1/* 2 * include/asm-arm/arch-ks8695/debug-macro.S 3 * 4 * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> 5 * Copyright (C) 2006 Simtec Electronics 6 * 7 * KS8695 - Debug macros 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14#include <asm/hardware.h> 15#include <asm/arch/regs-uart.h> 16 17 .macro addruart, rx 18 mrc p15, 0, \rx, c1, c0 19 tst \rx, #1 @ MMU enabled? 20 ldreq \rx, =KS8695_UART_PA @ physical base address 21 ldrne \rx, =KS8695_UART_VA @ virtual base address 22 .endm 23 24 .macro senduart, rd, rx 25 str \rd, [\rx, #KS8695_URTH] @ Write to Transmit Holding Register 26 .endm 27 28 .macro busyuart, rd, rx 291001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register 30 tst \rd, #URLS_URTE @ Holding & Shift registers empty? 31 beq 1001b 32 .endm 33 34 .macro waituart, rd, rx 351001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register 36 tst \rd, #URLS_URTHRE @ Holding Register empty? 37 beq 1001b 38 .endm 39