git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 83ef3338 HK |
1 | /* |
| 2 | * Copyright (C) 1994-1999 Russell King | |
| 3 | * Copyright (C) 2008-2009 Telechips | |
| 4 | * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | * | |
| 10 | */ | |
| 11 | ||
| 0ea12930 JK |
12 | .macro addruart, rp, rv |
| 13 | moveq \rp, #0x90000000 @ physical base address | |
| 14 | movne \rv, #0xF1000000 @ virtual base | |
| 15 | orr \rp, \rp, #0x00007000 @ UART0 | |
| 16 | orr \rv, \rv, #0x00007000 @ UART0 | |
| 83ef3338 HK |
17 | .endm |
| 18 | ||
| 19 | .macro senduart,rd,rx | |
| 20 | strb \rd, [\rx, #0x44] | |
| 21 | .endm | |
| 22 | ||
| 23 | .macro waituart,rd,rx | |
| 24 | .endm | |
| 25 | ||
| 26 | .macro busyuart,rd,rx | |
| 27 | 1001: | |
| 28 | ldr \rd, [\rx, #0x14] | |
| 29 | tst \rd, #0x20 | |
| 30 | ||
| 31 | beq 1001b | |
| 32 | .endm |