// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2016 NXP Semiconductor, Inc. */ #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_FSL_LSCH3 #include #elif defined(CONFIG_FSL_LSCH2) #include #endif #if CONFIG_IS_ENABLED(ARMV8_SEC_FIRMWARE_SUPPORT) #include #endif #ifdef CONFIG_CHAIN_OF_TRUST #include #endif #ifdef CONFIG_SYS_LS_PPA_FW_IN_NAND #include #elif defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) #include #endif DECLARE_GLOBAL_DATA_PTR; int ppa_init(void) { unsigned int el = current_el(); void *ppa_fit_addr; u32 *boot_loc_ptr_l, *boot_loc_ptr_h; u32 *loadable_l, *loadable_h; int ret; #ifdef CONFIG_CHAIN_OF_TRUST uintptr_t ppa_esbc_hdr = 0; uintptr_t ppa_img_addr = 0; #if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \ defined(CONFIG_SYS_LS_PPA_FW_IN_NAND) void *ppa_hdr_ddr; #endif #endif /* Skip if running at lower exception level */ if (el < 3) { debug("Skipping PPA init, running at EL%d\n", el); return 0; } #ifdef CONFIG_SYS_LS_PPA_FW_IN_XIP ppa_fit_addr = (void *)CONFIG_SYS_LS_PPA_FW_ADDR; debug("%s: PPA image load from XIP\n", __func__); #ifdef CONFIG_CHAIN_OF_TRUST ppa_esbc_hdr = CONFIG_SYS_LS_PPA_ESBC_ADDR; #endif #else /* !CONFIG_SYS_LS_PPA_FW_IN_XIP */ size_t fw_length, fdt_header_len = sizeof(struct fdt_header); /* Copy PPA image from MMC/SD/NAND to allocated memory */ #ifdef CONFIG_SYS_LS_PPA_FW_IN_MMC struct mmc *mmc; int dev = CONFIG_SYS_MMC_ENV_DEV; struct fdt_header *fitp; u32 cnt; u32 blk; debug("%s: PPA image load from eMMC/SD\n", __func__); ret = mmc_initialize(gd->bd); if (ret) { printf("%s: mmc_initialize() failed\n", __func__); return ret; } mmc = find_mmc_device(dev); if (!mmc) { printf("PPA: MMC cannot find device for PPA firmware\n"); return -ENODEV; } ret = mmc_init(mmc); if (ret) { printf("%s: mmc_init() failed\n", __func__); return ret; } fitp = malloc(roundup(fdt_header_len, 512)); if (!fitp) { printf("PPA: malloc failed for FIT header(size 0x%zx)\n", roundup(fdt_header_len, 512)); return -ENOMEM; } blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512; cnt = DIV_ROUND_UP(fdt_header_len, 512); debug("%s: MMC read PPA FIT header: dev # %u, block # %u, count %u\n", __func__, dev, blk, cnt); ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, fitp); if (ret != cnt) { free(fitp); printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n", CONFIG_SYS_LS_PPA_FW_ADDR); return -EIO; } ret = fdt_check_header(fitp); if (ret) { free(fitp); printf("%s: fdt_check_header() failed\n", __func__); return ret; } #ifdef CONFIG_CHAIN_OF_TRUST ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE); if (!ppa_hdr_ddr) { printf("PPA: malloc failed for PPA header\n"); return -ENOMEM; } blk = CONFIG_SYS_LS_PPA_ESBC_ADDR >> 9; cnt = DIV_ROUND_UP(CONFIG_LS_PPA_ESBC_HDR_SIZE, 512); ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, ppa_hdr_ddr); if (ret != cnt) { free(ppa_hdr_ddr); printf("MMC/SD read of PPA header failed\n"); return -EIO; } debug("Read PPA header to 0x%p\n", ppa_hdr_ddr); ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr; #endif fw_length = fdt_totalsize(fitp); free(fitp); fw_length = roundup(fw_length, 512); ppa_fit_addr = malloc(fw_length); if (!ppa_fit_addr) { printf("PPA: malloc failed for PPA image(size 0x%zx)\n", fw_length); return -ENOMEM; } blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512; cnt = DIV_ROUND_UP(fw_length, 512); debug("%s: MMC read PPA FIT image: dev # %u, block # %u, count %u\n", __func__, dev, blk, cnt); ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, ppa_fit_addr); if (ret != cnt) { free(ppa_fit_addr); printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n", CONFIG_SYS_LS_PPA_FW_ADDR); return -EIO; } #elif defined(CONFIG_SYS_LS_PPA_FW_IN_NAND) struct fdt_header fit; debug("%s: PPA image load from NAND\n", __func__); nand_init(); ret = nand_read(get_nand_dev_by_index(0), (loff_t)CONFIG_SYS_LS_PPA_FW_ADDR, &fdt_header_len, (u_char *)&fit); if (ret == -EUCLEAN) { printf("NAND read of PPA FIT header at offset 0x%x failed\n", CONFIG_SYS_LS_PPA_FW_ADDR); return -EIO; } ret = fdt_check_header(&fit); if (ret) { printf("%s: fdt_check_header() failed\n", __func__); return ret; } #ifdef CONFIG_CHAIN_OF_TRUST ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE); if (!ppa_hdr_ddr) { printf("PPA: malloc failed for PPA header\n"); return -ENOMEM; } fw_length = CONFIG_LS_PPA_ESBC_HDR_SIZE; ret = nand_read(get_nand_dev_by_index(0), (loff_t)CONFIG_SYS_LS_PPA_ESBC_ADDR, &fw_length, (u_char *)ppa_hdr_ddr); if (ret == -EUCLEAN) { free(ppa_hdr_ddr); printf("NAND read of PPA firmware at offset 0x%x failed\n", CONFIG_SYS_LS_PPA_FW_ADDR); return -EIO; } debug("Read PPA header to 0x%p\n", ppa_hdr_ddr); ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr; #endif fw_length = fdt_totalsize(&fit); ppa_fit_addr = malloc(fw_length); if (!ppa_fit_addr) { printf("PPA: malloc failed for PPA image(size 0x%zx)\n", fw_length); return -ENOMEM; } ret = nand_read(get_nand_dev_by_index(0), (loff_t)CONFIG_SYS_LS_PPA_FW_ADDR, &fw_length, (u_char *)ppa_fit_addr); if (ret == -EUCLEAN) { free(ppa_fit_addr); printf("NAND read of PPA firmware at offset 0x%x failed\n", CONFIG_SYS_LS_PPA_FW_ADDR); return -EIO; } #else #error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined" #endif #endif #ifdef CONFIG_CHAIN_OF_TRUST ppa_img_addr = (uintptr_t)ppa_fit_addr; if (fsl_check_boot_mode_secure() != 0) { /* * In case of failure in validation, fsl_secboot_validate * would not return back in case of Production environment * with ITS=1. In Development environment (ITS=0 and * SB_EN=1), the function may return back in case of * non-fatal failures. */ ret = fsl_secboot_validate(ppa_esbc_hdr, PPA_KEY_HASH, &ppa_img_addr); if (ret != 0) printf("SEC firmware(s) validation failed\n"); else printf("SEC firmware(s) validation Successful\n"); } #if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \ defined(CONFIG_SYS_LS_PPA_FW_IN_NAND) free(ppa_hdr_ddr); #endif #endif #ifdef CONFIG_FSL_LSCH3 struct ccsr_gur __iomem *gur = (void *)(CFG_SYS_FSL_GUTS_ADDR); boot_loc_ptr_l = &gur->bootlocptrl; boot_loc_ptr_h = &gur->bootlocptrh; /* Assign addresses to loadable ptrs */ loadable_l = &gur->scratchrw[4]; loadable_h = &gur->scratchrw[5]; #elif defined(CONFIG_FSL_LSCH2) struct ccsr_scfg __iomem *scfg = (void *)(CFG_SYS_FSL_SCFG_ADDR); boot_loc_ptr_l = &scfg->scratchrw[1]; boot_loc_ptr_h = &scfg->scratchrw[0]; /* Assign addresses to loadable ptrs */ loadable_l = &scfg->scratchrw[2]; loadable_h = &scfg->scratchrw[3]; #endif debug("fsl-ppa: boot_loc_ptr_l = 0x%p, boot_loc_ptr_h =0x%p\n", boot_loc_ptr_l, boot_loc_ptr_h); ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_h, loadable_l, loadable_h); #if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \ defined(CONFIG_SYS_LS_PPA_FW_IN_NAND) free(ppa_fit_addr); #endif return ret; }