From patchwork Fri Oct 17 20:47:33 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Zhong X-Patchwork-Id: 400630 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 2E93B1400A6 for ; Sat, 18 Oct 2014 07:48:05 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751739AbaJQUrr (ORCPT ); Fri, 17 Oct 2014 16:47:47 -0400 Received: from va-smtp01.263.net ([54.88.144.211]:52040 "EHLO va-smtp01.263.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751730AbaJQUrq (ORCPT ); Fri, 17 Oct 2014 16:47:46 -0400 Received: from leejh-Precision-WorkStation-T3500.corp.google.com (localhost.localdomain [127.0.0.1]) by va-smtp01.263.net (Postfix) with ESMTP id 8D70A7F90E; Sat, 18 Oct 2014 04:47:38 +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: <452b61ab76eec59695e5c73e5787dcda> X-ATTACHMENT-NUM: 0 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 3650ZSX9C; Sat, 18 Oct 2014 04:47:38 +0800 (CST) From: zyw@rock-chips.com To: Heiko Stuebner Cc: Mike Turquette , Ian Campbell , dianders@chromium.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kumar Gala , Russell King , linux-rockchip@lists.infradead.org, Rob Herring , Pawel Moll , Chris Zhong , Mark Rutland , linux-arm-kernel@lists.infradead.org, Tony Xie Subject: [PATCH v2 3/4] ARM: rockchip: Add pmu-sram binding Date: Fri, 17 Oct 2014 13:47:33 -0700 Message-Id: <1413578853-26256-1-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1413578696-26125-1-git-send-email-zyw@rock-chips.com> References: <1413578696-26125-1-git-send-email-zyw@rock-chips.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Chris Zhong 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 --- 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>; + };