| /* linux/include/asm-arm/arch-imx/debug-macro.S |
| * |
| * Debugging macro include header |
| * |
| * Copyright (C) 1994-1999 Russell King |
| * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks |
| * |
| * 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,rx |
| mrc p15, 0, \rx, c1, c0 |
| tst \rx, #1 @ MMU enabled? |
| moveq \rx, #0x00000000 @ physical |
| movne \rx, #0xe0000000 @ virtual |
| orreq \rx, \rx, #0x00200000 @ physical |
| orr \rx, \rx, #0x00006000 @ UART1 offset |
| .endm |
| |
| .macro senduart,rd,rx |
| str \rd, [\rx, #0x40] @ TXDATA |
| .endm |
| |
| .macro waituart,rd,rx |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1002: ldr \rd, [\rx, #0x98] @ SR2 |
| tst \rd, #1 << 3 @ TXDC |
| beq 1002b @ wait until transmit done |
| .endm |