/* SPDX-License-Identifier: GPL-2.0-only *//* arch/arm/mach-imx/include/mach/debug-macro.S * * Debugging macro include header * *  Copyright (C) 1994-1999 Russell King *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks */ #include <asm/assembler.h>#include "imx-uart.h" /* * FIXME: This is a copy of IMX_IO_P2V in hardware.h, and needs to * stay sync with that.  It's hard to maintain, and should be fixed * globally for multi-platform build to use a fixed virtual address * for low-level debug uart port across platforms. */#define IMX_IO_P2V(x)	(						\			(((x) & 0x80000000) >> 7) |			\			(0xf4000000 +					\			(((x) & 0x50000000) >> 6) +			\			(((x) & 0x0b000000) >> 4) +			\			(((x) & 0x000fffff)))) #define UART_VADDR	IMX_IO_P2V(UART_PADDR) 		.macro	addruart, rp, rv, tmp		ldr	\rp, =UART_PADDR	@ physical		ldr	\rv, =UART_VADDR	@ virtual		.endm 		.macro	senduart,rd,rx		ARM_BE8(rev \rd, \rd)		str	\rd, [\rx, #0x40]	@ TXDATA		.endm 		.macro	waituartcts,rd,rx		.endm 		.macro	waituarttxrdy,rd,rx		.endm 		.macro	busyuart,rd,rx1002:		ldr	\rd, [\rx, #0x98]	@ SR2		ARM_BE8(rev \rd, \rd)		tst	\rd, #1 << 3		@ TXDC		beq	1002b			@ wait until transmit done		.endm