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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-03-16 23:50:34 +0300
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-03-22 01:05:58 +0300
commit71dccd0f158a8077c92d51f213b55991b7a0e47e (patch)
treee5a3f3284db0669b63ea8ad6a263f226aca48dd1 /include/asm-arm/hardware/debug-pl01x.S
parent268099e3ccca5a988632ce18abd21d809d632ddc (diff)
downloadlinux-71dccd0f158a8077c92d51f213b55991b7a0e47e.tar.xz
[ARM] Collect Primecell PL01x-based debug implementations together
Several ARM machine implementations used a PL01x primecell compatible serial port for debugging purposes, and indepdently implemented the low level debug macros every time. Provide a common implementation and convert these implementations to use this version. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/hardware/debug-pl01x.S')
-rw-r--r--include/asm-arm/hardware/debug-pl01x.S29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/asm-arm/hardware/debug-pl01x.S b/include/asm-arm/hardware/debug-pl01x.S
new file mode 100644
index 000000000000..db0d0f7de5e9
--- /dev/null
+++ b/include/asm-arm/hardware/debug-pl01x.S
@@ -0,0 +1,29 @@
+/* linux/include/asm-arm/arch-integrator/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 <linux/amba/serial.h>
+
+ .macro senduart,rd,rx
+ strb \rd, [\rx, #UART01x_DR]
+ .endm
+
+ .macro waituart,rd,rx
+1001: ldr \rd, [\rx, #UART01x_FR]
+ tst \rd, #UART01x_FR_TXFF
+ bne 1001b
+ .endm
+
+ .macro busyuart,rd,rx
+1001: ldr \rd, [\rx, #UART01x_FR]
+ tst \rd, #UART01x_FR_BUSY
+ bne 1001b
+ .endm