From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 02 Jul 2009 04:51:40 +0200 (CEST) Received: from dns1.mips.com ([63.167.95.197]:39589 "EHLO dns1.mips.com" rhost-flags-OK-OK-OK-OK) by ftp.linux-mips.org with ESMTP id S1492014AbZGBCtJ (ORCPT ); Thu, 2 Jul 2009 04:49:09 +0200 Received: from MTVEXCHANGE.mips.com ([192.168.36.60]) by dns1.mips.com (8.13.8/8.13.8) with ESMTP id n622hQJc016361 for ; Wed, 1 Jul 2009 19:43:26 -0700 Received: from mercury.mips.com ([192.168.64.101]) by MTVEXCHANGE.mips.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 1 Jul 2009 19:43:26 -0700 Received: from [192.168.65.97] (linux-raghu [192.168.65.97]) by mercury.mips.com (8.13.5/8.13.5) with ESMTP id n622hQWL006016; Wed, 1 Jul 2009 19:43:26 -0700 (PDT) From: Raghu Gandham Subject: [PATCH 13/15] Avoid accessing GCMP registers when they are not present To: linux-mips@linux-mips.org Cc: chris@mips.com Date: Wed, 01 Jul 2009 19:43:00 -0700 Message-ID: <20090702024300.23268.72873.stgit@linux-raghu> In-Reply-To: <20090702023938.23268.65453.stgit@linux-raghu> References: <20090702023938.23268.65453.stgit@linux-raghu> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 02 Jul 2009 02:43:26.0365 (UTC) FILETIME=[DFE24CD0:01C9FABE] Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 23605 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: raghu@mips.com Precedence: bulk X-list: linux-mips From: Jaidev Patwardhan Signed-off-by: Chris Dearman --- arch/mips/mti-malta/malta-int.c | 16 +++++++++++++--- 1 files changed, 13 insertions(+), 3 deletions(-) diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index 92e3b56..63e7161 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -413,6 +413,11 @@ static struct gic_intr_map gic_intr_map[GIC_NUM_INTRS] = { */ int __init gcmp_probe(unsigned long addr, unsigned long size) { + if (mips_revision_sconid != MIPS_REVISION_SCON_ROCIT) { + gcmp_present = 0; + return gcmp_present; + } + if (gcmp_present >= 0) return gcmp_present; @@ -481,9 +486,14 @@ void __init arch_init_irq(void) GCMPGCB(GICBA) = GIC_BASE_ADDR | GCMP_GCB_GICBA_EN_MSK; gic_present = 1; } else { - _msc01_biu_base = (unsigned long) ioremap_nocache(MSC01_BIU_REG_BASE, MSC01_BIU_ADDRSPACE_SZ); - gic_present = (REG(_msc01_biu_base, MSC01_SC_CFG) & - MSC01_SC_CFG_GICPRES_MSK) >> MSC01_SC_CFG_GICPRES_SHF; + if (mips_revision_sconid == MIPS_REVISION_SCON_ROCIT) { + _msc01_biu_base = (unsigned long) + ioremap_nocache(MSC01_BIU_REG_BASE, + MSC01_BIU_ADDRSPACE_SZ); + gic_present = (REG(_msc01_biu_base, MSC01_SC_CFG) & + MSC01_SC_CFG_GICPRES_MSK) >> + MSC01_SC_CFG_GICPRES_SHF; + } } if (gic_present) pr_debug("GIC present\n");