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/* * Broadcom BCM63xx low-level UART debug * * Copyright (C) 2014 Broadcom Corporation * * 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 <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 waituart, rd, rx 1001: ldr \rd, [\rx, #UART_IR_REG] tst \rd, #(1 << UART_IR_TXEMPTY) beq 1001b .endm .macro busyuart, rd, rx 1002: ldr \rd, [\rx, #UART_IR_REG] tst \rd, #(1 << UART_IR_TXTRESH) beq 1002b .endm