From patchwork Fri Apr 9 11:13:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 419000 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D86F7C433B4 for ; Fri, 9 Apr 2021 11:17:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8035B610F7 for ; Fri, 9 Apr 2021 11:17:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233741AbhDILRd (ORCPT ); Fri, 9 Apr 2021 07:17:33 -0400 Received: from esa.microchip.iphmx.com ([68.232.153.233]:9944 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233727AbhDILRb (ORCPT ); Fri, 9 Apr 2021 07:17:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1617967039; x=1649503039; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4BQZ/iTmn3jDQYiKb3oiGkOU5qXJu63VT3CwhT9FgTM=; b=v9OtB5Wbox7jlpSevGoF+ZU+6WA7POdlKoiGYOOUhe5tcWMfDwDjNeMN bz6jksFcZM7W/YiI1uNkoMm3BVVVenbPYi1E5u10/trhjbtu/Rofo9c0R /ugXhUn9F+D24/d5yhKV570n8XecBEG+rEaeCcGx2c5gXZ0ctkydIYs+S 756zmt6yTamMNZjMwXgNZnhvWjFk5H6tTpsf4tTi7tYV/5x5dpCHhWOXz fV4GM5xgv9v2GR+hu/YC+54yOhh5nlo0NA8NsMyHcZZdS5dvzGzcGrTGc i6ZDXVz7o1nMJJy+R25esFShe9bFXa8qWU/22Ltm1K+Z7OzFFh02Bx34Z A==; IronPort-SDR: /6rC9fKFP/N28mIlf2A5U8Yf9Qkc520gdrxRYAXGVtCh3Ja0Gtn+NOiay/ynpC81L6qXHi5PYa beAwLo+1cz+2bBX8UOnGct1AS5Aung9AjH3pXlTJwEBgsh3jQOtTY6PZUs4CdMwlw5D8HKIicN eE0sjQEHQcEkXzDaYV4HwymhbxuYCsCZIVUJOT9WpDFfNa66/OKM+oAEDyPfJoRHq9UWiCdud+ pHJ6A1aU4s5SKV7VmGPQ/ilCanu0JFSOE0d7q2azQiwEQeccJ/EgpniTiEcR8TiS+CtDcyHaST FXo= X-IronPort-AV: E=Sophos;i="5.82,209,1613458800"; d="scan'208";a="115878643" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa5.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 09 Apr 2021 04:17:14 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Fri, 9 Apr 2021 04:17:13 -0700 Received: from m18063-ThinkPad-T460p.mchp-main.com (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2176.2 via Frontend Transport; Fri, 9 Apr 2021 04:16:57 -0700 From: Claudiu Beznea To: , , , , CC: , , , Claudiu Beznea Subject: [PATCH v2 15/24] ARM: at91: pm: wait for ddr power mode off Date: Fri, 9 Apr 2021 14:13:36 +0300 Message-ID: <20210409111345.294472-16-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210409111345.294472-1-claudiu.beznea@microchip.com> References: <20210409111345.294472-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Wait for DDR power mode off before shutting down the core. Signed-off-by: Claudiu Beznea --- arch/arm/mach-at91/pm_suspend.S | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index 9c9e08fd8300..7396e18dd7e5 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -980,6 +980,11 @@ ulp_exit: mov tmp1, #0x1 str tmp1, [r0, #0x10] + /* Wait for it. */ +1: ldr tmp1, [r0, #0x10] + tst tmp1, #0x1 + beq 1b + /* Shutdown */ ldr r0, .shdwc mov tmp1, #0xA5000000