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| author | Heiko Schocher <hs@denx.de> | 2017-06-07 15:33:09 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-06-12 12:37:55 (GMT) |
| commit | 5b8e76c35ec312a3f73126bd1a2d2c0965b98a9f (patch) | |
| tree | 58d5c3c3b0baaeb369f8e426f64621b0f9ad9e4b /doc/README.MPC866 | |
| parent | 4a30a93929c112af94b8e00db1382432a69d0809 (diff) | |
| download | u-boot-fsl-qoriq-5b8e76c35ec312a3f73126bd1a2d2c0965b98a9f.tar.xz | |
powerpc, 8xx: remove support for 8xx
There was for long time no activity in the 8xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 8xx,
so remove it (with a heavy heart, knowing that I remove
here the root of U-Boot).
Signed-off-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'doc/README.MPC866')
| -rw-r--r-- | doc/README.MPC866 | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/doc/README.MPC866 b/doc/README.MPC866 deleted file mode 100644 index 4707cb7..0000000 --- a/doc/README.MPC866 +++ /dev/null @@ -1,24 +0,0 @@ -The current implementation allows the user to specify the desired CPU -clock value, in MHz, via an environment variable "cpuclk". - -Four compile-time constants are used: - - CONFIG_8xx_OSCLK - input quartz clock - CONFIG_SYS_8xx_CPUCLK_MIN - minimum allowed CPU clock - CONFIG_SYS_8xx_CPUCLK_MAX - maximum allowed CPU clock - CONFIG_8xx_CPUCLK_DEFAULT - default CPU clock value - -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 the new clock-handling code is enabled if -CONFIG_8xx_CPUCLK_DEFAULT is defined. Since this mechanism supports -only MPC866 and newer CPUs, this constant MUST NOT be defined for -MPC823/850/860/862 series. The clock generation algorithm for older -chips is different and has not been implemented yet. If you need it, -your patch is welcome. |