On 01.08.2012 13:26, Liu Hui-R64343 wrote:
-----Original Message-----
From: u-boot-boun...@lists.denx.de [mailto:u-boot-boun...@lists.denx.de]
On Behalf Of Dirk Behme
Sent: Wednesday, August 01, 2012 7:06 PM
To: u-boot@lists.denx.de
Cc: Dirk Behme
Subject: [U-Boot] [PATCH] mx6q: mx6qsabrelite: add GPIO_0__CCM_CLKO
and GPIO_3__CCM_CLKO2 pin mux
A recent Linux kernel (>= 3.5) has support for the SGTL 5000 sound on the
SabreLite board. To make this work, U-Boot has to configure the pin mux for
PAD_GPIO_0__CCM_CLKO and PAD_GPIO_3__CCM_CLKO2 correctly.
Why this can't be set in the kernel but relies on u-boot to configure it?
I don't know :(
It took me days to find this U-Boot dependency, thanks to Troy helping
with this!
I enabled SGTL5000 sound in the kernel and it didn't work. Until I found
that it works with the ER5 Freescale U-Boot, but not with the recent
mainline one.
It seems to me that the SGTL5000 kernel feature for the SabreLite was
developed with a Freescale U-Boot (patching the kernel with DT append)
and not tested with the mainline U-Boot.
Best regards
Dirk
Jason
Taken from Freescale's ER5 U-Boot for the SabreLite.
Signed-off-by: Dirk Behme <dirk.be...@de.bosch.com>
CC: Troy Kisky <troy.ki...@boundarydevices.com>
CC: Stefano Babic <sba...@denx.de>
---
board/freescale/mx6qsabrelite/imximage.cfg | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
1.7.0.4
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--
======================================================================
Dirk Behme Robert Bosch Car Multimedia GmbH
CM-AI/PJ-CF32
Phone: +49 5121 49-3274 Dirk Behme
Fax: +49 711 811 5053274 PO Box 77 77 77
mailto:dirk.be...@de.bosch.com D-31132 Hildesheim - Germany
Bosch Group, Car Multimedia (CM)
Automotive Navigation and Infotainment Systems (AI)
ProJect - CoreFunctions (PJ-CF)
Robert Bosch Car Multimedia GmbH - Ein Unternehmen der Bosch Gruppe
Sitz: Hildesheim
Registergericht: Amtsgericht Hildesheim HRB 201334
Aufsichtsratsvorsitzender: Volkmar Denner
Geschäftsführung: Uwe Thomas, Michael Bolle, Robby Drave, Egbert Hellwig
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