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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: barebox@lists.infradead.org
Subject: [PATCH 5/6] ARM: add ARM_EXCEPTION_VECTOR6 options
Date: Tue,  3 Jan 2012 06:00:49 +0100	[thread overview]
Message-ID: <1325566850-24432-5-git-send-email-plagnioj@jcrosoft.com> (raw)
In-Reply-To: <1325566850-24432-1-git-send-email-plagnioj@jcrosoft.com>

to pass the bare_init or barebox size via the vector 6

ARM_EXCEPTION_VECTOR6_BARE_INIT_SIZE    bare_init size
ARM_EXCEPTION_VECTOR6_SIZE              barebox size

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/Kconfig     |   11 +++++++++++
 arch/arm/cpu/start.c |   14 ++++++++++++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b600179..49445fb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -26,6 +26,17 @@ config ARM_LINUX
 	default y
 	depends on CMD_BOOTZ || CMD_BOOTU || CMD_BOOTM
 
+config ARM_EXCEPTION_VECTOR6
+	bool
+
+config ARM_EXCEPTION_VECTOR6_SIZE
+	bool
+	depends on ARM_EXCEPTION_VECTOR6
+
+config  ARM_EXCEPTION_VECTOR6_BARE_INIT_SIZE
+	bool
+	depends on ARM_EXCEPTION_VECTOR6
+
 menu "System Type                   "
 
 choice
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index 5e09300..09e80d7 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -27,6 +27,16 @@
 #include <asm-generic/memory_layout.h>
 #include <asm/sections.h>
 
+#ifdef CONFIG_ARM_EXCEPTION_VECTOR6
+#ifdef CONFIG_ARM_EXCEPTION_VECTOR6_BARE_INIT_SIZE
+#define exception_vector_6	".word _barebox_bare_init_size\n"
+#else
+#define exception_vector_6	".word _barebox_image_size\n"
+#endif
+#else
+#define exception_vector_6	"1: bne 1b\n"
+#endif
+
 void __naked __section(.text_entry) exception_vectors(void)
 {
 	__asm__ __volatile__ (
@@ -36,7 +46,7 @@ void __naked __section(.text_entry) exception_vectors(void)
 		"ldr pc, =software_interrupt\n"		/* software interrupt (SWI) */
 		"ldr pc, =prefetch_abort\n"		/* prefetch abort */
 		"ldr pc, =data_abort\n"			/* data abort */
-		"1: bne 1b\n"				/* (reserved) */
+		exception_vector_6			/* (reserved) */
 		"ldr pc, =irq\n"			/* irq (interrupt) */
 		"ldr pc, =fiq\n"			/* fiq (fast interrupt) */
 #else
@@ -44,7 +54,7 @@ void __naked __section(.text_entry) exception_vectors(void)
 		"1: bne 1b\n"				/* software interrupt (SWI) */
 		"1: bne 1b\n"				/* prefetch abort */
 		"1: bne 1b\n"				/* data abort */
-		"1: bne 1b\n"				/* (reserved) */
+		exception_vector_6			/* (reserved) */
 		"1: bne 1b\n"				/* irq (interrupt) */
 		"1: bne 1b\n"				/* fiq (fast interrupt) */
 #endif
-- 
1.7.7


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  parent reply	other threads:[~2012-01-03  5:07 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-03  5:00 [PATCH 1/6] defaultenv: source the init_board so we can keep exported env Jean-Christophe PLAGNIOL-VILLARD
2012-01-03  5:00 ` [PATCH 2/6] defaultenv: enable progress for cp Jean-Christophe PLAGNIOL-VILLARD
2012-01-03  5:00 ` [PATCH 3/6] poller_call: move from getc to is_timeout Jean-Christophe PLAGNIOL-VILLARD
2012-01-04  9:25   ` Sascha Hauer
2012-01-04 10:46     ` Jean-Christophe PLAGNIOL-VILLARD
2012-01-03  5:00 ` [PATCH 4/6] arm: introduce barebox_bare_init_size to known the bare_init size Jean-Christophe PLAGNIOL-VILLARD
2012-01-03  5:00 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2012-01-04 10:26   ` [PATCH 5/6] ARM: add ARM_EXCEPTION_VECTOR6 options Sascha Hauer
2012-01-03  5:00 ` [PATCH 6/6] at91: use " Jean-Christophe PLAGNIOL-VILLARD

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