Tool/software: Linux
Hi
I want to control SPI serial flash that connected to spi0(cs0).
I try any possible method, and I referenced link(https://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/100/p/598118/2212223?tisearch=e2e-sitesearch&keymatch=dm38x%20spi0#pi317334=1
[ti81xx.dtsi]
aliases {
serial0 = &uart1;
....................
spi0 = &mcspi1;(or mcspi0 = &mcspi1;)
spi0 = &mcspi2;(or mcspi0 = &mcspi2;)
}
mcspi1: mcspi@30000 {
compatible = "ti,omap4-mcspi";
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "mcspi1";
ti,spi-num-cs = <4>;
reg = <0x30000 0x1000>;
interrupts = <65>;
dmas = <&edma 16 &edma 17
&edma 18 &edma 19
&edma 20 &edma 21
&edma 22 &edma 23>;
dma-names = "tx0", "rx0", "tx1", "rx1",
"tx2", "rx2", "tx3", "rx3";
status = "disabled";
};
mcspi2: mcspi@1A0000 {
compatible = "ti,omap4-mcspi";
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "mcspi2";
ti,spi-num-cs = <2>;
reg = <0x1A0000 0x1000>;
interrupts = <125>;
dmas = <&edma 42 &edma 43
&edma 44 &edma 45>;
dma-names = "tx0", "rx0",
"tx1", "rx1";
status = "disabled";
};
[dm38x-csk.dts]
&mcspi1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins>;
flash: m25p80@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "spansion,m25p80";
spi-max-frequency = <48000000>;
reg = <0>;
partition@0 {
label = "NOR.env1";
reg = <0x0A0000 0x010000>;
};
partition@1 {
label = "NOR.env2";
reg = <0x0B0000 0x010000>;
};
};
};
&mcspi2 { /* 180117 cavo */
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins>;
status = "okay";
};
Thanks.
