/*
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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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* SPDX-License-Identifier: GPL-2.0+
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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_OS_BOOT
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void handoff_setup(void)
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{
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struct xfsbl_atf_handoff_params *atfhandoffparams;
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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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atfhandoffparams->num_entries = 1;
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atfhandoffparams->partition[0].entry_point = CONFIG_SYS_TEXT_BASE;
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atfhandoffparams->partition[0].flags = FSBL_FLAGS_EL2 <<
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FSBL_FLAGS_EL_SHIFT;
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writel(CONFIG_SPL_TEXT_BASE, &pmu_base->gen_storage6);
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}
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#endif
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