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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clps711x.S (767B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru>
      4 */
      5
      6#ifndef CONFIG_DEBUG_CLPS711X_UART2
      7#define CLPS711X_UART_PADDR	(0x80000000 + 0x0000)
      8#define CLPS711X_UART_VADDR	(0xfeff4000 + 0x0000)
      9#else
     10#define CLPS711X_UART_PADDR	(0x80000000 + 0x1000)
     11#define CLPS711X_UART_VADDR	(0xfeff4000 + 0x1000)
     12#endif
     13
     14#define SYSFLG		(0x0140)
     15#define SYSFLG_UBUSY	(1 << 11)
     16#define UARTDR		(0x0480)
     17
     18	.macro	addruart, rp, rv, tmp
     19	ldr	\rv, =CLPS711X_UART_VADDR
     20	ldr	\rp, =CLPS711X_UART_PADDR
     21	.endm
     22
     23	.macro	waituartcts,rd,rx
     24	.endm
     25
     26	.macro	waituarttxrdy,rd,rx
     27	.endm
     28
     29	.macro	senduart,rd,rx
     30	str	\rd, [\rx, #UARTDR]
     31	.endm
     32
     33	.macro	busyuart,rd,rx
     341001:	ldr	\rd, [\rx, #SYSFLG]
     35	tst	\rd, #SYSFLG_UBUSY
     36	bne	1001b
     37	.endm