Initial import of qemu-2.4.1HEADmaster

1 files changed, 48 insertions, 0 deletions

diff --git a/roms/u-boot/board/jse/README.txt b/roms/u-boot/board/jse/README.txt
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+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)