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Diffstat (limited to 'target/linux/ipq806x/patches-3.18/034-soc-qcom-Add-device-tree-binding-for-SMEM.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-3.18/034-soc-qcom-Add-device-tree-binding-for-SMEM.patch | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-3.18/034-soc-qcom-Add-device-tree-binding-for-SMEM.patch b/target/linux/ipq806x/patches-3.18/034-soc-qcom-Add-device-tree-binding-for-SMEM.patch new file mode 100644 index 0000000..d22db22 --- /dev/null +++ b/target/linux/ipq806x/patches-3.18/034-soc-qcom-Add-device-tree-binding-for-SMEM.patch @@ -0,0 +1,82 @@ +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Subject: [v2,1/2] soc: qcom: Add device tree binding for SMEM +From: Bjorn Andersson <bjorn.andersson@sonymobile.com> +X-Patchwork-Id: 6202201 +Message-Id: <1428795178-24312-1-git-send-email-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> +Date: Sat, 11 Apr 2015 16:32:57 -0700 + +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 + +--- /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>; ++ }; |