diff options
Diffstat (limited to 'src/mainboard/emulation/qemu-armv7/uart.c')
-rw-r--r-- | src/mainboard/emulation/qemu-armv7/uart.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-armv7/uart.c b/src/mainboard/emulation/qemu-armv7/uart.c new file mode 100644 index 0000000000..29887777d7 --- /dev/null +++ b/src/mainboard/emulation/qemu-armv7/uart.c @@ -0,0 +1,56 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <console/console.h> +#include <uart.h> + +#define VEXPRESS_UART0_IO_ADDRESS (0x10009000) + +static void pl011_init_dev(void) { +} + +static void pl011_uart_tx_byte(unsigned char data) { + static volatile unsigned int *uart0_address = + (unsigned int *)VEXPRESS_UART0_IO_ADDRESS; + + *uart0_address = (unsigned int)data; +} + +static void pl011_uart_tx_flush(void) { +} + +#if !defined(__PRE_RAM__) + +static const struct console_driver pl011_uart_console __console = { + .init = pl011_init_dev, + .tx_byte = pl011_uart_tx_byte, + .tx_flush = pl011_uart_tx_flush, +}; + +#else +void uart_init(void) +{ + pl011_init_dev(); +} + +void uart_tx_byte(unsigned char data) +{ + pl011_uart_tx_byte(data); +} + +void uart_tx_flush(void) { + pl011_uart_tx_flush(); +} +#endif |