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-rw-r--r--include/asm-arm/arch-iop3xx/debug-macro.S48
1 files changed, 48 insertions, 0 deletions
diff --git a/include/asm-arm/arch-iop3xx/debug-macro.S b/include/asm-arm/arch-iop3xx/debug-macro.S
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+/* linux/include/asm-arm/arch-iop3xx/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.
+ *
+*/
+
+ .macro addruart,rx
+ mov \rx, #0xfe000000 @ physical
+#if defined(CONFIG_ARCH_IQ80321) || defined(CONFIG_ARCH_IQ31244)
+ orr \rx, \rx, #0x00800000 @ location of the UART
+#elif defined(CONFIG_ARCH_IOP331)
+ mrc p15, 0, \rx, c1, c0
+ tst \rx, #1 @ MMU enabled?
+ moveq \rx, #0x000fe000 @ Physical Base
+ movne \rx, #0
+ orr \rx, \rx, #0xfe000000
+ orr \rx, \rx, #0x00f00000 @ Virtual Base
+ orr \rx, \rx, #0x00001700 @ location of the UART
+#else
+#error Unknown IOP3XX implementation
+#endif
+ .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
+#if !defined(CONFIG_ARCH_IQ80321) || !defined(CONFIG_ARCH_IQ31244) || !defined(CONFIG_ARCH_IQ80331)
+1001: ldrb \rd, [\rx, #0x6]
+ tst \rd, #0x10
+ beq 1001b
+#endif
+ .endm