mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 00:05:11 +07:00
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 <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
47 lines
1.1 KiB
ArmAsm
47 lines
1.1 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* arch/arm/mach-imx/include/mach/debug-macro.S
|
|
*
|
|
* Debugging macro include header
|
|
*
|
|
* Copyright (C) 1994-1999 Russell King
|
|
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
|
|
*/
|
|
|
|
#include <asm/assembler.h>
|
|
#include "imx-uart.h"
|
|
|
|
/*
|
|
* FIXME: This is a copy of IMX_IO_P2V in hardware.h, and needs to
|
|
* stay sync with that. It's hard to maintain, and should be fixed
|
|
* globally for multi-platform build to use a fixed virtual address
|
|
* for low-level debug uart port across platforms.
|
|
*/
|
|
#define IMX_IO_P2V(x) ( \
|
|
(((x) & 0x80000000) >> 7) | \
|
|
(0xf4000000 + \
|
|
(((x) & 0x50000000) >> 6) + \
|
|
(((x) & 0x0b000000) >> 4) + \
|
|
(((x) & 0x000fffff))))
|
|
|
|
#define UART_VADDR IMX_IO_P2V(UART_PADDR)
|
|
|
|
.macro addruart, rp, rv, tmp
|
|
ldr \rp, =UART_PADDR @ physical
|
|
ldr \rv, =UART_VADDR @ virtual
|
|
.endm
|
|
|
|
.macro senduart,rd,rx
|
|
ARM_BE8(rev \rd, \rd)
|
|
str \rd, [\rx, #0x40] @ TXDATA
|
|
.endm
|
|
|
|
.macro waituart,rd,rx
|
|
.endm
|
|
|
|
.macro busyuart,rd,rx
|
|
1002: ldr \rd, [\rx, #0x98] @ SR2
|
|
ARM_BE8(rev \rd, \rd)
|
|
tst \rd, #1 << 3 @ TXDC
|
|
beq 1002b @ wait until transmit done
|
|
.endm
|