/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright (C) 2003-2005 SAN People * * Debugging macro include header*/ #define AT91_DBGU_SR (0x14) /* Status Register */#define AT91_DBGU_THR (0x1c) /* Transmitter Holding Register */#define AT91_DBGU_TXRDY (1 << 1) /* Transmitter Ready */#define AT91_DBGU_TXEMPTY (1 << 9) /* Transmitter Empty */ .macro addruart, rp, rv, tmp ldr \rp, =CONFIG_DEBUG_UART_PHYS @ System peripherals (phys address) ldr \rv, =CONFIG_DEBUG_UART_VIRT @ System peripherals (virt address) .endm .macro senduart,rd,rx strb \rd, [\rx, #(AT91_DBGU_THR)] @ Write to Transmitter Holding Register .endm .macro waituarttxrdy,rd,rx1001: ldr \rd, [\rx, #(AT91_DBGU_SR)] @ Read Status Register tst \rd, #AT91_DBGU_TXRDY @ DBGU_TXRDY = 1 when ready to transmit beq 1001b .endm .macro waituartcts,rd,rx .endm .macro busyuart,rd,rx1001: ldr \rd, [\rx, #(AT91_DBGU_SR)] @ Read Status Register tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete beq 1001b .endm
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2003-2005 SAN People
*
* Debugging macro include header
*/
#define AT91_DBGU_SR (0x14) /* Status Register */
#define AT91_DBGU_THR (0x1c) /* Transmitter Holding Register */
#define AT91_DBGU_TXRDY (1 << 1) /* Transmitter Ready */
#define AT91_DBGU_TXEMPTY (1 << 9) /* Transmitter Empty */
.macro addruart, rp, rv, tmp
ldr \rp, =CONFIG_DEBUG_UART_PHYS @ System peripherals (phys address)
ldr \rv, =CONFIG_DEBUG_UART_VIRT @ System peripherals (virt address)
.endm
.macro senduart,rd,rx
strb \rd, [\rx, #(AT91_DBGU_THR)] @ Write to Transmitter Holding Register
.endm
.macro waituarttxrdy,rd,rx
1001: ldr \rd, [\rx, #(AT91_DBGU_SR)] @ Read Status Register
tst \rd, #AT91_DBGU_TXRDY @ DBGU_TXRDY = 1 when ready to transmit
beq 1001b
.endm
.macro waituartcts,rd,rx
.endm
.macro busyuart,rd,rx
1001: ldr \rd, [\rx, #(AT91_DBGU_SR)] @ Read Status Register
tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete
beq 1001b
.endm