USR2
usr2 = imx_uart_readl(sport, USR2);
imx_uart_writel(sport, USR2_ORE, USR2);
ret = (imx_uart_readl(sport, USR2) & USR2_TXDC) ? TIOCSER_TEMT : 0;
imx_uart_check_flood(sport, imx_uart_readl(sport, USR2));
usr2 = imx_uart_readl(sport, USR2);
imx_uart_writel(sport, USR2_BRCD, USR2);
imx_uart_writel(sport, USR2_ORE, USR2);
imx_uart_writel(sport, USR2_ORE, USR2);
if (!(imx_uart_readl(sport, USR2) & USR2_RDR))
status = imx_uart_readl(sport, USR2);
0, USEC_PER_SEC, false, sport, USR2);
0, USEC_PER_SEC, false, sport, USR2);
usr2 = imx_uart_readl(sport, USR2);
imx_uart_writel(sport, USR2_WAKE, USR2);
usr2 = imx_uart_readl(sport, USR2);
unsigned usr2 = imx_uart_readl(sport, USR2);
if (!(imx_uart_readl(sport, USR2) & USR2_RIIN))
P_SIGNUM(USR2);