redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

MLK-20440 dts: ecspi: Add ecspi and its slave dts files for imx6ul 

For ECSPI test, add these two dts files.
imx6ul-14x14-evk-ecspi.dts: enable ecspi4 function. Because ethernet2
uses the same pins with ecspi4, so disable fec1/fec2.
imx6ul-14x14-evk-ecspi-slave.dts: Add "spi-slave" attribute to enable
slave mode.

Wire Connection:
J1704:
	3 - SCS
	4 - MOSI
	5 - MISO
	6 - SCK
	7 - GND

Modify "Makefile" to build these two dts files.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
pull/10/head
Clark Wang 2018-11-21 19:13:47 +08:00
parent e98406a16d
commit 6535f44c58
3 changed files with 71 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/boot/dts/Makefile
View File

@ -540,6 +540,8 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
imx6ul-14x14-evk-btwifi-oob.dtb \
imx6ul-14x14-evk-csi.dtb \
imx6ul-14x14-evk-emmc.dtb \
imx6ul-14x14-evk-ecspi.dtb \
imx6ul-14x14-evk-ecspi-slave.dtb \
imx6ul-14x14-evk-gpmi-weim.dtb \
imx6ul-14x14-evk-usb-certi.dtb \
imx6ul-geam.dtb \

21
arch/arm/boot/dts/imx6ul-14x14-evk-ecspi-slave.dts 100644
View File

@ -0,0 +1,21 @@
/*
* Copyright (C) 2018 NXP
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* DTS file for ECSPI Slave Certification at i.mx6ul 14x14 evk board.
* NOTE: Because Ethernet2 use the same pins with ecspi4, so disable
* fec1/fec2 for ECSPI4 test.
*/
#include "imx6ul-14x14-evk-ecspi.dts"
/delete-node/&spidev0;
&ecspi4 {
spi-slave;
};

48
arch/arm/boot/dts/imx6ul-14x14-evk-ecspi.dts 100644
View File

@ -0,0 +1,48 @@
/*
* Copyright (C) 2018 NXP
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* DTS file for ECSPI Certification at i.mx6ul 14x14 evk board.
* NOTE: Because Ethernet2 use the same pins with ecspi4, so disable
* fec1/fec2 for ECSPI4 test.
*/
#include "imx6ul-14x14-evk.dts"
&iomuxc {
pinctrl_ecspi4: ecspi4grp {
fsl,pins = <
MX6UL_PAD_ENET2_TX_DATA1__ECSPI4_SCLK 0x70a1
MX6UL_PAD_ENET2_TX_EN__ECSPI4_MOSI 0x70a1
MX6UL_PAD_ENET2_TX_CLK__ECSPI4_MISO 0x70a1
MX6UL_PAD_ENET2_RX_ER__ECSPI4_SS0 0x70a1
>;
};
};
&ecspi4 {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi4>;
status = "okay";
spidev0: spi@0 {
reg = <0>;
compatible = "rohm,dh2228fv";
spi-max-frequency = <20000000>;
};
};
&fec1 {
status = "disabled";
};
&fec2 {
status = "disabled";
};