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From: somshekar@celestialsys.com (Somshekar ChandrashekarKadam)
To: linux-arm-kernel@lists.infradead.org
Subject: No subject
Date: Mon, 7 Sep 2009 19:37:44 +0530	[thread overview]
Message-ID: <5af5975c16d54553aca8541160715298@dr116.cyberspaceindia.com> (raw)

Hi Catalin Marinas,

I am working on ARM1176 Realview board.
Kernel stable arm 2.6.28

My first query

I think reboot command is not implemented. ?

Work done locally here.

Implemented reboot by setting  8th bit of SYS_RESETCTL (reset control register 0x10000040). It works fine when given command reboot.

Issue Faced

ASLA works fine when done hard poweroff and poweron. ALSA detected properly and works fine.When I do a soft reboot using reboot command.  when kernel boots up it doesn't detect ALSA device itself with the
following messages. It is not able to read AC97 Register failing
because of timeout. I tried increasing the timeout and udelay still the
same case. Messages are shown below a the end.I also tried setting the various depth of a soft reset like 
(1=SYSRST rest logic tile, 2=PLLLOCK reset PLL, 4=PBRESET board reset,
same as pressing reset button). still ALSA does not work.Now I am confused on this. Please throw some light on this or any pointer will be useful.It is not able to read AC97 Register failing
because of timeout. routine (/*
 * Read an AC'97 register.
 */
static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)) 
I hope i have made myself clear. 
Thanks In Advance

Messages when ALSA not detected

====================================================

When sound doesn't work I see following in boot log:

Advanced Linux Sound Architecture Driver Version 1.0.18rc3.
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 7c)
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 7e)
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 7c)
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 7e)
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 1c)
port 1 high speed
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 7c)
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 7e)
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back (0 != 1c)
usb 1-1: new high speed USB device using isp1760 and address 2
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: ac97 read back fail.  retry
aaci-pl041 fpga:04: wrong ac97 register read back 


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             reply	other threads:[~2009-09-07 14:07 UTC|newest]

Thread overview: 88+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-07 14:07 Somshekar ChandrashekarKadam [this message]
  -- strict thread matches above, loose matches on Subject: below --
2018-07-06 21:16 No subject Santosh Shilimkar
2018-07-06 21:16 ` Santosh Shilimkar
2018-07-06 21:16 ` Santosh Shilimkar
2018-07-06 21:18   ` Santosh Shilimkar
2018-06-23 21:08 David Lechner
2018-05-04 20:06 Bjorn Helgaas
2018-04-20  8:02 Christoph Hellwig
2018-04-16  1:22 Andrew Worsley
2017-11-30 10:25 Mary Cuevas
2017-08-22  1:38 Nicholas Piggin
2017-06-26 13:16 [PATCH] arm64: use readq() instead of readl() to read 64bit entry_point Luc Van Oostenryck
2017-07-03 23:46 ` No subject Khuong Dinh
2017-06-04 11:59 Yury Norov
     [not found] <CAMj-D2DO_CfvD77izsGfggoKP45HSC9aD6auUPAYC9Yeq_aX7w@mail.gmail.com>
2017-05-04 16:44 ` gengdongjiu
2017-01-31  7:58 Andy Gross
2016-12-01 10:00 Ramana Radhakrishnan
2016-11-11  3:38 Chunyan Zhang
2016-09-30 14:37 Maxime Ripard
2016-07-10  9:24 Neil Armstrong
2016-04-22  8:25 Daniel Lezcano
2016-04-22  8:27 ` Daniel Lezcano
2016-04-11  7:51 Paul Walmsley
2015-12-13 21:57 何旦洁
2015-10-27  0:44 xuyiping
     [not found] <E1ZqY3A-0004Mt-KH@feisty.vs19.net>
2015-10-26  3:21 ` Jiada Wang
2015-09-01 14:14 Mika Penttilä
2015-09-01 15:22 ` Fabio Estevam
2015-07-22 14:05 Chunfeng Yun
2015-07-15  9:32 Yuan Yao
2015-05-18 20:00 raghu MG
2015-04-21 10:18 Ard Biesheuvel
2015-02-26 16:56 Jorge Ramirez-Ortiz
2015-02-18 16:14 Lee Jones
2014-10-28 14:13 Mark Rutland
2014-09-22 19:41 Santosh Shilimkar
2014-09-22  7:45 Jingchang Lu
2014-07-09 17:49 Sebastian Andrzej Siewior
2014-05-24  1:21 Loc Ho
2014-05-12 16:40 Santosh Shilimkar
2014-05-12 16:38 Santosh Shilimkar
2014-02-22 15:53 Hans de Goede
2014-01-21  4:09 John Tobias
2014-01-16 16:11 Loc Ho
2014-01-16 16:09 Loc Ho
2014-01-13 10:32 Lothar Waßmann
2014-01-13 10:29 Lothar Waßmann
2013-12-12  7:30 Loc Ho
2013-11-01  7:04 Xiubo Li
2013-09-24  3:13 Rohit Vaswani
2013-09-02 17:01 Drasko DRASKOVIC
2013-08-24  9:29 Haojian Zhuang
2013-07-26 10:05 Haojian Zhuang
2013-06-28  5:49 Wang, Yalin
2013-06-19 10:57 Ben Dooks
2013-04-24 18:07 Viral Mehta
2012-12-29  9:17 steve.zhan
2012-11-11 14:16 Sammy Chan
2012-11-08  8:07 Abhimanyu Kapur
2012-10-14 10:05 Alexey Dobriyan
2012-08-27  6:40 Simon Horman
2012-06-21 18:26 Paul Walmsley
2012-06-06 10:33 Sascha Hauer
2012-05-18 12:27 Sascha Hauer
2012-03-20 18:28 John Szakmeister
2011-12-28 14:01 Shawn Guo
2011-12-02 16:01 Will Deacon
2011-11-28  2:35 Jett.Zhou
2011-09-19  1:45 Saleem Abdulrasool
2011-09-15  2:03 Jongpill Lee
2011-07-21 11:12 Padmavathi Venna
2011-06-27 20:47 John Ogness
2011-06-27 20:47 Jongpill Lee
2011-06-13 17:29 Andre Silva
2011-06-05 18:33 Hector Oron
2011-05-17  9:28 Javier Martin
2011-05-13 19:35 Vadim Bendebury
2011-03-01 14:02 Javier Martin
2011-01-13  9:13 Uwe Kleine-König
2010-12-03  1:08 tarek attia
2010-10-08  6:02 Daein Moon
2010-09-09  3:33 tarek attia
2010-06-24 13:48 Uwe Kleine-König
2010-06-07 17:58 Dave Hylands
2010-05-18 10:38 Marek Szyprowski
2010-04-17 21:43 nelakurthi koteswararao
2010-02-25  9:36 Thomas Weber
2009-09-17  9:37 Marc Kleine-Budde
2009-08-25 10:34 Syed Rafiuddin

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