| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (c) 2016 Toradex, Inc. |
| */ |
| |
| #include <common.h> |
| #include "tdx-cfg-block.h" |
| |
| #if defined(CONFIG_TARGET_APALIS_IMX6) || defined(CONFIG_TARGET_COLIBRI_IMX6) |
| #include <asm/arch/sys_proto.h> |
| #else |
| #define is_cpu_type(cpu) (0) |
| #endif |
| #if defined(CONFIG_CPU_PXA27X) |
| #include <asm/arch-pxa/pxa.h> |
| #else |
| #define cpu_is_pxa27x(cpu) (0) |
| #endif |
| #include <cli.h> |
| #include <console.h> |
| #include <flash.h> |
| #include <malloc.h> |
| #include <mmc.h> |
| #include <nand.h> |
| #include <asm/mach-types.h> |
| |
| 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", |
| }; |
| |
| #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 (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; |
| |
| /* Read production parameter config block from NAND page */ |
| return nand_read_skip_bad(get_nand_dev_by_index(0), |
| 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'; |
| int len; |
| |
| 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]; |
| |
| soc = env_get("soc"); |
| if (!strcmp("mx6", soc)) { |
| #ifdef CONFIG_MACH_TYPE |
| 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; |
| #else |
| if (it == 'y' || it == 'Y') |
| if (is_cpu_type(MXC_CPU_MX6DL)) |
| tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT; |
| else |
| tdx_hw_tag.prodid = COLIBRI_IMX6S_IT; |
| else |
| if (is_cpu_type(MXC_CPU_MX6DL)) |
| tdx_hw_tag.prodid = COLIBRI_IMX6DL; |
| else |
| tdx_hw_tag.prodid = COLIBRI_IMX6S; |
| #endif /* CONFIG_MACH_TYPE */ |
| } else if (!strcmp("imx7d", soc)) { |
| tdx_hw_tag.prodid = COLIBRI_IMX7D; |
| } else if (!strcmp("imx7s", soc)) { |
| tdx_hw_tag.prodid = COLIBRI_IMX7S; |
| } 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; |
| } else { |
| 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; |
| |
| /* 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); |
| |
| 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 |
| 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) |
| err = get_cfgblock_interactive(); |
| 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, 3, 0, do_cfgblock, |
| "Toradex config block handling commands", |
| "create [barcode] - (Re-)create Toradex config block\n" |
| "cfgblock reload - Reload Toradex config block from flash" |
| ); |