projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 73a59c1c SP |
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> | |
| 55d8baee | 15 | #include <asm/arch/at91_dbgu.h> |
| 73a59c1c SP |
16 | |
| 17 | .macro addruart,rx | |
| 18 | mrc p15, 0, \rx, c1, c0 | |
| 19 | tst \rx, #1 @ MMU enabled? | |
| 20 | ldreq \rx, =AT91_BASE_SYS @ System peripherals (phys address) | |
| 21 | ldrne \rx, =AT91_VA_BASE_SYS @ System peripherals (virt address) | |
| 22 | .endm | |
| 23 | ||
| 24 | .macro senduart,rd,rx | |
| 25 | strb \rd, [\rx, #AT91_DBGU_THR] @ Write to Transmitter Holding Register | |
| 26 | .endm | |
| 27 | ||
| 28 | .macro waituart,rd,rx | |
| 29 | 1001: ldr \rd, [\rx, #AT91_DBGU_SR] @ Read Status Register | |
| 30 | tst \rd, #AT91_DBGU_TXRDY @ DBGU_TXRDY = 1 when ready to transmit | |
| 31 | beq 1001b | |
| 32 | .endm | |
| 33 | ||
| 34 | .macro busyuart,rd,rx | |
| 35 | 1001: ldr \rd, [\rx, #AT91_DBGU_SR] @ Read Status Register | |
| 36 | tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete | |
| 37 | beq 1001b | |
| 38 | .endm | |
| 39 |