From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752596AbbCIDyt (ORCPT ); Sun, 8 Mar 2015 23:54:49 -0400 Received: from eusmtp01.atmel.com ([212.144.249.242]:15915 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751790AbbCIDyr (ORCPT ); Sun, 8 Mar 2015 23:54:47 -0400 From: Wenyou Yang To: , CC: , , , , , , , Subject: [PATCH v2.0 2/2] pm: at91: flush data cache and clean, invalidate and disable the L2 cache Date: Mon, 9 Mar 2015 11:54:26 +0800 Message-ID: <1425873266-8192-1-git-send-email-wenyou.yang@atmel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1425873187-8096-1-git-send-email-wenyou.yang@atmel.com> References: <1425873187-8096-1-git-send-email-wenyou.yang@atmel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Flush data cache, and clean, invalidate and disable the L2 cache before going to suspend. Restore the L2 cache configuration and re-enable the L2 cache after waking up. Signed-off-by: Wenyou Yang --- arch/arm/mach-at91/pm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 9fb868d..ac947cd 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -133,8 +134,13 @@ static void at91_pm_suspend(suspend_state_t state) pm_data |= (state == PM_SUSPEND_MEM) ? AT91_PM_MODE(AT91_PM_SLOW_CLOCK) : 0; + flush_cache_all(); + outer_disable(); + at91_suspend_sram_fn(at91_pmc_base, at91_ramc_base[0], at91_ramc_base[1], pm_data); + + outer_resume(); } static int at91_pm_enter(suspend_state_t state) -- 1.7.9.5