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-rw-r--r--include/asm-arm/arch-ebsa285/debug-macro.S66
1 files changed, 66 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ebsa285/debug-macro.S b/include/asm-arm/arch-ebsa285/debug-macro.S
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+/* linux/include/asm-arm/arch-ebsa285/debug-macro.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 <asm/hardware/dec21285.h>
+
+#ifndef CONFIG_DEBUG_DC21285_PORT
+ /* For NetWinder debugging */
+ .macro addruart,rx
+ mrc p15, 0, \rx, c1, c0
+ tst \rx, #1 @ MMU enabled?
+ moveq \rx, #0x7c000000 @ physical
+ movne \rx, #0xff000000 @ virtual
+ orr \rx, \rx, #0x000003f8
+ .endm
+
+ .macro senduart,rd,rx
+ strb \rd, [\rx]
+ .endm
+
+ .macro busyuart,rd,rx
+1002: ldrb \rd, [\rx, #0x5]
+ and \rd, \rd, #0x60
+ teq \rd, #0x60
+ bne 1002b
+ .endm
+
+ .macro waituart,rd,rx
+1001: ldrb \rd, [\rx, #0x6]
+ tst \rd, #0x10
+ beq 1001b
+ .endm
+#else
+ /* For EBSA285 debugging */
+ .equ dc21285_high, ARMCSR_BASE & 0xff000000
+ .equ dc21285_low, ARMCSR_BASE & 0x00ffffff
+
+ .macro addruart,rx
+ mov \rx, #dc21285_high
+ .if dc21285_low
+ orr \rx, \rx, #dc21285_low
+ .endif
+ .endm
+
+ .macro senduart,rd,rx
+ str \rd, [\rx, #0x160] @ UARTDR
+ .endm
+
+ .macro busyuart,rd,rx
+1001: ldr \rd, [\rx, #0x178] @ UARTFLG
+ tst \rd, #1 << 3
+ bne 1001b
+ .endm
+
+ .macro waituart,rd,rx
+ .endm
+#endif