diff options
Diffstat (limited to 'include/asm-arm/arch-at91rm9200/debug-macro.S')
-rw-r--r-- | include/asm-arm/arch-at91rm9200/debug-macro.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-arm/arch-at91rm9200/debug-macro.S b/include/asm-arm/arch-at91rm9200/debug-macro.S new file mode 100644 index 000000000000..f496b54c4c3e --- /dev/null +++ b/include/asm-arm/arch-at91rm9200/debug-macro.S | |||
@@ -0,0 +1,38 @@ | |||
1 | /* | ||
2 | * include/asm-arm/arch-at91rm9200/debug-macro.S | ||
3 | * | ||
4 | * Copyright (C) 2003-2005 SAN People | ||
5 | * | ||
6 | * Debugging macro include header | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License version 2 as | ||
10 | * published by the Free Software Foundation. | ||
11 | * | ||
12 | */ | ||
13 | |||
14 | #include <asm/hardware.h> | ||
15 | |||
16 | .macro addruart,rx | ||
17 | mrc p15, 0, \rx, c1, c0 | ||
18 | tst \rx, #1 @ MMU enabled? | ||
19 | ldreq \rx, =AT91_BASE_SYS @ System peripherals (phys address) | ||
20 | ldrne \rx, =AT91_VA_BASE_SYS @ System peripherals (virt address) | ||
21 | .endm | ||
22 | |||
23 | .macro senduart,rd,rx | ||
24 | strb \rd, [\rx, #AT91_DBGU_THR] @ Write to Transmitter Holding Register | ||
25 | .endm | ||
26 | |||
27 | .macro waituart,rd,rx | ||
28 | 1001: ldr \rd, [\rx, #AT91_DBGU_SR] @ Read Status Register | ||
29 | tst \rd, #AT91_DBGU_TXRDY @ DBGU_TXRDY = 1 when ready to transmit | ||
30 | beq 1001b | ||
31 | .endm | ||
32 | |||
33 | .macro busyuart,rd,rx | ||
34 | 1001: ldr \rd, [\rx, #AT91_DBGU_SR] @ Read Status Register | ||
35 | tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete | ||
36 | beq 1001b | ||
37 | .endm | ||
38 | |||