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From: Magnus Damm <magnus.damm@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/02] ARM: shmobile: Let romImage rely on default ATAGS
Date: Wed, 05 Jun 2013 07:55:22 +0000	[thread overview]
Message-ID: <20130605075522.17653.20769.sendpatchset@w520> (raw)
In-Reply-To: <20130605075514.17653.77135.sendpatchset@w520>

From: Magnus Damm <damm@opensource.se>

Remove the ATAGS data structure from head-shmobile.S
since a default ATAGS is already provided by the code
in arch/arm/kernel/atags_parser.c. Passing a NULL as
ATAGS is valid. For actual hardware specific setup
the fixup callback in the board code may be used.

Signed-off-by: Magnus Damm <damm@opensource.se>
---

 arch/arm/boot/compressed/head-shmobile.S |   19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

--- 0001/arch/arm/boot/compressed/head-shmobile.S
+++ work/arch/arm/boot/compressed/head-shmobile.S	2013-06-05 11:59:06.000000000 +0900
@@ -55,26 +55,9 @@ __tmp_stack:
 __continue:
 #endif /* CONFIG_ZBOOT_ROM_MMC || CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI */
 
-	b	1f
-__atags:@ tag #1
-	.long	12			@ tag->hdr.size = tag_size(tag_core);
-	.long	0x54410001		@ tag->hdr.tag = ATAG_CORE;
-	.long   0			@ tag->u.core.flags = 0;
-	.long	0			@ tag->u.core.pagesize = 0;
-	.long	0			@ tag->u.core.rootdev = 0;
-	@ tag #2
-	.long	8			@ tag->hdr.size = tag_size(tag_mem32);
-	.long	0x54410002		@ tag->hdr.tag = ATAG_MEM;
-	.long	CONFIG_MEMORY_SIZE	@ tag->u.mem.size = CONFIG_MEMORY_SIZE;
-	.long	CONFIG_MEMORY_START	@ @ tag->u.mem.start = CONFIG_MEMORY_START;
-	@ tag #3
-	.long	0			@ tag->hdr.size = 0
-	.long	0			@ tag->hdr.tag = ATAG_NONE;
-1:
-
 	/* Set board ID necessary for boot */
 	ldr	r7, 1f				@ Set machine type register
-	adr	r8, __atags			@ Set atag register
+	mov	r8, #0				@ pass null pointer as atag
 	b	2f
 
 1 :	.long MACH_TYPE

WARNING: multiple messages have this Message-ID (diff)
From: magnus.damm@gmail.com (Magnus Damm)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/02] ARM: shmobile: Let romImage rely on default ATAGS
Date: Wed, 05 Jun 2013 16:55:22 +0900	[thread overview]
Message-ID: <20130605075522.17653.20769.sendpatchset@w520> (raw)
In-Reply-To: <20130605075514.17653.77135.sendpatchset@w520>

From: Magnus Damm <damm@opensource.se>

Remove the ATAGS data structure from head-shmobile.S
since a default ATAGS is already provided by the code
in arch/arm/kernel/atags_parser.c. Passing a NULL as
ATAGS is valid. For actual hardware specific setup
the fixup callback in the board code may be used.

Signed-off-by: Magnus Damm <damm@opensource.se>
---

 arch/arm/boot/compressed/head-shmobile.S |   19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

--- 0001/arch/arm/boot/compressed/head-shmobile.S
+++ work/arch/arm/boot/compressed/head-shmobile.S	2013-06-05 11:59:06.000000000 +0900
@@ -55,26 +55,9 @@ __tmp_stack:
 __continue:
 #endif /* CONFIG_ZBOOT_ROM_MMC || CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI */
 
-	b	1f
-__atags:@ tag #1
-	.long	12			@ tag->hdr.size = tag_size(tag_core);
-	.long	0x54410001		@ tag->hdr.tag = ATAG_CORE;
-	.long   0			@ tag->u.core.flags = 0;
-	.long	0			@ tag->u.core.pagesize = 0;
-	.long	0			@ tag->u.core.rootdev = 0;
-	@ tag #2
-	.long	8			@ tag->hdr.size = tag_size(tag_mem32);
-	.long	0x54410002		@ tag->hdr.tag = ATAG_MEM;
-	.long	CONFIG_MEMORY_SIZE	@ tag->u.mem.size = CONFIG_MEMORY_SIZE;
-	.long	CONFIG_MEMORY_START	@ @ tag->u.mem.start = CONFIG_MEMORY_START;
-	@ tag #3
-	.long	0			@ tag->hdr.size = 0
-	.long	0			@ tag->hdr.tag = ATAG_NONE;
-1:
-
 	/* Set board ID necessary for boot */
 	ldr	r7, 1f				@ Set machine type register
-	adr	r8, __atags			@ Set atag register
+	mov	r8, #0				@ pass null pointer as atag
 	b	2f
 
 1 :	.long MACH_TYPE

  reply	other threads:[~2013-06-05  7:55 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-05  7:55 [PATCH 00/02] ARM: shmobile: romImage update Magnus Damm
2013-06-05  7:55 ` Magnus Damm
2013-06-05  7:55 ` Magnus Damm [this message]
2013-06-05  7:55   ` [PATCH 01/02] ARM: shmobile: Let romImage rely on default ATAGS Magnus Damm
2013-06-05 11:51   ` Arnd Bergmann
2013-06-05 11:51     ` Arnd Bergmann
2013-06-06  3:13     ` Magnus Damm
2013-06-06  3:13       ` Magnus Damm
2013-06-06 16:19       ` Arnd Bergmann
2013-06-06 16:19         ` Arnd Bergmann
2013-06-07  0:14         ` Magnus Damm
2013-06-07  0:14           ` Magnus Damm
2013-06-12 14:10   ` Simon Horman
2013-06-12 14:10     ` Simon Horman
2013-06-05  7:55 ` [PATCH 02/02] ARM: shmobile: Remove romImage CONFIG_MEMORY_START Magnus Damm
2013-06-05  7:55   ` Magnus Damm
2013-06-12 14:10   ` Simon Horman
2013-06-12 14:10     ` Simon Horman
2013-06-12 14:09 ` [PATCH 00/02] ARM: shmobile: romImage update Simon Horman
2013-06-12 14:09   ` Simon Horman

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