From: Mike Frysinger <vapier.adi@gmail.com>
Date: Tue, 18 Nov 2008 09:48:22 +0000 (+0800)
Subject: Blackfin arch: do not bother initializing the first 4k
X-Git-Tag: v3.12-rc1~16487^2~147
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9f20cf2527fdbd5ee942ac87acff253d391b162f;p=kernel%2Fkernel-generic.git

Blackfin arch: do not bother initializing the first 4k

our kernel should be sane now, and we want to catch NULL bugs,
not ignore them

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---

diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index 29cd019..c1dcaeb 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -244,18 +244,6 @@ ENTRY(_real_start)
 	r2.h = ___bss_stop;
 	call __init_clear_bss
 
-	/* In case there is a NULL pointer reference,
-	 * zero out region before stext
-	 */
-	p1 = r0;
-	r2.l = __stext;
-	r2.h = __stext;
-	r2 >>= 2;
-	p2 = r2;
-	lsetup (.L_clear_zero, .L_clear_zero) lc0 = p2;
-.L_clear_zero:
-	[p1++] = r0;
-
 	/* Pass the u-boot arguments to the global value command line */
 	R0 = R7;
 	call _cmdline_init;