uboot-devel — uboot development mailing list

[Uboot-devel] booting sunxi in falcon mode

[Bjørnar N. <bjo...@gm...>]

The last couple evenings I have been experimenting with booting Linux
from spl on
a opiz board (sun8i/allwinner H2+)

I am using FIT with kernel/fdt and status is I can boot this from
within uboot using:

mmc read $ramdisk_addr_r 0x1000 0x2000
bootm $ramdisk_addr_r

but:

After preparing fdt:
mmc read $ramdisk_addr_r 0x1000 0x2000
spl export fdt $ramdisk_addr_r
mmc write $ramdisk_addr_r 0x2000 0x100

..and then placing this fdt into the FIT, I confirm the fdt is
actually passed to the Linux kernel,
and that it has been prepared (correctly?) by "spl export", but in Linux I get:

ERROR: Failed to allocate 0x0000000000002000 bytes below 0x0000000000000000

So seems there is some issues with memory. The fdt has:

        memory {
                reg = <0x40000000 0x20000000>;
                device_type = "memory";
        };

One difference I see when booting Linux from uboot is the following extra line:

[    0.000000] OF: fdt: Ignoring memory range 0x40000000 - 0x48000000

Where from spl, I only see:

[    0.000000] OF: fdt: Machine model: Xunlong Orange Pi Zero Hero

I have also tried to prepare the fdt using the method described under
"Example with FDT: a3m071 board" in doc/README.falcon, but with no
success (and it does not add /memory at all)

After trying to read trough most of the code to figure out if the
board is doing something special
before handing over control to Linux from uboot, I cant really find
anything of interest.

Hope someone is able to guide me in the right direction!

-- 
Bj(/)rnar

[Uboot-devel] Read Multi images from USB drive and write on the flash

[Ravi L. <rl...@ya...>]

Hi, 

I am working on U-boot and looking the way to read multi images stored in usb drive and write those images on to the flash at specific addresses.

Thanks for help

Ravi 



      Unlimited freedom, unlimited storage. Get it now, on http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/

[Uboot-devel] uboot.zip

[ubaldo p. <ub...@ej...>]

Hi everyone,

uboot.zip is a linux server micro image able to run native from cd,
usb-drive or qemu emulated under windows, linux or macosx.

The initrd image is a minimal busybox with telnetd, httpd, ash, awk, plus
some needed stuff, if you like coding awk this is enough to run a mini
http server.

The initrd image includes kernel modules needed for scsi cdrom detecting,
usb storage device and for qemu to bridge network connection so that
running the image into qemu and redirecting the ports allows the mini http
server to be reached by windows/macosx/linux host and the image itself via
telnet.

The eja.img is a tiny framebuffer X server, with fluxbox as window
manager, a stripped gtk 1.2 version of mozilla firefox 1.5, php 5.2.1 with
sqlite (2) compiled in and remaining kernel modules for network cards,
audio, etc.

Into main zip directory there are 3 batch files for windows, linux and
macosx plus isolinux and syslinux needed for cd and usb boot.

If you need a mini web server to move a dinamic web site to cd or just a
portable 30Mb linux-firefox with network support maybe uboot.zip is a good
idea... ;)

Any idea, problem or question must be posted to this list.

Ciao ciao! :)