[v4,6/8] ARM: tegra: Always boot CPU in ARM-mode

Message ID	20190218001726.16785-7-digetx@gmail.com
State	Superseded
Headers	show Return-Path: <linux-tegra-owner@vger.kernel.org> 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>, =?utf-8?b?TWljaGHFgiBNaXJvc8WCYXc=?= <mirq-linux@rere.qmqm.pl> Cc: linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 6/8] ARM: tegra: Always boot CPU in ARM-mode Date: Mon, 18 Feb 2019 03:17:24 +0300 Message-Id: <20190218001726.16785-7-digetx@gmail.com> In-Reply-To: <20190218001726.16785-1-digetx@gmail.com> References: <20190218001726.16785-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk
Series	Support Trusted Foundations firmware on Tegra30 \| expand [v4,0/8] Support Trusted Foundations firmware on Tegra30 [v4,1/8] ARM: trusted_foundations: Implement L2 cache initialization callback [v4,2/8] ARM: trusted_foundations: Make prepare_idle call to take mode argument [v4,3/8] ARM: trusted_foundations: Provide information about whether firmware is registered [v4,4/8] ARM: tegra: Set up L2 cache using Trusted Foundations firmware [v4,5/8] ARM: tegra: Don't apply CPU erratas in insecure mode [v4,6/8] ARM: tegra: Always boot CPU in ARM-mode [v4,7/8] ARM: tegra: Support L2 cache maintenance done via firmware [v4,8/8] ARM: tegra: Add firmware calls required for suspend-resume

Message ID

20190218001726.16785-7-digetx@gmail.com

State

Superseded

Headers

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>, =?utf-8?b?TWljaGHFgiBNaXJvc8WCYXc=?=
	<mirq-linux@rere.qmqm.pl>
Cc: linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v4 6/8] ARM: tegra: Always boot CPU in ARM-mode
Date: Mon, 18 Feb 2019 03:17:24 +0300
Message-Id: <20190218001726.16785-7-digetx@gmail.com>
In-Reply-To: <20190218001726.16785-1-digetx@gmail.com>
References: <20190218001726.16785-1-digetx@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-tegra-owner@vger.kernel.org
Precedence: bulk

Series

Support Trusted Foundations firmware on Tegra30 | expand

Commit Message

Dmitry Osipenko Feb. 18, 2019, 12:17 a.m. UTC

CPU always jumps into reset handler in ARM-mode from the Trusted
Foundations firmware, hence let's make CPU to always jump into kernel
in ARM-mode regardless of the firmware presence. This is required to
make Thumb-2 kernel working with the Trusted Foundations firmware on
Tegra30.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/mach-tegra/reset-handler.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index a9f13230da2f..c827b185d281 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -112,7 +112,7 @@  ENTRY(__tegra_cpu_reset_handler_start)
  * NOTE: This code is copied to IRAM. All code and data accesses
  *       must be position-independent.
  */
-
+	.arm
 	.align L1_CACHE_SHIFT
 ENTRY(__tegra_cpu_reset_handler)

[v4,6/8] ARM: tegra: Always boot CPU in ARM-mode

Commit Message

Patch