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https://github.com/AsahiLinux/u-boot
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653736c243
There is need to pass entry about secure OS when bl32_entry is defined. Currently only 64bit support is added but /fit-images node have been extended to also record if this is 32bit or 64bit secure OS. When this is tested the code will be update to support this configuration too. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2016 - 2017 Xilinx, Inc.
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*
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* Michal Simek <michal.simek@xilinx.com>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/sys_proto.h>
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/*
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* atfhandoffparams
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* Parameter bitfield encoding
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* -----------------------------------------------------------------------------
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* Exec State 0 0 -> Aarch64, 1-> Aarch32
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* endianness 1 0 -> LE, 1 -> BE
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* secure (TZ) 2 0 -> Non secure, 1 -> secure
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* EL 3:4 00 -> EL0, 01 -> EL1, 10 -> EL2, 11 -> EL3
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* CPU# 5:6 00 -> A53_0, 01 -> A53_1, 10 -> A53_2, 11 -> A53_3
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*/
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#define FSBL_FLAGS_ESTATE_SHIFT 0
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#define FSBL_FLAGS_ESTATE_MASK (1 << FSBL_FLAGS_ESTATE_SHIFT)
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#define FSBL_FLAGS_ESTATE_A64 0
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#define FSBL_FLAGS_ESTATE_A32 1
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#define FSBL_FLAGS_ENDIAN_SHIFT 1
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#define FSBL_FLAGS_ENDIAN_MASK (1 << FSBL_FLAGS_ENDIAN_SHIFT)
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#define FSBL_FLAGS_ENDIAN_LE 0
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#define FSBL_FLAGS_ENDIAN_BE 1
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#define FSBL_FLAGS_TZ_SHIFT 2
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#define FSBL_FLAGS_TZ_MASK (1 << FSBL_FLAGS_TZ_SHIFT)
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#define FSBL_FLAGS_NON_SECURE 0
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#define FSBL_FLAGS_SECURE 1
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#define FSBL_FLAGS_EL_SHIFT 3
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#define FSBL_FLAGS_EL_MASK (3 << FSBL_FLAGS_EL_SHIFT)
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#define FSBL_FLAGS_EL0 0
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#define FSBL_FLAGS_EL1 1
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#define FSBL_FLAGS_EL2 2
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#define FSBL_FLAGS_EL3 3
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#define FSBL_FLAGS_CPU_SHIFT 5
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#define FSBL_FLAGS_CPU_MASK (3 << FSBL_FLAGS_CPU_SHIFT)
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#define FSBL_FLAGS_A53_0 0
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#define FSBL_FLAGS_A53_1 1
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#define FSBL_FLAGS_A53_2 2
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#define FSBL_FLAGS_A53_3 3
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#define FSBL_MAX_PARTITIONS 8
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/* Structure corresponding to each partition entry */
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struct xfsbl_partition {
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uint64_t entry_point;
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uint64_t flags;
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};
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/* Structure for handoff parameters to ARM Trusted Firmware (ATF) */
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struct xfsbl_atf_handoff_params {
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uint8_t magic[4];
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uint32_t num_entries;
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struct xfsbl_partition partition[FSBL_MAX_PARTITIONS];
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};
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#ifdef CONFIG_SPL_ATF
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struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
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uintptr_t bl33_entry,
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uintptr_t fdt_addr)
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{
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struct xfsbl_atf_handoff_params *atfhandoffparams;
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u32 index = 0;
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atfhandoffparams = (void *)CONFIG_SPL_TEXT_BASE;
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atfhandoffparams->magic[0] = 'X';
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atfhandoffparams->magic[1] = 'L';
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atfhandoffparams->magic[2] = 'N';
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atfhandoffparams->magic[3] = 'X';
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if (bl32_entry) {
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atfhandoffparams->partition[index].entry_point = bl32_entry;
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atfhandoffparams->partition[index].flags = FSBL_FLAGS_EL1 << FSBL_FLAGS_EL_SHIFT |
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FSBL_FLAGS_SECURE << FSBL_FLAGS_TZ_SHIFT;
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index++;
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}
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if (bl33_entry) {
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atfhandoffparams->partition[index].entry_point = bl33_entry;
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atfhandoffparams->partition[index].flags = FSBL_FLAGS_EL2 <<
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FSBL_FLAGS_EL_SHIFT;
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index++;
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}
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atfhandoffparams->num_entries = index;
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writel(CONFIG_SPL_TEXT_BASE, &pmu_base->gen_storage6);
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return NULL;
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}
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#endif
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