HSI2C_CONF
t_ftl_cycle = (readl(i2c->regs + HSI2C_CONF) >> 16) & 0x7;
u32 i2c_conf = readl(i2c->regs + HSI2C_CONF);
writel(i2c_conf | HSI2C_AUTO_MODE, i2c->regs + HSI2C_CONF);
val = readl(i2c->regs + HSI2C_CONF) & ~HSI2C_AUTO_MODE;
writel(val, i2c->regs + HSI2C_CONF);
val = readl(i2c->regs + HSI2C_CONF) | HSI2C_AUTO_MODE;
writel(val, i2c->regs + HSI2C_CONF);