HSI2C_CTL
i2c->regs + HSI2C_CTL);
i2c_ctl = readl(i2c->regs + HSI2C_CTL);
writel(i2c_ctl, i2c->regs + HSI2C_CTL);
i2c_ctl = readl(i2c->regs + HSI2C_CTL);
writel(i2c_ctl, i2c->regs + HSI2C_CTL);
val = readl(i2c->regs + HSI2C_CTL) | HSI2C_RXCHON;
writel(val, i2c->regs + HSI2C_CTL);
val = readl(i2c->regs + HSI2C_CTL) & ~HSI2C_RXCHON;
writel(val, i2c->regs + HSI2C_CTL);
i2c_ctl = readl(i2c->regs + HSI2C_CTL);
writel(i2c_ctl, i2c->regs + HSI2C_CTL);