Stefan Roese a47a12becf Move arch/ppc to arch/powerpc 14 years ago
..
Makefile ceaa62a6f0 ppc4xx: Fix problems in some ppc4xx board Makefiles 14 years ago
README.txt db01a2ea99 * Patch by Stephen Williams, 01 Apr 2004: 20 years ago
config.mk db01a2ea99 * Patch by Stephen Williams, 01 Apr 2004: 20 years ago
flash.c 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
host_bridge.c e2ffd59b4d * Code cleanup, mostly for GCC-3.3.x 19 years ago
init.S d1c3b27525 ppc4xx: Big cleanup of PPC4xx defines 14 years ago
jse.c a47a12becf Move arch/ppc to arch/powerpc 14 years ago
jse_priv.h db01a2ea99 * Patch by Stephen Williams, 01 Apr 2004: 20 years ago
sdram.c a47a12becf Move arch/ppc to arch/powerpc 14 years ago

README.txt

JSE 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.


Memory Bank 1 -- SystemACE Controller
-------------------------------------

0xf0000000 - 0xf00fffff

The SystemACE chip is along on peripheral bank CS#1. We don't need
much space, but 1Meg is the smallest we can configure the chip to
allocate. We need it far away from the flash region, because this
region is set to be non-cached.


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

0xef600300 - 0xef6008ff

These are scattered various peripherals internal to the PPC405GPr
chip.

SDRAM
-----

0x00000000 - 0x07ffffff (128 MBytes)