| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* Debugging macro include header |
| 3 | * |
| 4 | * Copyright (C) 1994-1999 Russell King |
| 5 | * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks |
| 6 | * Modified for ASM9260 by Oleksij Remepl <linux@rempel-privat.de> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | .macro addruart, rp, rv, tmp |
| 10 | ldr \rp, = CONFIG_DEBUG_UART_PHYS |
| 11 | ldr \rv, = CONFIG_DEBUG_UART_VIRT |
| 12 | .endm |
| 13 | |
| 14 | .macro waituart,rd,rx |
| 15 | .endm |
| 16 | |
| 17 | .macro senduart,rd,rx |
| 18 | str \rd, [\rx, #0x50] @ TXDATA |
| 19 | .endm |
| 20 | |
| 21 | .macro busyuart,rd,rx |
| 22 | 1002: ldr \rd, [\rx, #0x60] @ STAT |
| 23 | tst \rd, #1 << 27 @ TXEMPTY |
| 24 | beq 1002b @ wait until transmit done |
| 25 | .endm |