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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Broadcom BCM63xx low-level UART debug
- *
- * Copyright (C) 2014 Broadcom Corporation
- */
- #include <linux/serial_bcm63xx.h>
- .macro addruart, rp, rv, tmp
- ldr \rp, =CONFIG_DEBUG_UART_PHYS
- ldr \rv, =CONFIG_DEBUG_UART_VIRT
- .endm
- .macro senduart, rd, rx
- /* word access do not work */
- strb \rd, [\rx, #UART_FIFO_REG]
- .endm
- .macro waituarttxrdy, rd, rx
- 1001: ldr \rd, [\rx, #UART_IR_REG]
- tst \rd, #(1 << UART_IR_TXEMPTY)
- beq 1001b
- .endm
- .macro waituartcts, rd, rx
- .endm
- .macro busyuart, rd, rx
- 1002: ldr \rd, [\rx, #UART_IR_REG]
- tst \rd, #(1 << UART_IR_TXTRESH)
- beq 1002b
- .endm
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