orr \rx, \rx, #0x00000be0
.endm
-#define UART_SHIFT 2
-#include <asm/hardware/debug-8250.S>
+ .macro senduart,rd,rx
+ strb \rd, [\rx]
+ .endm
+
+ .macro busyuart,rd,rx
+ .endm
+
+ .macro waituart,rd,rx
+1001: ldrb \rd, [\rx, #0x14]
+ tst \rd, #0x20
+ beq 1001b
+ .endm