From 75d1ea7f6aa00c280c495a1ff6502f091c4244fe Mon Sep 17 00:00:00 2001 From: wdenk Date: Sat, 31 Jan 2004 20:06:54 +0000 Subject: Fix variable CPU clock for MPC859/866 systems for low CPU clocks --- doc/README.MPC866 | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'doc/README.MPC866') diff --git a/doc/README.MPC866 b/doc/README.MPC866 index 1464a408c..42abac805 100644 --- a/doc/README.MPC866 +++ b/doc/README.MPC866 @@ -12,6 +12,10 @@ If the "cpuclk" environment variable value is within the CPUCLK_MIN / CPUCLK_MAX limits, the specified value is used. Otherwise, the default CPU clock value is set. +Please make sure you understand what you are doing, and understand +the restrictions of your hardware (board, processor). For example, +ethernet will stop working for CPU clock frequencies below 25 MHz. + Please note that for now the new clock-handling code has been enabled for the TQM866M board only, even though it should be pretty much common for other MPC859 / MPC866 based boards also. Our intention -- cgit v1.2.3