git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| a09e64fb | 1 | /* arch/arm/mach-lh7a40x/include/mach/debug-macro.S |
| 1da177e4 LT |
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 | @ It is not known if this will be appropriate for every 40x | |
| 15 | @ board. | |
| 16 | ||
| 0ea12930 JK |
17 | .macro addruart, rp, rv |
| 18 | mov \rp, #0x00000700 @ offset from base | |
| 19 | orr \rv, \rp, #0xf8000000 @ virtual base | |
| 20 | orr \rp, \rp, #0x80000000 @ physical base | |
| 1da177e4 LT |
21 | .endm |
| 22 | ||
| 23 | .macro senduart,rd,rx | |
| 24 | strb \rd, [\rx] @ DATA | |
| 25 | .endm | |
| 26 | ||
| 27 | .macro busyuart,rd,rx @ spin while busy | |
| 28 | 1001: ldr \rd, [\rx, #0x10] @ STATUS | |
| 29 | tst \rd, #1 << 3 @ BUSY (TX FIFO not empty) | |
| 30 | bne 1001b @ yes, spin | |
| 31 | .endm | |
| 32 | ||
| 33 | .macro waituart,rd,rx @ wait for Tx FIFO room | |
| 34 | 1001: ldrb \rd, [\rx, #0x10] @ STATUS | |
| 35 | tst \rd, #1 << 5 @ TXFF (TX FIFO full) | |
| 36 | bne 1001b @ yes, spin | |
| 37 | .endm |