1/* linux/include/asm-arm/arch-h720x/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 .equ io_virt, IO_BASE 15 .equ io_phys, IO_START 16 17 .macro addruart,rx 18 mrc p15, 0, \rx, c1, c0 19 tst \rx, #1 @ MMU enabled? 20 moveq \rx, #io_phys @ physical base address 21 movne \rx, #io_virt @ virtual address 22 add \rx, \rx, #0x00020000 @ UART1 23 .endm 24 25 .macro senduart,rd,rx 26 str \rd, [\rx, #0x0] @ UARTDR 27 28 .endm 29 30 .macro waituart,rd,rx 311001: ldr \rd, [\rx, #0x18] @ UARTFLG 32 tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full 33 bne 1001b 34 .endm 35 36 .macro busyuart,rd,rx 371001: ldr \rd, [\rx, #0x18] @ UARTFLG 38 tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy 39 bne 1001b 40 .endm 41