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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* linux/include/asm-arm/arch-l7200/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 .equ io_virt, IO_BASE
15 .equ io_phys, IO_START
16
17 .macro addruart,rx
18 mrc p15, 0, \rx, c1, c0
19 tst \rx, #1 @ MMU enabled?
20 moveq \rx, #io_phys @ physical base address
21 movne \rx, #io_virt @ virtual address
22 add \rx, \rx, #0x00044000 @ UART1
23@ add \rx, \rx, #0x00045000 @ UART2
24 .endm
25
26 .macro senduart,rd,rx
27 str \rd, [\rx, #0x0] @ UARTDR
28 .endm
29
30 .macro waituart,rd,rx
311001: ldr \rd, [\rx, #0x18] @ UARTFLG
32 tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
33 bne 1001b
34 .endm
35
36 .macro busyuart,rd,rx
371001: ldr \rd, [\rx, #0x18] @ UARTFLG
38 tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy
39 bne 1001b
40 .endm