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Groups > linux.kernel > #1436001

[PATCH v5 06/22] sh: FDT address save before bank change

From Yoshinori Sato <ysato@users.sourceforge.jp>
Newsgroups linux.kernel
Subject [PATCH v5 06/22] sh: FDT address save before bank change
Date 2016-07-03 19:00 +0200
Message-ID <rQSUp-2BS-19@gated-at.bofh.it> (permalink)
References <rQSKJ-2yo-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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SH3/4 have register bank of R0-R7.
Preset FDT address assigned bank depend on boot loader.
Before setting a bank because we don't depend on a boot loader, it's evacuated.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/sh/kernel/head_32.S | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/sh/kernel/head_32.S b/arch/sh/kernel/head_32.S
index 974bc15..ef44fe8 100644
--- a/arch/sh/kernel/head_32.S
+++ b/arch/sh/kernel/head_32.S
@@ -58,6 +58,9 @@ ENTRY(empty_zero_page)
  *
  */
 ENTRY(_stext)
+#ifdef CONFIG_OF
+	mov	r4, r12		! Store device tree blob pointer
+#endif
 	!			Initialize Status Register
 	mov.l	1f, r0		! MD=1, RB=0, BL=0, IMASK=0xF
 	ldc	r0, sr
@@ -67,10 +70,6 @@ ENTRY(_stext)
 	ldc	r0, r6_bank
 #endif
 
-#ifdef CONFIG_OF
-	mov	r4, r12		! Store device tree blob pointer in r12
-#endif
-	
 	/*
 	 * Prefetch if possible to reduce cache miss penalty.
 	 *
-- 
2.7.0

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Thread

[PATCH v5 00/22] sh: LANDISK and R2Dplus convert to device tree Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
  [PATCH v5 13/22] sh: irqchip: SH7751 IRQCHIP Driver Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
  [PATCH v5 11/22] sh: SH7750/51 CPG Driver Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
  [PATCH v5 04/22] sh: Use P1SEGADDR Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
    Re: [PATCH v5 04/22] sh: Use P1SEGADDR Rich Felker <dalias@libc.org> - 2016-07-04 03:50 +0200
      Re: [PATCH v5 04/22] sh: Use P1SEGADDR Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-06 16:20 +0200
        Re: [PATCH v5 04/22] sh: Use P1SEGADDR Rich Felker <dalias@libc.org> - 2016-07-06 17:00 +0200
  [PATCH v6 12/22] sh: Add PCI host bridge driver for SH7751 Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
    Re: [PATCH v6 12/22] sh: Add PCI host bridge driver for SH7751 Rob Herring <robh@kernel.org> - 2016-07-05 18:00 +0200
      Re: [PATCH v6 12/22] sh: Add PCI host bridge driver for SH7751 Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-06 18:20 +0200
  [PATCH v5 10/22] sh: Add board specific initialize of of-generic Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
    Re: [PATCH v5 10/22] sh: Add board specific initialize of of-generic Rich Felker <dalias@libc.org> - 2016-07-04 03:40 +0200
      Re: [PATCH v5 10/22] sh: Add board specific initialize of of-generic Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-06 16:30 +0200
  [PATCH v5 08/22] sh: Disable board specific code on device tree mode Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
  [PATCH v5 15/22] sh: Move common PCI stuff to arch/sh/kernel Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
    Re: [PATCH v5 15/22] sh: Move common PCI stuff to arch/sh/kernel Rich Felker <dalias@libc.org> - 2016-07-04 04:00 +0200
      Re: [PATCH v5 15/22] sh: Move common PCI stuff to arch/sh/kernel Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-06 18:20 +0200
  [PATCH v5 09/22] sh: Use GENERIC_IOMAP on device tree mode Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 18:50 +0200
  [PATCH v5 05/22] sh: command line passing chosen/bootargs in devicetree Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
  [PATCH v5 03/22] sh: set preset_lpj Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
  [PATCH v5 17/22] pci: PCI_HOST_GENERIC enable for SH Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
  [PATCH v5 01/22] sh: Add sh-specific early_init_dt_reserve_memory_arch Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
    Re: [PATCH v5 01/22] sh: Add sh-specific  early_init_dt_reserve_memory_arch Rich Felker <dalias@libc.org> - 2016-07-04 04:10 +0200
      Re: [PATCH v5 01/22] sh: Add sh-specific early_init_dt_reserve_memory_arch Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-06 16:00 +0200
        Re: [PATCH v5 01/22] sh: Add sh-specific  early_init_dt_reserve_memory_arch Rich Felker <dalias@libc.org> - 2016-07-06 17:00 +0200
  [PATCH v5 14/22] sh: SH7751 core dtsi Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
  [PATCH v5 06/22] sh: FDT address save before bank change Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
  [PATCH v5 20/22] sh: IO-DATA HDL-U (a.k.a landisk) DeviceTree Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
    Re: [PATCH v5 20/22] sh: IO-DATA HDL-U (a.k.a landisk) DeviceTree Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-07-03 21:10 +0200
      Re: [PATCH v5 20/22] sh: IO-DATA HDL-U (a.k.a landisk) DeviceTree Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-06 18:20 +0200
  [PATCH v5 22/22] sh: Renesas RTS7751R2Dplus (a,k.a R2Dplus) DeviceTree Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200
  [PATCH v5 18/22] sh: Add separate DTB build rule Yoshinori Sato <ysato@users.sourceforge.jp> - 2016-07-03 19:00 +0200

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