Can boot with custom overlay
Closed this issue · 3 comments
Hi there,
I'm kinda new around here and trying to build my own beagle from scratch to learn some basics. Currently, I'm dealing with device trees and trying to enable all uarts with a custom cape. I've successfully enabled all but except UART-5, beagle just stucks in u-boot whenever I try to enable this port.
Here is the moment that it hangs in u-boot:
U-Boot 2019.04 (May 31 2019 - 17:17:12 +0300)
CPU : AM335X-GP rev 2.1
I2C: ready
DRAM: 512 MiB
No match for driver 'omap_hsmmc'
No match for driver 'omap_hsmmc'
Some drivers were not found
Reset Source: Global external warm reset has occurred.
Reset Source: Global warm SW reset has occurred.
Reset Source: Power-on reset has occurred.
RTC 32KCLK Source: External.
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Loading Environment from EXT4... Card did not respond to voltage select!
Board: BeagleBone Black
not set. Validating first E-fuse MAC
BeagleBone Black:
Model: SeeedStudio BeagleBone Green:
BeagleBone: cape eeprom: i2c_probe: 0x54:
BeagleBone: cape eeprom: i2c_probe: 0x55:
BeagleBone: cape eeprom: i2c_probe: 0x56:
BeagleBone: cape eeprom: i2c_probe: 0x57:
Net: eth0: MII MODE
cpsw, usb_ether
Press SPACE to abort autoboot in 2 seconds
board_name=[BBG1] ...
Card did not respond to voltage select!
Card did not respond to voltage select!
Card did not respond to voltage select!
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1
Card did not respond to voltage select!
Card did not respond to voltage select!
switch to partitions #0, OK
mmc1(part 0) is current device
Scanning mmc 1:1...
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1
switch to partitions #0, OK
mmc1(part 0) is current device
gpio: pin 54 (gpio 54) value is 1
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
587 bytes read in 12 ms (46.9 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-4.19.31 ...
10375680 bytes read in 663 ms (14.9 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] ...
debug: unable to find [am335x-boneblack-uboot-univ.dtb] using [am335x-boneblack-uboot.dtb] instead ...
debug: [uboot_base_dtb_univ=am335x-boneblack-uboot.dtb] ...
uboot_overlays: [uboot_base_dtb=am335x-boneblack-uboot.dtb] ...
loading /boot/dtbs/4.19.31/am335x-bonegreen.dtb ...
59403 bytes read in 20 ms (2.8 MiB/s)
uboot_overlays: [fdt_buffer=0x60000] ...
uboot_overlays: loading /lib/firmware/M-BB-BBG-00A0.dtbo ...
277 bytes read in 445 ms (0 Bytes/s)
uboot_overlays: uboot loading of [/lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo] disabled by /boot/uEnv.txt [dis
able_uboot_overlay_emmc=1]...
uboot_overlays: uboot loading of [/lib/firmware/BB-ADC-00A0.dtbo] disabled by /boot/uEnv.txt [disable_uboot
_overlay_adc=1]...
uboot_overlays: [dtb_overlay=/lib/firmware/issd-test-00A0.dtbo] ...
uboot_overlays: loading /lib/firmware/issd-test-00A0.dtbo ...
2291 bytes read in 238 ms (8.8 KiB/s)
failed on fdt_overlay_apply(): FDT_ERR_NOTFOUND
uboot_overlays: cape universal disabled, external cape enabled or detected...
loading /boot/initrd.img-4.19.31 ...
6147279 bytes read in 399 ms (14.7 MiB/s)
debug: [console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4
rootwait coherent_pool=1M] ...
debug: [bootz 0x82000000 0x88080000:5dcccf 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...
USB0: Port not available.
link up on port 0, speed 100, full duplex
BOOTP broadcast 1
DHCP client bound to address 192.168.0.232 (371 ms)
Using cpsw device
TFTP from server 192.168.1.1; our IP address is 192.168.0.232; sending through gateway 192.168.0.1
Filename 'vmlinuz-4.19.31'.
Load address: 0x82000000
Loading: T T T T T T
Here is the uEnv.txt:
enable_uboot_overlays=1
cmdline=coherent_pool=1M
#dtb_overlay=/lib/firmware/BB-UART5-00A0.dtbo
dtb_overlay=/lib/firmware/uart-test-00A0.dtbo
enable_uboot_cape_universal=1
disable_uboot_overlay_emmc=1
disable_uboot_overlay_video=1
disable_uboot_overlay_audio=1
disable_uboot_overlay_adc=1
disable_uboot_overlay_addr0=1
disable_uboot_overlay_addr1=1
disable_uboot_overlay_addr2=1
disable_uboot_overlay_addr3=1
And lastly here's the overlay file:
/dts-v1/;
/plugin/;
/ {
compatible = "ti,beaglebone", "ti,beaglebone-black", "ti,beaglebone-green";
/* identification */
part-number = "uart-test";
version = "00A0";
/* state the resources this cape uses */
exclusive-use =
/* the pin header uses */
"P8.37", /* uart5_txd */
"P8.38", /* uart5_rxd */
/* the hardware ip uses */
"uart5";
fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
bb_uart5_pins: pinmux_bb_uart5_pins {
pinctrl-single,pins = <
/* the uart pins */
0x0C4 0x24 /* lcd_data9.uart5_rxd | MODE4 */
0x0C0 0x04 /* lcd_data8.uart5_txd | MODE4 */
>;
};
};
};
fragment@1 {
target = <&uart6>; /* really uart5 */
__overlay__ {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&bb_uart5_pins>;
};
};
};
Btw, Beagle works perfect with the BB-UART5 overlay from the filesystem and registers the /dev/ttyO6 successfully.
Any suggestion or correction?
Thanks!
uboot_overlays: [dtb_overlay=/lib/firmware/issd-test-00A0.dtbo] ...
uboot_overlays: loading /lib/firmware/issd-test-00A0.dtbo ...
2291 bytes read in 238 ms (8.8 KiB/s)
failed on fdt_overlay_apply(): FDT_ERR_NOTFOUND
fragment@1 {
target = <&uart6>; /* really uart5 */
__overlay__ {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&bb_uart5_pins>;
};
};
Wrong target 'label'.
https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-UART5-00A0.dts
Regards,
I started to hate myself.
I'm deeply sorry for stealing a couple of minutes from your life.
And thanks a lot.
@Bluepain no worries, so back in the 3.8.x days, your overlay would have worked, as the usarts where mis-numbered.. but this got fixed somewhere around 3.10.x, or so..