Turns out the whole thing doesn’t work so far. My hardware seems to be fine (atleast it has not exploded so far, didn’t have the chance to properly check function with a oscilloscope yet), but there are several problems. I was hoping you could maybe help me with those aswell. (I’m sorry if i should have started a new thread for those)
I followed this guide: Patching Kernel in OpenEmbedded to add the mentioned camera driver to the toradex_4.9-2.3.x-imx-next kernel and modify the imx6ull-colibri-eval-v3.dtsi file of the devicetree to include the camera and its pin muxing, and turned off some PWMs and UARTs to avoid sharing pins (see below) (the pin muxing was based on toradex documentation, the cameras entry is based on an entry from a phytec (camera module manufacturer) devicetree, the csi part was done from examples). Then I took this image https://docs.toradex.com/106394-colibri-imx6ull-linux-lxde-image-tezi.tar and replaced the respective files for the eval board with the new ones and flashed it with toradex easy installer.
The driver seems to work, it is blocking 0x48 on I2C0 (or I2C1 in devicetree), which is where the camera should be. The devicetree seems to be the cause of problems though: dmseg | grep CLK finds an error message, that “imx6ul-pinctrl 20e0000.iomux: pin MX6UL_PAD_CSI_PIXCLK already requested by 20e0000.iomux; cannot claim for 0-0048” and “imx6ul-pinctrl 20e0000.iomux: could not request pin 118 (MX6UL_PAD_CSI_PIXCLK) from group csi1grp on device 20e0000.iomux”
Any idea, what could be wrong / causing this?
Also the camera driver is returning “mt9p031 0-0048: Error applying setting, reversing things back” and “mt9p031: probe of 0-0048 failed with error -22” (seems to mean invalid value)
changed imx6ull-colibri-eval-v3.dtsi:
/*
* Copyright 2017 Toradex AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <dt-bindings/input/input.h>
/ {
chosen {
bootargs = "console=ttymxc0,115200";
};
clocks {
/* fixed crystal dedicated to mcp251x */
clk16m: clk@1 {
compatible = "fixed-clock";
reg=<1>;
#clock-cells = <0>;
clock-frequency = <16000000>;
clock-output-names = "clk16m";
};
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_snvs_gpiokeys>;
power {
label = "Wake-Up";
gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_WAKEUP>;
debounce-interval = <10>;
gpio-key,wakeup;
};
};
extcon_usbc_det: usbc_det {
compatible = "linux,extcon-usb-gpio";
debounce = <25>;
id-gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_snvs_usbc_det>;
};
reg_3v3: regulator-3v3 {
compatible = "regulator-fixed";
regulator-name = "3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
reg_5v0: regulator-5v0 {
compatible = "regulator-fixed";
regulator-name = "5V";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
};
reg_usbh_vbus: regulator-usbh-vbus {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usbh1_reg>;
regulator-name = "VCC_USB[1-4]";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&gpio1 2 GPIO_ACTIVE_LOW>;
vin-supply = <®_5v0>;
};
};
&bl {
brightness-levels = <0 4 8 16 32 64 128 255>;
default-brightness-level = <6>;
pwms = <&pwm4 0 5000000 1>;
status = "okay";
};
&adc1 {
status = "okay";
};
&pxp {
status = "okay";
};
&ecspi1 {
status = "okay";
mcp251x0: mcp251x@0 {
compatible = "microchip,mcp2515";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_can_int>;
reg = <0>;
clocks = <&clk16m>;
interrupt-parent = <&gpio2>;
interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
spi-max-frequency = <10000000>;
status = "okay";
};
spidev0: spidev@0 {
compatible = "toradex,evalspi";
reg = <0>;
spi-max-frequency = <23000000>;
status = "disabled";
};
};
#if 0
&flexcan1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan1>;
status = "okay";
};
&flexcan2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan2>;
status = "okay";
};
#endif
&i2c1 {
pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c1>;
pinctrl-1 = <&pinctrl_i2c1_gpio>;
sda-gpios = <&gpio1 29 GPIO_ACTIVE_LOW>;
scl-gpios = <&gpio1 28 GPIO_ACTIVE_LOW>;
status = "okay";
/* the PCAPs use SODIMM 28/30, also used for PWM<B>, PWM<C>, aka pwm5, pwm6.
so if you enable one of the PCAP controllers disable the pwms */
/* Atmel maxtouch controller */
atmel_mxt_ts: atmel_mxt_ts@4a {
compatible = "atmel,maxtouch";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpiotouch>;
reg = <0x4a>;
interrupt-parent = <&gpio4>;
interrupts = <16 IRQ_TYPE_EDGE_FALLING>; /* SODIMM 28 */
reset-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; /* SODIMM 30 */
status = "disabled";
};
touch: touchrevf0710a@10 {
compatible = "touchrevolution,fusion-f0710a";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpiotouch>;
reg = <0x10>;
/* SODIMM 28, Pen down interrupt */
gpios = <&gpio4 16 GPIO_ACTIVE_HIGH
/* SODIMM 30, Reset interrupt */
&gpio2 5 GPIO_ACTIVE_LOW
>;
status = "disabled";
};
/* M41T0M6 real time clock on carrier board */
rtc: m41t0m6@68 {
compatible = "st,m41t0";
reg = <0x68>;
};
/* MT9P006 (MT9P031 with color filter) camera module on adapter board */
mt9p031@48 {
/*aptina, mt9p006?*/
compatible = "aptina,mt9p031";
/*same as I2C address, got error when changed*/
reg = <0x48>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_csi1>;
reset-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>;
status = "okay";
clocks = <&clks IMX6UL_CLK_CSI>;
clock-names = "csi_mclk";
assigned-clocks =
<&clks IMX6UL_CLK_CSI_SEL>,
<&clks IMX6UL_CLK_CSI>;
assigned-clock-parents =
<&clks IMX6UL_CLK_PLL2_PFD2>;
assigned-clock-rates =
<0>, <50000000>;
port {
mt9p031_1: endpoint {
input-clock-frequency = <50000000>;
pixel-clock-frequency = <50000000>;
pclk-sample = <0>;
remote-endpoint = <&csi1_ep>;
bus-width = <8>;
hsync-active = <1>;
vsync-active = <1>;
};
};
};
};
&lcdif {
display = <&display0>;
status = "okay";
display0: lcd-display {
bits-per-pixel = <16>;
bus-width = <18>;
display-timings {
native-mode = <&timing_vga>;
/* Standard VGA timing */
timing_vga: 640x480 {
clock-frequency = <25175000>;
hactive = <640>;
vactive = <480>;
hback-porch = <40>;
hfront-porch = <24>;
vback-porch = <32>;
vfront-porch = <11>;
hsync-len = <96>;
vsync-len = <2>;
de-active = <1>;
hsync-active = <0>;
vsync-active = <0>;
pixelclk-active = <0>;
};
/* WVGA Timing, e.g. EDT ET070080DH6 */
timing_wvga: 800x480 {
clock-frequency = <33260000>;
hactive = <800>;
vactive = <480>;
hback-porch = <216>;
hfront-porch = <40>;
vback-porch = <35>;
vfront-porch = <10>;
hsync-len = <128>;
vsync-len = <2>;
de-active = <1>;
hsync-active = <0>;
vsync-active = <0>;
pixelclk-active = <0>;
};
/* WVGA Timing, TouchRevolution Fusion 7" */
timing_wvga2: 800x480pixclkact {
clock-frequency = <33260000>;
hactive = <800>;
vactive = <480>;
hback-porch = <216>;
hfront-porch = <40>;
vback-porch = <35>;
vfront-porch = <10>;
hsync-len = <128>;
vsync-len = <2>;
de-active = <1>;
hsync-active = <0>;
vsync-active = <0>;
pixelclk-active = <1>;
};
/* Standard SVGA timing */
timing_svga: 800x600 {
clock-frequency = <40000000>;
hactive = <800>;
vactive = <600>;
hback-porch = <88>;
hfront-porch = <40>;
vback-porch = <23>;
vfront-porch = <1>;
hsync-len = <128>;
vsync-len = <4>;
de-active = <1>;
hsync-active = <1>;
vsync-active = <1>;
pixelclk-active = <0>;
};
/* TouchRevolution Fusion 10"/CLAA101NC05 10.1 inch */
timing_wsvga: 1024x600 {
clock-frequency = <48000000>;
hactive = <1024>;
vactive = <600>;
hback-porch = <104>;
hfront-porch = <43>;
vback-porch = <24>;
vfront-porch = <20>;
hsync-len = <5>;
vsync-len = <5>;
de-active = <1>;
hsync-active = <0>;
vsync-active = <0>;
pixelclk-active = <0>;
};
/* Standard XGA timing */
timing_xga: 1024x768 {
clock-frequency = <65000000>;
hactive = <1024>;
vactive = <768>;
hback-porch = <160>;
hfront-porch = <24>;
vback-porch = <29>;
vfront-porch = <3>;
hsync-len = <136>;
vsync-len = <6>;
de-active = <1>;
hsync-active = <0>;
vsync-active = <0>;
pixelclk-active = <0>;
};
};
};
};
/* the PCAPs use SODIMM 28/30, also used for PWM<B>, PWM<C>, aka pwm5, pwm6.
so if you enable one of the PCAP controllers disable the pwms */
/* PWM <A> */
&pwm4 {
status = "disabled";
};
/* PWM <B> */
&pwm5 {
status = "disabled";
};
/* PWM <C> */
&pwm6 {
status = "disabled";
};
/* PWM <D> */
&pwm7 {
status = "disabled";
};
&uart1 {
status = "disabled";
};
&uart2 {
status = "disabled";
};
&uart5 {
status = "disabled";
};
&usbotg1 {
extcon = <&extcon_usbc_det &extcon_usbc_det>;
vbus-supply = <®_usbh_vbus>;
status = "okay";
};
&usbotg2 {
vbus-supply = <®_usbh_vbus>;
status = "okay";
};
/* The define SD_1_8 allows to use the SD interface at a higher speed mode
* if the card supports it. For this the signaling voltage is switched from
* 3.3V to 1.8V under the usdhc1's drivers control.
*/
/* #define SD_1_8 */
&usdhc1 {
#ifdef SD_1_8
pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_snvs_cd_usdhc1>;
pinctrl-1 = <&pinctrl_usdhc1_100mhz &pinctrl_snvs_cd_usdhc1>;
pinctrl-2 = <&pinctrl_usdhc1_200mhz &pinctrl_snvs_cd_usdhc1>;
pinctrl-3 = <&pinctrl_usdhc1 &pinctrl_snvs_cd_usdhc1_sleep>;
vqmmc-supply = <®_sd1_vmmc>;
#else
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_snvs_cd_usdhc1>;
no-1-8-v;
#endif
cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
disable-wp;
enable-sdio-wakeup;
keep-power-in-suspend;
status = "okay";
vmmc-supply = <®_3v3>;
};
&iomuxc {
imx6ull-eval-v3 {
pinctrl_gpiotouch: touchgpios {
fsl,pins = <
MX6UL_PAD_NAND_DQS__GPIO4_IO16 0x74
MX6UL_PAD_ENET1_TX_EN__GPIO2_IO05 0x14
>;
};
/*Reset-GPIO for camera*/
/*MX6UL_PAD_CSI_DATA07__GPIO4_IO28 defined in gpio4-grp in mainline imx6ull-colibri.dtsi*/
pinctrl_gpio4: gpio4-grp {
fsl,pins = <
MX6UL_PAD_CSI_DATA07__GPIO4_IO28 0x10b0 /* SODIMM 65 */
>;
};
pinctrl_csi1: csi1grp {
fsl,pins = <
MX6UL_PAD_CSI_PIXCLK__CSI_PIXCLK 0x000010B0 /* SODIMM 96 */
MX6UL_PAD_CSI_MCLK__CSI_MCLK 0x000010B0 /* SODIMM 75 */
MX6UL_PAD_GPIO1_IO08__CSI_VSYNC 0x000010B0 /* SODIMM 4 */
MX6UL_PAD_GPIO1_IO09__CSI_HSYNC 0x000010B0 /* SODIMM 2 */
MX6UL_PAD_LCD_DATA18__CSI_DATA10 0x000010B0 /* SODIMM 29 */
MX6UL_PAD_LCD_DATA19__CSI_DATA11 0x000010B0 /* SODIMM 37 */
MX6UL_PAD_UART1_CTS_B__CSI_DATA04 0x000010B0 /* SODIMM 25 */
MX6UL_PAD_UART1_RTS_B__CSI_DATA05 0x000010B0 /* SODIMM 27 */
MX6UL_PAD_UART1_RX_DATA__CSI_DATA03 0x000010B0 /* SODIMM 35 */
MX6UL_PAD_UART1_TX_DATA__CSI_DATA02 0x000010B0 /* SODIMM 33 */
MX6UL_PAD_UART2_CTS_B__CSI_DATA08 0x000010B0 /* SODIMM 32 */
MX6UL_PAD_UART2_RTS_B__CSI_DATA09 0x000010B0 /* SODIMM 34 */
MX6UL_PAD_UART2_RX_DATA__CSI_DATA07 0x000010B0 /* SODIMM 38 */
MX6UL_PAD_UART2_TX_DATA__CSI_DATA06 0x000010B0 /* SODIMM 36 */
MX6UL_PAD_UART3_RX_DATA__CSI_DATA00 0x000010B0 /* SODIMM 77 */
MX6UL_PAD_UART3_TX_DATA__CSI_DATA01 0x000010B0 /* SODIMM 135 */
>;
};
};
};
&csi {
status = "okay";
port {
csi1_ep: endpoint {
remote-endpoint = <&mt9p031_1>;
};
};
};
Will hopefully be finally able to test the whole thing today!