projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 4d31e664 | 1 | /* |
| bb6d8c88 SH |
2 | * Debugging macro include header |
| 3 | * | |
| 4 | * Copyright (C) 1994-1999 Russell King | |
| 5 | * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License version 2 as | |
| 9 | * published by the Free Software Foundation. | |
| 10 | * | |
| 11 | */ | |
| 12 | ||
| 4d31e664 DT |
13 | #define UART_DATA 0 |
| 14 | #define UART_FLAG 0x18 | |
| 15 | #define UART_FLAG_BUSY (1 << 3) | |
| bb6d8c88 | 16 | |
| 639da5ee | 17 | .macro addruart, rp, rv, tmp |
| 4d31e664 DT |
18 | ldr \rp, =CONFIG_DEBUG_UART_PHYS |
| 19 | ldr \rv, =CONFIG_DEBUG_UART_VIRT | |
| bb6d8c88 SH |
20 | .endm |
| 21 | ||
| 22 | .macro senduart,rd,rx | |
| 4d31e664 | 23 | str \rd, [\rx, #UART_DATA] |
| bb6d8c88 SH |
24 | .endm |
| 25 | ||
| 26 | .macro busyuart,rd,rx | |
| 4d31e664 DT |
27 | 1002: ldr \rd, [\rx, #UART_FLAG] |
| 28 | tst \rd, #UART_FLAG_BUSY | |
| bb6d8c88 SH |
29 | bne 1002b |
| 30 | .endm | |
| 31 | ||
| 32 | .macro waituart,rd,rx | |
| 4d31e664 DT |
33 | 1001: ldr \rd, [\rx, #UART_FLAG] |
| 34 | tst \rd, #UART_FLAG_BUSY | |
| bb6d8c88 SH |
35 | bne 1001b |
| 36 | .endm |