diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 18 |
1 files changed, 17 insertions, 1 deletions
@@ -415,12 +415,28 @@ The following options need to be configured: Define exactly one of CONFIG_MPC8240, CONFIG_MPC8245 -- 8xx CPU Options: (if using an 8xx cpu) +- 8xx CPU Options: (if using an MPC8xx cpu) Define one or more of CONFIG_8xx_GCLK_FREQ - if get_gclk_freq() cannot work e.g. if there is no 32KHz reference PIT/RTC clock +- 859/866 CPU options: (if using a MPC859 or MPC866 CPU): + CFG_866_OSCCLK + CFG_866_CPUCLK_MIN + CFG_866_CPUCLK_MAX + CFG_866_CPUCLK_DEFAULT + See doc/README.MPC866 + + CFG_MEASURE_CPUCLK + + Define this to measure the actual CPU clock instead + of relying on the correctness of the configured + values. Mostly useful for board bringup to make sure + the PLL is locked at the intended frequency. Note + that this requires a (stable) reference clock (32 kHz + RTC clock), + - Linux Kernel Interface: CONFIG_CLOCKS_IN_MHZ |