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-rw-r--r--kernel/arch/arm/include/debug/pl01x.S38
1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/arch/arm/include/debug/pl01x.S b/kernel/arch/arm/include/debug/pl01x.S
new file mode 100644
index 000000000..92ef808a2
--- /dev/null
+++ b/kernel/arch/arm/include/debug/pl01x.S
@@ -0,0 +1,38 @@
+/* arch/arm/include/debug/pl01x.S
+ *
+ * Debugging macro include header
+ *
+ * Copyright (C) 1994-1999 Russell King
+ * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+#include <linux/amba/serial.h>
+
+#ifdef CONFIG_DEBUG_UART_PHYS
+ .macro addruart, rp, rv, tmp
+ ldr \rp, =CONFIG_DEBUG_UART_PHYS
+ ldr \rv, =CONFIG_DEBUG_UART_VIRT
+ .endm
+#endif
+
+ .macro senduart,rd,rx
+ strb \rd, [\rx, #UART01x_DR]
+ .endm
+
+ .macro waituart,rd,rx
+1001: ldr \rd, [\rx, #UART01x_FR]
+ ARM_BE8( rev \rd, \rd )
+ tst \rd, #UART01x_FR_TXFF
+ bne 1001b
+ .endm
+
+ .macro busyuart,rd,rx
+1001: ldr \rd, [\rx, #UART01x_FR]
+ ARM_BE8( rev \rd, \rd )
+ tst \rd, #UART01x_FR_BUSY
+ bne 1001b
+ .endm