[OpenWrt-Devel] [PATCH] ramips: add support for Intenso Memory 2 Move USB 3.0

Christian Lamparter chunkeey at googlemail.com
Sat Jan 17 15:58:03 EST 2015

On Saturday, January 17, 2015 03:09:24 PM John Crispin wrote:
> On 17/01/2015 14:49, Christian Lamparter wrote:
> > On Saturday, January 17, 2015 07:48:24 AM John Crispin wrote:
> >> On 15/01/2015 22:47, Christian Lamparter wrote:
> > my question is: should I rename the profile (and the files) to:
> > UIS700HD then?
> > I would like to keep the Intenso name, because they provided 
> > me/us/anyone with at least a (partially very useful)
> > "GPL source" for their product on their website [1].
> feel free to leave it as intenso, just make sure to add a wiki page and
> list the alternative SKUs there.
Thanks. I've started with the wiki page [0].
> >  
> > BTW: I would like to generate a ramdisk image by default too 
> > (I was thinking of adding FEATURES+=ramdisk). The reason is
> > that this would make flashing the device easier (load the
> > ramdisk image via tftp and then use sysupgrade with the
> > squashfs-sysupgrade image).
> > 
> feel free to send a patch.
> applied your patch as r44001
Thanks, I'll do that. Since this is a portable unit, I'm still looking for
a way to get access to the battery level. The "fuel gauge" sensor might be
connected via the i2c, but it might be also just the "EC" microcontroller
who has access to it.

Also, do you know of any "power-saving" features of the RT5350-SoC?
The original firmware enables several features like:
  * "SDR precharge powersave"
     - write 0x00000001 into 0x1000031c (SDR_PWR_SAVE_CNT)
     - set bit 28 in 0x10000304 (SDRAM Configuration 1)

  * "DDR self auto refresh"
     - write 0x00000001 into 0x1000031c (SDR_PWR_SAVE_CNT)
     - set bit 4 in 0x10000318

  * "CPU autofrequency"
     - write 0x001f0112 into 0x10000044 (CPU_CLK_AUTO_CFG)
     - write 0x03040101 into 0x1000003c (CPU_SYS_CLKCFG)
     - write 0x00035f41 into 0x10000040 (CLK_LUT_CFG)
     - write 0x80035f41 into 0x10000040 (CLK_LUT_CFG)
Which sounds very interesting [although, the biggest power
guzzlers are the HDD and wifi]. However, the settings to
enable the dynamic CPU frequency scaling doesn't really match
up with the RT5350 I know. For example the CPU_AUTO_CLK_EN 
Setting is controlled by bit 31 in 0x10000044. But it isn't 
enabled?! Do you know of any other manufactures who need to
enable powersaving features as well (and are doing a better
job at it)? 


[0] <http://wiki.openwrt.org/toh/intenso/m2m>
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