Fw: [Qemu-devel] PXA27x processor support (XScale)

Wed Feb 7 14:10:35 UTC 2007

M. Warner Losh wrote:
> FYI.  This looks interesting.
> 
> Warner
> 

I used thunderbird on windows xp. If the .eml file comes up blank then
you might want to open it in your favourite Unicode8 editor.

And yes, this does look interesting.

I pasted the e-mail below, in case anyone lacks the unicode 8 editor.

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Date: Wed, 7 Feb 2007 03:19:58 +0100
From: "andrzej zaborowski" <balrogg at gmail.com>
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Subject: [Qemu-devel] PXA27x processor support (XScale)
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	Tue, 06 Feb 2007 19:20:32 -0700 (MST)

<div class="moz-text-flowed" style="font-family: -moz-fixed">Hi,
  for anybody interested I uploaded a patch containing support for
Intel's PXA270 processor emulation for qemu. The patch is against
current CVS (or 0.9.0) and you can find it at

http://www.zabor.org/balrog/qemu-pxa270-and-more.patch

(450 kB). PXA is a series of embedded processors used in PDAs, mobile
phones and other devices. PXA is an ARM based system-on-chip. 27x is
the newest out of the ones produced by Intel. PXA 25x and 260 devices
can be emulated using the same code. Main additions are:

 - On-chip peripherals: DMA, interrupt controller, GPIOs, sysem
timers, memory manager, clocks manager, power manager, LCD controller,
PCMCIA cards controller, MMC/SD host controller, I2C device, USB host
(OHCI), I2S controller, SSP controller, UARTs, an RTC.

 - NAND memory emulation - should work for all chips supported by
Linux given the ID of the chip to emulate (small or large page).
 - PCMCIA bus with hotplugging (added "info pcmcia" command for
listing sockets and inserted cards).
 - an IBM/hitachi microdrive, reuses existing IDE code adding the
CF-ATA command set.
 - ADS7846 touchscreen controller from Texas Instruments (used in maaany
PDAs).
 - Wolfson WM8750 audio codec chip (I2C slave).
 - Maxim MAX1111 ADC chip.
 - Maxim MAX7310 gpio expander chip (I2C slave).
 - SD card emulator (unchanged from the omap support patch)
 - iwMMXt coprocessor support (untested).
 - some bugfixes.

I'm posting this as is because I won't have time to make a final
clean-up and I was asked for it by some persons who want to emulate
pxa270 based devices. I also want to avoid duplicating code. One case
of duplication is the I2C bus, there was a different I2C bus recently
merged in qemu. Our implementation is slightly more detailed (as need
by some I2C hosts) and does some buffering, but is 8-bit only.
(hw/i2c.h should probably be made into a template that implements 8
and 16 bit i2c included two time from vl.h).

Regards,
Andrew

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-- 
Sten Daniel Soersdal