On 10/17/19 8:00 PM, Ley Foon Tan wrote: > On Wed, 2019-10-16 at 02:40 -0700, Ooi, Joyce wrote: >> This patch adds QSPI flash interface in device tree for Intel Agilex >> >> Signed-off-by: Ooi, Joyce <joyce.ooi@xxxxxxxxx> >> --- >> v2: update the qspi_rootfs partition size >> --- >> arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts | 35 >> ++++++++++++++++++++++ >> 1 file changed, 35 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts >> b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts >> index 7814a9e..8de8118 100644 >> --- a/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts >> +++ b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts >> @@ -73,3 +73,38 @@ >> &watchdog0 { >> status = "okay"; >> }; >> + >> +&qspi { >> + flash@0 { >> + #address-cells = <1>; >> + #size-cells = <1>; >> + compatible = "mt25qu02g"; >> + reg = <0>; >> + spi-max-frequency = <50000000>; > QSPI can support up to 100MHz. I've updated the patch accordingly. Dinh