Commit 6ad27b83 authored Mar 18, 2019 by Dmitry Osipenko Committed by Thierry Reding Apr 09, 2019

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>

parent ebc7c1a2

arch/arm/mach-tegra/tegra.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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)

Admin message