[PATCH v2 3/3] arm64: dts: qcom: ipq5332-rdp-common: Enable quad SPI mode for SPI-NAND
Md Sadre Alam <[email protected]>
| Newsgroups | org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
The SPI-NAND device on the IPQ5332 RDP supports 4-bit data transfers, but the device tree does not describe the bus width, so transfers use the default single-bit mode. Set spi-rx-bus-width and spi-tx-bus-width to 4 to enable quad read and write transfers and improve SPI-NAND throughput. Reviewed-by: Konrad Dybcio <[email protected]> Signed-off-by: Md Sadre Alam <[email protected]> --- arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi b/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi index 3bbf748f2e5c..6f5b193a204b 100644 --- a/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi @@ -141,5 +141,7 @@ flash@0 { nand-ecc-engine = <&qpic_nand>; nand-ecc-strength = <4>; nand-ecc-step-size = <512>; + spi-rx-bus-width = <4>; + spi-tx-bus-width = <4>; }; }; -- 2.34.1