| /* linux/include/asm-arm/arch-ebsa285/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. | |
| * | |
| */ | |
| #include <asm/hardware/dec21285.h> | |
| #ifndef CONFIG_DEBUG_DC21285_PORT | |
| /* For NetWinder debugging */ | |
| .macro addruart,rx | |
| mrc p15, 0, \rx, c1, c0 | |
| tst \rx, #1 @ MMU enabled? | |
| moveq \rx, #0x7c000000 @ physical | |
| movne \rx, #0xff000000 @ virtual | |
| orr \rx, \rx, #0x000003f8 | |
| .endm | |
| #define UART_SHIFT 0 | |
| #define FLOW_CONTROL | |
| #include <asm/hardware/debug-8250.S> | |
| #else | |
| /* For EBSA285 debugging */ | |
| .equ dc21285_high, ARMCSR_BASE & 0xff000000 | |
| .equ dc21285_low, ARMCSR_BASE & 0x00ffffff | |
| .macro addruart,rx | |
| mrc p15, 0, \rx, c1, c0 | |
| tst \rx, #1 @ MMU enabled? | |
| moveq \rx, #0x42000000 | |
| movne \rx, #dc21285_high | |
| .if dc21285_low | |
| orrne \rx, \rx, #dc21285_low | |
| .endif | |
| .endm | |
| .macro senduart,rd,rx | |
| str \rd, [\rx, #0x160] @ UARTDR | |
| .endm | |
| .macro busyuart,rd,rx | |
| 1001: ldr \rd, [\rx, #0x178] @ UARTFLG | |
| tst \rd, #1 << 3 | |
| bne 1001b | |
| .endm | |
| .macro waituart,rd,rx | |
| .endm | |
| #endif |