Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
34 lines
643 B
ArmAsm
34 lines
643 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Broadcom BCM63xx low-level UART debug
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*
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* Copyright (C) 2014 Broadcom Corporation
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*/
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#include <linux/serial_bcm63xx.h>
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.macro addruart, rp, rv, tmp
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ldr \rp, =CONFIG_DEBUG_UART_PHYS
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ldr \rv, =CONFIG_DEBUG_UART_VIRT
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.endm
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.macro senduart, rd, rx
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/* word access do not work */
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strb \rd, [\rx, #UART_FIFO_REG]
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.endm
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.macro waituarttxrdy, rd, rx
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1001: ldr \rd, [\rx, #UART_IR_REG]
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tst \rd, #(1 << UART_IR_TXEMPTY)
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beq 1001b
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.endm
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.macro waituartcts, rd, rx
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.endm
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.macro busyuart, rd, rx
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1002: ldr \rd, [\rx, #UART_IR_REG]
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tst \rd, #(1 << UART_IR_TXTRESH)
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beq 1002b
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.endm
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