xref: /openbmc/linux/arch/arm/include/debug/vexpress.S (revision fa04e4db)
1fa04e4dbSRob Herring/* arch/arm/mach-realview/include/mach/debug-macro.S
2fa04e4dbSRob Herring *
3fa04e4dbSRob Herring * Debugging macro include header
4fa04e4dbSRob Herring *
5fa04e4dbSRob Herring *  Copyright (C) 1994-1999 Russell King
6fa04e4dbSRob Herring *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
7fa04e4dbSRob Herring *
8fa04e4dbSRob Herring * This program is free software; you can redistribute it and/or modify
9fa04e4dbSRob Herring * it under the terms of the GNU General Public License version 2 as
10fa04e4dbSRob Herring * published by the Free Software Foundation.
11fa04e4dbSRob Herring */
12fa04e4dbSRob Herring
13fa04e4dbSRob Herring#define DEBUG_LL_PHYS_BASE		0x10000000
14fa04e4dbSRob Herring#define DEBUG_LL_UART_OFFSET		0x00009000
15fa04e4dbSRob Herring
16fa04e4dbSRob Herring#define DEBUG_LL_PHYS_BASE_RS1		0x1c000000
17fa04e4dbSRob Herring#define DEBUG_LL_UART_OFFSET_RS1	0x00090000
18fa04e4dbSRob Herring
19fa04e4dbSRob Herring#define DEBUG_LL_VIRT_BASE		0xf8000000
20fa04e4dbSRob Herring
21fa04e4dbSRob Herring#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
22fa04e4dbSRob Herring
23fa04e4dbSRob Herring		.macro	addruart,rp,rv,tmp
24fa04e4dbSRob Herring
25fa04e4dbSRob Herring		@ Make an educated guess regarding the memory map:
26fa04e4dbSRob Herring		@ - the original A9 core tile, which has MPCore peripherals
27fa04e4dbSRob Herring		@   located at 0x1e000000, should use UART at 0x10009000
28fa04e4dbSRob Herring		@ - all other (RS1 complaint) tiles use UART mapped
29fa04e4dbSRob Herring		@   at 0x1c090000
30fa04e4dbSRob Herring		mrc	p15, 4, \tmp, c15, c0, 0
31fa04e4dbSRob Herring		cmp	\tmp, #0x1e000000
32fa04e4dbSRob Herring
33fa04e4dbSRob Herring		@ Original memory map
34fa04e4dbSRob Herring		moveq	\rp, #DEBUG_LL_UART_OFFSET
35fa04e4dbSRob Herring		orreq	\rv, \rp, #DEBUG_LL_VIRT_BASE
36fa04e4dbSRob Herring		orreq	\rp, \rp, #DEBUG_LL_PHYS_BASE
37fa04e4dbSRob Herring
38fa04e4dbSRob Herring		@ RS1 memory map
39fa04e4dbSRob Herring		movne	\rp, #DEBUG_LL_UART_OFFSET_RS1
40fa04e4dbSRob Herring		orrne	\rv, \rp, #DEBUG_LL_VIRT_BASE
41fa04e4dbSRob Herring		orrne	\rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
42fa04e4dbSRob Herring
43fa04e4dbSRob Herring		.endm
44fa04e4dbSRob Herring
45fa04e4dbSRob Herring#include <asm/hardware/debug-pl01x.S>
46fa04e4dbSRob Herring
47fa04e4dbSRob Herring#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9)
48fa04e4dbSRob Herring
49fa04e4dbSRob Herring		.macro	addruart,rp,rv,tmp
50fa04e4dbSRob Herring		mov	\rp, #DEBUG_LL_UART_OFFSET
51fa04e4dbSRob Herring		orr	\rv, \rp, #DEBUG_LL_VIRT_BASE
52fa04e4dbSRob Herring		orr	\rp, \rp, #DEBUG_LL_PHYS_BASE
53fa04e4dbSRob Herring		.endm
54fa04e4dbSRob Herring
55fa04e4dbSRob Herring#include <asm/hardware/debug-pl01x.S>
56fa04e4dbSRob Herring
57fa04e4dbSRob Herring#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1)
58fa04e4dbSRob Herring
59fa04e4dbSRob Herring		.macro	addruart,rp,rv,tmp
60fa04e4dbSRob Herring		mov	\rp, #DEBUG_LL_UART_OFFSET_RS1
61fa04e4dbSRob Herring		orr	\rv, \rp, #DEBUG_LL_VIRT_BASE
62fa04e4dbSRob Herring		orr	\rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
63fa04e4dbSRob Herring		.endm
64fa04e4dbSRob Herring
65fa04e4dbSRob Herring#include <asm/hardware/debug-pl01x.S>
66fa04e4dbSRob Herring
67fa04e4dbSRob Herring#else /* CONFIG_DEBUG_LL_UART_NONE */
68fa04e4dbSRob Herring
69fa04e4dbSRob Herring		.macro	addruart, rp, rv, tmp
70fa04e4dbSRob Herring		/* Safe dummy values */
71fa04e4dbSRob Herring		mov	\rp, #0
72fa04e4dbSRob Herring		mov	\rv, #DEBUG_LL_VIRT_BASE
73fa04e4dbSRob Herring		.endm
74fa04e4dbSRob Herring
75fa04e4dbSRob Herring		.macro	senduart,rd,rx
76fa04e4dbSRob Herring		.endm
77fa04e4dbSRob Herring
78fa04e4dbSRob Herring		.macro	waituart,rd,rx
79fa04e4dbSRob Herring		.endm
80fa04e4dbSRob Herring
81fa04e4dbSRob Herring		.macro	busyuart,rd,rx
82fa04e4dbSRob Herring		.endm
83fa04e4dbSRob Herring
84fa04e4dbSRob Herring#endif
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