diff --git a/arch/arm/include/asm/errata.h b/arch/arm/include/asm/errata.h new file mode 100644 index 000000000..e2ffd8736 --- /dev/null +++ b/arch/arm/include/asm/errata.h @@ -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" + ); +}