Adding i2c support in x-loader

RajeeSankar

Hi,

I added i2c support in x-loader by copying omap24xx_i2c.c into driver directory.

While compiling i2c,it gives error as:

arm-none-linux-gnueabi-ld: error: Source object /home/rajee/toolchain/arm-2009q1/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.3/libgcc.a(_divsi3.o) has EABI version 5, but target x-load has EABI version 0
arm-none-linux-gnueabi-ld: failed to merge target specific data of file /home/rajee/toolchain/arm-2009q1/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.3/libgcc.a(_divsi3.o)
arm-none-linux-gnueabi-ld: error: Source object /home/rajee/toolchain/arm-2009q1/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.3/libgcc.a(_dvmd_lnx.o) has EABI version 5, but target x-load has EABI version 0
arm-none-linux-gnueabi-ld: failed to merge target specific data of file /home/rajee/toolchain/arm-2009q1/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.3/libgcc.a(_dvmd_lnx.o)
/home/rajee/toolchain/arm-2009q1/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.3/libgcc.a(_dvmd_lnx.o): In function `__aeabi_ldiv0':
(.text+0x8): undefined reference to `raise'
make: *** [x-load] Error 1

I tried with different toolchains,but the same thing is happening.

Please help me on this.Thanks in advance.

Regards,

RajeeSankar

over 13 years ago

0 RajeeSankar over 13 years ago

Intellectual 270 points

Hi,

This issue got resolved by editing -lgcc as -lgcc_eh in Makefile.

Now my x-loader source compiled properly.But I can't read or write into i2c lines.

i2c_init also not working.I added the following lines to set i2c clocks.After that also i2c_init not working.

sr32(CM_FCLKEN1_CORE, 15, 3, 0x7);
sr32(CM_ICLKEN1_CORE, 15, 3, 0x7);

i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);

Please help me guys.Thanks.

Regards,

RajeeSankar

0 Kavitha bk over 13 years ago in reply to RajeeSankar

Prodigy 160 points

Hi RajeeSankar

I am also not able do i2c read and write from X-loader

and i2c_init fails with the below error

ERROR: Timeout while waiting for soft-reset to complete

Any idea is it because of timing or configuration the above error happened

Thanks

Kavitha

0 santosh vastrad over 13 years ago

Expert 2060 points

Hi Rajeesankar,

make[1]: Leaving directory `/home/ladstech/santosh_vastrad/source_code_android/android/x-loader/drivers'
UNDEF_SYM=`/home/ladstech/santosh_vastrad/source_code_android/android/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/arm-eabi-objdump -x board/omap3beagle/libomap3beagle.a cpu/omap3/libomap3.a lib/libarm.a fs/fat/libfat.a disk/libdisk.a drivers/libdrivers.a |sed -n -e 's/.*$__u_boot_cmd_.*$/-u\1/p'|sort|uniq`;\
        /home/ladstech/santosh_vastrad/source_code_android/android/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/arm-eabi-ld -Bstatic -T /home/ladstech/santosh_vastrad/source_code_android/android/x-loader/board/omap3beagle/x-load.lds -Ttext 0x40200800 $UNDEF_SYM cpu/omap3/start.o \
           --start-group board/omap3beagle/libomap3beagle.a cpu/omap3/libomap3.a lib/libarm.a fs/fat/libfat.a disk/libdisk.a drivers/libdrivers.a --end-group -L /home/ladstech/santosh_vastrad/source_code_android/android/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/../lib/gcc/arm-eabi/4.4.0 -lgcc_eh \
           -Map x-load.map -o x-load
/home/ladstech/santosh_vastrad/source_code_android/android/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/arm-eabi-ld: cannot find -lgcc_eh
make: *** [x-load] Error 1
l

I got above error, when added i2c configuration support in x-loader,

Even i tried by changing in Makefile, lgcc by lgcc_eh

still not compiling,

And you got succeeded by adding i2c support?

Regards,

santosh vastrad

0 santosh vastrad over 13 years ago in reply to Kavitha bk

Expert 2060 points

HI Kavitha,

May be base address of the I2C may be wrong?

According to which i2c bus you are using give base addreses!!!!!!!!

Regards ,

santosh vastrad

0 RajeeSankar over 13 years ago in reply to santosh vastrad

Intellectual 270 points

Hi Santhosh,

Try with different toolchain. I tried to compile by arm-none-linux-gnueabi toolchain.. u-boot build worked for me.

Regards,

RajeeSankar

0 santosh vastrad over 13 years ago in reply to RajeeSankar

Expert 2060 points

Hi Rajeeshankar,

No not success, tried with other toolchain also!!!!!!!!!!!!!!!

you implemented and succeeded in x-loader right!

But you said u-boot built,,,,,,,,,,,,,,, I didn't get?

Regards,

santosh vastrad

0 RajeeSankar over 13 years ago in reply to santosh vastrad

Intellectual 270 points

Hi Santosh,

Sorry sorry typo error. X-load compilation worked for me.

Regards,

RajeeSankar

0 santosh vastrad over 13 years ago in reply to RajeeSankar

Expert 2060 points

Hi,

Like this it came, when added lgcc_eh in makefile!!!!!!!!!!

Regards,

santosh vastrad

0 santosh vastrad over 13 years ago in reply to santosh vastrad

Expert 2060 points

Hi Rajeesankar,

The issue is solved,

We should remove division experssions from the i2c_function ,

then it will work okay

Regards,

santosh vastrad

0 RajeeSankar over 13 years ago in reply to santosh vastrad

Intellectual 270 points

Gud findings Santosh. congrats.

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Adding i2c support in x-loader