diff options
| -rw-r--r-- | arch/arm/mach-mx5/cpu.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/cpu.c b/arch/arm/mach-mx5/cpu.c index 2d37785e385..eaacb6e9b5d 100644 --- a/arch/arm/mach-mx5/cpu.c +++ b/arch/arm/mach-mx5/cpu.c @@ -70,6 +70,25 @@ int mx51_revision(void) } EXPORT_SYMBOL(mx51_revision); +#ifdef CONFIG_NEON + +/* + * All versions of the silicon before Rev. 3 have broken NEON implementations. + * Dependent on link order - so the assumption is that vfp_init is called + * before us. + */ +static int __init mx51_neon_fixup(void) +{ + if (mx51_revision() < MX51_CHIP_REV_3_0 && (elf_hwcap & HWCAP_NEON)) { + elf_hwcap &= ~HWCAP_NEON; + pr_info("Turning off NEON support, detected broken NEON implementation\n"); + } + return 0; +} + +late_initcall(mx51_neon_fixup); +#endif + static int __init post_cpu_init(void) { unsigned int reg; |