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Diffstat (limited to 'board/toradex/common/tdx-cfg-block.c')
-rw-r--r--board/toradex/common/tdx-cfg-block.c544
1 files changed, 544 insertions, 0 deletions
diff --git a/board/toradex/common/tdx-cfg-block.c b/board/toradex/common/tdx-cfg-block.c
new file mode 100644
index 0000000..0014ce8
--- /dev/null
+++ b/board/toradex/common/tdx-cfg-block.c
@@ -0,0 +1,544 @@
+/*
+ * Copyright (c) 2016 Toradex, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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>
+
+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->block_dev.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;
+ }
+ /* Flush cache after read */
+ flush_cache((ulong)(unsigned char *)config_block, 512);
+ } 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(nand_info[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(nand_info[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 = getenv("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 / nand_info[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"
+);