[E3-hacking] Adding write support to pbltool

Jonathan McDowell noodles at earth.li
Sat Jan 28 10:16:33 GMT 2006

On Sat, Jan 28, 2006 at 01:09:06AM +0000, David Given wrote:
> On Friday 27 January 2006 23:16, Jonathan McDowell wrote:
> [...]
> > I haven't looked at the code, but my notes say NOR flash is at 0x0,
> > SDRAM is at 0x10000000 and SRAM is at 0x20000000.
> That's different from the E2. Do you know if the jump-to opcode works
> on the E2's version of pbl? Because while pblq can write to RAM and
> flash, it can't execute anything.

I believe you can jump to code in SRAM, but not SDRAM. So you'd load
your kernel into SDRAM, load a small piece of setup code into SRAM and
jump to that. It would setup registers as appropriate and jump to the


          Ever notice how fast Windows runs? Neither did I...
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