TYPE_MMC, 0, 0); return ret; } #endif #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NAND static int read_tdx_cfg_block_from_nand(unsigned char *config_block) { size_t size = TDX_CFG_BLOCK_MAX_SIZE; struct mtd_info *mtd = get_nand_dev_by_index(0); if (!mtd) return -ENODEV; /* Read production parameter config block from NAND page */ return nand_read_skip_bad(mtd, CONFIG_TDX_CFG_BLOCK_OFFSET, &size, NULL, TDX_CFG_BLOCK_MAX_SIZE, config_block); } static int write_tdx_cfg_block_to_nand(unsigned char *config_block) { size_t size = TDX_CFG_BLOCK_MAX_SIZE; /* Write production parameter config block to NAND page */ return nand_write_skip_bad(get_nand_dev_by_index(0), CONFIG_TDX_CFG_BLOCK_OFFSET, &size, NULL, TDX_CFG_BLOCK_MAX_SIZE, config_block, WITH_WR_VERIFY); } #endif #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NOR static int read_tdx_cfg_block_from_nor(unsigned char *config_block) { /* Read production parameter config block from NOR flash */ memcpy(config_block, (void *)CONFIG_TDX_CFG_BLOCK_OFFSET, TDX_CFG_BLOCK_MAX_SIZE); return 0; } static int write_tdx_cfg_block_to_nor(unsigned char *config_block) { /* Write production parameter config block to NOR flash */ return flash_write((void *)config_block, CONFIG_TDX_CFG_BLOCK_OFFSET, TDX_CFG_BLOCK_MAX_SIZE); } #endif int read_tdx_cfg_block(void) { int ret = 0; u8 *config_block = NULL; struct toradex_tag *tag; size_t size = TDX_CFG_BLOCK_MAX_SIZE; int offset; /* Allocate RAM area for config block */ config_block = memalign(ARCH_DMA_MINALIGN, size); if (!config_block) { printf("Not enough malloc space available!\n"); return -ENOMEM; } memset(config_block, 0, size); #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC) ret = tdx_cfg_block_mmc_storage(config_block, 0); #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) ret = read_tdx_cfg_block_from_nand(config_block); #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) ret = read_tdx_cfg_block_from_nor(config_block); #else ret = -EINVAL; #endif if (ret) goto out; /* Expect a valid tag first */ tag = (struct toradex_tag *)config_block; if (tag->flags != TAG_FLAG_VALID || tag->id != TAG_VALID) { valid_cfgblock = false; ret = -EINVAL; goto out; } valid_cfgblock = true; offset = 4; while (offset < TDX_CFG_BLOCK_MAX_SIZE) { tag = (struct toradex_tag *)(config_block + offset); offset += 4; if (tag->id == TAG_INVALID) break; if (tag->flags == TAG_FLAG_VALID) { switch (tag->id) { case TAG_MAC: memcpy(&tdx_eth_addr, config_block + offset, 6); /* NIC part of MAC address is serial number */ tdx_serial = ntohl(tdx_eth_addr.nic) >> 8; break; case TAG_HW: memcpy(&tdx_hw_tag, config_block + offset, 8); break; } } /* Get to next tag according to current tags length */ offset += tag->len * 4; } /* Cap product id to avoid issues with a yet unknown one */ if (tdx_hw_tag.prodid >= (sizeof(toradex_modules) / sizeof(toradex_modules[0]))) tdx_hw_tag.prodid = 0; out: free(config_block); return ret; } static int get_cfgblock_interactive(void) { char message[CONFIG_SYS_CBSIZE]; char *soc; char it = 'n'; char wb = 'n'; int len; /* Unknown module by default */ tdx_hw_tag.prodid = 0; if (cpu_is_pxa27x()) sprintf(message, "Is the module the 312 MHz version? [y/N] "); else sprintf(message, "Is the module an IT version? [y/N] "); len = cli_readline(message); it = console_buffer[0]; #if defined(CONFIG_TARGET_APALIS_IMX8) || \ defined(CONFIG_TARGET_COLIBRI_IMX6ULL) || \ defined(CONFIG_TARGET_COLIBRI_IMX8X) sprintf(message, "Does the module have Wi-Fi / Bluetooth? [y/N] "); len = cli_readline(message); wb = console_buffer[0]; #endif soc = env_get("soc"); if (!strcmp("mx6", soc)) { #ifdef CONFIG_TARGET_APALIS_IMX6 if (it == 'y' || it == 'Y') { if (is_cpu_type(MXC_CPU_MX6Q)) tdx_hw_tag.prodid = APALIS_IMX6Q_IT; else tdx_hw_tag.prodid = APALIS_IMX6D_IT; } else { if (is_cpu_type(MXC_CPU_MX6Q)) tdx_hw_tag.prodid = APALIS_IMX6Q; else tdx_hw_tag.prodid = APALIS_IMX6D; } #elif CONFIG_TARGET_COLIBRI_IMX6 if (it == 'y' || it == 'Y') { if (is_cpu_type(MXC_CPU_MX6DL)) tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT; else if (is_cpu_type(MXC_CPU_MX6SOLO)) tdx_hw_tag.prodid = COLIBRI_IMX6S_IT; } else { if (is_cpu_type(MXC_CPU_MX6DL)) tdx_hw_tag.prodid = COLIBRI_IMX6DL; else if (is_cpu_type(MXC_CPU_MX6SOLO)) tdx_hw_tag.prodid = COLIBRI_IMX6S; } #elif CONFIG_TARGET_COLIBRI_IMX6ULL if (it == 'y' || it == 'Y') { if (wb == 'y' || wb == 'Y') tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT_IT; else tdx_hw_tag.prodid = COLIBRI_IMX6ULL_IT; } else { if (wb == 'y' || wb == 'Y') tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT; else tdx_hw_tag.prodid = COLIBRI_IMX6ULL; } #endif } else if (!strcmp("imx7d", soc)) tdx_hw_tag.prodid = COLIBRI_IMX7D; else if (!strcmp("imx7s", soc)) tdx_hw_tag.prodid = COLIBRI_IMX7S; else if (is_cpu_type(MXC_CPU_IMX8QM)) { if (it == 'y' || it == 'Y') { if (wb == 'y' || wb == 'Y') tdx_hw_tag.prodid = APALIS_IMX8QM_WIFI_BT_IT; else tdx_hw_tag.prodid = APALIS_IMX8QM_IT; } else { if (wb == 'y' || wb == 'Y') tdx_hw_tag.prodid = APALIS_IMX8QP_WIFI_BT; else tdx_hw_tag.prodid = APALIS_IMX8QP; } } else if (is_cpu_type(MXC_CPU_IMX8QXP)) { if (it == 'y' || it == 'Y') { if (wb == 'y' || wb == 'Y') tdx_hw_tag.prodid = COLIBRI_IMX8QXP_WIFI_BT_IT; else tdx_hw_tag.prodid = COLIBRI_IMX8QXP_IT; } else { if (wb == 'y' || wb == 'Y') tdx_hw_tag.prodid = COLIBRI_IMX8DX_WIFI_BT; else tdx_hw_tag.prodid = COLIBRI_IMX8DX; } } else if (!strcmp("tegra20", soc)) { if (it == 'y' || it == 'Y') if (gd->ram_size == 0x10000000) tdx_hw_tag.prodid = COLIBRI_T20_256MB_IT; else tdx_hw_tag.prodid = COLIBRI_T20_512MB_IT; else if (gd->ram_size == 0x10000000) tdx_hw_tag.prodid = COLIBRI_T20_256MB; else tdx_hw_tag.prodid = COLIBRI_T20_512MB; } else if (cpu_is_pxa27x()) { if (it == 'y' || it == 'Y') tdx_hw_tag.prodid = COLIBRI_PXA270_312MHZ; else tdx_hw_tag.prodid = COLIBRI_PXA270_520MHZ; } #ifdef CONFIG_MACH_TYPE else if (!strcmp("tegra30", soc)) { if (CONFIG_MACH_TYPE == MACH_TYPE_APALIS_T30) { if (it == 'y' || it == 'Y') tdx_hw_tag.prodid = APALIS_T30_IT; else if (gd->ram_size == 0x40000000) tdx_hw_tag.prodid = APALIS_T30_1GB; else tdx_hw_tag.prodid = APALIS_T30_2GB; } else { if (it == 'y' || it == 'Y') tdx_hw_tag.prodid = COLIBRI_T30_IT; else tdx_hw_tag.prodid = COLIBRI_T30; } } #endif /* CONFIG_MACH_TYPE */ else if (!strcmp("tegra124", soc)) { tdx_hw_tag.prodid = APALIS_TK1_2GB; } else if (!strcmp("vf500", soc)) { if (it == 'y' || it == 'Y') tdx_hw_tag.prodid = COLIBRI_VF50_IT; else tdx_hw_tag.prodid = COLIBRI_VF50; } else if (!strcmp("vf610", soc)) { if (it == 'y' || it == 'Y') tdx_hw_tag.prodid = COLIBRI_VF61_IT; else tdx_hw_tag.prodid = COLIBRI_VF61; } if (!tdx_hw_tag.prodid) { printf("Module type not detectable due to unknown SoC\n"); return -1; } while (len < 4) { sprintf(message, "Enter the module version (e.g. V1.1B): V"); len = cli_readline(message); } tdx_hw_tag.ver_major = console_buffer[0] - '0'; tdx_hw_tag.ver_minor = console_buffer[2] - '0'; tdx_hw_tag.ver_assembly = console_buffer[3] - 'A'; if (cpu_is_pxa27x() && tdx_hw_tag.ver_major == 1) tdx_hw_tag.prodid -= (COLIBRI_PXA270_312MHZ - COLIBRI_PXA270_V1_312MHZ); while (len < 8) { sprintf(message, "Enter module serial number: "); len = cli_readline(message); } tdx_serial = simple_strtoul(console_buffer, NULL, 10); return 0; } static int get_cfgblock_barcode(char *barcode) { if (strlen(barcode) < 16) { printf("Argument too short, barcode is 16 chars long\n"); return -1; } /* Get hardware information from the first 8 digits */ tdx_hw_tag.ver_major = barcode[4] - '0'; tdx_hw_tag.ver_minor = barcode[5] - '0'; tdx_hw_tag.ver_assembly = barcode[7] - '0'; barcode[4] = '\0'; tdx_hw_tag.prodid = simple_strtoul(barcode, NULL, 10); /* Parse second part of the barcode (serial number */ barcode += 8; tdx_serial = simple_strtoul(barcode, NULL, 10); return 0; } static int do_cfgblock_create(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { u8 *config_block; struct toradex_tag *tag; size_t size = TDX_CFG_BLOCK_MAX_SIZE; int offset = 0; int ret = CMD_RET_SUCCESS; int err; int force_overwrite = 0; /* 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); if (argc >= 3) { if (argv[2][0] == '-' && argv[2][1] == 'y') force_overwrite = 1; } read_tdx_cfg_block(); if (valid_cfgblock) { #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) /* * On NAND devices, recreation is only allowed if the page is * empty (config block invalid...) */ printf("NAND erase block %d need to be erased before creating a Toradex config block\n", CONFIG_TDX_CFG_BLOCK_OFFSET / get_nand_dev_by_index(0)->erasesize); goto out; #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) /* * On NOR devices, recreation is only allowed if the sector is * empty and write protection is off (config block invalid...) */ printf("NOR sector at offset 0x%02x need to be erased and unprotected before creating a Toradex config block\n", CONFIG_TDX_CFG_BLOCK_OFFSET); goto out; #else if (!force_overwrite) { char message[CONFIG_SYS_CBSIZE]; sprintf(message, "A valid Toradex config block is present, still recreate? [y/N] "); if (!cli_readline(message)) goto out; if (console_buffer[0] != 'y' && console_buffer[0] != 'Y') goto out; } #endif } /* Parse new Toradex config block data... */ if (argc < 3 || (force_overwrite && argc < 4)) { err = get_cfgblock_interactive(); } else { if (force_overwrite) err = get_cfgblock_barcode(argv[3]); else err = get_cfgblock_barcode(argv[2]); } if (err) { ret = CMD_RET_FAILURE; goto out; } /* Convert serial number to MAC address (the storage format) */ tdx_eth_addr.oui = htonl(0x00142dUL << 8); tdx_eth_addr.nic = htonl(tdx_serial << 8); /* Valid Tag */ tag = (struct toradex_tag *)config_block; tag->id = TAG_VALID; tag->flags = TAG_FLAG_VALID; tag->len = 0; offset += 4; /* Product Tag */ tag = (struct toradex_tag *)(config_block + offset); tag->id = TAG_HW; tag->flags = TAG_FLAG_VALID; tag->len = 2; offset += 4; memcpy(config_block + offset, &tdx_hw_tag, 8); offset += 8; /* MAC Tag */ tag = (struct toradex_tag *)(config_block + offset); tag->id = TAG_MAC; tag->flags = TAG_FLAG_VALID; tag->len = 2; offset += 4; memcpy(config_block + offset, &tdx_eth_addr, 6); offset += 6; memset(config_block + offset, 0, 32 - offset); #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC) err = tdx_cfg_block_mmc_storage(config_block, 1); #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) err = write_tdx_cfg_block_to_nand(config_block); #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) err = write_tdx_cfg_block_to_nor(config_block); #else err = -EINVAL; #endif if (err) { printf("Failed to write Toradex config block: %d\n", ret); ret = CMD_RET_FAILURE; goto out; } printf("Toradex config block successfully written\n"); out: free(config_block); return ret; } static int do_cfgblock(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int ret; if (argc < 2) return CMD_RET_USAGE; if (!strcmp(argv[1], "create")) { return do_cfgblock_create(cmdtp, flag, argc, argv); } else if (!strcmp(argv[1], "reload")) { ret = read_tdx_cfg_block(); if (ret) { printf("Failed to reload Toradex config block: %d\n", ret); return CMD_RET_FAILURE; } return CMD_RET_SUCCESS; } return CMD_RET_USAGE; } U_BOOT_CMD(cfgblock, 4, 0, do_cfgblock, "Toradex config block handling commands", "create [-y] [barcode] - (Re-)create Toradex config block\n" "cfgblock reload - Reload Toradex config block from flash" );