u-boot/arch/x86
Vadim Bendebury 7c71034d3c x86: Provide tick counter and frequency reference for Intel core architecture
Some u-boot modules rely on availability of get_ticks() and
get_tbclk() functions, reporting a free running clock and its
frequency respectively. Traditionally these functions return number
and frequency of timer interrupts.

Intel's core architecture processors however are known to run the
rdtsc instruction at a constant rate of the so called 'Max Non Turbo
ratio' times the external clock frequency which is 100MHz. This is
just as good for the timer tick functions in question.

Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06 14:30:43 -08:00
..
cpu x86: Provide tick counter and frequency reference for Intel core architecture 2012-12-06 14:30:43 -08:00
dts x86: fdt: Create basic .dtsi file for coreboot 2012-12-06 14:30:42 -08:00
include/asm x86: Add back cold- and warm-boot flags 2012-12-06 14:30:42 -08:00
lib x86: Add support for CONFIG_OF_CONTROL 2012-12-06 14:30:42 -08:00
config.mk x86: Wrap small helper functions from libgcc to avoid an ABI mismatch 2011-11-29 21:31:24 +11:00