[U-Boot] [PATCH] board/common: Add support for QIXIS read/write using i2c

[Andy Fleming]

>
> +u8 qixis_read_i2c(unsigned int reg)
> +{
> +       return i2c_reg_read(CONFIG_SYS_I2C_FPGA_ADDR, reg);
> +}
> +
> +void qixis_write_i2c(unsigned int reg, u8 value)
> +{
> +       u8 val = value;
> +       i2c_reg_write(CONFIG_SYS_I2C_FPGA_ADDR, reg, val);
> +}
> +



This breaks ALL other boards with QIXIS, as they don't all define
CONFIG_SYS_I2C_FPGA_ADDR.