| /* | |
| * 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. | |
| * | |
| */ | |
| #define UART_DATA 0 | |
| #define UART_FLAG 0x18 | |
| #define UART_FLAG_BUSY (1 << 3) | |
| .macro addruart, rp, rv, tmp | |
| ldr \rp, =CONFIG_DEBUG_UART_PHYS | |
| ldr \rv, =CONFIG_DEBUG_UART_VIRT | |
| .endm | |
| .macro senduart,rd,rx | |
| str \rd, [\rx, #UART_DATA] | |
| .endm | |
| .macro busyuart,rd,rx | |
| 1002: ldr \rd, [\rx, #UART_FLAG] | |
| tst \rd, #UART_FLAG_BUSY | |
| bne 1002b | |
| .endm | |
| .macro waituart,rd,rx | |
| 1001: ldr \rd, [\rx, #UART_FLAG] | |
| tst \rd, #UART_FLAG_BUSY | |
| bne 1001b | |
| .endm |