From: Dmitry Osipenko <digetx@gmail.com>
To: "Russell King" <linux@armlinux.org.uk>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Jonathan Hunter" <jonathanh@nvidia.com>,
"Robert Yang" <decatf@gmail.com>,
"Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 4/8] ARM: tegra: Set up L2 cache using Trusted Foundations firmware
Date: Mon, 18 Feb 2019 03:17:22 +0300 [thread overview]
Message-ID: <20190218001726.16785-5-digetx@gmail.com> (raw)
In-Reply-To: <20190218001726.16785-1-digetx@gmail.com>
On Tegra30 L2 cache should be initialized using firmware call if CPU is
running in insecure mode. Initialize L2 cache and set up the outer-cache
callbacks early during boot using the firmware API.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
arch/arm/mach-tegra/tegra.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index f9587be48235..67d8ae60ac67 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>
@@ -70,9 +71,18 @@ u32 tegra_uart_config[3] = {
0,
};
+static void __init tegra_trusted_foundations_l2x0_cache_init(void)
+{
+ if (IS_ENABLED(CONFIG_CACHE_L2X0) &&
+ IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) &&
+ of_machine_is_compatible("nvidia,tegra30"))
+ call_firmware_op(l2x0_init);
+}
+
static void __init tegra_init_early(void)
{
of_register_trusted_foundations();
+ tegra_trusted_foundations_l2x0_cache_init();
tegra_cpu_reset_handler_init();
}
--
2.20.1
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next prev parent reply other threads:[~2019-02-18 0:20 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-18 0:17 [PATCH v4 0/8] Support Trusted Foundations firmware on Tegra30 Dmitry Osipenko
2019-02-18 0:17 ` [PATCH v4 1/8] ARM: trusted_foundations: Implement L2 cache initialization callback Dmitry Osipenko
2019-02-18 0:17 ` [PATCH v4 2/8] ARM: trusted_foundations: Make prepare_idle call to take mode argument Dmitry Osipenko
2019-02-18 0:17 ` [PATCH v4 3/8] ARM: trusted_foundations: Provide information about whether firmware is registered Dmitry Osipenko
2019-02-18 0:17 ` Dmitry Osipenko [this message]
2019-02-18 0:17 ` [PATCH v4 5/8] ARM: tegra: Don't apply CPU erratas in insecure mode Dmitry Osipenko
2019-02-18 0:17 ` [PATCH v4 6/8] ARM: tegra: Always boot CPU in ARM-mode Dmitry Osipenko
2019-02-18 0:17 ` [PATCH v4 7/8] ARM: tegra: Support L2 cache maintenance done via firmware Dmitry Osipenko
2019-02-18 0:17 ` [PATCH v4 8/8] ARM: tegra: Add firmware calls required for suspend-resume Dmitry Osipenko
2019-02-18 8:51 ` [PATCH v4 0/8] Support Trusted Foundations firmware on Tegra30 Thierry Reding
2019-02-20 13:30 ` Dmitry Osipenko
2019-02-20 16:36 ` Michał Mirosław
2019-02-20 17:01 ` Dmitry Osipenko
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