Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/* linux/include/asm-arm/arch-integrator/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#include <asm/hardware/amba_serial.h>
15
16 .macro addruart,rx
17 mrc p15, 0, \rx, c1, c0
18 tst \rx, #1 @ MMU enabled?
19 moveq \rx, #0x16000000 @ physical base address
20 movne \rx, #0xf0000000 @ virtual base
21 addne \rx, \rx, #0x16000000 >> 4
22 .endm
23
24 .macro senduart,rd,rx
25 strb \rd, [\rx, #UART01x_DR]
26 .endm
27
28 .macro waituart,rd,rx
291001: ldr \rd, [\rx, #0x18] @ UARTFLG
30 tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
31 bne 1001b
32 .endm
33
34 .macro busyuart,rd,rx
351001: ldr \rd, [\rx, #0x18] @ UARTFLG
36 tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy
37 bne 1001b
38 .endm