From: Yoshinori Sato <ysato@users.sourceforge.jp>
To: linux-sh@vger.kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Subject: [PATCH v4 01/37] sh: passing FDT address to kernel startup.
Date: Tue, 14 Nov 2023 16:59:52 +0900 [thread overview]
Message-ID: <3b24a5ce5ecd00f8d48654ee2eff8340e2827169.1699856600.git.ysato@users.sourceforge.jp> (raw)
In-Reply-To: <cover.1699856600.git.ysato@users.sourceforge.jp>
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 <ysato@users.sourceforge.jp>
---
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..b5ff297145b6 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:
--
2.39.2
next prev parent reply other threads:[~2023-11-14 8:00 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-14 7:59 [PATCH v4 00/37] Device Tree support for SH7751 based board Yoshinori Sato
2023-11-14 7:59 ` Yoshinori Sato [this message]
2023-11-14 8:44 ` [PATCH v4 01/37] sh: passing FDT address to kernel startup Sergei Shtylyov
2023-11-14 7:59 ` [PATCH v4 02/37] sh: Kconfig unified OF supported targets Yoshinori Sato
2023-11-14 12:46 ` Arnd Bergmann
2023-11-14 7:59 ` [PATCH v4 03/37] sh: Enable OF support for build and configuration Yoshinori Sato
2023-11-14 7:59 ` [PATCH v4 04/37] dt-bindings: interrupt-controller: Add header for Renesas SH3/4 INTC Yoshinori Sato
2023-11-14 21:25 ` Krzysztof Kozlowski
2023-11-14 7:59 ` [PATCH v4 05/37] sh: GENERIC_IRQ_CHIP support for CONFIG_OF=y Yoshinori Sato
2023-11-14 7:59 ` [PATCH v4 06/37] sh: kernel/setup Update DT support Yoshinori Sato
2023-11-14 7:59 ` [PATCH v4 07/37] sh: Fix COMMON_CLK support in CONFIG_OF=y Yoshinori Sato
2023-11-14 7:59 ` [PATCH v4 08/37] clocksource: sh_tmu: CLOCKSOURCE support Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 09/37] dt-bindings: timer: renesas,tmu: add renesas,tmu-sh7750 Yoshinori Sato
2023-11-14 21:26 ` Krzysztof Kozlowski
2023-11-15 8:17 ` Geert Uytterhoeven
2023-11-15 21:05 ` Krzysztof Kozlowski
2023-11-14 8:00 ` [PATCH v4 10/37] sh: Common PCI framework support Yoshinori Sato
2023-11-14 13:03 ` Arnd Bergmann
2023-11-14 8:00 ` [PATCH v4 11/37] sh: Add old PCI drivers compatible stub Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 12/37] pci: pci-sh7751: Add SH7751 PCI driver Yoshinori Sato
2023-11-20 18:16 ` Bjorn Helgaas
2023-11-14 8:00 ` [PATCH v4 13/37] dt-bindings: pci: pci-sh7751: Add SH7751 PCI Yoshinori Sato
2023-11-14 21:27 ` Krzysztof Kozlowski
2023-11-14 8:00 ` [PATCH v4 14/37] dt-bindings: clock: sh7750-cpg: Add renesas,sh7750-cpg header Yoshinori Sato
2023-11-14 21:29 ` Krzysztof Kozlowski
2023-11-14 8:00 ` [PATCH v4 15/37] clk: Compatible with narrow registers Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 16/37] clk: renesas: Add SH7750/7751 CPG Driver Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 17/37] irqchip: Add SH7751 INTC driver Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 18/37] dt-bindings: interrupt-controller: renesas,sh7751-intc: Add json-schema Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 19/37] irqchip: SH7751 IRL external encoder with enable gate Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 20/37] dt-bindings: interrupt-controller: renesas,sh7751-irl-ext: Add json-schema Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 21/37] serial: sh-sci: fix SH4 OF support Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 22/37] dt-bindings: serial: renesas,scif: Add scif-sh7751 Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 23/37] dt-bindings: display: smi,sm501: SMI SM501 binding json-schema Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 24/37] mfd: sm501: Convert platform_data to OF property Yoshinori Sato
2023-11-23 13:59 ` Lee Jones
2023-11-14 8:00 ` [PATCH v4 25/37] dt-binding: sh: cpus: Add SH CPUs json-schema Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 26/37] dt-bindings: vendor-prefix: Add new vendor iodata and smi Yoshinori Sato
2023-11-14 16:35 ` Geert Uytterhoeven
2023-11-14 8:00 ` [PATCH v4 27/37] dt-bindings: ata: ata-generic: Add new targets Yoshinori Sato
2023-11-14 18:19 ` Rob Herring
2023-11-14 8:00 ` [PATCH v4 28/37] dt-bindings: soc: renesas: sh: Add SH7751 based target Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 29/37] sh: SH7751R SoC Internal peripheral definition dtsi Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 30/37] sh: add RTS7751R2D Plus DTS Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 31/37] sh: Add IO DATA LANDISK dts Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 32/37] sh: Add IO DATA USL-5P dts Yoshinori Sato
2023-11-14 9:02 ` Sergei Shtylyov
2023-11-14 9:04 ` Sergei Shtylyov
2023-11-14 8:00 ` [PATCH v4 33/37] sh: j2_mimas_v2.dts update Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 34/37] sh: Add dtbs target support Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 35/37] sh: RTS7751R2D Plus OF defconfig Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 36/37] sh: LANDISK " Yoshinori Sato
2023-11-14 8:00 ` [PATCH v4 37/37] sh: j2_defconfig: update Yoshinori Sato
2023-11-14 8:58 ` [PATCH v4 00/37] Device Tree support for SH7751 based board John Paul Adrian Glaubitz
2023-11-14 18:39 ` John Paul Adrian Glaubitz
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