1 files changed, 85 insertions, 0 deletions
diff --git a/bsps/microblaze/microblaze_fpga/console/debug-io.c b/bsps/microblaze/microblaze_fpga/console/debug-io.c
new file mode 100644
index 0000000000..d85229ae9e
--- /dev/null
+++ b/bsps/microblaze/microblaze_fpga/console/debug-io.c
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSBSPsMicroblaze
+ *
+ * @brief MicroBlaze debug IO support
+ */
+
+/*
+ * Copyright (C) 2015 Hesham Almatary
+ * Copyright (C) 2021 On-Line Applications Research Corporation (OAR)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <dev/serial/uartlite_l.h>
+#include <rtems/bspIo.h>
+
+#include <bsp.h>
+#include <bspopts.h>
+
+static uint32_t mblaze_uart_base = 0;
+
+static void output_char( char c )
+{
+  if (mblaze_uart_base == 0 ) {
+    mblaze_uart_base = try_get_prop_from_device_tree(
+      "xlnx,xps-uartlite-1.00.a",
+      "reg",
+      BSP_MICROBLAZE_FPGA_UART_BASE
+    );
+  }
+
+    if ( c == '\n' ) {
+    XUartLite_SendByte( mblaze_uart_base, '\r' );
+  }
+  XUartLite_SendByte( mblaze_uart_base, c );
+}
+
+static int xUartLite_RecvByte( int minor )
+{
+  if (mblaze_uart_base == 0 ) {
+    mblaze_uart_base = try_get_prop_from_device_tree(
+      "xlnx,xps-uartlite-1.00.a",
+      "reg",
+      BSP_MICROBLAZE_FPGA_UART_BASE
+    );
+  }
+
+  if ( XUartLite_IsReceiveEmpty( mblaze_uart_base ) ) {
+    return -1;
+  }
+
+  return XUartLite_ReadReg( mblaze_uart_base, XUL_RX_FIFO_OFFSET );
+}
+
+static int get_char( void )
+{
+  return xUartLite_RecvByte( 0 );
+}
+
+BSP_output_char_function_type BSP_output_char = output_char;
+
+BSP_polling_getchar_function_type BSP_poll_char = get_char;