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refactor(imx): console runtime switch on bl31 exit

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Flush the FIFO before switching to runtime. This is so that there are
no lingering chars in the FIFO when we move to the runtime console.

TF-A plans to refactor the console_Switch_state(CONSOLE_FLAG_RUNTIME)
and console_flush() calls and make them the last calls in bl31_main()
(before BL31 exits). Until then they are being left as the last calls
in bl31_plat_runtime_setup() for testing before refactoring.

This patch affects the Freescale/NXP SoCs imx93, imx8qm and imx8qx.

Change-Id: Iece74579e1d15eeeb8279db0c53d74bce45545bd
Signed-off-by: Salman Nabi <salman.nabi@arm.com>
This commit is contained in:
Salman Nabi 2024-02-19 14:51:12 +00:00
parent 46163ddddb
commit d3c643c2dc
3 changed files with 7 additions and 4 deletions
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5
plat/imx/imx8qm/imx8qm_bl31_setup.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2015-2024, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -411,5 +411,6 @@ unsigned int plat_get_syscnt_freq2(void)
void bl31_plat_runtime_setup(void)
{
return;
console_flush();
console_switch_state(CONSOLE_FLAG_RUNTIME);
}

5
plat/imx/imx8qx/imx8qx_bl31_setup.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2015-2024, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -389,5 +389,6 @@ unsigned int plat_get_syscnt_freq2(void)
void bl31_plat_runtime_setup(void)
{
return;
console_flush();
console_switch_state(CONSOLE_FLAG_RUNTIME);
}

1
plat/imx/imx93/imx93_bl31_setup.c
View file

@ -138,6 +138,7 @@ void bl31_platform_setup(void)
void bl31_plat_runtime_setup(void)
{
console_flush();
console_switch_state(CONSOLE_FLAG_RUNTIME);
}