error kernel start

General Discussion
1

ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
** Invalid partition 2 **
** Invalid partition 3 **
** Invalid partition 4 **
** Invalid partition 5 **
** Invalid partition 6 **
** Invalid partition 7 **
starting USB…
USB0: Port not available.
cpsw Waiting for PHY auto negotiation to complete… TIMEOUT !
using musb-hdrc, OUT ep1out IN ep1in STATUS ep2in
MAC 34:08:e1:c8:db:9a
HOST MAC de:ad:be:af:00:00
RNDIS ready
The remote end did not respond in time.missing environment variable: pxeuuid
hi i have this problem in start kernel,user led are 4 all light,…

2

Please post your full serial log… what’s happening before this is important…

3 
Checking for: /uEnv.txt ...
Checking for: /boot.scr ...
Checking for: /boot/boot.scr ...
Checking for: /boot/uEnv.txt ...
gpio: pin 55 (gpio 55) value is 1
2107 bytes read in 13 ms (158.2 KiB/s)
Loaded environment from /boot/uEnv.txt
Checking if uname_r is set in /boot/uEnv.txt...
gpio: pin 56 (gpio 56) value is 1
Running uname_boot ...
loading /boot/vmlinuz-4.19.94-ti-r42 ...
10095592 bytes read in 652 ms (14.8 MiB/s)
debug: [enable_uboot_overlays=1] ...
debug: [enable_uboot_cape_universal=1] ...
debug: [uboot_base_dtb_univ=am335x-boneblack-uboot-univ.dtb] ...
uboot_overlays: [uboot_base_dtb=am335x-boneblack-uboot-univ.dtb] ...
uboot_overlays: Switching too: dtb=am335x-boneblack-uboot-univ.dtb ...
loading /boot/dtbs/4.19.94-ti-r42/am335x-boneblack-uboot-univ.dtb ...
162266 bytes read in 40 ms (3.9 MiB/s)
uboot_overlays: [fdt_buffer=0x60000] ...
uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo ...
867 bytes read in 310 ms (2 KiB/s)
uboot_overlays: loading /lib/firmware/at24-i2c1.dtbo ...
788 bytes read in 93 ms (7.8 KiB/s)
failed on fdt_overlay_apply(): FDT_ERR_NOTFOUND
uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo ...
1584 bytes read in 43 ms (35.2 KiB/s)
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
failed on fdt_overlay_apply(): FDT_ERR_BADMAGIC
base fdt does did not have a /__symbols__ node
make sure you've compiled with -@
uboot_overlays: loading /lib/firmware/BB-HDMI-TDA998x-00A0.dtbo ...
4915 bytes read in 223 ms (21.5 KiB/s)
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
failed on fdt_overlay_apply(): FDT_ERR_BADMAGIC
base fdt does did not have a /__symbols__ node
make sure you've compiled with -@
uboot_overlays: loading /lib/firmware/AM335X-PRU-RPROC-4-19-TI-00A0.dtbo ...
3801 bytes read in 31 ms (119.1 KiB/s)
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
failed on fdt_overlay_apply(): FDT_ERR_BADMAGIC
base fdt does did not have a /__symbols__ node
make sure you've compiled with -@
loading /boot/initrd.img-4.19.94-ti-r42 ...
6589689 bytes read in 431 ms (14.6 MiB/s)
debug: [console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet] ...
debug: [bootz 0x82000000 0x88080000:648cf9 88000000] ...
ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
** Invalid partition 2 **
** Invalid partition 3 **
** Invalid partition 4 **
** Invalid partition 5 **
** Invalid partition 6 **
** Invalid partition 7 **
starting USB...
4

Here’s your issue… this overlay at24-i2c1.dtbo is referencing something now in the main device-tree path, which broke boot…

Please share your *.dts version of that file and we can discuss what needs to be changed…

Regards,

5 
&am335x_pinmux {
 i2c1_pins: pinmux_i2c1_pins {
 pinctrl-single,pins = <
 0x158 (PIN_INPUT_PULLUP | MUX_MODE2)
 0x15c (PIN_INPUT_PULLUP | MUX_MODE2)
 >;
 };
...
};
…
&i2c1 {
 pinctrl-names = "default";
 pinctrl-0 = <&i2c1_pins>;
 clock-frequency = <400000>;
 status = "okay";
 at24@50 {
 compatible = "at,24c256";
 pagesize = <64>;
 reg = <0x50>;
 };
};
6

no i m sorry

/dts-v1/;
/plugin/;

/ {
	fragment@0 {
		target = <&am3353x_pinmux>;
		__overlay__ {
			i2c1_pins: pinmux_i2c1_pins {
				pinctrl-single,pins = <
				0x158 0x72
				0x15c 0x72
				>;
			};
		};
	};

	fragment@1 {
		target = <&i2c1>;
		__overlay__ {
			pinctrl-names = "default";
			pinctrl-0 = <&i2c1_pins>;
			clock-frequency = <400000>;
			status = "okay";
			at24@50 {
				compatible = "at,24c256";
				pagesize = <64>;
				reg = <0x50>;
			};
		};
	};
};
7

it’s an old syntax, but should be fine…

How did you build it?

Regards,