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authorwdenk <wdenk>2004-09-28 17:59:53 +0000
committerwdenk <wdenk>2004-09-28 17:59:53 +0000
commit66ca92a5ba882807ba8ed8f772c0fc22b25976cc (patch)
tree45f62d161cf60f9b5be79427073c979d99a41be2 /README
parent4ec3a7f0fdbad19ad4fa0172b97451b98e82316a (diff)
* Patch by Yuli Barcohen, 13 Jul 2004:
Allow clock setting on MPC866/MPC885 series chips according to environment variable `cpuclk' * Patch by Yuli Barcohen, 20 Apr 2004: Remove unnecessary redefine of CPM_DATAONLY_SIZE for MPC826x
Diffstat (limited to 'README')
-rw-r--r--README17
1 files changed, 9 insertions, 8 deletions
diff --git a/README b/README
index 570b668a8b9..4485b515d6a 100644
--- a/README
+++ b/README
@@ -339,16 +339,17 @@ The following options need to be configured:
CONFIG_MPC8240, CONFIG_MPC8245
- 8xx CPU Options: (if using an MPC8xx cpu)
- Define one or more of
- CONFIG_8xx_GCLK_FREQ - if get_gclk_freq() cannot work
+ CONFIG_8xx_GCLK_FREQ - deprecated: CPU clock if
+ get_gclk_freq() cannot work
e.g. if there is no 32KHz
reference PIT/RTC clock
+ CONFIG_8xx_OSCLK - PLL input clock (either EXTCLK
+ or XTAL/EXTAL)
-- 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
+- 859/866/885 CPU options: (if using a MPC859 or MPC866 or MPC885 CPU):
+ CFG_8xx_CPUCLK_MIN
+ CFG_8xx_CPUCLK_MAX
+ CONFIG_8xx_CPUCLK_DEFAULT
See doc/README.MPC866
CFG_MEASURE_CPUCLK
@@ -358,7 +359,7 @@ The following options need to be 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),
+ RTC clock or CFG_8XX_XIN)
- Linux Kernel Interface:
CONFIG_CLOCKS_IN_MHZ