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1da177e4 LT |
1 | /* linux/include/asm-arm/arch-h720x/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, #0x00020000 @ UART1 | |
23 | .endm | |
24 | ||
25 | .macro senduart,rd,rx | |
26 | str \rd, [\rx, #0x0] @ UARTDR | |
27 | ||
28 | .endm | |
29 | ||
30 | .macro waituart,rd,rx | |
31 | 1001: 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 | |
37 | 1001: ldr \rd, [\rx, #0x18] @ UARTFLG | |
38 | tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy | |
39 | bne 1001b | |
40 | .endm |