From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 18 Mar 2009 10:06:15 +0000 (+0900)
Subject: sh: kexec: Drop SR.BL bit toggling.
X-Git-Tag: firefly_0821_release~15248^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a6bab7b5c18501e4dd3201ae8ac1dc6da5f07acc;p=firefly-linux-kernel-4.4.55.git

sh: kexec: Drop SR.BL bit toggling.

For the time being, this creates far more problems than it solves,
evident by the second local_irq_disable(). Kill all of this off
and rely on IRQ disabling to protect against the VBR reload.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index c44efb73ab1a..69268c0d8063 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -110,23 +110,22 @@ void machine_kexec(struct kimage *image)
 	memcpy((void *)reboot_code_buffer, relocate_new_kernel,
 						relocate_new_kernel_size);
 
-        kexec_info(image);
+	kexec_info(image);
 	flush_cache_all();
 
-	set_bl_bit();
 #if defined(CONFIG_SH_STANDARD_BIOS)
 	asm volatile("ldc %0, vbr" :
 		     : "r" (((unsigned long) gdb_vbr_vector) - 0x100)
 		     : "memory");
 #endif
+
 	/* now call it */
 	rnk = (relocate_new_kernel_t) reboot_code_buffer;
 	(*rnk)(page_list, reboot_code_buffer, image->start);
 
 #ifdef CONFIG_KEXEC_JUMP
 	asm volatile("ldc %0, vbr" : : "r" (&vbr_base) : "memory");
-	local_irq_disable();
-	clear_bl_bit();
+
 	if (image->preserve_context)
 		restore_processor_state();