ar933x_uart_read
rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG);
status = ar933x_uart_read(up, AR933X_UART_CS_REG);
status = ar933x_uart_read(up, AR933X_UART_DATA_REG);
rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG);
rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG);
status = ar933x_uart_read(up, AR933X_UART_CS_REG);
status = ar933x_uart_read(up, AR933X_UART_INT_REG);
status &= ar933x_uart_read(up, AR933X_UART_INT_EN_REG);
imr = ar933x_uart_read(up, AR933X_UART_INT_EN_REG);
rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG);
imr = ar933x_uart_read(up, AR933X_UART_INT_EN_REG);
while (!(ar933x_uart_read(up, AR933X_UART_DATA_REG) & AR933X_UART_DATA_TX_CSR))
while (!(ar933x_uart_read(up, AR933X_UART_DATA_REG) & AR933X_UART_DATA_TX_CSR))
status = ar933x_uart_read(up, AR933X_UART_DATA_REG);
int_en = ar933x_uart_read(up, AR933X_UART_INT_EN_REG);
t = ar933x_uart_read(up, offset);