summaryrefslogtreecommitdiff
path: root/src/mainboard/emulation/qemu-armv7/uart.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mainboard/emulation/qemu-armv7/uart.c')
-rw-r--r--src/mainboard/emulation/qemu-armv7/uart.c56
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