From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from az33egw02.freescale.net (az33egw02.freescale.net [192.88.158.103]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "az33egw02.freescale.net", Issuer "Thawte Premium Server CA" (verified OK)) by ozlabs.org (Postfix) with ESMTP id AB954DDFC2 for ; Tue, 18 Sep 2007 02:58:43 +1000 (EST) Date: Mon, 17 Sep 2007 11:58:03 -0500 From: Scott Wood To: galak@kernel.crashing.org Subject: [PATCH 17/28] 8xx: Set initial memory limit. Message-ID: <20070917165803.GQ6563@loki.buserror.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20070917165643.GA6545@loki.buserror.net> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: John Traill The 8xx can only support a max of 8M during early boot (it seems a lot of 8xx boards only have 8M so the bug was never triggered), but the early allocator isn't aware of this. The following change makes it able to run with larger memory. Signed-off-by: Vitaly Bordug Signed-off-by: Scott Wood --- arch/powerpc/mm/init_32.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index d65995a..e09513a 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -132,6 +132,9 @@ void __init MMU_init(void) /* 601 can only access 16MB at the moment */ if (PVR_VER(mfspr(SPRN_PVR)) == 1) __initial_memory_limit = 0x01000000; + /* 8xx can only access 8MB at the moment */ + if (PVR_VER(mfspr(SPRN_PVR)) == 0x50) + __initial_memory_limit = 0x00800000; /* parse args from command line */ MMU_setup(); -- 1.5.3.1