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| author | wdenk <wdenk> | 2004-01-31 20:06:54 +0000 |
|---|---|---|
| committer | wdenk <wdenk> | 2004-01-31 20:06:54 +0000 |
| commit | 75d1ea7f6aa00c280c495a1ff6502f091c4244fe (patch) | |
| tree | bb1ee058f8886ae42cb85a6b2c82f3d6b18661bf /doc | |
| parent | 6876609446980c3055bbd32c195a63330e21d8e6 (diff) | |
| download | u-boot-imx-75d1ea7f6aa00c280c495a1ff6502f091c4244fe.zip u-boot-imx-75d1ea7f6aa00c280c495a1ff6502f091c4244fe.tar.gz u-boot-imx-75d1ea7f6aa00c280c495a1ff6502f091c4244fe.tar.bz2 | |
Fix variable CPU clock for MPC859/866 systems for low CPU clocks
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.MPC866 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/README.MPC866 b/doc/README.MPC866 index 1464a40..42abac8 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 |