on imx93 with linux 6.1.22 ( imx93 rev A0) , I want to use spi1 to access custom component.
I have declared it on dts, but no respond from component
with dtb without SPI1, using GPIO to emulate SPI no problem to access my compoent.
Is something missing ? I have with and without dma on SPI , but still no answer.
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2022 NXP
*/
#include "myboard.dts"
&lpspi1 {
fsl,spi-num-chipselects = <1>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_lpspi1>;
status = "okay";
spidev0: spi@0 {
reg = <0>;
compatible = "lwn,bk4";
spi-max-frequency = <1000000>;
// spi-max-frequency = <20000000>;
};
};
&iomuxc {
pinctrl_lpspi1: lpspi1grp {
fsl,pins = <
MX93_PAD_SAI1_RXD0__LPSPI1_SOUT 0x0000051E
MX93_PAD_SAI1_TXC__LPSPI1_SIN 0x0000051E
MX93_PAD_SAI1_TXD0__LPSPI1_SCK 0x0000051E
MX93_PAD_SAI1_TXFS__LPSPI1_PCS0 0x0000051E
>;
};
};
And add imx93.dtsi
lpspi1: spi@44360000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,imx93-spi", "fsl,imx7ulp-spi";
reg = <0x44360000 0x10000>;
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX93_CLK_LPSPI1_GATE>,
<&clk IMX93_CLK_BUS_AON>;
clock-names = "per", "ipg";
dmas = <&edma1 11 0 0>, <&edma1 12 0 1>;
dma-names = "tx","rx";
status = "disabled";
};
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