285 lines
7.2 KiB
C
285 lines
7.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2016 NXP Semiconductor, Inc.
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*/
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#include <common.h>
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#include <log.h>
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#include <malloc.h>
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#include <config.h>
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#include <errno.h>
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#include <asm/cache.h>
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#include <asm/global_data.h>
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#include <asm/system.h>
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#include <asm/types.h>
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#include <asm/arch/soc.h>
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#ifdef CONFIG_FSL_LSCH3
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#include <asm/arch/immap_lsch3.h>
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#elif defined(CONFIG_FSL_LSCH2)
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#include <asm/arch/immap_lsch2.h>
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#endif
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#if CONFIG_IS_ENABLED(ARMV8_SEC_FIRMWARE_SUPPORT)
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#include <asm/armv8/sec_firmware.h>
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#endif
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#ifdef CONFIG_CHAIN_OF_TRUST
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#include <fsl_validate.h>
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#endif
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#ifdef CONFIG_SYS_LS_PPA_FW_IN_NAND
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#include <nand.h>
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#elif defined(CONFIG_SYS_LS_PPA_FW_IN_MMC)
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#include <mmc.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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int ppa_init(void)
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{
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unsigned int el = current_el();
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void *ppa_fit_addr;
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u32 *boot_loc_ptr_l, *boot_loc_ptr_h;
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u32 *loadable_l, *loadable_h;
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int ret;
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#ifdef CONFIG_CHAIN_OF_TRUST
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uintptr_t ppa_esbc_hdr = 0;
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uintptr_t ppa_img_addr = 0;
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#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
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defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
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void *ppa_hdr_ddr;
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#endif
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#endif
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/* Skip if running at lower exception level */
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if (el < 3) {
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debug("Skipping PPA init, running at EL%d\n", el);
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return 0;
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}
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#ifdef CONFIG_SYS_LS_PPA_FW_IN_XIP
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ppa_fit_addr = (void *)CONFIG_SYS_LS_PPA_FW_ADDR;
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debug("%s: PPA image load from XIP\n", __func__);
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#ifdef CONFIG_CHAIN_OF_TRUST
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ppa_esbc_hdr = CONFIG_SYS_LS_PPA_ESBC_ADDR;
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#endif
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#else /* !CONFIG_SYS_LS_PPA_FW_IN_XIP */
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size_t fw_length, fdt_header_len = sizeof(struct fdt_header);
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/* Copy PPA image from MMC/SD/NAND to allocated memory */
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#ifdef CONFIG_SYS_LS_PPA_FW_IN_MMC
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struct mmc *mmc;
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int dev = CONFIG_SYS_MMC_ENV_DEV;
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struct fdt_header *fitp;
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u32 cnt;
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u32 blk;
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debug("%s: PPA image load from eMMC/SD\n", __func__);
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ret = mmc_initialize(gd->bd);
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if (ret) {
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printf("%s: mmc_initialize() failed\n", __func__);
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return ret;
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}
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mmc = find_mmc_device(dev);
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if (!mmc) {
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printf("PPA: MMC cannot find device for PPA firmware\n");
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return -ENODEV;
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}
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ret = mmc_init(mmc);
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if (ret) {
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printf("%s: mmc_init() failed\n", __func__);
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return ret;
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}
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fitp = malloc(roundup(fdt_header_len, 512));
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if (!fitp) {
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printf("PPA: malloc failed for FIT header(size 0x%zx)\n",
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roundup(fdt_header_len, 512));
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return -ENOMEM;
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}
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blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512;
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cnt = DIV_ROUND_UP(fdt_header_len, 512);
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debug("%s: MMC read PPA FIT header: dev # %u, block # %u, count %u\n",
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__func__, dev, blk, cnt);
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ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, fitp);
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if (ret != cnt) {
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free(fitp);
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printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
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CONFIG_SYS_LS_PPA_FW_ADDR);
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return -EIO;
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}
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ret = fdt_check_header(fitp);
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if (ret) {
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free(fitp);
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printf("%s: fdt_check_header() failed\n", __func__);
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return ret;
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}
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#ifdef CONFIG_CHAIN_OF_TRUST
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ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE);
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if (!ppa_hdr_ddr) {
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printf("PPA: malloc failed for PPA header\n");
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return -ENOMEM;
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}
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blk = CONFIG_SYS_LS_PPA_ESBC_ADDR >> 9;
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cnt = DIV_ROUND_UP(CONFIG_LS_PPA_ESBC_HDR_SIZE, 512);
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ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, ppa_hdr_ddr);
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if (ret != cnt) {
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free(ppa_hdr_ddr);
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printf("MMC/SD read of PPA header failed\n");
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return -EIO;
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}
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debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
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ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
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#endif
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fw_length = fdt_totalsize(fitp);
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free(fitp);
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fw_length = roundup(fw_length, 512);
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ppa_fit_addr = malloc(fw_length);
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if (!ppa_fit_addr) {
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printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
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fw_length);
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return -ENOMEM;
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}
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blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512;
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cnt = DIV_ROUND_UP(fw_length, 512);
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debug("%s: MMC read PPA FIT image: dev # %u, block # %u, count %u\n",
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__func__, dev, blk, cnt);
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ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, ppa_fit_addr);
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if (ret != cnt) {
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free(ppa_fit_addr);
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printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
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CONFIG_SYS_LS_PPA_FW_ADDR);
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return -EIO;
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}
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#elif defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
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struct fdt_header fit;
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debug("%s: PPA image load from NAND\n", __func__);
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nand_init();
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ret = nand_read(get_nand_dev_by_index(0),
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(loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
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&fdt_header_len, (u_char *)&fit);
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if (ret == -EUCLEAN) {
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printf("NAND read of PPA FIT header at offset 0x%x failed\n",
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CONFIG_SYS_LS_PPA_FW_ADDR);
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return -EIO;
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}
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ret = fdt_check_header(&fit);
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if (ret) {
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printf("%s: fdt_check_header() failed\n", __func__);
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return ret;
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}
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#ifdef CONFIG_CHAIN_OF_TRUST
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ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE);
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if (!ppa_hdr_ddr) {
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printf("PPA: malloc failed for PPA header\n");
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return -ENOMEM;
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}
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fw_length = CONFIG_LS_PPA_ESBC_HDR_SIZE;
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ret = nand_read(get_nand_dev_by_index(0),
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(loff_t)CONFIG_SYS_LS_PPA_ESBC_ADDR,
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&fw_length, (u_char *)ppa_hdr_ddr);
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if (ret == -EUCLEAN) {
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free(ppa_hdr_ddr);
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printf("NAND read of PPA firmware at offset 0x%x failed\n",
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CONFIG_SYS_LS_PPA_FW_ADDR);
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return -EIO;
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}
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debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
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ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
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#endif
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fw_length = fdt_totalsize(&fit);
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ppa_fit_addr = malloc(fw_length);
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if (!ppa_fit_addr) {
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printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
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fw_length);
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return -ENOMEM;
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}
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ret = nand_read(get_nand_dev_by_index(0),
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(loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
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&fw_length, (u_char *)ppa_fit_addr);
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if (ret == -EUCLEAN) {
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free(ppa_fit_addr);
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printf("NAND read of PPA firmware at offset 0x%x failed\n",
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CONFIG_SYS_LS_PPA_FW_ADDR);
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return -EIO;
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}
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#else
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#error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined"
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#endif
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#endif
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#ifdef CONFIG_CHAIN_OF_TRUST
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ppa_img_addr = (uintptr_t)ppa_fit_addr;
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if (fsl_check_boot_mode_secure() != 0) {
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/*
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* In case of failure in validation, fsl_secboot_validate
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* would not return back in case of Production environment
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* with ITS=1. In Development environment (ITS=0 and
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* SB_EN=1), the function may return back in case of
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* non-fatal failures.
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*/
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ret = fsl_secboot_validate(ppa_esbc_hdr,
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PPA_KEY_HASH,
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&ppa_img_addr);
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if (ret != 0)
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printf("SEC firmware(s) validation failed\n");
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else
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printf("SEC firmware(s) validation Successful\n");
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}
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#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
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defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
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free(ppa_hdr_ddr);
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#endif
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#endif
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#ifdef CONFIG_FSL_LSCH3
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struct ccsr_gur __iomem *gur = (void *)(CFG_SYS_FSL_GUTS_ADDR);
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boot_loc_ptr_l = &gur->bootlocptrl;
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boot_loc_ptr_h = &gur->bootlocptrh;
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/* Assign addresses to loadable ptrs */
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loadable_l = &gur->scratchrw[4];
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loadable_h = &gur->scratchrw[5];
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#elif defined(CONFIG_FSL_LSCH2)
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struct ccsr_scfg __iomem *scfg = (void *)(CFG_SYS_FSL_SCFG_ADDR);
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boot_loc_ptr_l = &scfg->scratchrw[1];
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boot_loc_ptr_h = &scfg->scratchrw[0];
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/* Assign addresses to loadable ptrs */
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loadable_l = &scfg->scratchrw[2];
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loadable_h = &scfg->scratchrw[3];
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#endif
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debug("fsl-ppa: boot_loc_ptr_l = 0x%p, boot_loc_ptr_h =0x%p\n",
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boot_loc_ptr_l, boot_loc_ptr_h);
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ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_h,
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loadable_l, loadable_h);
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#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
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defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
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free(ppa_fit_addr);
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#endif
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return ret;
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}
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