| /* |
| * Copyright (C) 1994-1999 Russell King |
| * Copyright (C) 2008-2009 Telechips |
| * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| .macro addruart, rp, rv |
| moveq \rp, #0x90000000 @ physical base address |
| movne \rv, #0xF1000000 @ virtual base |
| orr \rp, \rp, #0x00007000 @ UART0 |
| orr \rv, \rv, #0x00007000 @ UART0 |
| .endm |
| |
| .macro senduart,rd,rx |
| strb \rd, [\rx, #0x44] |
| .endm |
| |
| .macro waituart,rd,rx |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1001: |
| ldr \rd, [\rx, #0x14] |
| tst \rd, #0x20 |
| |
| beq 1001b |
| .endm |
