sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

arm: add errata workarounds 

Header only implementation, so they can be pulled
into the individual SoC cpu init functions.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Lucas Stach 2014-06-25 09:18:18 +02:00 committed by Sascha Hauer
parent 40d89c4977
commit 2412f46dd3
1 changed files with 67 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
arch/arm/include/asm/errata.h Normal file
View File

@ -0,0 +1,67 @@
/*
* Copyright (C) 2014 Lucas Stach, Pengutronix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
static inline void enable_arm_errata_716044_war(void)
{
__asm__ __volatile__ (
"mrc p15, 0, r0, c1, c0, 0\n"
"orr r0, r0, #1 << 11\n"
"mcr p15, 0, r0, c1, c0, 0\n"
);
}
static inline void enable_arm_errata_742230_war(void)
{
__asm__ __volatile__ (
"mrc p15, 0, r0, c15, c0, 1\n"
"orr r0, r0, #1 << 4\n"
"mcr p15, 0, r0, c15, c0, 1\n"
);
}
static inline void enable_arm_errata_743622_war(void)
{
__asm__ __volatile__ (
"mrc p15, 0, r0, c15, c0, 1\n"
"orr r0, r0, #1 << 6\n"
"mcr p15, 0, r0, c15, c0, 1\n"
);
}
static inline void enable_arm_errata_751472_war(void)
{
__asm__ __volatile__ (
"mrc p15, 0, r0, c15, c0, 1\n"
"orr r0, r0, #1 << 11\n"
"mcr p15, 0, r0, c15, c0, 1\n"
);
}
static inline void enable_arm_errata_761320_war(void)
{
__asm__ __volatile__ (
"mrc p15, 0, r0, c15, c0, 1\n"
"orr r0, r0, #1 << 21\n"
"mcr p15, 0, r0, c15, c0, 1\n"
);
}
static inline void enable_arm_errata_794072_war(void)
{
__asm__ __volatile__ (
"mrc p15, 0, r0, c15, c0, 1\n"
"orr r0, r0, #1 << 4\n"
"mcr p15, 0, r0, c15, c0, 1\n"
);
}