[U-Boot] [PATCH 5/5] x86: Add ilog2 to bitops

ilog2 is required by AHCI driver

Signed-off-by: Graeme Russ graeme.russ@gmail.com --- arch/x86/include/asm/bitops.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index c7a38f2..5a7e4cb 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -351,6 +351,11 @@ static __inline__ int ffs(int x) } #define PLATFORM_FFS

+static inline int __ilog2(unsigned int x) +{ + return generic_fls(x) - 1; +} + /** * hweightN - returns the hamming weight of a N-bit word * @x: the word to weigh