cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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dc21285.S (842B)


      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/* arch/arm/mach-footbridge/include/mach/debug-macro.S
      3 *
      4 * Debugging macro include header
      5 *
      6 *  Copyright (C) 1994-1999 Russell King
      7 *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
      8*/
      9
     10#include <asm/hardware/dec21285.h>
     11
     12#include <mach/hardware.h>
     13	/* For EBSA285 debugging */
     14		.equ	dc21285_high, ARMCSR_BASE & 0xff000000
     15		.equ	dc21285_low,  ARMCSR_BASE & 0x00ffffff
     16
     17		.macro	addruart, rp, rv, tmp
     18		.if	dc21285_low
     19		mov	\rp, #dc21285_low
     20		.else
     21		mov	\rp, #0
     22		.endif
     23		orr	\rv, \rp, #dc21285_high
     24		orr	\rp, \rp, #0x42000000
     25		.endm
     26
     27		.macro	senduart,rd,rx
     28		str	\rd, [\rx, #0x160]	@ UARTDR
     29		.endm
     30
     31		.macro	busyuart,rd,rx
     321001:		ldr	\rd, [\rx, #0x178]	@ UARTFLG
     33		tst	\rd, #1 << 3
     34		bne	1001b
     35		.endm
     36
     37		.macro	waituartcts,rd,rx
     38		.endm
     39
     40		.macro	waituarttxrdy,rd,rx
     41		.endm