1/* arch/arm/mach-imx/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#include <mach/hardware.h>
14
15#ifdef CONFIG_DEBUG_IMX1_UART
16#define UART_PADDR	MX1_UART1_BASE_ADDR
17#elif defined (CONFIG_DEBUG_IMX25_UART)
18#define UART_PADDR	MX25_UART1_BASE_ADDR
19#elif defined (CONFIG_DEBUG_IMX21_IMX27_UART)
20#define UART_PADDR	MX2x_UART1_BASE_ADDR
21#elif defined (CONFIG_DEBUG_IMX31_IMX35_UART)
22#define UART_PADDR	MX3x_UART1_BASE_ADDR
23#elif defined (CONFIG_DEBUG_IMX51_UART)
24#define UART_PADDR	MX51_UART1_BASE_ADDR
25#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)
26#define UART_PADDR	MX53_UART1_BASE_ADDR
27#elif defined (CONFIG_DEBUG_IMX6Q_UART)
28#define UART_PADDR	MX6Q_UART4_BASE_ADDR
29#endif
30
31#define UART_VADDR	IMX_IO_ADDRESS(UART_PADDR)
32
33		.macro	addruart, rp, rv, tmp
34		ldr	\rp, =UART_PADDR	@ physical
35		ldr	\rv, =UART_VADDR	@ virtual
36		.endm
37
38		.macro	senduart,rd,rx
39		str	\rd, [\rx, #0x40]	@ TXDATA
40		.endm
41
42		.macro	waituart,rd,rx
43		.endm
44
45		.macro	busyuart,rd,rx
461002:		ldr	\rd, [\rx, #0x98]	@ SR2
47		tst	\rd, #1 << 3		@ TXDC
48		beq	1002b			@ wait until transmit done
49		.endm
50