mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
eb217200ef
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>
34 lines
905 B
C
34 lines
905 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2016 NXP Semiconductor, Inc.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/psci.h>
|
|
#include <asm/system.h>
|
|
#include <asm/armv8/sec_firmware.h>
|
|
#include <linux/libfdt.h>
|
|
|
|
__weak int psci_update_dt(void *fdt)
|
|
{
|
|
/*
|
|
* If the PSCI in SEC Firmware didn't work, avoid to update the
|
|
* device node of PSCI. But still return 0 instead of an error
|
|
* number to support detecting PSCI dynamically and then switching
|
|
* the SMP boot method between PSCI and spin-table.
|
|
*/
|
|
if (CONFIG_IS_ENABLED(SEC_FIRMWARE_ARMV8_PSCI) &&
|
|
sec_firmware_support_psci_version() == PSCI_INVALID_VER)
|
|
return 0;
|
|
|
|
fdt_psci(fdt);
|
|
|
|
#if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE)
|
|
/* secure code lives in RAM, keep it alive */
|
|
fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
|
|
__secure_end - __secure_start);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|