In all the ZynqMP boards dts files tx-buswidth is by default set to 1. Due
to this the framework only issues 1-1-1 write commands to the GQSPI driver.
But the GQSPI controller is capable of handling 1-4-4 write commands, so
updated the tx-buswidth to 4 in ZynqMP boards dts files. This would enable
the spi-nor framework to issue 1-4-4 write commands instead of 1-1-1. This
will increase the tx data transfer rate, as now the tx data will be
transferred on four lines instead on single line.
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/ad61199f55e5e00f29de6206d9d1872a52a7657e.1652193179.git.michal.simek@amd.com
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <108000000>;
};
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <108000000>;
};
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <108000000>;
};
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <40000000>;
};
#address-cells = <1>;
#size-cells = <1>;
reg = <0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <40000000>; /* 40MHz */
partition@0 {
compatible = "st,m25p80", "n25q256a", "jedec,spi-nor";
m25p,fast-read;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <166000000>;
#address-cells = <1>;
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* FIXME also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* FIXME also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* FIXME also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* FIXME also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* FIXME also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
partition@0 { /* for testing purpose */
#address-cells = <1>;
#size-cells = <1>;
reg = <0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* FIXME also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
};
#address-cells = <1>;
#size-cells = <1>;
reg = <0x0>;
- spi-tx-bus-width = <1>;
+ spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>; /* FIXME also DUAL configuration possible */
spi-max-frequency = <108000000>; /* Based on DC1 spec */
};