Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751635AbbDCXDa (ORCPT ); Fri, 3 Apr 2015 19:03:30 -0400 Received: from seldrel01.sonyericsson.com ([212.209.106.2]:12515 "EHLO seldrel01.sonyericsson.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751032AbbDCXD1 (ORCPT ); Fri, 3 Apr 2015 19:03:27 -0400 From: Bjorn Andersson To: Kumar Gala , Jeffrey Hugo , Andry Gross CC: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , , linux-arm-msm , Subject: [PATCH 1/2] soc: qcom: Add device tree binding for SMEM Date: Fri, 3 Apr 2015 16:03:19 -0700 Message-ID: <1428102200-5948-1-git-send-email-bjorn.andersson@sonymobile.com> X-Mailer: git-send-email 1.8.2.2 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 Content-Length: 1944 Lines: 72 Add device tree binding documentation for the Qualcom Shared Memory manager. Signed-off-by: Bjorn Andersson --- .../devicetree/bindings/soc/qcom/qcom,smem.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt new file mode 100644 index 0000000..d90f839 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt @@ -0,0 +1,49 @@ +Qualcomm Shared Memory binding + +This binding describes the Qualcomm Shared Memory, used to share data between +various subsystems and OSes in Qualcomm platforms. + +- compatible: + Usage: required + Value type: + Definition: must be: + "qcom,smem" + +- memory-region: + Usage: required + Value type: + Definition: handle to memory reservation for main smem memory region. + +- reg: + Usage: optional + Value type: + Definition: base address and size pair for any additional memory areas + of the shared memory. + +- hwspinlocks: + Usage: required + Value type: + Definition: reference to a hwspinlock used to protect allocations from + the shared memory + += EXAMPLE + + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + smem_region: smem@fa00000 { + reg = <0xfa00000 0x200000>; + no-map; + }; + }; + + smem@fa00000 { + compatible = "qcom,smem"; + + memory-region = <&smem_region>; + reg = <0xfc428000 0x4000>; + + hwlocks = <&tcsr_mutex 3>; + }; -- 1.8.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/