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26 views

Why u-boot starts so late after I give power

Running petalinux from sd card on ARM cortex A9 based zynq zc702 board. Zynq is an SoC with ARM and FPGA. Before the log messages (corresponding to u-boot) start printing, the screen (serail ...
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0answers
20 views

Bootable image with jffs2 file system

I have the following images: zImage around 1.1 MB image.ub: 1.1MB rootfs.jffs2 4.3 MB u-boot (this is the bootloader I am using) I understand that the image.ub is not including file system,and ...
0
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1answer
16 views

Disabling MMC in uboot

Following is the log message related to u-boot on Xilinx zynq platform: [Fri Apr 04 19:57:50.990 2014] U-Boot 2013.07 (Apr 04 2014 - 19:38:00) [Fri Apr 04 19:57:50.990 2014] [Fri Apr 04 ...
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1answer
25 views

Gem.e000b000 Waiting for PHY auto negotiation to complete… TIMEOUT?

The u-boot prints these before launching the kernel Gem.e000b000 Waiting for PHY auto negotiation to complete......... TIMEOUT ! BOOTP broadcast 1 BOOTP broadcast 2 BOOTP broadcast 3 BOOTP broadcast ...
0
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1answer
95 views

Bootloader fails to load linux kernel

I upgraded linux kernel from 2.6.32 to 3.0.7 but now bootloader isn't able to load the kernel image. Specifically, boot procedure freezes after: Starting kernel ... Uncompressing Linux... done, ...
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0answers
22 views

How to verify that my uImage is good?

I had a zImage file and I used mkimage tool to convert it into a uImage format. When I am booting this file, it is not been found by u-boot: Wrong Image Format for bootm command ERROR: can't get ...
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0answers
41 views

Wrong Image Format for bootm command ERROR: can't get kernel image!

I keep getting this error when booting linux on ARM cortex A9 based xilinx chip: U-Boot 2013.07 (Mar 31 2014 - 16:34:50) Memory: ECC disabled DRAM: 1 GiB MMC: zynq_sdhci: 0 SF: Detected N25Q128A ...
1
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1answer
30 views

How to convert a zImage into uImage for booting with u-boot

I have a zImage that I want to boot using u-boot. I think zImage is not understood by u-boot,as I am getting the following error after uboot executes: Wrong Image Format for bootm command ERROR: ...
0
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1answer
28 views

Trying to understand uboot image copying

The following is snippet from u-boot-xarm/include/configs/zynq_zc702.h "qspiboot=echo Copying Linux from QSPI flash to RAM...; \ cp 0xFC100000 0x8000 ${kernel_size}; \ ...
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0answers
35 views

Can't Install Debian On wm8505 Tablet

I have WM8505 sylvania brand tablet which is come with windows ce 6.0 installed on it. I am trying to install Abrasive's Debian on it but when i remove sd (after install) it reboots and shows nothing ...
1
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1answer
72 views

How to configure bootloader to boot the new kernel?

I succesfully upgraded linux kernel from 2.6.32.61 to 3.0.7 on BeableBoard-xM, following the steps below: download and untar kernel sources 3.0.7 from kernel.org copy kernel sources on /usr/src ...
2
votes
1answer
39 views

How to make sd card as default boot in uboot?

U-Boot 2013.07 (Nov 21 2013 - 18:12:40) Memory: ECC disabled DRAM: 1 GiB MMC: zynq_sdhci: 0 SF: Detected N25Q128A with page size 64 KiB, total 16 MiB In: serial Out: serial Err: serial Net: ...
3
votes
1answer
108 views

rootfs.jffs2 files system won't fit in mtd3

I have a files system that I am trying to put in flash memory mtd3 partition. I first boot using uboot and then do run sdboot to boot using SD card as shown below: U-Boot-PetaLinux> ...
1
vote
1answer
24 views

Memory display using md in u-boot

U-Boot-PetaLinux> md 0xc 0000000c: 2201c2a0 1a8441c5 90031018 52011010 ...".A.........R 0000001c: 0045c903 022c19ae 01077620 ca173dc0 ..E...,. v...=.. 0000002c: 0804e426 15dd0c12 201092c1 ...
0
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0answers
10 views

interpretation of coninfo in uboot

U-Boot-PetaLinux> con List of available devices: serial 80000003 SIO stdin stdout stderr ttyPS0 00000003 .IO how is the serial and ttyPS0 different ? And how do I interpret the complete ...
3
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1answer
133 views

Kernel booting stops right after “Uncompressing Linux…”

I'm trying to bring up an ARM-based board. I've got U-Boot working but can't seem to get the kernel to load. Most of the time it only goes as far as: Starting kernel ... Uncompressing Linux... A ...
1
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1answer
83 views

How to make a USB storage device undetectable in u-boot?

I need to do a test in an embedded system where I plug in the USB storage device and do "usb start" but the USB storage device is not detected. I have a working pendrive. How to make it undetectable ...
5
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1answer
78 views

Disabling TCP/IP during boot process in linux

I'm trying to install Linux on an FPGA board. The linux flavour is petalinux for Xilinx FPGA chips. The current Xilinx SoC has a Cortex A9 processor and a programmable hardware logic i.e FPGA. I ...
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0answers
17 views

Building a binary image from U-Boot tools

How to build binary image from u-boot tools, for a particular BlackFin processor in the Linux host machine?
0
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2answers
275 views

File system CRC check

I know that before running the kernel, u-boot (the boot loader) will check the kernel image CRC. Only if it is correct it will go further, else it will give a "Bad CRC" error. I want to do same thing ...
1
vote
2answers
149 views

How to flash U-Boot to a Devkit8500?

When I try running this: make CROSS_COMPILE=/root/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/arm-eabi- omap3devkit8000_config I get this error: make: *** No rule to make target ...
2
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0answers
253 views

Booting over the LAN using uboot

I am trying to boot my beaglebone over the LAN. I am able to download the Kernel uImage from the TFTP server. Here is what I did - U-Boot SPL 2011.09-00053-gb423c52 (Aug 10 2012 - 11:26:55) Texas ...
2
votes
1answer
2k views

u-boot disable DHCP requests with setenv

I am trying to disable the DHCP requests after the Kernel was loaded. Using freescale imx25 dev-board in standard config. In u-boot, I find two lines ip=dhcp: MX25 U-Boot > pri bootdelay=3 ...
4
votes
1answer
606 views

How can I tell what memory RAM address range is being used by uboot?

I am in uboot and was wondering, how could I tell what RAM address range is being used by uboot. uboot needs memory to run so it might be using some of the RAM. I want to avoid modifying those RAM ...
0
votes
1answer
347 views

Need reference on the usage of bist commands

I have an embedded device that has bist on it. During boot up I can stop in uboot and get into bist. When I do helphere I see a list of commands. I am however unable to use them because there is not ...
1
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0answers
322 views

Booting linux from SD Card on a Leopard board (Ti DM365)

I have a Leopard board with Ti DM365 processor. Problem is that I tried to flash the bootloader (uboot) to nand and landed up corrupting the NAND. Now I can't use the NAND to bring up the board. So I ...
5
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1answer
3k views

Can vmlinux be used instead of uImage?

I want to use an uncompressed kernel image and boot the BeagleBoard. Generally I use uImage to boot the kernel which is in compressed format. How do I use an uncompressed kernel image?
3
votes
2answers
436 views

Restricting memory area for linux kernel

I am running ltib Linux on P1022RDK (P1022 Core) platform. I have 512 MB = 0x20000000 memory. I want my Linux kernel to use the second half of the board memory (i.e from 256 MB to 512 MB) and want the ...
4
votes
3answers
5k views

Kernel panic - not syncing: No init found. While booting from U-Boot

Kernel mounted the root file system but can not find any init script. I'm sure that script exists in my ramdisk.img! I also checked out this and GE863-PRO3 U-BOOT Software User Guide 1VV0300777 Rev. ...