1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* arch/arm/include/debug/pl01x.S
4 * Debugging macro include header
6 * Copyright (C) 1994-1999 Russell King
7 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
9 #include <linux/amba/serial.h>
11 #ifdef CONFIG_DEBUG_UART_PHYS
12 .macro addruart, rp, rv, tmp
13 ldr \rp, =CONFIG_DEBUG_UART_PHYS
14 ldr \rv, =CONFIG_DEBUG_UART_VIRT
19 strb \rd, [\rx, #UART01x_DR]
22 .macro waituartcts,rd,rx
25 .macro waituarttxrdy,rd,rx
26 1001: ldr \rd, [\rx, #UART01x_FR]
27 ARM_BE8( rev \rd, \rd )
28 tst \rd, #UART01x_FR_TXFF
33 1001: ldr \rd, [\rx, #UART01x_FR]
34 ARM_BE8( rev \rd, \rd )
35 tst \rd, #UART01x_FR_BUSY