phintegrator
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Posts posted by phintegrator
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Hi All,
I was able to figured out how to make it work.
Thanks to Henrik Nordström for a patch he made for the early version of uboot.
Reference :
http://lists.denx.de/pipermail/u-boot/2013-February/145808.html
Regards...
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Hello All,
I have a requirement that we need to enable the watchdog in uboot and kernel.
For Kernel I was able to enable it using the config below and using a "watchdog" utility.
CONFIG_WATCHDOG=y CONFIG_WATCHDOG_CORE=y # CONFIG_WATCHDOG_NOWAYOUT is not set # # Watchdog Device Drivers # # CONFIG_SOFT_WATCHDOG is not set # CONFIG_GPIO_WATCHDOG is not set # CONFIG_XILINX_WATCHDOG is not set # CONFIG_CADENCE_WATCHDOG is not set # CONFIG_DW_WATCHDOG is not set CONFIG_SUNXI_WATCHDOG=y # CONFIG_MAX63XX_WATCHDOG is not set # CONFIG_BCM7038_WDT is not set # CONFIG_MEN_A21_WDT is not set
Now i'm stuck how to implement it in uboot.
BTW, I'm using A20 board and a mainline uboot.
Hope anyone can help.
Thanks in advance.
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Hello Thomas,
You're correct, after some modification in sunxi-common-regulators.dtsi and sun7i-a20-cubieboard2.dts, I can now control PH3 to be use in my application.
Thanks.
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Hello Thomas,
Thanks sharing an idea.
I am now able to boot my A20 on a usb storage device through fel mode.
Will try to update this post with the instruction on how I was able to did that.
Best Regards.
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Hello Tomas,
At the minimum we need something like this, rootfs resides on the host PC.
sunxi-fel -v uboot u-boot-sunxi-with-spl.bin \ write 0x42000000 uImage \ write 0x43000000 sun7i-a20-cubietruck.dtb \ write 0x43100000 boot.scr \ write 0x43300000 rootfs.cpio.lzma.ubootBut,it will be great if it is possible to put the rootfs in a USB storage device. (can you share an instructions)
Thanks.
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Hi All,
I have a requirement to boot a whole a20 system over USB as discussed in the link below.
http://linux-sunxi.org/FEL/USBBoot#Boot_the_system_over_USB
It requires U-Boot + kernel + initramfs to do this.
Right now the only part that I succeed is booting on uboot, but not yet in kernel as well as initramfs (which is I dont have yet).
I cant find a good tutorial how to do this.
Hope someone can help.
Thanks in advance.
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Hi Guus,
I am having similar problem while trying to make use of eMMC on A20-Olinuxino-Lime2-eMMC (HW rev. E).
I get the same error but using Armbian 4.5 with mainline kernel 4.2.3 (see more details here).
Fortunately, Linux boot successfully from SD card MMC0 so I can change dtb and try different configurations.
I have also tried to make use of eMMC from Armbian 5.07 with legacy kernel 3.4.111 with no success as well.
Could you give me more information about the problem fix especially around 'GPIO pin to simulate an SD DETECT line'?
Best regards
Chris
Can you share your current dts? Lets see if all the configuration needed are defined.
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Hi,
Can anyone tell why I cant export PH3 as gpio?
It is the default "usb2_vbus-supply" for usb2 of allwinner A20.
In my application I need to control this "usb2_vbus-supply".
Example : exporting PH3
root@cubieboard2:~# echo 227 > /sys/class/gpio/export
-bash: echo: write error: Device or resource busyIm using armbian vanilla for my cb2.
Thanks in advance.
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That was fast Igor.
Thank you very much..
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Hello Igor,
Good day.
I just want to ask some question regarding cubieboard2 vanilla, hope you can find time to reply.
1. Which kernel source you are using ?
2. What configuration you use?
2. What are the patches you use?
Thanks in advance.
Best Regards,
Javer
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Hi all,
Does anyone ever tried to use an EMMC to an A20 boards?
Can you share your setup, uboot configs, emmc brand, etc. to make it work?
Thanks in advance.
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Hi Igor,
Got it.
But how about bad blocks management? Does it include some tool to scan and manage bad blocks?
Thanks.
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Hi,
I'm using armbian on my Cubieboard running from nand. I'm just curious how do you implement wear-leveling in this armbian on nand implementation on ext4?
Thanks in advance.
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Hi ,
Do you have any idea what the problem here?
I try recompiling this with Cubietruck_config
https://github.com/mmplayer/u-boot-sunxi/tree/sunxi-nand-a20
My build doesn't proceed, I'm stuck with this error.
arm-linux-gnueabi-ld.bfd: BFD (GNU Binutils for Ubuntu) 2.24 assertion fail ../../bfd/elf32-arm.c:7696 arm-linux-gnueabi-ld.bfd: BFD (GNU Binutils for Ubuntu) 2.24 assertion fail ../../bfd/elf32-arm.c:7696 arm-linux-gnueabi-ld.bfd: BFD (GNU Binutils for Ubuntu) 2.24 assertion fail ../../bfd/elf32-arm.c:7696 arm-linux-gnueabi-ld.bfd: error: required section '.rel.plt' not found in the linker script arm-linux-gnueabi-ld.bfd: final link failed: Invalid operation make: *** [u-boot] Error 1
Hope anyone can help.
Thanks.
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Hi Igor,
I am using nand-install script to boot my Cubieboard2 from nand.
However I need some modification in uboot so I need to recompile it by myself.
Can you share the sources and patches for this uboot that is running from nand?
Thanks in advance.
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Hi Everyone,
I am trying to compile armbian in my ubuntu 14.04 machine.
Can someone identify what is this error Im encountering?
Thanks in advcance.
Compiling u-boot... │ │──────────────────────────────────────────────────────────────────────────────│ │ .config:617:warning: override: reassigning to symbol OLD_SUNXI_KERNEL_COMPAT │ │ # │ │ # configuration written to .config │ │ # │ │ CHK include/config.h │ │ GEN include/autoconf.mk │ │ /bin/sh: 1: ccache: not found │ │ GEN include/autoconf.mk.dep │ │ /bin/sh: 1: ccache: not found │ │ make[1]: *** [include/autoconf.mk] Error 1 │ │ make[1]: *** Waiting for unfinished jobs.... │ │ make[1]: *** [include/autoconf.mk.dep] Error 1 │ │ GEN spl/include/autoconf.mk │ │ /bin/sh: 1: ccache: not found │ │ make[1]: *** [spl/include/autoconf.mk] Error 1 │ │ make: *** No rule to make target `include/config/auto.conf', needed by `incl[ o.k. ] Target directory [ /home/ionics-sw/Desktop/ARMBIAN/output/debs/ ] [ o.k. ] Building deb [ linux-u-boot-cubieboard2_4.83_armhf.deb ] [ error ] Building failed, check configuration. [ linux-u-boot-cubieboard2_4.83_armhf.deb deleted ]
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Can someone tell me how to enable PWM in cubieboard2.
I am using the latest ubuntu of armbian and vanilla kernel from this link.
http://www.armbian.com/cubieboard-2/
Looking at /sys/class, I cant find any pwm folder
root@cubieboard2:/sys/class# ls ata_device gpio iscsi_iface power_supply scsi_host ata_link graphics iscsi_session ppp spidev ata_port hwmon iscsi_transport pps spi_master backlight i2c-adapter leds ptp thermal bdi i2c-dev mdio_bus rc tty block ieee80211 mem regulator vc bluetooth input misc rfkill video4linux bsg iscsi_connection mmc_host rtc vtconsole devcoredump iscsi_endpoint net scsi_device watchdog dvb iscsi_host phy scsi_disk
Appreciate any help.
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Hello tkaiser,
For example using a cubieboard2 (with nand image), I enter fel mode as discussed here "http://linux-sunxi.org/FEL". From there I can do some fel commands like
> ./sunxi-fel version
and
> ./sunxi-fel read 0x43000000 0x20000 script.bin
So I am wondering if I can read it directly, maybe there is a way to write it directly using also fel tools.
What do you think?
Thanks.
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Hi Igor & tkaiser,
Thanks for you input.
I'm just wondering if there is a way to update directly the script.bin from nand using fel mode?
Do you have any idea?
Thanks.
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Hi All,
Can someone tell me how to update the script.bin in sd card and nand.
I am using a custom board, which has different usb pin config. So Im trying enable it in script.bin.
This is what I done so far.
For SD card
1. I delete /boot/script.bin
2. Write new config in /boot/script.bin
3. Reboot
Then the usb is still not detected, it seems that I did something wrong.
For nand:
1. I boot via sd card
2. mount /dev/nanda /mnt/nanda
3. rm /mnt/nanda/script.bin
4. cp new_script.bin /mnt/nanda/script.bin
5. umount /mnt/nanda
6. reboot
Again, nothing happens.
The usb is still not detected
Thanks in advance.
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Hello wildcat_paris,
Code below are snippet from script.fex of cubieboard.
Now I am just wondering what is the deference between [uart_force_debug] and [uart_para]?
Thanks in advance.
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HI,
Does anyone here encountered this error "libusb usb_bulk_send error -7" while reading in FEL mode?
./sunxi-fel read 0x42400000 0x82d0 boot1.header libusb usb_bulk_send error -7
Can you suggest how to fix this?
Thanks in advance.
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Can someone tell me the difference between [uart_force_debug] and [uart_para]?
[uart_para] uart_debug_port = 0 uart_debug_tx = port:PB22<2><1><default><default> uart_debug_rx = port:PB23<2><1><default><default> [uart_force_debug] uart_debug_port = 0 uart_debug_tx = port:PF02<4><1><default><default> uart_debug_rx = port:PF04<4><1><default><default>
Thanks..
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Hi Igor,
Yes, I did. Exact sequence below.
root@ubuntu1404-VirtualBox:/home/ubuntu1404/Desktop/LITE/u-boot# make clean root@ubuntu1404-VirtualBox:/home/ubuntu1404/Desktop/LITE/u-boot# make mrproper root@ubuntu1404-VirtualBox:/home/ubuntu1404/Desktop/LITE/u-boot# make CROSS_COMPILE=arm-linux-gnueabihf- Cubieboard2_defconfig root@ubuntu1404-VirtualBox:/home/ubuntu1404/Desktop/LITE/u-boot# make CROSS_COMPILE=arm-linux-gnueabihf-
I attached the log file.
Thanks.
Failed to set core voltage! Can't set CPU frequency
in Advanced users - Development
Posted
Hello All,
Does someone knows a possible reason why AXP 209 on some boards are failing?
That will result to an error message "Failed to set core voltage! Can't set CPU frequency".
After that we cannot probe the i2c bus address of the AXP209 anymore.
Hope someone can share some insights.
U-Boot SPL 2015.10-rc5-gc387326-dirty (May 19 2016 - 19:02:38) DRAM: 1024 MiB Failed to set core voltage! Can't set CPU frequency Card did not respond to voltage select! U-Boot 2015.10-rc5-gc387326-dirty (May 19 2016 - 19:02:38 +0800) Allwinner Techy CPU: Allwinner A20 (SUN7I) I2C: ready DRAM: 1 GiB MMC: Card did not respond to voltage select! SUNXI SD/MMC: 1, SUNXI SD/MMC: 0 (eMMC) In: serial Out: serial Err: serial SCSI: SUNXI SCSI INIT AHCI PHY power up failed. Net: No ethernet found. starting USB... USB0: USB EHCI 1.00 USB1: USB OHCI 1.0 USB2: USB EHCI 1.00 USB3: USB OHCI 1.0 scanning bus 0 for devices... 1 USB Device(s) found scanning bus 2 for devices... 2 USB Device(s) found Hit any key to stop autoboot: 0Thanks in advance...