tegra_uart_write
tegra_uart_write(tup, tup->fcr_shadow, UART_FCR);
tegra_uart_write(tup, tup->fcr_shadow, UART_FCR);
tegra_uart_write(tup, tup->fcr_shadow, UART_FCR);
tegra_uart_write(tup, tup->ier_shadow, UART_IER);
tegra_uart_write(tup, tup->ier_shadow, UART_IER);
tegra_uart_write(tup, tup->ier_shadow | UART_IER_RDI, UART_IER);
tegra_uart_write(tup, 0, UART_IER);
tegra_uart_write(tup, lcr, UART_LCR);
tegra_uart_write(tup, tup->mcr_shadow, UART_MCR);
tegra_uart_write(tup, tup->mcr_shadow, UART_MCR);
tegra_uart_write(tup, tup->ier_shadow, UART_IER);
tegra_uart_write(tup, mcr, UART_MCR);
tegra_uart_write(tup, mcr, UART_MCR);
tegra_uart_write(tup, mcr, UART_MCR);
tegra_uart_write(tup, lcr, UART_LCR);
tegra_uart_write(tup, fcr, UART_FCR);
tegra_uart_write(tup, fcr, UART_FCR);
tegra_uart_write(tup, fcr, UART_FCR);
tegra_uart_write(tup, fcr, UART_FCR);
tegra_uart_write(tup, lcr, UART_LCR);
tegra_uart_write(tup, divisor & 0xFF, UART_TX);
tegra_uart_write(tup, ((divisor >> 8) & 0xFF), UART_IER);
tegra_uart_write(tup, lcr, UART_LCR);
tegra_uart_write(tup, ch, UART_TX);
tegra_uart_write(tup, tup->ier_shadow, UART_IER);
tegra_uart_write(tup, ier, UART_IER);
tegra_uart_write(tup, tup->ier_shadow, UART_IER);
tegra_uart_write(tup, ier, UART_IER);
tegra_uart_write(tup, tup->ier_shadow,
tegra_uart_write(tup, ier, UART_IER);
tegra_uart_write(tup, 0, UART_IER);