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ARM: tegra: Set up L2 cache using Trusted Foundations firmware 

On Tegra30 L2 cache should be initialized using firmware call if CPU
is running in insecure mode. Set up the required outer-cache write_sec()
callback early during boot using the firmware API, it is always a NO-OP
on T114+ and is NO-OP on T20/30 if Trusted Foundations firmware node
isn't present in device-tree.

Tested-by: Robert Yang <decatf@gmail.com>
Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko 2019-03-18 01:52:07 +03:00 committed by Thierry Reding
parent ebc7c1a265
commit 6ad27b8350
1 changed files with 2 additions and 0 deletions
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2
arch/arm/mach-tegra/tegra.c
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@ -38,6 +38,7 @@
#include <soc/tegra/fuse.h>
#include <soc/tegra/pmc.h>
#include <asm/firmware.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
@ -74,6 +75,7 @@ static void __init tegra_init_early(void)
{
of_register_trusted_foundations();
tegra_cpu_reset_handler_init();
call_firmware_op(l2x0_init);
}
static void __init tegra_dt_init_irq(void)