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Date: Thu, 28 Feb 2019 17:59:34 +0300 From: Dmitry Osipenko <digetx@...il.com> To: Russell King <linux@...linux.org.uk>, Thierry Reding <thierry.reding@...il.com>, Jonathan Hunter <jonathanh@...dia.com>, Robert Yang <decatf@...il.com>, Michał Mirosław <mirq-linux@...e.qmqm.pl> Cc: linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v8 4/7] 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@...il.com> Tested-by: Michał Mirosław <mirq-linux@...e.qmqm.pl> Signed-off-by: Dmitry Osipenko <digetx@...il.com> --- arch/arm/mach-tegra/tegra.c | 2 ++ 1 file changed, 2 insertions(+) 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) -- 2.20.1
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