[U-Boot-Users] MIPS, little endian, supported cross tool versions?

[U-Boot-Users] MIPS, little endian, supported cross tool versions?

[Jörg Albert]

Hi all,

I'm trying to port U-Boot 1.0.0 to a new board containing a
MIPS 5Kf core. After adjusting the compiler flags / linker scripts
for little-endian, I run into these errors, compiling a RAM based version
first:

mipsel-uclibc-gcc -Wa,-gstabs -D__ASSEMBLY__ -g  -Os   -D__KERNEL__
-DTEXT_BASE=0x80100000 -I/opt/work/fw/bootloader/u-boot-1.0.0.work/include
-fno-builtin -ffreestanding -nostdinc -isystem
/opt/toolchains/toolchain_mipsel/lib/gcc-lib/mipsel-linux/3.3.1/include
-pipe  -DCONFIG_MIPS -D__MIPS__ -mips2 -EL -mabicalls -c -o start.o
/opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S
mipsel-uclibc-gcc: unrecognized option `-EL'
/opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S: Assembler
messages:
/opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S:242: Error:
Cannot branch to undefined symbol.
/opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S:247: Error:
Cannot branch to undefined symbol.
/opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S:259: Error:
Cannot branch to undefined symbol.

cross gcc version is 3.3.1, gas "2.1.4.90.0.5 20030722".

I couldn't find any hints on recommended tools for the MIPS port of U-Boot
in the docs.

Is my setup doomed to fail or may I get a working bootloader with some
reasonable effort?
(I may stick to my old bootloader as well)

TIA.

/J?rg
-- 
J?rg Albert, Software Engineer
ADVA AG Optical Networking

[U-Boot-Users] MIPS, little endian, supported cross tool versions?

[Wolfgang Denk]

In message <316F79677E35D411B196001083CFC2DA01A6D9D2@ganymed.bln.advaoptical.com> you wrote:
> 
> I'm trying to port U-Boot 1.0.0 to a new board containing a
> MIPS 5Kf core. After adjusting the compiler flags / linker scripts
> for little-endian, I run into these errors, compiling a RAM based
> version
> first:
> 
> mipsel-uclibc-gcc -Wa,-gstabs -D__ASSEMBLY__ -g  -Os   -D__KERNEL__
> -DTEXT_BASE=0x80100000
> -I/opt/work/fw/bootloader/u-boot-1.0.0.work/include
> -fno-builtin -ffreestanding -nostdinc -isystem
> /opt/toolchains/toolchain_mipsel/lib/gcc-lib/mipsel-linux/3.3.1/include
> -pipe  -DCONFIG_MIPS -D__MIPS__ -mips2 -EL -mabicalls -c -o start.o
> /opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S
> mipsel-uclibc-gcc: unrecognized option `-EL'

It seems obvious that your tools and or compiler options  are  broken
and/or misconfigured.

Where is this "-mips2 -EL" stuff coming from? You don't find this  in
U-Boot.

> Is my setup doomed to fail or may I get a working bootloader with some
> reasonable effort?

This depends on your definition of "reasonable" ;-)

> (I may stick to my old bootloader as well)

Obviously this is a tool problem first. I guess you will need to  fix
this  anyway,  or  you will run into the same problems later when you
want to compile your OS kernel and/or applications.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
If programming was easy, they wouldn't need something as  complicated
as a human being to do it, now would they?
                       - L. Wall & R. L. Schwartz, _Programming Perl_

[U-Boot-Users] MIPS, little endian, supported cross tool versions?

[Masami Komiya]

Hi J?rg,

I'm using U-BOOT on MIPS little-endian machines (R5000 and R4000)!!

U-BOOT's environment does not support mips little-endian,
but it is easy to change for little-endian.

Please look my small patch attached.

Also I recommend MIPS SDE as the toolchains introduced at following URL.

http://www.linux-mips.org/toolchain.html

Masami Komiya


J?rg Albert wrote:
> Hi all,
> 
> I'm trying to port U-Boot 1.0.0 to a new board containing a
> MIPS 5Kf core. After adjusting the compiler flags / linker scripts
> for little-endian, I run into these errors, compiling a RAM based version
> first:
> 
> mipsel-uclibc-gcc -Wa,-gstabs -D__ASSEMBLY__ -g  -Os   -D__KERNEL__
> -DTEXT_BASE=0x80100000 -I/opt/work/fw/bootloader/u-boot-1.0.0.work/include
> -fno-builtin -ffreestanding -nostdinc -isystem
> /opt/toolchains/toolchain_mipsel/lib/gcc-lib/mipsel-linux/3.3.1/include
> -pipe  -DCONFIG_MIPS -D__MIPS__ -mips2 -EL -mabicalls -c -o start.o
> /opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S
> mipsel-uclibc-gcc: unrecognized option `-EL'
> /opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S: Assembler
> messages:
> /opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S:242: Error:
> Cannot branch to undefined symbol.
> /opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S:247: Error:
> Cannot branch to undefined symbol.
> /opt/work/fw/bootloader/u-boot-1.0.0.work/cpu/mips/start.S:259: Error:
> Cannot branch to undefined symbol.
> 
> cross gcc version is 3.3.1, gas "2.1.4.90.0.5 20030722".
> 
> I couldn't find any hints on recommended tools for the MIPS port of U-Boot
> in the docs.
> 
> Is my setup doomed to fail or may I get a working bootloader with some
> reasonable effort?
> (I may stick to my old bootloader as well)
> 
> TIA.
> 
> /J?rg

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[U-Boot-Users] MIPS, little endian, supported cross tool versions?

[Friedrich, Lars]

> > After adjusting the compiler flags / linker scripts for little-endian
> Where is this "-mips2 -EL" stuff coming from?

He confessed already.
(-EndianLittle?)

scnr

Regards,
Lars Friedrich