/* * include/asm-arm/arch-at91/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> #include <asm/arch/at91_dbgu.h> .macro addruart,rx mrc p15, 0, \rx, c1, c0 tst \rx, #1 @ MMU enabled? ldreq \rx, =(AT91_BASE_SYS + AT91_DBGU) @ System peripherals (phys address) ldrne \rx, =(AT91_VA_BASE_SYS + AT91_DBGU) @ System peripherals (virt address) .endm .macro senduart,rd,rx strb \rd, [\rx, #(AT91_DBGU_THR - AT91_DBGU)] @ Write to Transmitter Holding Register .endm .macro waituart,rd,rx 1001: ldr \rd, [\rx, #(AT91_DBGU_SR - AT91_DBGU)] @ 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 - AT91_DBGU)] @ Read Status Register tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete beq 1001b .endm