On Thu, Mar 15, 2012 at 3:22 PM, Avinash H.M. <avinashhm@gmail.com> wrote:

Hi Guys ,

I am working on a samsung sp5v310 development kit.
I wanted to read a peripheral register (battery charger) in u-boot.
This device is interfaced on i2c0. I am working with the u-boot in
git://git.linaro.org/boot/u-boot-linaro-stable.git

I wanted to do i2c_read in the code, but as i understand the i2c
support is not there in u-boot for s5pv310 SOCs. Please confirm, if this
is correct or i am wrong.

If there is support to do i2c operations on s5pv310 SOCs, please point
me to the right file, where i can find i2c configurations for s5pv310 SOCs.

thanks,
- Avinash

PS:
1. There are no i2c macros in include/configs/smdkv310.h.
2. After adding,below macros to enable i2c support for smdkv310,

/* I1C */
#define CONFIG_HARD_I2C 1
#define CONFIG_SYS_I2C_SPEED 100000
#define CONFIG_SYS_I2C_SLAVE 1
#define CONFIG_SYS_I2C_BUS 0
#define CONFIG_SYS_I2C_BUS_SELECT 1
#define CONFIG_I2C_MULTI_BUS 1

i get below error:
/media/data/avinash/c.labs/
git.clones/bootloader/uboot/arch/arm/lib/board.c:189: undefined reference to `i2c_init'
common/libcommon.o: In function `stdio_init':
/media/data/avinash/c.labs/git.clones/bootloader/uboot/common/stdio.c:215: undefined reference to `i2c_init'

And there are no i2c related support inside the u-boot for samsung smdkv310.

avinash@avinash-desktop:/media/data/avinash/c.labs/git.clones/bootloader-new/uboot$ grep -inlr 'v310' . > v310.files.txt
avinash@avinash-desktop:/media/data/avinash/c.labs/git.clones/bootloader-new/uboot$ cat v310.files.txt | xargs grep -inr 'i2c_init'
Binary file ./uboot.PS matches
avinash@avinash-desktop:/media/data/avinash/c.labs/git.clones/bootloader-new/uboot$