u-boot-brain/board/amcc
Stefan Roese 212ed90615 ppc4xx: Canyonlands: Disable the RTC M41T62 square wave output
This patch disables the square wave output of the M41T62 RTC used on
Canyonlands & Glacier. Here the explanation:

The serial real-time clock part used in the design is an
STMicro M41T62. This part has a full-time 32KHz square wave
output that is connected to the TmrClk input to the
processor. The default state for this square wave output is
enabled so the output runs continuously when the board is
powered normally and also from the battery. The TmrClk input
to the processor goes to ground when the power is removed
from the board/processor, and therefore the running square
wave output is driving ground which drains the battery quickly.

Signed-off-by: Stefan Roese <sr@denx.de>
2008-06-12 15:50:31 +02:00
..
acadia Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
bamboo Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
bubinga Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
canyonlands ppc4xx: Canyonlands: Disable the RTC M41T62 square wave output 2008-06-12 15:50:31 +02:00
common ppc4xx: Update AMCC Bamboo 440EP support 2007-07-31 10:24:56 +02:00
ebony Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
katmai ppc4xx: Remove implementations of testdram() 2008-06-03 20:22:24 +02:00
kilauea ppc4xx: Change Kilauea to use the common DDR2 init function 2008-06-03 20:22:03 +02:00
luan ppc4xx: Remove implementations of testdram() 2008-06-03 20:22:24 +02:00
makalu ppc4xx: Remove superfluous dram_init() call or replace it by initdram() 2008-06-03 20:22:19 +02:00
ocotea Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
sequoia Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
taihu Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
taishan ppc4xx: Remove implementations of testdram() 2008-06-03 20:22:24 +02:00
walnut Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
yosemite Change initdram() return type to phys_size_t 2008-06-12 08:50:18 +02:00
yucca ppc4xx: Remove implementations of testdram() 2008-06-03 20:22:24 +02:00