[ARM] Collect 8250-based debug implementations together
Several ARM machine implementations used an 8250 compatible 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>
diff --git a/include/asm-arm/arch-ixp4xx/debug-macro.S b/include/asm-arm/arch-ixp4xx/debug-macro.S
index 2e23651..37bc8ef 100644
--- a/include/asm-arm/arch-ixp4xx/debug-macro.S
+++ b/include/asm-arm/arch-ixp4xx/debug-macro.S
@@ -20,16 +20,5 @@
@ byte writes used - Big Endian.
.endm
- .macro senduart,rd,rx
- strb \rd, [\rx]
- .endm
-
- .macro waituart,rd,rx
-1002: ldrb \rd, [\rx, #0x14]
- and \rd, \rd, #0x60 @ check THRE and TEMT bits
- teq \rd, #0x60
- bne 1002b
- .endm
-
- .macro busyuart,rd,rx
- .endm
+#define UART_SHIFT 2
+#include <asm/hardware/debug-8250.S>