[U-Boot] i2c support for u-boot
Yannick Niane
yannick.niane at micromentis.com
Mon Mar 5 23:43:43 CET 2012
Thank you Heiko,
> yannick.niane at micromentis.com wrote:
>>
>> Hi All,
>> I'm trying to build u-boot with i2c support for a mba2440 board. U-
>> boot version is mba2440-uboot1.1.1.
>
> you use a very old version of u-boot, you should update to current
> version.
>
>> In mba2440.h config file i have selected the i2c commands :
>
> I cannot find such a config file in mainline ...
Actually i got that u-boot version from our vendor. They ported u-boot
to make it work with the mba2440 board(s3c2440 processor) they are
selling, but they didn't submit it as patch, i guess that's why i
have all files for that board and you don't in mainline.
I've downloaded u-boot-2011-12 and tried porting it to the mba 2440
hardware by adding configuration options and files but i had errors
when compiling with arm-linux-gcc cross compiler. I think i'll just
try to fix the missing symbols problem using the old u-boot version
Regards
Yannick
Yannick Niane ing.jr
Junior computer engineer
Tel.: 1.450.628.9292 2010, Dagenais Blvd. W.
1.888.628.9292 Laval (Québec)
Fax.: 1.450.628.0770 Canada H7L 5W2
Cell.: 1.514.220.9232
www.micromentis.com
Le 2-Mar-12 à 1:32 AM, Heiko Schocher a écrit :
> yannick.niane at micromentis.com,
>
> yannick.niane at micromentis.com wrote:
>>
>> Hi All,
>> I'm trying to build u-boot with i2c support for a mba2440 board. U-
>> boot version is mba2440-uboot1.1.1.
>
> you use a very old version of u-boot, you should update to current
> version.
>
>> In mba2440.h config file i have selected the i2c commands :
>
> I cannot find such a config file in mainline ...
>
>> #define CONFIG_COMMANDS \
>> (CONFIG_CMD_DFL | \
>> CFG_CMD_CACHE | \
>> CFG_CMD_NAND | \
>> CFG_CMD_PING | \
>> /*CFG_CMD_EEPROM |*/ \
>> CFG_CMD_I2C | \
>> /*CFG_CMD_USB |*/ \
>> CFG_CMD_REGINFO | \
>> CFG_CMD_DATE | \
>> CFG_CMD_FAT | \
>> CFG_CMD_MMC | \
>> CFG_CMD_NET | \
>> CFG_CMD_ELF)
>>
>> I get the following error when trying to build:
>>
>> UNDEF_SYM=`arm-linux-objdump -x lib_generic/libgeneric.a board/
>> mba2440/libmba2440.a cpu/arm920t/libarm920t.a lib_arm/libarm.a fs/
>> cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/
>> libjffs2.a fs/reiserfs/libreiserfs.a net/libnet.a disk/libdisk.a
>> rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/
>> libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a |
>> sed -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
>> arm-linux-ld -Bstatic -T /home/developer/Documents/Sensor/
>> CommunicationBoard/Devkit/kraken_bsp/bootloader/mba2440-uboot1.1.1-
>> v2.1_1G/board/mba2440/u-boot.lds -Ttext 0x30F00000
>> $UNDEF_SYM cpu/arm920t/start.o \
>> --start-group lib_generic/libgeneric.a board/mba2440/
>> libmba2440.a cpu/arm920t/libarm920t.a lib_arm/libarm.a fs/cramfs/
>> libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a
>> fs/reiserfs/libreiserfs.a net/libnet.a disk/libdisk.a rtc/librtc.a
>> dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/
>> libpost.a post/cpu/libcpu.a common/libcommon.a --no-warn-mismatch -
>> L /usr/local/arm/2.95.3/lib/gcc-lib/arm-linux/2.95.3 -lgcc --end-
>> group \
>> -Map u-boot.map -o u-boot
>> common/libcommon.a(cmd_i2c.o): dans la fonction << do_i2c_md >>:
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/cmd_i2c.c:
>> 188: undefined reference to `i2c_read'
>> common/libcommon.a(cmd_i2c.o): dans la fonction << do_i2c_mw >>:
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/cmd_i2c.c:
>> 287: undefined reference to `i2c_write'
>> common/libcommon.a(cmd_i2c.o): dans la fonction << do_i2c_crc >>:
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/cmd_i2c.c:
>> 369: undefined reference to `i2c_read'
>> common/libcommon.a(cmd_i2c.o): dans la fonction << mod_i2c_mem >>:
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/cmd_i2c.c:
>> 458: undefined reference to `i2c_read'
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/cmd_i2c.c:
>> 507: undefined reference to `i2c_write'
>> common/libcommon.a(cmd_i2c.o): dans la fonction << do_i2c_probe >>:
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/cmd_i2c.c:
>> 550: undefined reference to `i2c_probe'
>> common/libcommon.a(cmd_i2c.o): dans la fonction << do_i2c_loop >>:
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/cmd_i2c.c:
>> 631: undefined reference to `i2c_read'
>> common/libcommon.a(exports.o): dans la fonction << jumptable_init >>:
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/exports.c:
>> 35: undefined reference to `i2c_write'
>> /home/developer/Documents/Sensor/CommunicationBoard/Devkit/
>> kraken_bsp/bootloader/mba2440-uboot1.1.1-v2.1_1G/common/exports.c:
>> 35: undefined reference to `i2c_read'
>> make: *** [u-boot] Erreur 1
>
> As the error message says, some symbols are missing ... if you want to
> use i2c, you must enable through a CONFIG option, which i2c driver you
> want to use on your hardware. I cannot help you more here, because I
> do not know anything about your board.
>
>> I'm new to u-boot programing, am i missing something in the config
>> file?
>
> Yep!
>
> bye,
> Heiko
> --
> DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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