1 files changed, 81 insertions, 0 deletions
diff --git a/target/linux/realtek/files/arch/rlx/bsp/kgdb.c b/target/linux/realtek/files/arch/rlx/bsp/kgdb.c
new file mode 100644
index 000000000..93960b21f
--- /dev/null
+++ b/target/linux/realtek/files/arch/rlx/bsp/kgdb.c
@@ -0,0 +1,81 @@
+/*
+ * Realtek semiconductor Corp.
+ *
+ *   arch/rlx/rlxocp/kgdb.c:
+ *      Kernel debugging on the rtl5739.
+ *
+ * Tony Wu (tonywu@realtek.com.tw)
+ * Dec. 7, 2007
+ */
+#include <asm/system.h>
+#include <asm/tx3912.h>
+
+static int remoteDebugInitialized = 0;
+
+void debugInit(void)
+{
+/*
+ * If low-level debugging (before GDB or console operational) is
+ * configured, then we do not need to re-initialize the UART.
+ */
+#ifndef CONFIG_DEBUG_LL
+//      earlyInitUartPR31700();
+#endif
+}
+
+char getDebugChar(void)
+{
+    char buf;
+    unsigned long int2, flags;
+
+    if (!remoteDebugInitialized) {
+        debugInit();
+        remoteDebugInitialized = 1;
+    }
+
+    save_and_cli(flags);
+
+    int2 = IntEnable2;
+
+    IntEnable2 = 0;
+
+    while (!(UartA_Ctrl1 & UART_RX_HOLD_FULL));
+
+    buf = UartA_Data;
+
+    IntEnable2 = int2;
+
+    restore_flags(flags);
+
+    return buf;
+}
+
+int putDebugChar(char c)
+{
+    int i;
+    unsigned long int2;
+
+    if (!remoteDebugInitialized) {
+        debugInit();
+        remoteDebugInitialized = 1;
+    }
+
+    int2 = IntEnable2;
+
+    IntEnable2 &=
+        ~(INT2_UARTATXINT | INT2_UARTATXOVERRUN | INT2_UARTAEMPTY);
+
+    for (i = 0; !(IntStatus2 & INT2_UARTATXINT) && (i < 10000); i++);
+
+    IntClear2 = INT2_UARTATXINT | INT2_UARTATXOVERRUN | INT2_UARTAEMPTY;
+
+    UartA_Data = c;
+
+    for (i = 0; !(IntStatus2 & INT2_UARTATXINT) && (i < 10000); i++);
+
+    IntClear2 = INT2_UARTATXINT | INT2_UARTATXOVERRUN | INT2_UARTAEMPTY;
+
+    IntEnable2 = int2;
+
+    return 1;
+}