Hi Guys ,<br><br>I am working on a samsung sp5v310 development kit.<br>I wanted to read a peripheral register (battery charger) in u-boot.  <br>This device is interfaced on i2c0.  I am working with the u-boot in<br>git://<a href="http://git.linaro.org/boot/u-boot-linaro-stable.git">git.linaro.org/boot/u-boot-linaro-stable.git</a><br>
<br>I wanted to do i2c_read in the code, but as i understand the i2c<br>
support is not there in u-boot for s5pv310 SOCs.  Please confirm, if this<br>is correct or i am wrong.  <br><br>If there is support to do i2c operations on s5pv310 SOCs, please point<br>me to the right file, where i can find i2c configurations for s5pv310 SOCs.<br>

<br>thanks,<br>- Avinash<br><br>PS:<br>1.  There are no i2c macros  in include/configs/smdkv310.h.<br>2.  After adding,below macros to enable i2c support for smdkv310,<br><br>/* I1C  */<br>#define CONFIG_HARD_I2C                 1<br>

#define CONFIG_SYS_I2C_SPEED            100000<br>#define CONFIG_SYS_I2C_SLAVE            1<br>#define CONFIG_SYS_I2C_BUS              0<br>#define CONFIG_SYS_I2C_BUS_SELECT       1<br>#define CONFIG_I2C_MULTI_BUS            1<br>

<br>i get below error:<br>/media/data/avinash/c.labs/<div id=":37v">git.clones/bootloader/uboot/arch/arm/lib/board.c:189: undefined reference to `i2c_init&#39;<br>common/libcommon.o: In function `stdio_init&#39;:<br>/media/data/avinash/c.labs/git.clones/bootloader/uboot/common/stdio.c:215: undefined reference to `i2c_init&#39;<br>

<br>And there are no i2c related support inside the u-boot for samsung smdkv310.<br><br>avinash@avinash-desktop:/media/data/avinash/c.labs/git.clones/bootloader-new/uboot$ grep -inlr &#39;v310&#39; . &gt; v310.files.txt<br>

avinash@avinash-desktop:/media/data/avinash/c.labs/git.clones/bootloader-new/uboot$ cat v310.files.txt | xargs grep -inr &#39;i2c_init&#39; <br>Binary file ./uboot.PS matches<br>avinash@avinash-desktop:/media/data/avinash/c.labs/git.clones/bootloader-new/uboot$ </div>