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psci_update_dt() is also required if CONFIG_ARMV8_PSCI is set, that is, if u-boot is the PSCI provider. Guard the check which is intended to call into the PSCI implementation in the secure firmware, by the proper macro SEC_FIRMWARE_ARMV8_PSCI. Mark the function as weak because - unfortunately - there is already a stub of the same function in arch/arm/mach-rmobile/psci-r8a779a0.c which does not the same as the common one. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
35 lines
905 B
C
35 lines
905 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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#include <linux/libfdt.h>
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__weak 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 (CONFIG_IS_ENABLED(SEC_FIRMWARE_ARMV8_PSCI) &&
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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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