From: Bjorn Andersson <bjorn.andersson@sonymobile.com> To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, Jeffrey Hugo <jhugo@codeaurora.org>, Andry Gross <agross@codeaurora.org> Cc: devicetree@vger.kernel.org, linux-arm-msm <linux-arm-msm@vger.kernel.org>, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] soc: qcom: Add device tree binding for SMEM Date: Sat, 11 Apr 2015 16:32:57 -0700 [thread overview] Message-ID: <1428795178-24312-1-git-send-email-bjorn.andersson@sonymobile.com> (raw) Add device tree binding documentation for the Qualcom Shared Memory manager. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> --- Changes since v1: - None .../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: <stringlist> + Definition: must be: + "qcom,smem" + +- memory-region: + Usage: required + Value type: <prop-encoded-array> + Definition: handle to memory reservation for main smem memory region. + +- reg: + Usage: optional + Value type: <prop-encoded-array> + Definition: base address and size pair for any additional memory areas + of the shared memory. + +- hwspinlocks: + Usage: required + Value type: <prop-encoded-array> + 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
WARNING: multiple messages have this Message-ID (diff)
From: Bjorn Andersson <bjorn.andersson@sonymobile.com> To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, Jeffrey Hugo <jhugo@codeaurora.org>, Andry Gross <agross@codeaurora.org> Cc: <devicetree@vger.kernel.org>, linux-arm-msm <linux-arm-msm@vger.kernel.org>, <linux-kernel@vger.kernel.org> Subject: [PATCH v2 1/2] soc: qcom: Add device tree binding for SMEM Date: Sat, 11 Apr 2015 16:32:57 -0700 [thread overview] Message-ID: <1428795178-24312-1-git-send-email-bjorn.andersson@sonymobile.com> (raw) Add device tree binding documentation for the Qualcom Shared Memory manager. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> --- Changes since v1: - None .../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: <stringlist> + Definition: must be: + "qcom,smem" + +- memory-region: + Usage: required + Value type: <prop-encoded-array> + Definition: handle to memory reservation for main smem memory region. + +- reg: + Usage: optional + Value type: <prop-encoded-array> + Definition: base address and size pair for any additional memory areas + of the shared memory. + +- hwspinlocks: + Usage: required + Value type: <prop-encoded-array> + 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
next reply other threads:[~2015-04-11 23:33 UTC|newest] Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-04-11 23:32 Bjorn Andersson [this message] 2015-04-11 23:32 ` [PATCH v2 1/2] soc: qcom: Add device tree binding for SMEM Bjorn Andersson 2015-04-11 23:32 ` [PATCH v2 2/2] soc: qcom: Add Shared Memory Manager driver Bjorn Andersson 2015-04-11 23:32 ` Bjorn Andersson 2015-04-13 19:20 ` Andy Gross 2015-04-23 21:18 ` Jeffrey Hugo 2015-04-25 0:31 ` Bjorn Andersson 2015-04-27 20:25 ` Jeffrey Hugo 2015-04-23 20:01 ` [PATCH v2 1/2] soc: qcom: Add device tree binding for SMEM Jeffrey Hugo [not found] ` <55394F98.3060600-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> 2015-04-24 3:28 ` Bjorn Andersson 2015-04-24 3:28 ` Bjorn Andersson 2015-04-25 3:02 ` Andy Gross [not found] ` <1428795178-24312-1-git-send-email-bjorn.andersson-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org> 2015-04-30 15:38 ` Jeffrey Hugo 2015-04-30 15:38 ` Jeffrey Hugo 2015-04-30 17:41 ` Bjorn Andersson
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