tree 1e04c819590e93ddde96eba2f95deb6c41a82f93
parent 1b294b7a932aa89c5991e8b200616934849dc3c6
author Ed Swarthout <Ed.Swarthout@freescale.com> 1364197209 +0000
committer Andy Fleming <afleming@freescale.com> 1369432451 -0500

powerpc/qixis: add clock measurement registers

QIXIS includes frequency measurement functions for each major processor
clock input. After reset (and after clocks are stable), QIXIS measures
the clocks against a reference frequency and stores the results in
CLK_FREQ registers. A base register supplies a multiplier which allows
directly obtaining the measured value, without requiring knowledge of
the target system or QIXIS core frequency.

Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>