[U-Boot] PPC4XX Custom Board - Failing to read I2C
Stefan Roese
sr at denx.de
Wed Apr 3 19:08:20 CEST 2013
On 03.04.2013 18:15, txcotrader wrote:
> Thanks Stefan, great suggestion, I failed to copy those configurations into
> my original message.
>
> /*-----------------------------------------------------------------------
> * DDR SDRAM
> *----------------------------------------------------------------------*/
> #if !defined(CONFIG_NAND_U_BOOT)
> #define CONFIG_SPD_EEPROM 1 /* Use SPD
> EEPROM for setup */
> #define CONFIG_DDR_ECC 1 /* with ECC
> support */
>
> /* SPD i2c spd addresses */
> #define SPD_EEPROM_ADDRESS {IIC0_DIMM0_ADDR}
> #define IIC0_DIMM0_ADDR 0x50
> #define IIC0_DIMM1_ADDR 0x52
>
> I am questioning my bus configurations... I haven't hooked up the scope yet,
> but I don't think data is hitting the bus. I don't see any areas to
> configure the I2C bus besides the board configuration file. Any suggestions?
Are you sure that 0x50 is correct? I suggest you try this instead:
#define SPD_EEPROM_ADDRESS { IIC0_DIMM0_ADDR, IIC0_DIMM1_ADDR }
Thanks,
Stefan
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