Before commit
b50997e30f14f ("mtd: spi-nor: add support for DTR protocol"),
for all PP command, it only support 1-1-1 mode, no matter the tx setting
in dts. But after the upper commit, the logic change. It will choose
the best mode(fastest mode) which flash device and spi-nor host controller
both support.
qspi and fspi host controller do not support read 1-4-4 mode. so need to
set the tx to 1, let the common code finally select read 1-1-4 mode.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Fixes: b50997e30f14 ("mtd: spi-nor: add support for DTR protocol")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
#size-cells = <1>;
compatible = "jedec,spi-nor";
spi-max-frequency = <80000000>;
- spi-tx-bus-width = <4>;
+ spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
};
};
#size-cells = <1>;
compatible = "jedec,spi-nor";
spi-max-frequency = <80000000>;
- spi-tx-bus-width = <4>;
+ spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
};
};
#size-cells = <1>;
compatible = "jedec,spi-nor";
spi-max-frequency = <80000000>;
- spi-tx-bus-width = <4>;
+ spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
};
};
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <80000000>;
- spi-tx-bus-width = <4>;
+ spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
};
};
#size-cells = <1>;
compatible = "micron,n25q256a", "jedec,spi-nor";
spi-max-frequency = <29000000>;
+ spi-tx-bus-width = <1>;
+ spi-rx-bus-width = <4>;
};
};
#address-cells = <1>;
#size-cells = <1>;
reg = <0>;
- spi-tx-bus-width = <4>;
+ spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
m25p,fast-read;
spi-max-frequency = <50000000>;