316 lines
6.9 KiB
C
316 lines
6.9 KiB
C
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/*
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* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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#include <platform_def.h>
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#include <arch_helpers.h>
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#include <common/debug.h>
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#include <drivers/io/io_block.h>
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#include <drivers/io/io_driver.h>
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#include <drivers/io/io_fip.h>
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#include <drivers/io/io_memmap.h>
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#include <drivers/io/io_storage.h>
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#include <drivers/mmc.h>
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#include <drivers/partition/partition.h>
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#include <lib/mmio.h>
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#include <lib/semihosting.h>
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#include <tools_share/firmware_image_package.h>
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#include "hikey_private.h"
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#define EMMC_BLOCK_SHIFT 9
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/* Page 1024, since only a few pages before 2048 are used as partition table */
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#define SERIALNO_EMMC_OFFSET (1024 * 512)
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struct plat_io_policy {
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uintptr_t *dev_handle;
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uintptr_t image_spec;
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int (*check)(const uintptr_t spec);
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};
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static const io_dev_connector_t *emmc_dev_con;
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static uintptr_t emmc_dev_handle;
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static const io_dev_connector_t *fip_dev_con;
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static uintptr_t fip_dev_handle;
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static int check_emmc(const uintptr_t spec);
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static int check_fip(const uintptr_t spec);
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static io_block_spec_t emmc_fip_spec;
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static const io_block_spec_t emmc_gpt_spec = {
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.offset = 0,
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.length = PLAT_PARTITION_BLOCK_SIZE *
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(PLAT_PARTITION_MAX_ENTRIES / 4 + 2),
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};
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static const io_block_dev_spec_t emmc_dev_spec = {
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/* It's used as temp buffer in block driver. */
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#ifdef IMAGE_BL1
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.buffer = {
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.offset = HIKEY_BL1_MMC_DATA_BASE,
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.length = HIKEY_BL1_MMC_DATA_SIZE,
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},
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#else
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.buffer = {
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.offset = HIKEY_MMC_DATA_BASE,
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.length = HIKEY_MMC_DATA_SIZE,
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},
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#endif
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.ops = {
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.read = mmc_read_blocks,
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.write = mmc_write_blocks,
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},
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.block_size = MMC_BLOCK_SIZE,
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};
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static const io_uuid_spec_t bl31_uuid_spec = {
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.uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31,
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};
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static const io_uuid_spec_t bl32_uuid_spec = {
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.uuid = UUID_SECURE_PAYLOAD_BL32,
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};
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static const io_uuid_spec_t bl32_extra1_uuid_spec = {
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.uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA1,
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};
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static const io_uuid_spec_t bl32_extra2_uuid_spec = {
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.uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA2,
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};
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static const io_uuid_spec_t bl33_uuid_spec = {
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.uuid = UUID_NON_TRUSTED_FIRMWARE_BL33,
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};
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static const io_uuid_spec_t scp_bl2_uuid_spec = {
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.uuid = UUID_SCP_FIRMWARE_SCP_BL2,
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};
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#if TRUSTED_BOARD_BOOT
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static const io_uuid_spec_t trusted_key_cert_uuid_spec = {
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.uuid = UUID_TRUSTED_KEY_CERT,
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};
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static const io_uuid_spec_t scp_fw_key_cert_uuid_spec = {
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.uuid = UUID_SCP_FW_KEY_CERT,
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};
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static const io_uuid_spec_t soc_fw_key_cert_uuid_spec = {
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.uuid = UUID_SOC_FW_KEY_CERT,
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};
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static const io_uuid_spec_t tos_fw_key_cert_uuid_spec = {
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.uuid = UUID_TRUSTED_OS_FW_KEY_CERT,
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};
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static const io_uuid_spec_t nt_fw_key_cert_uuid_spec = {
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.uuid = UUID_NON_TRUSTED_FW_KEY_CERT,
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};
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static const io_uuid_spec_t scp_fw_cert_uuid_spec = {
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.uuid = UUID_SCP_FW_CONTENT_CERT,
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};
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static const io_uuid_spec_t soc_fw_cert_uuid_spec = {
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.uuid = UUID_SOC_FW_CONTENT_CERT,
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};
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static const io_uuid_spec_t tos_fw_cert_uuid_spec = {
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.uuid = UUID_TRUSTED_OS_FW_CONTENT_CERT,
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};
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static const io_uuid_spec_t nt_fw_cert_uuid_spec = {
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.uuid = UUID_NON_TRUSTED_FW_CONTENT_CERT,
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};
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#endif /* TRUSTED_BOARD_BOOT */
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static const struct plat_io_policy policies[] = {
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[FIP_IMAGE_ID] = {
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&emmc_dev_handle,
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(uintptr_t)&emmc_fip_spec,
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check_emmc
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},
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[SCP_BL2_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&scp_bl2_uuid_spec,
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check_fip
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},
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[BL31_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl31_uuid_spec,
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check_fip
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},
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[BL32_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl32_uuid_spec,
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check_fip
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},
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[BL32_EXTRA1_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl32_extra1_uuid_spec,
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check_fip
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},
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[BL32_EXTRA2_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl32_extra2_uuid_spec,
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check_fip
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},
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[BL33_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl33_uuid_spec,
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check_fip
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},
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#if TRUSTED_BOARD_BOOT
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[TRUSTED_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&trusted_key_cert_uuid_spec,
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check_fip
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},
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[SCP_FW_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&scp_fw_key_cert_uuid_spec,
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check_fip
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},
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[SOC_FW_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&soc_fw_key_cert_uuid_spec,
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check_fip
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},
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[TRUSTED_OS_FW_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&tos_fw_key_cert_uuid_spec,
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check_fip
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},
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[NON_TRUSTED_FW_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&nt_fw_key_cert_uuid_spec,
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check_fip
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},
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[SCP_FW_CONTENT_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&scp_fw_cert_uuid_spec,
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check_fip
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},
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[SOC_FW_CONTENT_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&soc_fw_cert_uuid_spec,
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check_fip
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},
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[TRUSTED_OS_FW_CONTENT_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&tos_fw_cert_uuid_spec,
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check_fip
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},
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[NON_TRUSTED_FW_CONTENT_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&nt_fw_cert_uuid_spec,
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check_fip
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},
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#endif /* TRUSTED_BOARD_BOOT */
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[GPT_IMAGE_ID] = {
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&emmc_dev_handle,
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(uintptr_t)&emmc_gpt_spec,
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check_emmc
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},
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};
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static int check_emmc(const uintptr_t spec)
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{
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int result;
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uintptr_t local_handle;
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result = io_dev_init(emmc_dev_handle, (uintptr_t)NULL);
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if (result == 0) {
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result = io_open(emmc_dev_handle, spec, &local_handle);
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if (result == 0)
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io_close(local_handle);
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}
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return result;
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}
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static int check_fip(const uintptr_t spec)
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{
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int result;
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uintptr_t local_image_handle;
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/* See if a Firmware Image Package is available */
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result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID);
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if (result == 0) {
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result = io_open(fip_dev_handle, spec, &local_image_handle);
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if (result == 0) {
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VERBOSE("Using FIP\n");
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io_close(local_image_handle);
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}
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}
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return result;
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}
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void hikey_io_setup(void)
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{
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int result;
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result = register_io_dev_block(&emmc_dev_con);
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assert(result == 0);
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result = register_io_dev_fip(&fip_dev_con);
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assert(result == 0);
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result = io_dev_open(emmc_dev_con, (uintptr_t)&emmc_dev_spec,
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&emmc_dev_handle);
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assert(result == 0);
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result = io_dev_open(fip_dev_con, (uintptr_t)NULL, &fip_dev_handle);
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assert(result == 0);
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/* Ignore improbable errors in release builds */
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(void)result;
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}
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int hikey_set_fip_addr(unsigned int image_id, const char *name)
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{
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const partition_entry_t *entry;
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if (emmc_fip_spec.length == 0) {
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partition_init(GPT_IMAGE_ID);
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entry = get_partition_entry(name);
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if (entry == NULL) {
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ERROR("Could NOT find the %s partition!\n", name);
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return -ENOENT;
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}
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emmc_fip_spec.offset = entry->start;
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emmc_fip_spec.length = entry->length;
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}
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return 0;
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}
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/* Return an IO device handle and specification which can be used to access
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* an image. Use this to enforce platform load policy
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*/
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int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
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uintptr_t *image_spec)
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{
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int result;
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const struct plat_io_policy *policy;
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assert(image_id < ARRAY_SIZE(policies));
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policy = &policies[image_id];
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result = policy->check(policy->image_spec);
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assert(result == 0);
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*image_spec = policy->image_spec;
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*dev_handle = *(policy->dev_handle);
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return result;
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}
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