[U-Boot] sram overflowed

Discussion:

Grant

2012-10-07 10:08:34 UTC

When I try to boot the 3.6 kernel on my Beaglebone it hangs at
"Starting kernel". I read that I should try the latest version of
u-boot:

git clone git://arago-project.org/git/projects/u-boot-am33x.git

But I get this when I try to make:

ld: u-boot-spl section `.data' will not fit in region `.sram'
ld: region `.sram' overflowed by 163 bytes
make[1]: *** [/root/u-boot-am33x/spl/u-boot-spl] Error 1
make[1]: Leaving directory `/root/u-boot-am33x/spl'
make: *** [spl/u-boot-spl.bin] Error 2

I read here that I should try removing config options like
CONFIG_SPL_YMODEM_SUPPORT:

https://github.com/kientzle/freebsd-beaglebone/issues/1#issuecomment-5953658

Can anyone tell me how to do that?

- Grant

Wolfgang Denk

2012-10-07 21:12:50 UTC

Permalink

Dear Grant,

Post by Grant
When I try to boot the 3.6 kernel on my Beaglebone it hangs at
"Starting kernel". I read that I should try the latest version of
git clone git://arago-project.org/git/projects/u-boot-am33x.git

This is definitely NOT what you want to use when somebody mentions
"latest version". This term always refers to top of tree in mainline
U-Boot, see http://git.denx.de/?p=u-boot.git;a=summary resp.
git://git.denx.de/u-boot.git

Best regards,

Wolfgang Denk

--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Genitiv ins Wasser, weil's Dativ ist!

Grant

2012-10-08 07:58:26 UTC

Permalink

Post by Wolfgang Denk

Post by Grant
git clone git://arago-project.org/git/projects/u-boot-am33x.git

Thank you for that. There is some outdated info here:

"Upstream U-Boot(the one you can download from www.denx.de)'s SPL
support doesn't include the AM33XX chip, which is the one used in the
Beaglebone. Progress is being done as of December 2011 to get it
included. For this reason, we'll use a patched U-Boot provided from
TI."

http://dev.gentoo.org/~armin76/arm/beaglebone/install.xml

I did:

git clone git://git.denx.de/u-boot.git
cd u-boot
make am335x_evm_config
make
cp MLO /boot
cp u-boot.img /boot

but I get the following at boot followed by the u-boot command line prompt:

Loaded environment from uEnv.txt
Importing environment from mmc ...
Loading file "/boot/uImage" from mmc device 0:2
** File not found /boot/uImage
ext2load - load binary file from a Ext2 filesystem

It seems like u-boot is missing the kernel commandline:

# cat /proc/cmdline
console=ttyO0,115200n8 ip=none root=/dev/mmcblk0p2 rw rootfstype=ext3 rootwait

I tried adding the following to uEnv.txt with no luck:

bootargs="console=ttyO0,115200n8 ip=none root=/dev/mmcblk0p2 rw
rootfstype=ext3 rootwait"

Can you see what I'm doing wrong?

- Grant

Tom Rini

2012-10-09 00:17:15 UTC

Permalink

Post by Grant

Post by Wolfgang Denk

Post by Grant
git clone git://arago-project.org/git/projects/u-boot-am33x.git

"Upstream U-Boot(the one you can download from www.denx.de)'s SPL
support doesn't include the AM33XX chip, which is the one used in the
Beaglebone. Progress is being done as of December 2011 to get it
included. For this reason, we'll use a patched U-Boot provided from
TI."

Well, December 2011 is a long time ago. As of v2012.10-rc1 am335x
platforms are rather well supported in mainline, especially the
beaglebone (which doesn't have NAND, the biggest gap between mainline
and the u-boot-am33x.git tree, at least as of Dec 2011). Using mainline
and the toolchain you likely have from TI, or from Linaro (if you use
v2012.10-rc3) or from ELDK 5.2 will produce functional binaries for your
platform.

--
Tom
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Grant

2012-10-09 06:23:20 UTC

Permalink

Post by Tom Rini

Post by Grant

Post by Wolfgang Denk

Post by Grant
git clone git://arago-project.org/git/projects/u-boot-am33x.git

Thank you, I was able to boot the Beaglebone with mainline u-boot by
moving uImage to / and adding this to uEnv.txt:

bootfile="/uImage"

As an aside, I noticed omap3_beagle in board.cfg, so I tried 'make
omap3_beagle_config && make' but the resultant MLO and u-boot.img did
not work at all. am335x_evm_config works fine, but I'm curious what
omap3_beagle_config is for if anyone knows.

- Grant

Tom Rini

2012-10-09 15:49:56 UTC

Post by Wolfgang Denk

Post by Grant
git clone git://arago-project.org/git/projects/u-boot-am33x.git

Thank you, I was able to boot the Beaglebone with mainline u-boot by
bootfile="/uImage"
As an aside, I noticed omap3_beagle in board.cfg, so I tried 'make
omap3_beagle_config && make' but the resultant MLO and u-boot.img did
not work at all. am335x_evm_config works fine, but I'm curious what
omap3_beagle_config is for if anyone knows.

omap3_beagle is for the beagleboard and beagleboard xM boards.
am335x_evm as you noticed is for the beaglebone (And am335x GP EVM and
am335x EVM SK).

Grant

2012-10-10 08:02:20 UTC

Permalink

Post by Tom Rini

Post by Grant
As an aside, I noticed omap3_beagle in board.cfg, so I tried 'make
omap3_beagle_config && make' but the resultant MLO and u-boot.img did
not work at all. am335x_evm_config works fine, but I'm curious what
omap3_beagle_config is for if anyone knows.

omap3_beagle is for the beagleboard and beagleboard xM boards.
am335x_evm as you noticed is for the beaglebone (And am335x GP EVM and
am335x EVM SK).

Got it, thank you Tom.

- Grant