Djam/arm-trusted-firmware
1
0
Fork 0
mirror of https://github.com/ARM-software/arm-trusted-firmware.git synced 2025-04-17 01:54:22 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fix(msm8916): flush dcache after writing msm8916_entry_point

Browse source 
msm8916_entry_point is read with caches off (and even from two
different physical addresses when read through the "boot remapper"),
so it should be flushed to RAM after writing it.

Change-Id: I5c8193954bb28043b0a46fb2038f629bd8796c74
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
This commit is contained in:
Stephan Gerhold 2022-09-17 18:21:20 +02:00 • committed by Manish V Badarkhe
parent 3fb7e40a21
commit 01ba69cd9b
1 changed files with 9 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
plat/qti/msm8916/msm8916_pm.c
View file

@ -1,10 +1,11 @@
/*
* Copyright (c) 2021, Stephan Gerhold <stephan@gerhold.net>
* Copyright (c) 2021-2022, Stephan Gerhold <stephan@gerhold.net>
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <arch_helpers.h>
#include <common/debug.h>
#include <drivers/arm/gicv2.h>
#include <drivers/delay_timer.h>
@ -53,7 +54,14 @@ extern uintptr_t msm8916_entry_point;
int plat_setup_psci_ops(uintptr_t sec_entrypoint,
const plat_psci_ops_t **psci_ops)
{
/*
* The entry point is read with caches off (and even from two different
* physical addresses when read through the "boot remapper"), so make
* sure it is flushed to memory.
*/
msm8916_entry_point = sec_entrypoint;
flush_dcache_range((uintptr_t)&msm8916_entry_point, sizeof(uintptr_t));
*psci_ops = &msm8916_psci_ops;
return 0;
}