f8fc109960
repo: https://github.com/u-boot/u-boot commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91 Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
34 lines
877 B
C
34 lines
877 B
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 <asm/cache.h>
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#include <asm/psci.h>
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#include <asm/system.h>
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#include <asm/armv8/sec_firmware.h>
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#if CONFIG_IS_ENABLED(ARMV8_SEC_FIRMWARE_SUPPORT)
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int psci_update_dt(void *fdt)
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{
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/*
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* If the PSCI in SEC Firmware didn't work, avoid to update the
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* device node of PSCI. But still return 0 instead of an error
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* number to support detecting PSCI dynamically and then switching
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* the SMP boot method between PSCI and spin-table.
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*/
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if (sec_firmware_support_psci_version() == PSCI_INVALID_VER)
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return 0;
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fdt_psci(fdt);
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#if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE)
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/* secure code lives in RAM, keep it alive */
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fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
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__secure_end - __secure_start);
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#endif
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return 0;
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}
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#endif
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