From nobody Sun Dec 28 22:52:55 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26ECFC4167B for ; Tue, 5 Dec 2023 10:13:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344949AbjLEKMy (ORCPT ); Tue, 5 Dec 2023 05:12:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344948AbjLEJza (ORCPT ); Tue, 5 Dec 2023 04:55:30 -0500 Received: from sakura.ysato.name (ik1-413-38519.vs.sakura.ne.jp [153.127.30.23]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 652FB182; Tue, 5 Dec 2023 01:55:36 -0800 (PST) Received: from SIOS1075.ysato.name (ZM005235.ppp.dion.ne.jp [222.8.5.235]) by sakura.ysato.name (Postfix) with ESMTPSA id CF91B1C01B1; Tue, 5 Dec 2023 18:46:02 +0900 (JST) From: Yoshinori Sato To: linux-sh@vger.kernel.org Cc: Yoshinori Sato , Damien Le Moal , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Michael Turquette , Stephen Boyd , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Thomas Gleixner , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Bjorn Helgaas , Greg Kroah-Hartman , Jiri Slaby , Magnus Damm , Daniel Lezcano , Rich Felker , John Paul Adrian Glaubitz , Lee Jones , Helge Deller , Heiko Stuebner , Jernej Skrabec , Chris Morgan , Linus Walleij , Randy Dunlap , Arnd Bergmann , Hyeonggon Yoo <42.hyeyoo@gmail.com>, David Rientjes , Vlastimil Babka , Baoquan He , Andrew Morton , Guenter Roeck , Stephen Rothwell , Guo Ren , Javier Martinez Canillas , Azeem Shaikh , Palmer Dabbelt , Bin Meng , Max Filippov , Tom Rix , Herve Codina , Jacky Huang , Lukas Bulwahn , Jonathan Corbet , Biju Das , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Sam Ravnborg , Michael Karcher , 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 v5 01/37] sh: passing FDT address to kernel startup. Date: Tue, 5 Dec 2023 18:45:20 +0900 Message-Id: X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" 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 --- 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/he= ad_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 =09 .align 2 bss_start_addr: --=20 2.39.2