1/* arch/arm/mach-h720x/include/mach/debug-macro.S 2 * 3 * Debugging macro include header 4 * 5 * Copyright (C) 1994-1999 Russell King 6 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks 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 <mach/hardware.h> 15 16 .equ io_virt, IO_VIRT 17 .equ io_phys, IO_PHYS 18 19 .macro addruart, rx, tmp 20 mrc p15, 0, \rx, c1, c0 21 tst \rx, #1 @ MMU enabled? 22 moveq \rx, #io_phys @ physical base address 23 movne \rx, #io_virt @ virtual address 24 add \rx, \rx, #0x00020000 @ UART1 25 .endm 26 27 .macro senduart,rd,rx 28 str \rd, [\rx, #0x0] @ UARTDR 29 30 .endm 31 32 .macro waituart,rd,rx 331001: ldr \rd, [\rx, #0x18] @ UARTFLG 34 tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full 35 bne 1001b 36 .endm 37 38 .macro busyuart,rd,rx 391001: ldr \rd, [\rx, #0x18] @ UARTFLG 40 tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy 41 bne 1001b 42 .endm 43