/*
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* Copyright (c) 2016 Toradex, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include "tdx-cfg-block.h"
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#if defined(CONFIG_TARGET_APALIS_IMX6) || defined(CONFIG_TARGET_COLIBRI_IMX6)
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#include <asm/arch/sys_proto.h>
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#else
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#define is_cpu_type(cpu) (0)
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#endif
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#if defined(CONFIG_CPU_PXA27X)
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#include <asm/arch-pxa/pxa.h>
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#else
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#define cpu_is_pxa27x(cpu) (0)
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#endif
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#include <cli.h>
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#include <console.h>
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#include <flash.h>
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#include <malloc.h>
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#include <mmc.h>
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#include <nand.h>
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#include <asm/mach-types.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define TAG_VALID 0xcf01
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#define TAG_MAC 0x0000
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#define TAG_HW 0x0008
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#define TAG_INVALID 0xffff
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#define TAG_FLAG_VALID 0x1
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#if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
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#define TDX_CFG_BLOCK_MAX_SIZE 512
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#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
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#define TDX_CFG_BLOCK_MAX_SIZE 64
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#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
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#define TDX_CFG_BLOCK_MAX_SIZE 64
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#else
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#error Toradex config block location not set
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#endif
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struct toradex_tag {
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u32 len:14;
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u32 flags:2;
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u32 id:16;
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};
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bool valid_cfgblock;
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struct toradex_hw tdx_hw_tag;
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struct toradex_eth_addr tdx_eth_addr;
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u32 tdx_serial;
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const char * const toradex_modules[] = {
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[0] = "UNKNOWN MODULE",
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[1] = "Colibri PXA270 312MHz",
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[2] = "Colibri PXA270 520MHz",
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[3] = "Colibri PXA320 806MHz",
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[4] = "Colibri PXA300 208MHz",
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[5] = "Colibri PXA310 624MHz",
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[6] = "Colibri PXA320 806MHz IT",
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[7] = "Colibri PXA300 208MHz XT",
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[8] = "Colibri PXA270 312MHz",
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[9] = "Colibri PXA270 520MHz",
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[10] = "Colibri VF50 128MB", /* not currently on sale */
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[11] = "Colibri VF61 256MB",
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[12] = "Colibri VF61 256MB IT",
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[13] = "Colibri VF50 128MB IT",
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[14] = "Colibri iMX6 Solo 256MB",
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[15] = "Colibri iMX6 DualLite 512MB",
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[16] = "Colibri iMX6 Solo 256MB IT",
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[17] = "Colibri iMX6 DualLite 512MB IT",
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[18] = "UNKNOWN MODULE",
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[19] = "UNKNOWN MODULE",
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[20] = "Colibri T20 256MB",
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[21] = "Colibri T20 512MB",
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[22] = "Colibri T20 512MB IT",
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[23] = "Colibri T30 1GB",
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[24] = "Colibri T20 256MB IT",
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[25] = "Apalis T30 2GB",
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[26] = "Apalis T30 1GB",
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[27] = "Apalis iMX6 Quad 1GB",
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[28] = "Apalis iMX6 Quad 2GB IT",
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[29] = "Apalis iMX6 Dual 512MB",
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[30] = "Colibri T30 1GB IT",
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[31] = "Apalis T30 1GB IT",
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[32] = "Colibri iMX7 Solo 256MB",
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[33] = "Colibri iMX7 Dual 512MB",
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[34] = "Apalis TK1 2GB",
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[35] = "Apalis iMX6 Dual 1GB IT",
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};
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#ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC
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static int tdx_cfg_block_mmc_storage(u8 *config_block, int write)
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{
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struct mmc *mmc;
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int dev = CONFIG_TDX_CFG_BLOCK_DEV;
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int offset = CONFIG_TDX_CFG_BLOCK_OFFSET;
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uint part = CONFIG_TDX_CFG_BLOCK_PART;
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uint blk_start;
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int ret = 0;
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/* Read production parameter config block from eMMC */
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mmc = find_mmc_device(dev);
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if (!mmc) {
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puts("No MMC card found\n");
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ret = -ENODEV;
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goto out;
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}
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if (part != mmc_get_blk_desc(mmc)->hwpart) {
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if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) {
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puts("MMC partition switch failed\n");
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ret = -ENODEV;
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goto out;
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}
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}
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if (offset < 0)
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offset += mmc->capacity;
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blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len;
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if (!write) {
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/* Careful reads a whole block of 512 bytes into config_block */
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if (blk_dread(mmc_get_blk_desc(mmc), blk_start, 1,
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(unsigned char *)config_block) != 1) {
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ret = -EIO;
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goto out;
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}
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} else {
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/* Just writing one 512 byte block */
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if (blk_dwrite(mmc_get_blk_desc(mmc), blk_start, 1,
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(unsigned char *)config_block) != 1) {
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ret = -EIO;
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goto out;
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}
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}
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out:
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/* Switch back to regular eMMC user partition */
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blk_select_hwpart_devnum(IF_TYPE_MMC, 0, 0);
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return ret;
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}
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#endif
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#ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NAND
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static int read_tdx_cfg_block_from_nand(unsigned char *config_block)
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{
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size_t size = TDX_CFG_BLOCK_MAX_SIZE;
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/* Read production parameter config block from NAND page */
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return nand_read_skip_bad(get_nand_dev_by_index(0),
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CONFIG_TDX_CFG_BLOCK_OFFSET,
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&size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
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config_block);
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}
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static int write_tdx_cfg_block_to_nand(unsigned char *config_block)
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{
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size_t size = TDX_CFG_BLOCK_MAX_SIZE;
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/* Write production parameter config block to NAND page */
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return nand_write_skip_bad(get_nand_dev_by_index(0),
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CONFIG_TDX_CFG_BLOCK_OFFSET,
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&size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
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config_block, WITH_WR_VERIFY);
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}
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#endif
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#ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NOR
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static int read_tdx_cfg_block_from_nor(unsigned char *config_block)
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{
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/* Read production parameter config block from NOR flash */
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memcpy(config_block, (void *)CONFIG_TDX_CFG_BLOCK_OFFSET,
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TDX_CFG_BLOCK_MAX_SIZE);
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return 0;
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}
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static int write_tdx_cfg_block_to_nor(unsigned char *config_block)
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{
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/* Write production parameter config block to NOR flash */
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return flash_write((void *)config_block, CONFIG_TDX_CFG_BLOCK_OFFSET,
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TDX_CFG_BLOCK_MAX_SIZE);
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}
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#endif
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int read_tdx_cfg_block(void)
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{
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int ret = 0;
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u8 *config_block = NULL;
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struct toradex_tag *tag;
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size_t size = TDX_CFG_BLOCK_MAX_SIZE;
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int offset;
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/* Allocate RAM area for config block */
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config_block = memalign(ARCH_DMA_MINALIGN, size);
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if (!config_block) {
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printf("Not enough malloc space available!\n");
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return -ENOMEM;
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}
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memset(config_block, 0, size);
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#if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
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ret = tdx_cfg_block_mmc_storage(config_block, 0);
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#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
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ret = read_tdx_cfg_block_from_nand(config_block);
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#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
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ret = read_tdx_cfg_block_from_nor(config_block);
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#else
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ret = -EINVAL;
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#endif
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if (ret)
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goto out;
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/* Expect a valid tag first */
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tag = (struct toradex_tag *)config_block;
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if (tag->flags != TAG_FLAG_VALID || tag->id != TAG_VALID) {
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valid_cfgblock = false;
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ret = -EINVAL;
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goto out;
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}
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valid_cfgblock = true;
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offset = 4;
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while (offset < TDX_CFG_BLOCK_MAX_SIZE) {
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tag = (struct toradex_tag *)(config_block + offset);
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offset += 4;
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if (tag->id == TAG_INVALID)
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break;
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if (tag->flags == TAG_FLAG_VALID) {
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switch (tag->id) {
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case TAG_MAC:
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memcpy(&tdx_eth_addr, config_block + offset,
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6);
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/* NIC part of MAC address is serial number */
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tdx_serial = ntohl(tdx_eth_addr.nic) >> 8;
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break;
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case TAG_HW:
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memcpy(&tdx_hw_tag, config_block + offset, 8);
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break;
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}
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}
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/* Get to next tag according to current tags length */
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offset += tag->len * 4;
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}
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/* Cap product id to avoid issues with a yet unknown one */
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if (tdx_hw_tag.prodid > (sizeof(toradex_modules) /
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sizeof(toradex_modules[0])))
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tdx_hw_tag.prodid = 0;
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out:
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free(config_block);
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return ret;
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}
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static int get_cfgblock_interactive(void)
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{
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char message[CONFIG_SYS_CBSIZE];
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char *soc;
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char it = 'n';
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int len;
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if (cpu_is_pxa27x())
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sprintf(message, "Is the module the 312 MHz version? [y/N] ");
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else
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sprintf(message, "Is the module an IT version? [y/N] ");
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len = cli_readline(message);
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it = console_buffer[0];
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soc = env_get("soc");
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if (!strcmp("mx6", soc)) {
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#ifdef CONFIG_MACH_TYPE
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if (it == 'y' || it == 'Y')
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if (is_cpu_type(MXC_CPU_MX6Q))
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tdx_hw_tag.prodid = APALIS_IMX6Q_IT;
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else
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tdx_hw_tag.prodid = APALIS_IMX6D_IT;
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else
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if (is_cpu_type(MXC_CPU_MX6Q))
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tdx_hw_tag.prodid = APALIS_IMX6Q;
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else
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tdx_hw_tag.prodid = APALIS_IMX6D;
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#else
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if (it == 'y' || it == 'Y')
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if (is_cpu_type(MXC_CPU_MX6DL))
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tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT;
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else
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tdx_hw_tag.prodid = COLIBRI_IMX6S_IT;
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else
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if (is_cpu_type(MXC_CPU_MX6DL))
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tdx_hw_tag.prodid = COLIBRI_IMX6DL;
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else
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tdx_hw_tag.prodid = COLIBRI_IMX6S;
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#endif /* CONFIG_MACH_TYPE */
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} else if (!strcmp("imx7d", soc)) {
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tdx_hw_tag.prodid = COLIBRI_IMX7D;
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} else if (!strcmp("imx7s", soc)) {
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tdx_hw_tag.prodid = COLIBRI_IMX7S;
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} else if (!strcmp("tegra20", soc)) {
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if (it == 'y' || it == 'Y')
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if (gd->ram_size == 0x10000000)
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tdx_hw_tag.prodid = COLIBRI_T20_256MB_IT;
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else
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tdx_hw_tag.prodid = COLIBRI_T20_512MB_IT;
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else
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if (gd->ram_size == 0x10000000)
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tdx_hw_tag.prodid = COLIBRI_T20_256MB;
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else
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tdx_hw_tag.prodid = COLIBRI_T20_512MB;
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} else if (cpu_is_pxa27x()) {
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if (it == 'y' || it == 'Y')
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tdx_hw_tag.prodid = COLIBRI_PXA270_312MHZ;
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else
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tdx_hw_tag.prodid = COLIBRI_PXA270_520MHZ;
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#ifdef CONFIG_MACH_TYPE
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} else if (!strcmp("tegra30", soc)) {
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if (CONFIG_MACH_TYPE == MACH_TYPE_APALIS_T30) {
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if (it == 'y' || it == 'Y')
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tdx_hw_tag.prodid = APALIS_T30_IT;
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else
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if (gd->ram_size == 0x40000000)
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tdx_hw_tag.prodid = APALIS_T30_1GB;
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else
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tdx_hw_tag.prodid = APALIS_T30_2GB;
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} else {
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if (it == 'y' || it == 'Y')
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tdx_hw_tag.prodid = COLIBRI_T30_IT;
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else
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tdx_hw_tag.prodid = COLIBRI_T30;
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}
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#endif /* CONFIG_MACH_TYPE */
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} else if (!strcmp("tegra124", soc)) {
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tdx_hw_tag.prodid = APALIS_TK1_2GB;
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} else if (!strcmp("vf500", soc)) {
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if (it == 'y' || it == 'Y')
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tdx_hw_tag.prodid = COLIBRI_VF50_IT;
|
else
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tdx_hw_tag.prodid = COLIBRI_VF50;
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} else if (!strcmp("vf610", soc)) {
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if (it == 'y' || it == 'Y')
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tdx_hw_tag.prodid = COLIBRI_VF61_IT;
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else
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tdx_hw_tag.prodid = COLIBRI_VF61;
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} else {
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printf("Module type not detectable due to unknown SoC\n");
|
return -1;
|
}
|
|
while (len < 4) {
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sprintf(message, "Enter the module version (e.g. V1.1B): V");
|
len = cli_readline(message);
|
}
|
|
tdx_hw_tag.ver_major = console_buffer[0] - '0';
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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) {
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sprintf(message, "Enter module serial number: ");
|
len = cli_readline(message);
|
}
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|
tdx_serial = simple_strtoul(console_buffer, NULL, 10);
|
|
return 0;
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}
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|
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"
|
);
|
