mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-08 10:31:43 +01:00
Thomas Gleixner
d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Enrico Weigelt <[email protected]> Reviewed-by: Kate Stewart <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
31 lines
602 B
ArmAsm
31 lines
602 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 waituart, 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 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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