Hi,
I observed kernel crash in Linux 2.6.26 on OMAP35xx EVM with MUSB. The issue is
described here.
Case-1:
1) Connect USB stick to root hub of OMAP35xx board.
2) It gets detected successfully.
3) Disconnect the stick and connect it again
4) repeat step-3 and we get kernel crash (log-1 attached
On Fri, 22 Aug 2008 [EMAIL PROTECTED] wrote:
From: Ajay Kumar Gupta [EMAIL PROTECTED]
Fixes kernel panic while ISO IN transfer is aborted.Replaced
usb_hcd_unlink_urb_from_ep() from musb_giveback() to __musb_giveback() to
make sure urb is unlinked before giveback when __musb_giveback() is
From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Gupta, Ajay Kumar [EMAIL
PROTECTED]
Sent: Friday, August 22, 2008 8:44 PM
To: Alan Stern
Cc: linux-omap@vger.kernel.org; [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL
PROTECTED]
Subject: RE: [PATCH
Hi,
+config USB_MUSB_AM35X
+ boolean AM35X MUSB support
+ depends on USB_MUSB_HDRC MACH_OMAP3517EVM
As I've already said, depending on the board type won't scale... :-(
..and to scale it up we need to add select USB_MUSB_AM35X in
arch/arm/mach-omap2/Kconfig for all the boards
Hi,
On Thu, Sep 30, 2010 at 12:19:07AM -0500, Gupta, Ajay Kumar wrote:
AM35x has musb interface (version 1.8) and uses CPPI41 DMA engine.
It has USB phy built inside the IP itself.
Signed-off-by: Ajay Kumar Gupta ajay.gu...@ti.com
besides the one small question below:
Acked-by: Felipe
Hi,
On Thu, Sep 30, 2010 at 12:19:08AM -0500, Gupta, Ajay Kumar wrote:
AM35x has musb interface and uses CPPI4.1 DMA engine.
Current patch supports only PIO mode. DMA support can be
added later once basic CPPI4.1 DMA patch is accepted.
Also added USB_MUSB_AM35X which is required
Hi,
[...]
I couldn't fetch your gitorious tree so I just applied 14 patch set
Manually on my branch.
Anyways I will look into it and send the refreshed patch shortly.
gitorious must be trying to make me look bad :-p
Works like a charm here. Will try on a different laptop
fine on
Tony ? Do you ack the usage of that header ?
NAK. Drivers should not mess with the control registers directly.
Instead, the following should be done in the platform init code:
$ grep -r omap_ctrl_read drivers/usb
drivers/usb/musb/am35x.c: devconf2 =
We would need control register apis for accessing USB PHY control
, IPSS reset and interrupt clear register. This would require to
add three different function pointer and that would mostly be
custom to AM35x. Will that be acceptable from musb perspective ?
why don't you add a proper
why don't you add a proper otg_transceiver driver for am35x ?
Is it like omap4's internal phy ? A separate block ?
AM35x PHY is built inside the ip and we need to configure it through
PHY control register.
Additionally we also need to access IPSS reset and Intr clear register
as well
We already have generic APIs so I think we can pass function pointers to
musb driver via struct omap_musb_board_data,
struct omap_musb_board_data {
+void(*phy_on) (void)
+void(*phy_off) (void)
+void (*intr_clr) (void)
}
Reset part can be done in board file itself
As the control.h have been moved to new location and it's
uses are not allowed to drivers directly so moving the phy
control, interrupt clear and reset functionality to board
files.
Signed-off-by: Ajay Kumar Gupta ajay.gu...@ti.com
---
Patch created against today's linus tree.
I
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-
musb.c
index 7260558..1f32fdb 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -33,6 +33,82 @@
#ifdef CONFIG_USB_MUSB_SOC
+static void am35x_musb_phy_power(u8 on)
+{
+
On Fri, Dec 03, 2010 at 07:08:53PM +0530, Gupta, Ajay Kumar wrote:
We already have generic APIs so I think we can pass function pointers
to
musb driver via struct omap_musb_board_data,
struct omap_musb_board_data {
+ void(*phy_on) (void)
+ void(*phy_off) (void)
+ void
Hi,
As the control.h have been moved to new location and it's
uses are not allowed to drivers directly so moving the phy
control, interrupt clear and reset functionality to board
files.
I'm not fond of the whole approach. I'm not sure why accesses to the
control registers are such
Hi,
Is AM35x that different ? Can't you just write to MUSB_INTRRX
MUSB_INTRTX and MUSB_INTRUSB ??
Writing to MUSB_INTRRX/TX/USB wouldn't help. We have to clear interrupt
Bit in control register INTR_LVL_CLR.
I see, thanks for the info :-)
Felipe,
I have recreated this patch (attached)
Hi,
Add support for Texas Instuments Communication Port Programming
Interface 4.1
(CPPI 4.1) used on OMAP-L1x/DA8xx and AM35x.
At this moment, only the DMA controller and queue manager are supported.
Support for the buffer manager is lacking but these chips don't have it
anyway.
Hi,
Add support for Texas Instuments Communication Port Programming
Interface 4.1
(CPPI 4.1) used on OMAP-L1x/DA8xx and AM35x.
At this moment, only the DMA controller and queue manager are
supported.
Support for the buffer manager is lacking but these chips don't have
it anyway.
-Original Message-
From: jung songtan [mailto:jungsong...@gmail.com]
Sent: Tuesday, January 12, 2010 3:22 PM
To: Gupta, Ajay Kumar; linux-omap@vger.kernel.org
Subject: Interval value set in RXINTERVAL register of MUSB?
Hi Ajay and expert,
Can you correct me if my understanding
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Weng, Wending
Sent: Tuesday, January 12, 2010 12:34 AM
To: linux-omap
Subject: PM: Device usb1 failed to suspend: error -16
Hi All,
I tried to suspend the
-Original Message-
From: jung songtan [mailto:jungsong...@gmail.com]
Sent: Tuesday, January 12, 2010 6:11 PM
To: Gupta, Ajay Kumar
Cc: linux-omap@vger.kernel.org; jungsongtan
Subject: Re: Interval value set in RXINTERVAL register of MUSB?
Interval=2 for a low speed device means
Hi Kristo,
There are some issues with this patch in PM branch.
Please find my comments inline.
Regards,
Ajay
OMAP3: PM: Disable OTG autoidle when waking up from off-mode
OMAP3 sleep can be prevented in some cases where OTG autoidle is
enabled.
This patch force disables
Hi,
-Original Message-
From: Patra, Nilkesh
Sent: Monday, January 25, 2010 12:49 PM
To: Felipe Balbi; Greg KH
Cc: Linux USB Mailing List; Linux OMAP Mailing List; Gupta, Ajay Kumar;
Gadiyar, Anand
Subject: RE: [PATCH 1/7] usb: musb: Add context save and restore support
-Original Message-
From: linux-arm-kernel-boun...@lists.infradead.org [mailto:linux-arm-
kernel-boun...@lists.infradead.org] On Behalf Of Tony Lindgren
Sent: Saturday, February 20, 2010 5:01 AM
To: linux-arm-ker...@lists.infradead.org
Cc: Felipe Balbi; linux-omap@vger.kernel.org;
Hi,
-Original Message-
From: Tony Lindgren [mailto:t...@atomide.com]
Sent: Friday, February 26, 2010 3:50 AM
To: Felipe Balbi
Cc: Gupta, Ajay Kumar; linux-omap@vger.kernel.org
Subject: Re: [PATCH] musb: fix power field to hold all possible values
* Felipe Balbi m
Hi,
-Original Message-
From: Oliver Neukum [mailto:oli...@neukum.org]
Sent: Friday, February 26, 2010 4:33 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org;
st...@rowland.harvard.edu
Subject: Re: [PATCH] musb: Add workqueue for URB giveback
Am
Hi,
Am Freitag, 26. Februar 2010 11:39:06 schrieb Ajay Kumar Gupta:
+struct queue *create(void)
+{
+ struct queue *new;
+ new = kmalloc(sizeof(struct queue), GFP_ATOMIC);
+ if (!new)
+ return NULL;
+ new-next = NULL;
+
Hi,
-Original Message-
From: Laurent Pinchart [mailto:laurent.pinch...@ideasonboard.com]
Sent: Friday, February 26, 2010 5:04 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org;
st...@rowland.harvard.edu; oli...@neukum.org
Subject: Re: [PATCH] musb
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Kevin Hilman
Sent: Thursday, March 04, 2010 5:39 AM
To: linux-omap@vger.kernel.org
Subject: usb_nop_xceiv_register() missing when OTG built as modules
This just
-Original Message-
From: Kevin Hilman [mailto:khil...@deeprootsystems.com]
Sent: Thursday, March 04, 2010 11:03 PM
To: Gupta, Ajay Kumar
Cc: linux-omap@vger.kernel.org
Subject: Re: usb_nop_xceiv_register() missing when OTG built as modules
Gupta, Ajay Kumar ajay.gu...@ti.com
Felipe,
-Original Message-
From: Menon, Nishanth
Sent: Thursday, October 29, 2009 11:06 AM
To: Gupta, Ajay Kumar; Gadiyar, Anand; linux-omap@vger.kernel.org
Cc: felipe.ba...@nokia.com; t...@atomide.com
Subject: RE: [PATCH 3/3] omap3evm: musb: Update power capability for
OMAP3EVM
Nishanth,
Signed-off-by: Ajay Kumar Gupta ajay.gu...@ti.com
---
arch/arm/mach-omap2/mux.c |7 +++
arch/arm/plat-omap/include/plat/mux.h |5 +
2 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/mux.c
-Original Message-
From: Felipe Balbi [mailto:felipe.ba...@nokia.com]
Sent: Thursday, October 29, 2009 12:29 PM
To: Gupta, Ajay Kumar
Cc: linux-omap@vger.kernel.org; Balbi Felipe (Nokia-D/Helsinki); Menon,
Nishanth; Gadiyar, Anand
Subject: Re: [PATCH 3/3] omap3evm: musb: Update
Hi,
On Thu, Oct 29, 2009 at 08:03:21AM +0100, ext Gupta, Ajay Kumar wrote:
I was thinking on adding a musb_hdrc_board_data which would group
board-specific data such as this one.
Musb's init phase is quite messy as of today so we would need to clean
that up. Anyways, the main idea
Hi Anand/Felipe,
This is regarding regulator framework for 1V8 supply to EHCI PHY from twl4030
device.
[EHCI port on OMAP3EVM uses SMSC USB3320 PHY and uses 1V8 supply from twl4030
chip.]
I found twl4030_usb_ldo_init () function in drivers/usb/otg/twl4030-usb.c,
which uses regulator
This is regarding regulator framework for 1V8 supply to EHCI PHY from
twl4030 device.
[EHCI port on OMAP3EVM uses SMSC USB3320 PHY and uses 1V8 supply from
twl4030 chip.]
I found twl4030_usb_ldo_init () function in drivers/usb/otg/twl4030-
usb.c, which uses regulator framework but
Hi,
-Original Message-
From: Gadiyar, Anand
Sent: Thursday, November 05, 2009 4:56 PM
To: Mark Brown
Cc: felipe.ba...@nokia.com; Gupta, Ajay Kumar; linux-omap@vger.kernel.org;
Aggarwal, Anuj
Subject: RE: Query: Regulator framework in EHCI driver
On Thu, Nov 05, 2009 at 04:01
Hi,
+ /* get ehci regulator and enable */
+ for (i = 0 ; i OMAP3_HS_USB_PORTS ; i++) {
+ if (omap-port_mode[i] == EHCI_HCD_OMAP_MODE_UNKNOWN)
+ continue;
+ sprintf(supply, ehci%d, i);
The use of sprintf() here looks suspicious - these things
Hi,
+ /* get ehci regulator and enable */
+ for (i = 0 ; i OMAP3_HS_USB_PORTS ; i++) {
+ if (omap-port_mode[i] == EHCI_HCD_OMAP_MODE_UNKNOWN)
+ continue;
+ sprintf(supply, ehci%d, i);
The use of sprintf() here looks suspicious - these things
Hi,
If you do stick with this approach you probably want to use snprintf()
and make supply be 6 bytes rather than 5 bytes long.
+ for (i = 0 ; i OMAP3_HS_USB_PORTS ; i++) {
+ if (omap-port_mode[i] == EHCI_HCD_OMAP_MODE_UNKNOWN)
+
Hi,
MODE_UNKNOWN means that the port is not connected and so no need to
check
the regulator availability.
Sure, currently - the point is that if you're going to check for the
individual allocations anyway then the check doesn't buy you anything.
Now I have taken this into consideration
Hi,
* Ajay Kumar Gupta ajay.gu...@ti.com [091028 16:12]:
OMAP3EVM (Rev = E) has EHCI port on main board itself. Apart from this
there is a slot to connect Mistral Daughter Card (MDC) to it which also
has one EHCI port. Only one EHCI port can be used at a time and we can
choose the port
Hi,
-Original Message-
From: Mark Brown [mailto:broo...@opensource.wolfsonmicro.com]
Sent: Friday, November 13, 2009 6:25 PM
To: Gupta, Ajay Kumar
Cc: Gadiyar, Anand; felipe.ba...@nokia.com; linux-omap@vger.kernel.org;
Aggarwal, Anuj
Subject: Re: Query: Regulator framework in EHCI
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of jung songtan
Sent: Monday, November 16, 2009 7:32 AM
To: linux-omap@vger.kernel.org
Subject: Dose OMAP3 support split transfer?
Hi Guys,
Dose OMAP3 support split
Hi,
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Sergei Shtylyov
Sent: Tuesday, November 17, 2009 10:01 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; davinci-linux-open-
sou...@linux.davincidsp.com; coolo
Hi,
-Original Message-
From: Sergei Shtylyov [mailto:sshtyl...@ru.mvista.com]
Sent: Tuesday, November 17, 2009 9:24 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; davinci-linux-open-
sou...@linux.davincidsp.com; coolo...@kernel.org; felipe.ba...@nokia.com;
linux-omap
Hi,
-Original Message-
From: Sergei Shtylyov [mailto:sshtyl...@ru.mvista.com]
Sent: Tuesday, November 17, 2009 9:12 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; davinci-linux-open-
sou...@linux.davincidsp.com; coolo...@kernel.org; felipe.ba...@nokia.com;
linux-omap
Hi,
-Original Message-
From: Sergei Shtylyov [mailto:sshtyl...@ru.mvista.com]
Sent: Wednesday, November 18, 2009 7:50 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org;
davinci-linux-open-sou...@linux.davincidsp.com;
coolo...@kernel.org; felipe.ba...@nokia.com;
linux-omap
Hi,
-Original Message-
From: Dasgupta, Romit
Sent: Thursday, November 26, 2009 2:33 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org;
felipe.ba...@nokia.com; Gadiyar, Anand
Subject: Re: [PATCH 1/2 v2] musb: Add context save and restore support
Adding support for MUSB register save and restore during system
suspend and resume.
Changes:
- Added musb_save/restore_context() functions
- Added platform specific musb_platform_save/restore_context()
to handle platform specific jobs.
- Maintaining BlackFin
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Gadiyar, Anand
Sent: Monday, December 14, 2009 3:24 PM
To: linux-omap@vger.kernel.org; Kevin Hilman; Tony Lindgren
Subject: Padconf not working on pm_defconfig?
I'm
-Original Message-
From: Felipe Balbi [mailto:felipe.ba...@nokia.com]
Sent: Monday, December 14, 2009 9:55 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org; Balbi Felipe
(Nokia-D/Helsinki); davi...@pacbell.net
Subject: Re: [PATCH 1/3] musb: save
-Original Message-
From: Felipe Balbi [mailto:felipe.ba...@nokia.com]
Sent: Monday, December 14, 2009 10:08 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org; Balbi Felipe
(Nokia-D/Helsinki); davi...@pacbell.net
Subject: Re: [PATCH 3/3] musb: Add
-Original Message-
From: Felipe Balbi [mailto:felipe.ba...@nokia.com]
Sent: Tuesday, December 15, 2009 1:10 PM
To: Gupta, Ajay Kumar
Cc: Balbi Felipe (Nokia-D/Helsinki); linux-...@vger.kernel.org; linux-
o...@vger.kernel.org; davi...@pacbell.net
Subject: Re: [PATCH 1/3] musb: save
snip..
@@ -2179,15 +2322,23 @@ static int musb_suspend(struct device *dev)
spin_lock_irqsave(musb-lock, flags);
if (is_peripheral_active(musb)) {
- /* FIXME force disconnect unless we know USB will wake
-* the system up quickly enough to
-Original Message-
From: Felipe Balbi [mailto:felipe.ba...@nokia.com]
Sent: Tuesday, December 15, 2009 5:41 PM
To: Gadiyar, Anand
Cc: Gupta, Ajay Kumar; Balbi Felipe (Nokia-D/Helsinki); linux-
u...@vger.kernel.org; linux-omap@vger.kernel.org; davi...@pacbell.net
Subject: Re: [PATCH
It should be system's responsibility for not entering into suspend mode
when
there is an ongoing active transfer. If this is reliable then there is no
need for any force disconnect.
On OMAP3EVM, I can see that system doesn't enter into suspend mode when
cable is connected so should be fine
-Original Message-
From: Tony Lindgren [mailto:t...@atomide.com]
Sent: Tuesday, December 15, 2009 11:10 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org;
felipe.ba...@nokia.com
Subject: Re: [PATCH 1/4] musb: get rid of unneeded musb-config-dyn_fifo
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Gupta, Ajay Kumar
Sent: Tuesday, December 15, 2009 8:45 PM
To: felipe.ba...@nokia.com
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org
Subject: RE: [PATCH 1/4
-Original Message-
From: Felipe Balbi [mailto:felipe.ba...@nokia.com]
Sent: Thursday, December 17, 2009 6:40 PM
To: Gupta, Ajay Kumar
Cc: Balbi Felipe (Nokia-D/Helsinki); linux-...@vger.kernel.org; linux-
o...@vger.kernel.org
Subject: Re: [PATCH 1/4] musb: get rid of unneeded musb
snip
#ifdef CONFIG_PM
+static struct musb_context_registers musb_context;
+
+void musb_save_context(struct musb *musb)
+{
Could you add one more parameter to this function call, which would
select either if we want to save the musb_platform context or not?
I m working at the
-Original Message-
From: Arnaud Mandy [mailto:ext-arnaud.2.ma...@nokia.com]
Sent: Thursday, December 17, 2009 7:41 PM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org; Balbi Felipe
(Nokia-D/Helsinki); davi...@pacbell.net; Gadiyar, Anand
Subject: Re
In order to support off-mode, we need the transceiver driver to wake-up
the controller.
I m working on a hook which would allow that.
I want to take advantage of your implementation for saving/restoring
musb context, but saving the platform data is not necessary in my case.
Then
Hi,
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Felipe Balbi
Sent: Monday, December 28, 2009 4:40 PM
To: Tony Lindgren
Cc: Linux OMAP Mailing List; Felipe Balbi
Subject: [PATCH 7/8] arm: omap: musb: pass board
Hi,
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Mankad, Maulik Ojas
Sent: Wednesday, December 30, 2009 4:15 PM
To: linux-omap@vger.kernel.org
Cc: linux-...@vger.kernel.org; Mankad, Maulik Ojas; Felipe Balbi; Tony
-Original Message-
From: linux-usb-ow...@vger.kernel.org [mailto:linux-usb-
ow...@vger.kernel.org] On Behalf Of Felipe Balbi
Sent: Saturday, January 02, 2010 2:31 AM
To: Mankad, Maulik Ojas
Cc: linux-omap@vger.kernel.org; linux-...@vger.kernel.org; Tony Lindgren;
Felipe Balbi; Greg
-Original Message-
From: Mankad, Maulik Ojas
Sent: Monday, January 04, 2010 4:40 PM
To: linux-omap@vger.kernel.org
Cc: linux-...@vger.kernel.org; Mankad, Maulik Ojas; Tony Lindgren; Felipe
Balbi; Greg Kroah-Hartman; Olof Johansson; Sergei Shtylyov; Gupta, Ajay
Kumar
Subject: [PATCH
no.
I could even live with if (machine_is_xxx()) code, although I don't want
to. But ifdefs are an automatic NAK.
Felipe, this is temporary patch as described. I will submit the final one
later. twl4030 dependency is bottleneck for TPS work on OMAP3EVM.
--
balbi
--
To unsubscribe
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David
Brownell
Sent: Friday, November 28, 2008 12:33 PM
To: Pillai, Manikandan
Cc: linux-omap@vger.kernel.org
Subject: Re: [PATCH 3/3] musb: Remvoing twl4030 dependency for OMAP3EVM MUSB
On Thursday
-Original Message-
From: Felipe Balbi [mailto:m...@felipebalbi.com]
Sent: Tuesday, January 13, 2009 3:57 AM
To: Gupta, Ajay Kumar
Cc: linux-omap@vger.kernel.org; davi...@pacbell.net; felipe.ba...@nokia.com
Subject: Re: [PATCH v2] usb: musb: fix bug in musbhsdma programming
On Fri
V
-Original Message-
From: linux-omap-ow...@vger.kernel.org
[mailto:linux-omap-ow...@vger.kernel.org] On Behalf Of Peter
Barada
Sent: Tuesday, January 13, 2009 1:09 AM
To: linux-omap
Subject: Missing USB OTG ID interrupt../
On the current PM tree (2.6.28-rc8, revision 2beb9b4b)
-Original Message-
From: Felipe Balbi [mailto:m...@felipebalbi.com]
Sent: Tuesday, January 13, 2009 4:02 AM
To: Gupta, Ajay Kumar
Cc: linux-...@vger.kernel.org; linux-omap@vger.kernel.org;
davi...@pacbell.net;
felipe.ba...@nokia.com
Subject: Re: [PATCH 3/3] usb: musb: fix null
On Thu, Jan 08, 2009 at 06:01:36PM +0530, Ajay Kumar Gupta wrote:
Mode bit should be set based on function parameter mode of
configure_channel() function.
Signed-off-by: Ajay Kumar Gupta ajay.gu...@ti.com
Acked-by: Felipe Balbi felipe.ba...@nokia.com
NAK -- interpretation of the MODE
We'll need something like this, yes.
This one looks to need a bit of tweaking yet though ...
probably that could be done after merge.
The state can need changing after one of the drivers is unregistered;
I didn't get this comment.
using __exit not __devexit is likely wrong (especially
Basically, that almost all of the OTG state machine must be
handled outside of this code. It's a bit of a puzzle how to
partition that state machine between the drivers that need
to collaborate on it. At this point I don't think there can
be a single model that applies everywhere ... but
I am using OMAP3 based board, running git based kernel 2..6.28, and enabled
EHCI HCD (USB 2.0)
support, PHY mode.
EHCI HS performance is measured using Catalyst, USB analyzer.
Are you doing bulk transfer to a pen drive to measure performance? If so then
try using any USB hard disk.
I am transfering 100MB file to pen drive. I have tried with pen drive with
different manufacturer
(Tanscend, SanDisk, Kingston). I am using OMAP35x EVM.
We have observed lower throughput with pen drive so it's better if you take the
performance numbers
from any USB hard disk.
I think you
-Original Message-
From: linux-omap-ow...@vger.kernel.org
[mailto:linux-omap-ow...@vger.kernel.org] On Behalf Of Steve
Sakoman
Sent: Monday, February 09, 2009 11:11 PM
To: linux-omap
Subject: musb OTG broken in 2.6.29-rc3?
I've been running with musb in host mode on Overo.
-Original Message-
From: Steve Sakoman [mailto:sako...@gmail.com]
Sent: Tuesday, February 10, 2009 10:13 AM
To: Gupta, Ajay Kumar
Cc: linux-omap
Subject: Re: musb OTG broken in 2.6.29-rc3?
On Mon, Feb 9, 2009 at 8:05 PM, Gupta, Ajay Kumar ajay.gu...@ti.com wrote:
Before I
Back porting drivers/usb/storage from v2.6.27rc4 to v2.6.26-omap1 solved this
kernel panic.
Regards,
Ajay
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gupta, Ajay Kumar
Sent: Friday, August 08, 2008 11:21 AM
To: linux-omap@vger.kernel.org
Cc: [EMAIL
I've been trying to get the UVC camera driver working in linux-omap on
the Beagleboard, which uses musb. With the latest linux-omap git,
capture doesn't work. Applying Ajay Gupta's MUSB patches posted here
on 9/8 allows capture to work until the device is closed.
With or without Ajay's
it happens when w_scan tries to tune into a specific frequency on a
USB DVB-T stick. Any ideas about that one?
I have applied these patches:
[PATCH v3] OMAP:MUSB: Corrects urb unlink function path
usb: musb: fix something
MUSB high-bandwidth support patch
MUSB ISO dma fix.
What
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nathan
Monson
Sent: Wednesday, October 01, 2008 10:06 AM
To: linux-omap@vger.kernel.org
Subject: USB serial devices not working on linux-omap musb.
I'm trying to use a USB serial device on a
PM, Gupta, Ajay Kumar [EMAIL PROTECTED] wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nathan
Monson
Sent: Wednesday, October 01, 2008 10:06 AM
To: linux-omap@vger.kernel.org
Subject: USB serial devices not working on linux-omap musb.
I'm
Thanks for your comments.
On Wednesday 01 October 2008, Gupta, Ajay Kumar wrote:
Currently all the BULK request are multiplexed on one hardware endpoint
and when a wifi or eth device is in use they never release BULK hardware
endpoint so that it can be used by other devices. This causes
-Original Message-
From: David Brownell [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 07, 2008 11:35 AM
To: Gupta, Ajay Kumar
Cc: [EMAIL PROTECTED]; linux-omap@vger.kernel.org; [EMAIL PROTECTED]
Subject: Re: [PATCH] MUSB: BULK request on different available endpoints
On Monday
hw_ep-regs = MUSB_EP_OFFSET(i, 0) + mbase;
#ifdef CONFIG_USB_MUSB_HDRC_HCD
+ /* init list of in and out qhs */
+ INIT_LIST_HEAD(hw_ep-in_list);
+ INIT_LIST_HEAD(hw_ep-out_list);
hw_ep-target_regs =
if (qh-type == USB_ENDPOINT_XFER_CONTROL) {
- head = musb-control;
hw_ep = musb-control_ep;
+ head = hw_ep-in_list;
So we only support control in transfer and no hope for control out here?
Control transfer requires only one list
On Thu, Oct 30, 2008 at 02:42:22PM +0530, Ajay Kumar Gupta wrote:
Fixes endpoint starvation issue when more than one bulk qhs
are multiplexed on reserved bulk endpoint.NAK timeout interval
is set for such qhs and next qh is scheduled when NAK timeout
occurs.
This scheme doesn't work for
Hi,
AM35x has musb interface and uses CPPI4.1 DMA engine.
Current patch supports only PIO mode and there are on-going
discussions on location of CPPI4.1 DMA.
Signed-off-by: Ajay Kumar Gupta ajay.gu...@ti.com
tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
@@
Hi,
AM35x has musb interface (version 1.8) and uses CPPI41 DMA engine.
It supports upto 500mA of power in host mode.
Signed-off-by: Ajay Kumar Gupta ajay.gu...@ti.com
---
Created against latest l-o master branch and below patches.
[1] AM35xx: Add clock support for new modules on AM35xx
[2]
Hi,
+/* USB 2.0 OTG module registers */
+#define USB_REVISION_REG 0x00
+#define USB_CTRL_REG 0x04
+#define USB_STAT_REG 0x08
+#define USB_EMULATION_REG0x0c
+/* 0x10 Reserved */
Wait... so the mode register isn't supported? Does AM35x support any
Hi,
I have not added CPPI4.1 DMA specific register here..
Ah. Then they're not compatible with DA8xx anyway...
We could make it compatible with some change as done at,
http://arago-project.org/git/people/?p=sriram/ti-psp-
Hi,
It is being used from plat/usb.h.
I haven't found where it's included.
It's from cppi41_dma.h.
Well, you've removed the register #define's from cppi41_dma.h and
#includ'ed plat/usb.h
Correct.
BUT there's certainly no such header for DA8xx , so as I suspected
Hi,
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Gupta, Ajay Kumar
Sent: Friday, February 26, 2010 10:03 AM
To: Tony Lindgren; Felipe Balbi
Cc: linux-omap@vger.kernel.org
Subject: RE: [PATCH] musb: fix power field
Hi,
-Original Message-
From: Gupta, Ajay Kumar
Sent: Wednesday, February 24, 2010 10:01 AM
To: linux-omap@vger.kernel.org
Cc: felipe.ba...@nokia.com; Gupta, Ajay Kumar
Subject: [PATCH] musb: Add extvbus in musb_board_data
EXTVBUS programming is required by OMAP3EVM REV =E
Hi,
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Cliff Brake
Sent: Wednesday, April 28, 2010 7:40 PM
To: Linux OMAP Users
Subject: omap_musb_board_data -- trouble specifying 500mA supply
Hello,
We are
Hi,
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Cliff Brake
Sent: Wednesday, April 28, 2010 7:40 PM
To: Linux OMAP Users
Subject: omap_musb_board_data -- trouble specifying 500mA supply
Hello,
We are
Hi,
Kroah-Hartman; Subbrathnam, Swaminathan
Subject: Re: [PATCH 2/2 v2] USB: musb: disable double buffering for
older
RTL versions
On Tue, Apr 06, 2010 at 01:46:29PM +0200, ext Gadiyar, Anand wrote:
With g_zero, do you see a hang or do you have data corruption?
data corruption.
Hi,
-Original Message-
From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-
ow...@vger.kernel.org] On Behalf Of Cliff Brake
Sent: Wednesday, April 28, 2010 7:40 PM
To: Linux OMAP Users
Subject: omap_musb_board_data -- trouble specifying 500mA supply
Hello,
We are
1 - 100 of 208 matches
Mail list logo
