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From: jszhang@marvell.com (Jisheng Zhang)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC/query] ARM: enable AUTO_ZRELADDR at 16MB aligned of RAM ?
Date: Thu, 17 Oct 2013 22:18:06 +0800	[thread overview]
Message-ID: <20131017221806.514ca45a@xhacker> (raw)

Hi all,

I need your help about where the 128MB limitation of AUTO_ZRELADDR comes from? IOW,
why 
                mov     r4, pc
                and     r4, r4, #0xf8000000

rather than
                mov     r4, pc
                and     r4, r4, #0xff000000


Can we make the following change to arch/arm/boot/compressed/head.S?

 		@ determine final kernel image address
 		mov	r4, pc
-		and	r4, r4, #0xf8000000
+		and	r4, r4, #0xff000000
 		add	r4, r4, #TEXT_OFFSET
 #else
 		ldr	r4, =zreladdr


Thanks in advance,
Jisheng

                 reply	other threads:[~2013-10-17 14:18 UTC|newest]

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