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- /*
- * include/asm-arm/arch-at91rm9200/debug-macro.S
- *
- * Copyright (C) 2003-2005 SAN People
- *
- * Debugging macro include header
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
- #include <asm/hardware.h>
- .macro addruart,rx
- mrc p15, 0, \rx, c1, c0
- tst \rx, #1 @ MMU enabled?
- ldreq \rx, =AT91_BASE_SYS @ System peripherals (phys address)
- ldrne \rx, =AT91_VA_BASE_SYS @ System peripherals (virt address)
- .endm
- .macro senduart,rd,rx
- strb \rd, [\rx, #AT91_DBGU_THR] @ Write to Transmitter Holding Register
- .endm
- .macro waituart,rd,rx
- 1001: ldr \rd, [\rx, #AT91_DBGU_SR] @ Read Status Register
- tst \rd, #AT91_DBGU_TXRDY @ DBGU_TXRDY = 1 when ready to transmit
- beq 1001b
- .endm
- .macro busyuart,rd,rx
- 1001: ldr \rd, [\rx, #AT91_DBGU_SR] @ Read Status Register
- tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete
- beq 1001b
- .endm
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