From patchwork Wed May 29 08:00:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshinori Sato X-Patchwork-Id: 13678163 Received: from sakura.ysato.name (ik1-413-38519.vs.sakura.ne.jp [153.127.30.23]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1978317BB37; Wed, 29 May 2024 08:07:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=153.127.30.23 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716970054; cv=none; b=rhuczeuyS4REpVT0839DHmiiQYLw7C+Q9XFJ2iLVIs7diH+8uexWwYifTpEF5dqrEYjUOVLvMXUYul6pn8Pi1Ern3dzrJpd3F1quYRNLa3BwuJK0sRHFkw301MoxK0LJ88Wiocw6QnZCNG6VyW4qEQU7FsqQFwUlaYrRAKyo6Os= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716970054; c=relaxed/simple; bh=X5xhUmYdUi/YHxJqfjY+z9LAkIgLaCslllhJ8YzjKP4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Vg/D+iTrrbCFPb+dM55r1dySD5/1uG3G/8hwwVZieHgLyIDC+Jl8zNIOSnHKABjNyDAauI5OiPGDS2j4PGu6S4AL8SqJo0SQ5leYqL5W+IgYPlxiXigYMcc4Ci0z5bvE/RXCWmsOgfiYy4kb6WVDTGIzX82ZbmLqCwvK6rhPFJo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=users.sourceforge.jp; spf=fail smtp.mailfrom=users.sourceforge.jp; arc=none smtp.client-ip=153.127.30.23 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=users.sourceforge.jp Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=users.sourceforge.jp Received: from SIOS1075.ysato.name (al128006.dynamic.ppp.asahi-net.or.jp [111.234.128.6]) by sakura.ysato.name (Postfix) with ESMTPSA id AFD791C00A2; Wed, 29 May 2024 17:01:29 +0900 (JST) From: Yoshinori Sato To: linux-sh@vger.kernel.org Cc: Yoshinori Sato , Damien Le Moal , Niklas Cassel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Michael Turquette , Stephen Boyd , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Thomas Gleixner , Bjorn Helgaas , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Greg Kroah-Hartman , Jiri Slaby , Magnus Damm , Daniel Lezcano , Rich Felker , John Paul Adrian Glaubitz , Lee Jones , Helge Deller , Heiko Stuebner , Neil Armstrong , Chris Morgan , Sebastian Reichel , Linus Walleij , Arnd Bergmann , Masahiro Yamada , Baoquan He , Andrew Morton , Guenter Roeck , Kefeng Wang , Stephen Rothwell , Azeem Shaikh , Guo Ren , Max Filippov , Jernej Skrabec , Herve Codina , Andy Shevchenko , Anup Patel , Jacky Huang , Hugo Villeneuve , Jonathan Corbet , Wolfram Sang , =?utf-8?q?Uwe_Kleine-K?= =?utf-8?q?=C3=B6nig?= , Christophe JAILLET , Sam Ravnborg , Javier Martinez Canillas , Sergey Shtylyov , Laurent Pinchart , linux-ide@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-pci@vger.kernel.org, linux-serial@vger.kernel.org, linux-fbdev@vger.kernel.org Subject: [DO NOT MERGE v8 01/36] sh: passing FDT address to kernel startup. Date: Wed, 29 May 2024 17:00:47 +0900 Message-Id: X-Mailer: git-send-email 2.39.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-sh@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 R4 is caller saved in SH ABI. Save it so it doesn't get corrupted until it's needed for initialization. Signed-off-by: Yoshinori Sato Reviewed-by: Geert Uytterhoeven --- arch/sh/boot/compressed/head_32.S | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/sh/boot/compressed/head_32.S b/arch/sh/boot/compressed/head_32.S index 7bb168133dbb..6be59851122e 100644 --- a/arch/sh/boot/compressed/head_32.S +++ b/arch/sh/boot/compressed/head_32.S @@ -15,7 +15,8 @@ startup: /* Load initial status register */ mov.l init_sr, r1 ldc r1, sr - + /* Save FDT address */ + mov r4, r13 /* Move myself to proper location if necessary */ mova 1f, r0 mov.l 1f, r2 @@ -84,7 +85,7 @@ l1: /* Jump to the start of the decompressed kernel */ mov.l kernel_start_addr, r0 jmp @r0 - nop + mov r13, r4 .align 2 bss_start_addr: