Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* linux/include/asm-arm/arch-rpc/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
14 .macro addruart,rx
15 mrc p15, 0, \rx, c1, c0
16 tst \rx, #1 @ MMU enabled?
17 moveq \rx, #0x03000000
18 movne \rx, #0xe0000000
19 orr \rx, \rx, #0x00010000
20 orr \rx, \rx, #0x00000fe0
21 .endm
22
23 .macro senduart,rd,rx
24 strb \rd, [\rx]
25 .endm
26
27 .macro busyuart,rd,rx
281001: ldrb \rd, [\rx, #0x14]
29 and \rd, \rd, #0x60
30 teq \rd, #0x60
31 bne 1001b
32 .endm
33
34 .macro waituart,rd,rx
351001: ldrb \rd, [\rx, #0x18]
36 tst \rd, #0x10
37 beq 1001b
38 .endm