diff options
Diffstat (limited to 'src/northbridge/amd/amdfam10/inline_helper.c')
-rw-r--r-- | src/northbridge/amd/amdfam10/inline_helper.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdfam10/inline_helper.c b/src/northbridge/amd/amdfam10/inline_helper.c new file mode 100644 index 0000000000..7f260318f7 --- /dev/null +++ b/src/northbridge/amd/amdfam10/inline_helper.c @@ -0,0 +1,31 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 Damien Zammit <damien@zamaudio.com> + * + * 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; version 2 of the License. + * + * 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. + */ + +#include <arch/cpu.h> + +static inline uint8_t is_fam15h(void) +{ + uint8_t fam15h = 0; + uint32_t family; + + family = cpuid_eax(0x80000001); + family = ((family & 0xf00000) >> 16) | ((family & 0xf00) >> 8); + + if (family >= 0x6f) + /* Family 15h or later */ + fam15h = 1; + + return fam15h; +} |