From patchwork Tue Oct 21 23:26:00 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Zhong X-Patchwork-Id: 5128861 Return-Path: X-Original-To: patchwork-linux-rockchip@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 4A719C11AC for ; Tue, 21 Oct 2014 23:26:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6FAE320145 for ; Tue, 21 Oct 2014 23:26:47 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9AAEF20138 for ; Tue, 21 Oct 2014 23:26:46 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XgipC-0002jq-7V; Tue, 21 Oct 2014 23:26:46 +0000 Received: from va-smtp01.263.net ([54.88.144.211]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xgip0-0002XK-5x; Tue, 21 Oct 2014 23:26:34 +0000 Received: from leejh-Precision-WorkStation-T3500.corp.google.com (localhost.localdomain [127.0.0.1]) by va-smtp01.263.net (Postfix) with ESMTP id 2DC147F90C; Wed, 22 Oct 2014 07:26:06 +0800 (CST) X-RL-SENDER: zyw@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 127.0.0.1 X-LOGIN-NAME: zyw@rock-chips.com X-UNIQUE-TAG: <0a31dbc5dc0a98c5d46e5e1c153477b4> X-SENDER: zyw@rock-chips.com X-DNS-TYPE: 1 Received: from leejh-Precision-WorkStation-T3500.corp.google.com (localhost [127.0.0.1]) by va-smtp01.263.net (Postfix) whith ESMTP id 31211RA0SBN; Wed, 22 Oct 2014 07:26:06 +0800 (CST) From: Chris Zhong To: Heiko Stuebner Subject: [PATCH v4 5/6] ARM: rockchip: Add pmu-sram binding Date: Tue, 21 Oct 2014 16:26:00 -0700 Message-Id: <1413933960-25839-1-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1413933461-25602-1-git-send-email-zyw@rock-chips.com> References: <1413933461-25602-1-git-send-email-zyw@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141021_162634_303566_AD411B49 X-CRM114-Status: UNSURE ( 8.14 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: Mark Rutland , devicetree@vger.kernel.org, Mike Turquette , Pawel Moll , Ian Campbell , Linus Walleij , dianders@chromium.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Rob Herring , Kumar Gala , Chris Zhong , Russell King , Tony Xie , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-3.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The pmu-sram is used to store resume code, suspend/resume need get the address of it. Therefore add a binding and documentation for it. Signed-off-by: Tony Xie Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson --- Changes in v4: None Changes in v3: None Changes in v2: None .../devicetree/bindings/arm/rockchip/pmu-sram.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt diff --git a/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt b/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt new file mode 100644 index 0000000..77284c0 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt @@ -0,0 +1,15 @@ +Rockchip SRAM for pmu: +------------------------------ + +The sram of pmu is used to store the function of resume from maskrom(the 1st +level loader). + +Required node properties: +- compatible : should be "rockchip,rk3288-pmu-sram" +- reg : physical base address and the size of the registers window + +Example: + pmu_intmem@ff720000 { + compatible = "rockchip,rk3288-pmu-sram", "mmio-sram"; + reg = <0xff720000 0x4000>; + };