From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756707AbZFEIMn (ORCPT ); Fri, 5 Jun 2009 04:12:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755167AbZFEIGL (ORCPT ); Fri, 5 Jun 2009 04:06:11 -0400 Received: from smtp.gentoo.org ([140.211.166.183]:37498 "EHLO smtp.gentoo.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754970AbZFEIFb (ORCPT ); Fri, 5 Jun 2009 04:05:31 -0400 From: Mike Frysinger To: linux-kernel@vger.kernel.org Cc: uclinux-dist-devel@blackfin.uclinux.org Subject: [PATCH 19/62] Blackfin: fix detection of cached L2 SRAM Date: Fri, 5 Jun 2009 04:04:28 -0400 Message-Id: <1244189111-19639-20-git-send-email-vapier@gentoo.org> X-Mailer: git-send-email 1.6.3.1 In-Reply-To: <1244189111-19639-1-git-send-email-vapier@gentoo.org> References: <1244189111-19639-1-git-send-email-vapier@gentoo.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Make sure our bfin_addr_dcachable() function flags cached L2 SRAM properly else memory easily goes unflushed when working with DMA. Signed-off-by: Mike Frysinger --- arch/blackfin/include/asm/cacheflush.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h index d7726ab..94697f0 100644 --- a/arch/blackfin/include/asm/cacheflush.h +++ b/arch/blackfin/include/asm/cacheflush.h @@ -108,6 +108,11 @@ static inline int bfin_addr_dcachable(unsigned long addr) addr >= _ramend && addr < physical_mem_end) return 1; +#ifndef CONFIG_BFIN_L2_NOT_CACHED + if (addr >= L2_START && addr < L2_START + L2_LENGTH) + return 1; +#endif + return 0; } -- 1.6.3.1