Linux kernel mirror (for testing)
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linux
1/* arch/arm/mach-realview/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#define DEBUG_LL_PHYS_BASE 0x10000000
14#define DEBUG_LL_UART_OFFSET 0x00009000
15
16#define DEBUG_LL_PHYS_BASE_RS1 0x1c000000
17#define DEBUG_LL_UART_OFFSET_RS1 0x00090000
18
19#define DEBUG_LL_VIRT_BASE 0xf8000000
20
21#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
22
23 .macro addruart,rp,rv,tmp
24 .arch armv7-a
25
26 @ Make an educated guess regarding the memory map:
27 @ - the original A9 core tile (based on ARM Cortex-A9 r0p1)
28 @ should use UART at 0x10009000
29 @ - all other (RS1 complaint) tiles use UART mapped
30 @ at 0x1c090000
31 mrc p15, 0, \rp, c0, c0, 0
32 movw \rv, #0xc091
33 movt \rv, #0x410f
34 cmp \rp, \rv
35
36 @ Original memory map
37 moveq \rp, #DEBUG_LL_UART_OFFSET
38 orreq \rv, \rp, #DEBUG_LL_VIRT_BASE
39 orreq \rp, \rp, #DEBUG_LL_PHYS_BASE
40
41 @ RS1 memory map
42 movne \rp, #DEBUG_LL_UART_OFFSET_RS1
43 orrne \rv, \rp, #DEBUG_LL_VIRT_BASE
44 orrne \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
45
46 .endm
47
48#include <asm/hardware/debug-pl01x.S>
49
50#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9)
51
52 .macro addruart,rp,rv,tmp
53 mov \rp, #DEBUG_LL_UART_OFFSET
54 orr \rv, \rp, #DEBUG_LL_VIRT_BASE
55 orr \rp, \rp, #DEBUG_LL_PHYS_BASE
56 .endm
57
58#include <asm/hardware/debug-pl01x.S>
59
60#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1)
61
62 .macro addruart,rp,rv,tmp
63 mov \rp, #DEBUG_LL_UART_OFFSET_RS1
64 orr \rv, \rp, #DEBUG_LL_VIRT_BASE
65 orr \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
66 .endm
67
68#include <asm/hardware/debug-pl01x.S>
69
70#else /* CONFIG_DEBUG_LL_UART_NONE */
71
72 .macro addruart, rp, rv, tmp
73 /* Safe dummy values */
74 mov \rp, #0
75 mov \rv, #DEBUG_LL_VIRT_BASE
76 .endm
77
78 .macro senduart,rd,rx
79 .endm
80
81 .macro waituart,rd,rx
82 .endm
83
84 .macro busyuart,rd,rx
85 .endm
86
87#endif