u-boot/board/netstal/mcu25
Stefan Roese 39ff7d5f4c POST: Remove duplicated post_hotkey_pressed() functions
This patch introduces a weak default function for post_hotkey_pressed(),
returning 0, for boards without hotkey support. The long-running tests
won't be started on those boards. This default function was implemented
in many board directories. By implementing this weak default we can
remove all those duplicate versions.

Boards with hotkey support, can override this weak default function
by defining one in their board specific code.

Signed-off-by: Stefan Roese <sr@denx.de>
2009-12-07 22:44:31 +01:00
..
config.mk Conding style cleanup 2008-03-16 01:12:58 +01:00
Makefile Cleanup out-or-tree building for some boards (.depend) 2008-07-02 23:49:18 +02:00
mcu25.c POST: Remove duplicated post_hotkey_pressed() functions 2009-12-07 22:44:31 +01:00
README.txt Conding style cleanup 2008-03-16 01:12:58 +01:00

MCU25 Configuration Details

Memory Bank 0 -- Flash chip
---------------------------

0xfff00000 - 0xffffffff

The flash chip is really only 512Kbytes, but the high address bit of
the 1Meg region is ignored, so the flash is replicated through the
region. Thus, this is consistent with a flash base address 0xfff80000.

The placement at the end is to be consistent with reset behavior,
where the processor itself initially uses this bus to load the branch
vector and start running.

On-Chip Memory
--------------

0xf4000000 - 0xf4000fff

The 405GPr includes a 4K on-chip memory that can be placed however
software chooses. I choose to place the memory at this address, to
keep it out of the cachable areas.


Internal Peripherals
--------------------

0xef600300 - 0xef6008ff

These are scattered various peripherals internal to the PPC405GPr
chip.

Chip-Select 2: Flash Memory
---------------------------

0x70000000

Chip-Select 3: CAN Interface
----------------------------
0x7800000


Chip-Select 4: IMC-bus standard
-------------------------------

Our IO-Bus (slow version)


Chip-Select 5: IMC-bus fast (inactive)
--------------------------------------

Our IO-Bus (fast, but not yet use)


Memory Bank 1 -- SDRAM
-------------------------------------

0x00000000 - 0x2ffffff   # Default 64 MB