HI, Francesco Francesco schrieb: > Hartmut Hackmann ha scritto: > > Hi, Francesco > > > > Francesco schrieb: > >>> Looks like there currently are many people having problems. Allow > >>> me to give some background info: > >>> > >>> Something that is not in the datasheet: The tda10046 > >>> automatically tries to load the firmware from an eeprom at the > >>> second I2C port. This does *not* need to be triggered by the > >>> driver. The timeout seems to be very long. In the past, this > >>> happened: If the driver tries to access the tuner while the > >>> download is not finished, there is a collision on the I2C bus. > >>> This can corrupt both, the firmware and the tuner initialization. > >>> In the case of the tda8275a, the result can be that it turns off > >>> its 16MHz reference output which is used for the tda10046 as > >>> well. This blocks the i2c bus and the only way to recover is a > >>> complete power cycle. This is why i made the driver try to get > >>> the firmware as soon as possible. Otherwise it is not possible to > >>> access the tuner - at least on some boards. > >>> > >>> Few days ago, a user reported that the firmware download seems to > >>> be retriggered in some cases. This might occur if something > >>> opens the dvb device while the download is not finished. If it is > >>> the case, we need to lock the download. Another dangerous thing > >>> is the address mapping of the firmware eeprom: it is controlled > >>> by a GPIO pin. If this pin changes while the download is running, > >>> we are lost. > >>> > >>> Best regards Hartmut > >> > >> I've found a little workaround (not a solution, but...) for this > >> problem for my Asus7131H... > >> > >> Simply adding "saa7134-dvb" to /etc/modules, make a successful > >> firmware loading on boot. (My system is an Ubuntu 7.10) > >> > >> > > Could you post the relevant sections of the kernel log for both > > cases, successful and unsuccessful firmware load? Please extract the > > entire board initialization. Also: do you run a client / server > > based application (with early start of the server)? > > > > Hartmut > > > > > > > These are extract of boot log for "saa" and "tda" text... later I'll send > all system logs in both cases. > > > Relevant row for "tda" part seems is: > "[ 54.297295] tda1004x: setting up plls for 48MHz sampling clock" > the second one, wich prevent on my opinion, to load firmware correctly. > > Yes, this is what i meant! Looks like we need to "lock" the initialization procedure. I haven't done such things before so i need to do a little research first. > > tda / before: > [ 35.412245] tda829x 0-004b: setting tuner address to 61 > [ 35.492199] tda829x 0-004b: type set to tda8290+75a > [ 39.621806] tda1004x: setting up plls for 48MHz sampling clock > [ 41.912490] tda1004x: found firmware revision 0 -- invalid > [ 41.912495] tda1004x: trying to boot from eeprom > [ 44.283116] tda1004x: found firmware revision 0 -- invalid > [ 44.283122] tda1004x: waiting for firmware upload... > [ 54.297295] tda1004x: setting up plls for 48MHz sampling clock > [ 56.583964] tda1004x: found firmware revision 0 -- invalid > [ 56.583968] tda1004x: trying to boot from eeprom > [ 58.950592] tda1004x: found firmware revision 0 -- invalid > [ 58.950597] tda1004x: waiting for firmware upload... > [ 71.443661] tda1004x: found firmware revision 0 -- invalid > [ 71.443665] tda1004x: firmware upload failed > [ 73.543492] tda1004x: found firmware revision 80 -- invalid > [ 73.543496] tda1004x: firmware upload failed > > tda / after: > [ 35.101428] tda829x 0-004b: setting tuner address to 61 > [ 35.185381] tda829x 0-004b: type set to tda8290+75a > [ 39.295055] tda1004x: setting up plls for 48MHz sampling clock > [ 41.581753] tda1004x: found firmware revision 0 -- invalid > [ 41.581756] tda1004x: trying to boot from eeprom > [ 43.948412] tda1004x: found firmware revision 0 -- invalid > [ 43.948415] tda1004x: waiting for firmware upload... > [ 56.405359] tda1004x: found firmware revision 20 -- ok > [ 71.360886] tda1004x: setting up plls for 48MHz sampling clock > [ 71.664713] tda1004x: found firmware revision 20 -- ok > > <snip> Thanks for the info! Best regards Hartmut _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
