Dear All, No any advices or comments? :( Thanks!!
On Wed, 2007-07-18 at 19:49 +0800, alex zhang wrote: > Dear all, > > Now, the status of developing A1200 seems stagnating. The most important > thing is to make 1) TF card 2)or USB-NET, 3) or Bluetooth works. So > that, we can have a rootfs and a shell for debugging other drivers and > applications. > Since I found MMC driver in Moto released kernel is broken, but I can > mount nfsroot via USB-NET. So, I think we should to make USB-NET or > bluetooth work first. But I have no idea how to make them work, I am > just studying the codes in Moto released kernel. So, any your help and > hint is appreciated! Thanks!! > > > I have not investigated the neptune/GSM driver yet, the bp handshake > > is simpler on a1200 than on a780, but i have no idea if the usb > > demultiplexer is the same. > > > > a1200/e2/e6 uses a completely different EMU, called EOC, it is an i2c > > connected chip instead of the analog switches controlled by pcap we > > have on a780. OpenEZX has no code for it yet. > > Dear Daniel, > > To USB-NET, As you mentioned above, in order to make USB work, we should > control the EOC via I2C to change USB mode(?). But the pxa27x_udc.c is > broken on A1200, why? > > > Me, Alex and Konstantin tried to put the TF to work, but without > > success, we powered up the card by setting the vaux* register on pcap, > > but we are still missing something as we cant read anything from the > > card. > > To MMC driver, I compared the A780's schematic with A1200's, seem only > different is that A1200 uses MMC_D3 for detection pin when MMC driver > starting(A780 supports hotplug, A1200 doesn't support). So, I think MMC > driver for A780 should work for A1200 if we assumes that TF card always > is in the slot. I will have a try by using A780 source code. > In moto released kernel, mmc driver can find a card in slot via MMC_D3 > but always sends CMD55+CMD41 to identify the card, and always failed. > > To Bluetooth, as you mentioned on Wiki, need to "send AT EBTP=1 to BP > (power on bcm2035)". Since the power of bluetooth is supplied by V6 on > A1200(seems by Vaux1 on A780?), is it possible power on bcm2035 by > enable V6 instead of send command to BP? If yes, I think we can make > bluetooth works first. Any comment? > > Any comments and advices are appreciated! > > Regards, > Alexzhang > > >
