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phintegrator

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  1. 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: 0 Thanks in advance...
  2. 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...
  3. 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.
  4. 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.
  5. 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.
  6. 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.uboot But,it will be great if it is possible to put the rootfs in a USB storage device. (can you share an instructions) Thanks.
  7. 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.
  8. Can you share your current dts? Lets see if all the configuration needed are defined.
  9. 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 busy Im using armbian vanilla for my cb2. Thanks in advance.
  10. That was fast Igor. Thank you very much..
  11. 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
  12. 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.
  13. Hi Igor, Got it. But how about bad blocks management? Does it include some tool to scan and manage bad blocks? Thanks.
  14. 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. :)
  15. 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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