diff options
Diffstat (limited to 'target/linux/ipq806x/patches-3.18/163-dt-bindings-qcom_nandc-Add-DT-bindings.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-3.18/163-dt-bindings-qcom_nandc-Add-DT-bindings.patch | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-3.18/163-dt-bindings-qcom_nandc-Add-DT-bindings.patch b/target/linux/ipq806x/patches-3.18/163-dt-bindings-qcom_nandc-Add-DT-bindings.patch new file mode 100644 index 0000000..6530eb1 --- /dev/null +++ b/target/linux/ipq806x/patches-3.18/163-dt-bindings-qcom_nandc-Add-DT-bindings.patch @@ -0,0 +1,82 @@ +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Subject: [v3,3/5] dt/bindings: qcom_nandc: Add DT bindings +From: Archit Taneja <architt@codeaurora.org> +X-Patchwork-Id: 6927141 +Message-Id: <1438578498-32254-4-git-send-email-architt@codeaurora.org> +To: linux-mtd@lists.infradead.org, dehrenberg@google.com, + cernekee@gmail.com, computersforpeace@gmail.com +Cc: linux-arm-msm@vger.kernel.org, agross@codeaurora.org, + sboyd@codeaurora.org, linux-kernel@vger.kernel.org, + Archit Taneja <architt@codeaurora.org>, devicetree@vger.kernel.org +Date: Mon, 3 Aug 2015 10:38:16 +0530 + +Add DT bindings document for the Qualcomm NAND controller driver. + +Cc: devicetree@vger.kernel.org + +v3: +- Don't use '0x' when specifying nand controller address space +- Add optional property for on-flash bbt usage + +Acked-by: Andy Gross <agross@codeaurora.org> +Signed-off-by: Archit Taneja <architt@codeaurora.org> + +--- +.../devicetree/bindings/mtd/qcom_nandc.txt | 49 ++++++++++++++++++++++ + 1 file changed, 49 insertions(+) + create mode 100644 Documentation/devicetree/bindings/mtd/qcom_nandc.txt + +--- /dev/null ++++ b/Documentation/devicetree/bindings/mtd/qcom_nandc.txt +@@ -0,0 +1,49 @@ ++* Qualcomm NAND controller ++ ++Required properties: ++- compatible: should be "qcom,ebi2-nand" for IPQ806x ++- reg: MMIO address range ++- clocks: must contain core clock and always on clock ++- clock-names: must contain "core" for the core clock and "aon" for the ++ always on clock ++- dmas: DMA specifier, consisting of a phandle to the ADM DMA ++ controller node and the channel number to be used for ++ NAND. Refer to dma.txt and qcom_adm.txt for more details ++- dma-names: must be "rxtx" ++- qcom,cmd-crci: must contain the ADM command type CRCI block instance ++ number specified for the NAND controller on the given ++ platform ++- qcom,data-crci: must contain the ADM data type CRCI block instance ++ number specified for the NAND controller on the given ++ platform ++ ++Optional properties: ++- nand-bus-width: bus width. Must be 8 or 16. If not present, 8 is chosen ++ as default ++ ++- nand-ecc-strength: number of bits to correct per ECC step. Must be 4 or 8 ++ bits. If not present, 4 is chosen as default ++- nand-on-flash-bbt: Create/use on-flash bad block table ++ ++The device tree may optionally contain sub-nodes describing partitions of the ++address space. See partition.txt for more detail. ++ ++Example: ++ ++nand@1ac00000 { ++ compatible = "qcom,ebi2-nandc"; ++ reg = <0x1ac00000 0x800>; ++ ++ clocks = <&gcc EBI2_CLK>, ++ <&gcc EBI2_AON_CLK>; ++ clock-names = "core", "aon"; ++ ++ dmas = <&adm_dma 3>; ++ dma-names = "rxtx"; ++ qcom,cmd-crci = <15>; ++ qcom,data-crci = <3>; ++ ++ partition@0 { ++ ... ++ }; ++}; |