[linuxdc-dev] Internal flash support

[M. R. B. <mr...@0x...>]

Is now in CVS.  To enable it, select the following under the "Memory
Technology Devices (MTD)" menu:

- Memory Technology Device (MTD) support
- MTD partitioning support
- Direct char device access to MTD devices=20

RAM/ROM/Flash chip drivers:
- Detect non-CFI AMD/JEDEC-compatible flash chips
- Support for AMD/Fujitsu flash chips

Mapping drivers for chip access:
- SEGA Dreamcast internal JEDEC-compatible flash device
[Note: you do not want to select "Disable SEGAs logical partition mapping"]

To play with it, after your system has booted, "cat /proc/mtd" to get a
list of partitions and the MTD devices that they are mapped to.  If you've
compiled in DevFS support, you're good to go, or else you may need to
create the /dev/mtd[0-7] devices by hand.  Do a "man mknod" and read
linux/Documentation/devices.txt to figure out how to do this.

After you've done this, you can read (and potentially write, but I haven't
tested it and you're advised to tread carefully) flash to your heart's
content.  Note that partition 0 "System configuration" is read-only in
hardware.

To the gentleman who owns a Development station, please send me a private
e-mail, as I'm curious as to whether or not flash is mapped differently or
is bigger on your machine.

M. R.