ALTERA_JTAGUART_DATA_REG
writeb(ch, uartbase + ALTERA_JTAGUART_DATA_REG);
writeb(ch, uartbase + ALTERA_JTAGUART_DATA_REG);
while ((status = readl(port->membase + ALTERA_JTAGUART_DATA_REG)) &
writel(ch, port->membase + ALTERA_JTAGUART_DATA_REG),
writel(c, port->membase + ALTERA_JTAGUART_DATA_REG);
writel(c, port->membase + ALTERA_JTAGUART_DATA_REG);