From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QqJbr-0001Ew-Iv for barebox@lists.infradead.org; Mon, 08 Aug 2011 06:46:50 +0000 From: Sascha Hauer Date: Mon, 8 Aug 2011 08:46:39 +0200 Message-Id: <1312786003-14734-5-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1312786003-14734-1-git-send-email-s.hauer@pengutronix.de> References: <1312786003-14734-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 4/8] ARM: remove unused exception To: barebox@lists.infradead.org The exception vector at 0x14 is not used on arm, so no need to bind this address to a exception handler. Remove the corresponding code Signed-off-by: Sascha Hauer --- arch/arm/cpu/exceptions.S | 5 ----- arch/arm/cpu/interrupts.c | 13 ------------- arch/arm/cpu/start.c | 2 +- 3 files changed, 1 insertions(+), 19 deletions(-) diff --git a/arch/arm/cpu/exceptions.S b/arch/arm/cpu/exceptions.S index 4741bb8..a879755 100644 --- a/arch/arm/cpu/exceptions.S +++ b/arch/arm/cpu/exceptions.S @@ -136,11 +136,6 @@ data_abort: bl do_data_abort .align 5 -.globl not_used -not_used: - get_bad_stack - bad_save_user_regs - bl do_not_used .globl irq .globl fiq diff --git a/arch/arm/cpu/interrupts.c b/arch/arm/cpu/interrupts.c index 5168921..68b2931 100644 --- a/arch/arm/cpu/interrupts.c +++ b/arch/arm/cpu/interrupts.c @@ -173,19 +173,6 @@ void do_data_abort (struct pt_regs *pt_regs) } /** - * The CPU catches a not-used(?) abort. - * @param[in] pt_regs Register set content when the accident happens - * - * FIXME: What does it mean, why is reset the only solution? - */ -void do_not_used (struct pt_regs *pt_regs) -{ - printf ("not used\n"); - show_regs (pt_regs); - bad_mode (); -} - -/** * The CPU catches a fast interrupt request. * @param[in] pt_regs Register set content when the interrupt happens * diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c index f20ce74..5e09300 100644 --- a/arch/arm/cpu/start.c +++ b/arch/arm/cpu/start.c @@ -36,7 +36,7 @@ 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 */ - "ldr pc, =not_used\n" /* (reserved) */ + "1: bne 1b\n" /* (reserved) */ "ldr pc, =irq\n" /* irq (interrupt) */ "ldr pc, =fiq\n" /* fiq (fast interrupt) */ #else -- 1.7.5.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox