Hi All,
we are testing QSPI flash in Cyclone V custom board. The QSPI pins used are
same like cyclone V sockit board.we are using uboot 2024.01
when we do sf probe, we got the below error. we have verified the pin mux
configuration and also enabled the clock.
=> sf probe 0:0
jedec_spi_nor flash@0: unrecognized JEDEC id bytes: ff, ff, ff
Failed to initialize SPI flash at 0:0 (error -2)
The DTS file contains the following entries
&qspi {
status = "okay";
flash: flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "n25q256a";
reg = <0>;
spi-max-frequency = <100000000>;
m25p,fast-read;
cdns,page-size = <256>;
cdns,block-size = <16>;
cdns,read-delay = <4>;
cdns,tshsl-ns = <50>;
cdns,tsd2d-ns = <50>;
cdns,tchsh-ns = <4>;
cdns,tslch-ns = <4>;
};
};
The flash chip is connected in bus 0 and chipselect 0.
As anyone faced this issue earlier in uboot with cyclone V? can anyone guide
what needs to be done to make sf probe working?
Regards,
Santhosh
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