* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <malloc.h>
#include <config.h>
#include <errno.h>
#include <asm/system.h>
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
#include <asm/armv8/sec_firmware.h>
#endif
+#ifdef CONFIG_CHAIN_OF_TRUST
+#include <fsl_validate.h>
+#endif
+
+#ifdef CONFIG_SYS_LS_PPA_FW_IN_NAND
+#include <nand.h>
+#elif defined(CONFIG_SYS_LS_PPA_FW_IN_MMC)
+#include <mmc.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
int ppa_init(void)
{
- const void *ppa_fit_addr;
+ unsigned int el = current_el();
+ void *ppa_fit_addr;
u32 *boot_loc_ptr_l, *boot_loc_ptr_h;
int ret;
-#ifdef CONFIG_SYS_LS_PPA_FW_IN_NOR
+#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 = mmc->block_dev.block_read(&mmc->block_dev, 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;
+ }
+
+ /* flush cache after read */
+ flush_cache((ulong)fitp, cnt * 512);
+
+ 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 = mmc->block_dev.block_read(&mmc->block_dev, 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);
+
+ /* flush cache after read */
+ flush_cache((ulong)ppa_hdr_ddr, cnt * 512);
+
+ 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 = mmc->block_dev.block_read(&mmc->block_dev,
+ 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;
+ }
+
+ /* flush cache after read */
+ flush_cache((ulong)ppa_fit_addr, cnt * 512);
+
+#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);
+
+ /* flush cache after read */
+ flush_cache((ulong)ppa_hdr_ddr, fw_length);
+
+ 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;
+ }
+
+ /* flush cache after read */
+ flush_cache((ulong)ppa_fit_addr, fw_length);
#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("PPA validation failed\n");
+ else
+ printf("PPA 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 *)(CONFIG_SYS_FSL_GUTS_ADDR);
boot_loc_ptr_l = &gur->bootlocptrl;
boot_loc_ptr_l, boot_loc_ptr_h);
ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_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;
}
projects / u-boot / blobdiff