1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Debugging macro include header 3 * 4 * Copyright (C) 1994-1999 Russell King 5 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks 6 * Modified for ASM9260 by Oleksij Remepl <linux@rempel-privat.de> 7 */ 8 9 .macro addruart, rp, rv, tmp 10 ldr \rp, = CONFIG_DEBUG_UART_PHYS 11 ldr \rv, = CONFIG_DEBUG_UART_VIRT 12 .endm 13 14 .macro waituart,rd,rx 15 .endm 16 17 .macro senduart,rd,rx 18 str \rd, [\rx, #0x50] @ TXDATA 19 .endm 20 21 .macro busyuart,rd,rx 22 1002: ldr \rd, [\rx, #0x60] @ STAT 23 tst \rd, #1 << 27 @ TXEMPTY 24 beq 1002b @ wait until transmit done 25 .endm