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authorDmitry Osipenko <digetx@gmail.com>2019-03-18 01:52:07 +0300
committerThierry Reding <treding@nvidia.com>2019-04-09 17:36:23 +0300
commit6ad27b8350401a3c79899b431097afc361b46374 (patch)
treef7d73f21148ffd0c70d130172469c46af7e521ce /arch/arm/mach-tegra
parentebc7c1a26578683a4d12ab3434a92c225a97e240 (diff)
downloadlinux-6ad27b8350401a3c79899b431097afc361b46374.tar.xz
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>
Diffstat (limited to 'arch/arm/mach-tegra')
-rw-r--r--arch/arm/mach-tegra/tegra.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index f9587be48235..1e89cfefbf68 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -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)