orr \rx, \rx, #0x00100000
.endm
-#define UART_SHIFT 2
-#include <asm/hardware/debug-8250.S>
+ .macro senduart,rd,rx
+ str \rd, [\rx, #0]
+ .endm
+
+ .macro busyuart,rd,rx
+1002: ldr \rd, [\rx, #0x14]
+ tst \rd, #(1 << 6)
+ beq 1002b
+ .endm
+
+ .macro waituart,rd,rx
+1001: ldr \rd, [\rx, #0x14]
+ tst \rd, #(1 << 5)
+ beq 1001b
+ .endm