topic USB host on MCF54x5EVB, Linux2.6.10: Does it work? in ColdFire/68K Microcontrollers and Processors

USB host on MCF54x5EVB, Linux2.6.10: Does it work?

Dietrich — Sat, 01 Apr 2006 05:55:38 GMT

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Dec 28, 2005, 9:42 AM

Post #1 of 12 (114 views)
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[ColdFire] Interrupt conflict Can't Post

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Hello,
I am using both the I2C and the GP timer interrupts in my application.
They're set to have different priority levels but when both are turned
on, it seems that one stops working. Each of them don't have problems
working individually. Any catches in the interrupt controller module or
else where. Here are the initialization codes for both the I2C and Timer
void TimerInit(void)
{
//enable TOF interrupt
MCF5282_INTC0_IMRH = MCF5282_INTC0_IMRH & 0xFFFFFDFF;
MCF5282_INTC0_IMRL = MCF5282_INTC0_IMRL & 0xFFFFFFFE;
MCF5282_INTC0_ICR41 = 0x10;

//Enable TOI interrupt
MCF5282_GPTA_GPTSCR2 |= MCF5282_GPT_GPTSCR2_TOI;

//enable GPT
//MCF5282_GPTA_GPTSCR1 = 0x00;
MCF5282_GPTA_GPTSCR1 |= MCF5282_GPT_GPTSCR1_GPTEN;

//MCF5282_GPTA_GPTSCR2 = 0;

//enable Fast flag clearing
//MCF5282_GPTA_GPTSCR1 |= MCF5282_GPT_GPTSCR1_TFFCA;
}
int8 i2cInit(void) {
/* Initialize PASP0 and PASP1 to I2C functions */
MCF5282_GPIO_PASPAR |= 0x0F;

/* Enable I2C interrupt */
MCF5282_INTC0_IMRL = MCF5282_INTC0_IMRL & 0xFFFDFFFE;
/* Set to Level 1, Priority 5 */
MCF5282_INTC0_ICR17 = 0x15;

/* Set transmission frequency 0x15 = ~100kHz */
MCF5282_I2C_I2FDR = 0x15;

MCF5282_I2C_I2ADR = iPORT;

/* Enable I2C module */
MCF5282_I2C_I2CR = 0xC0;
return 0;
}

Thanks,
Sam.

Stanton
New User

Jan 3, 2006, 1:06 PM

Post #2 of 12 (106 views)
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Re: [Listserv] [ColdFire] Interrupt conflict [In reply to] Can't Post

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We are having a similar issue with the GPT and UARTs. The one that is the high level/priority interfers with the low priority (adds significant latency). The 1ms PIT seams to be the event that kicks off the 'hung' interrupt. We are looking at ACK methods to see if they are the issue. PIT/AtoD/UART seem to work fine until the GPT is added into the mix.

Stan

DSeymour1
New User

Jan 7, 2006, 9:46 AM

Post #3 of 12 (101 views)
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Re: [Listserv] [ColdFire] Interrupt conflict [In reply to] Can't Post

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Hi Sam,
Both of your interrupts have the same IL of 2 but different IP values. That is good that the combined ICR's are differnent but having the same IL means that whichever interrupt source occurs first wins. Once the interrupt is recieved by the core, the SR will update to the new IL and then block all other interrupt request at and below that level.
I think you want to change your I2C ICR to 0x0D which gives you IL=1 and IP=5. Therefore leaving the ICR41 at 0x10 will let your GPT IL=2. Not sure from a system point of view which interrupt source you want to have higher but easy enough to switch their values.
Regards,
David

Feb 16, 2006, 1:34 PM

Post #4 of 12 (41 views)
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[ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? [In reply to] Can't Post

--------------------------------------------------------------------------------

Hello,

Any body ever made the USB on MCF5485EVB or MCF5475EVB work?

I tried the Linux BSP 2.6.10 on MCF5485EVB, didn't work: system hung quickly after boot.

I tried the same on a MCF5475EVB, this time it looks better. Sometimes it worked for a pretty long while, sometimes right after boot, but eventually system hungs.

For all situations, when USB was disabled, everything worked fine.

Any suggestions?

Regards,
David

Feb 16, 2006, 11:43 PM

Post #5 of 12 (41 views)
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Re: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? [In reply to] Can't Post

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Hello,

I have been told by my repr that USB is only DEVICE on MCF547x/MCF548x.

Nicolas Pinault

David Tao a écrit :
> Hello,
>
> Any body ever made the USB on MCF5485EVB or MCF5475EVB work?
>
> I tried the Linux BSP 2.6.10 on MCF5485EVB, didn't work: system hung quickly after boot.
>
> I tried the same on a MCF5475EVB, this time it looks better. Sometimes it worked for a pretty long while, sometimes right after boot, but eventually system hungs.
>
> For all situations, when USB was disabled, everything worked fine.
>
> Any suggestions?
>
> Regards,
> David

Feb 17, 2006, 12:11 AM

Post #6 of 12 (40 views)
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Re: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? (fwd) [In reply to] Can't Post

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Same problem here. I was using the LogicPD BSP instead (based on 2.4.26)
on an M5485EVB, but no luck anyways. Seems the problem is due to some PCI
quirks. On the Logic forum, they said they were working on a version with
full PCI support; however, this was, if I remember well, at least 6 months
ago...

I unfortunately don't have time to investigate the problem (still trying
to get the DMA working...) but I will eventually need the USB host
support. I actually hoped the 2.6 support was working. Bad news.

Luca Burelli

P.S. The M5485CFE (at least) contains a PCI USB host controller, that's
for sure. Now, if they are so sure it doesn't work to actually deny that
there is one onboard, then we're in deep trouble...

On Fri, 17 Feb 2006, Nicolas Pinault wrote:

> Hello,
>
> I have been told by my repr that USB is only DEVICE on MCF547x/MCF548x.
>
> Nicolas Pinault
>
>
> David Tao a écrit :
> > Hello,
> >
> > Any body ever made the USB on MCF5485EVB or MCF5475EVB work?
> >
> > I tried the Linux BSP 2.6.10 on MCF5485EVB, didn't work: system hung quickly
> > after boot.
> >
> > I tried the same on a MCF5475EVB, this time it looks better. Sometimes it
> > worked for a pretty long while, sometimes right after boot, but eventually
> > system hungs.
> >
> > For all situations, when USB was disabled, everything worked fine.
> >
> > Any suggestions?
> >
> > Regards,
> > David

Feb 17, 2006, 5:19 AM

Post #7 of 12 (40 views)
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RE: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? (fwd) [In reply to] Can't Post

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Hi all if you are trying to get the logic products board to work with its host controller I know that SMX has a product available for it we used them for a SM501 PCI with that board witch has an internal 1.1 host controller as part of it. We purchased there Host stack it works fine now. I know that they got there board running with the chip on the development board. How ever I am not sure if they did it for Linux. We have been happy with there product to date.

Gregg GRANVILLE
Hardware Engineering Manager
-------------------------------------
Tel 1 603.622.0212 / Fax 1 603.623.5623

--------------------------------------------------------
METRONICS /// 30 Harvey Road // Bedford, NH 03110-6818 / US

-----Original Message-----
From: On Behalf Of Burelli Luca
Sent: Friday, February 17, 2006 3:12 AM
To: Granville Gregg
Subject: Re: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? (fwd)

Same problem here. I was using the LogicPD BSP instead (based on 2.4.26)
on an M5485EVB, but no luck anyways. Seems the problem is due to some PCI
quirks. On the Logic forum, they said they were working on a version with
full PCI support; however, this was, if I remember well, at least 6 months
ago...

Luca Burelli

P.S. The M5485CFE (at least) contains a PCI USB host controller, that's
for sure. Now, if they are so sure it doesn't work to actually deny that
there is one onboard, then we're in deep trouble...

On Fri, 17 Feb 2006, Nicolas Pinault wrote:

Feb 17, 2006, 5:34 AM

Post #8 of 12 (40 views)
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RE: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? [In reply to] Can't Post

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Dear David:

I was told by Freescale that the hardware fixes required for USB support
should be ready in mid April. I didn't ask and they didn't share the exact
nature of the problems.

Ken

-----Original Message-----
From: David Tao
Sent: Thursday, February 16, 2006 4:35 PM

Subject: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work?

Hello,

Any body ever made the USB on MCF5485EVB or MCF5475EVB work?

I tried the Linux BSP 2.6.10 on MCF5485EVB, didn't work: system hung quickly
after boot.

I tried the same on a MCF5475EVB, this time it looks better. Sometimes it
worked for a pretty long while, sometimes right after boot, but eventually
system hungs.

For all situations, when USB was disabled, everything worked fine.

Any suggestions?

Regards,
David

Feb 18, 2006, 7:41 AM

Post #9 of 12 (35 views)
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RE: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? [In reply to] Can't Post

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On Fri, 17 Feb 2006, Ken Kerr wrote:

> Dear David:
>
> I was told by Freescale that the hardware fixes required for USB support
> should be ready in mid April. I didn't ask and they didn't share the exact
> nature of the problems.
>
> Ken

Sorry, but I want to be sure: did you really mean "hardware fixes"? So the
boards shipped until that date have a hardware flaw preventing the PCI /
USB buses from working correctly? I surely hope there will be some form of
RMA for the boards already shipped, then, as we bought the Fire Engines
also for their USB host support (among other things).

Thanks for the clarification.
Luca

Message Edited by Dietrich on 04-01-2006 11:26 AM

Message Edited by Dietrich on 04-01-2006 11:27 AM

Message Edited by Dietrich on 04-04-2006 09:23 PM

Re: USB host on MCF54x5EVB, Linux2.6.10: Does it work?

Dietrich — Sun, 02 Apr 2006 01:29:04 GMT

Feb 20, 2006, 5:03 AM

Post #10 of 12 (33 views)
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RE: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? [In reply to] Can't Post

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Dear Luca:

Yes, I did say hardware. The only other info I've seen is at the following
link:

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=M5485EVB&pare
ntCode=MCF5485&nodeId=0162468rH3YTLC00M93426

The section titled M5475CFE M5485CFE RMR contains more info about USB
devices and return instructions.

Ken

-----Original Message-----
From: Burelli Luca
Sent: Saturday, February 18, 2006 10:41 AM
Subject: RE: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work?

On Fri, 17 Feb 2006, Ken Kerr wrote:

Thanks for the clarification.
Luca

Feb 20, 2006, 5:46 AM

Post #11 of 12 (33 views)
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RE: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? [In reply to] Can't Post

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Ken,
correct me if I'm wrong, but I believe this refers to the "USB
device" capability of the MCF5485, which IMHO is unrelated to the PCI
issues we're getting when using the Philips USB Host controllers onboard.
Also, that document mentions always "USB device", never "devices".
I think the USB host problem is another matter. But I never tried
USB device support and confirmed that that works, anyways, so I can't be
100% sure of that.

Best regards,
Luca

On Mon, 20 Feb 2006, Ken Kerr wrote:

> Dear Luca:
>
> Yes, I did say hardware. The only other info I've seen is at the following
> link:
>
> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=M5485EVB&pare
> ntCode=MCF5485&nodeId=0162468rH3YTLC00M93426
>
> The section titled M5475CFE M5485CFE RMR contains more info about USB
> devices and return instructions.
>
> Ken
>
> -----Original Message-----
> From: Burelli Luca
> Sent: Saturday, February 18, 2006 10:41 AM
> Subject: RE: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work?
>
>
> On Fri, 17 Feb 2006, Ken Kerr wrote:
>
> > Dear David:
> >
> > I was told by Freescale that the hardware fixes required for USB support
> > should be ready in mid April. I didn't ask and they didn't share the
> exact
> > nature of the problems.
> >
> > Ken
>
> Sorry, but I want to be sure: did you really mean "hardware fixes"? So the
> boards shipped until that date have a hardware flaw preventing the PCI /
> USB buses from working correctly? I surely hope there will be some form of
> RMA for the boards already shipped, then, as we bought the Fire Engines
> also for their USB host support (among other things).
>
> Thanks for the clarification.
> Luca

Feb 21, 2006, 2:06 PM

Post #12 of 12 (29 views)
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Re: [ColdFire] USB host on MCF54x5EVB, Linux2.6.10: Does it work? [In reply to] Can't Post

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I watched this thread go a couple of different directions and I was
hoping that someone could step forward and clarify a few things....

First of all, I am familiar with the problems that existed last year
with the onchip usb-device functionality. That problem led to
FreeScale's RMRs, but only relates to usb-device.

With respect to the Philips ISP1562 that is found on the fire engine
boards, can anyone clarify what the problems are? Is there a
fundamental problem with how this device is wired to the PCI bus? Is
there a fundamental problem with how the mcf54x5 is wired to the PCI
bus? I have searched through the forums at logicpd.com and found a
single reference to PCI problems, but it suggested that the problem lay
in the then-current linuxBSP - i.e. a software issue. Freescale's dbug
code appears to be detecting the ISP1562 on the PCI bus quite nicely,
but detection and regular operation are two different things.

Can anyone please state clearly whether this is a HW or SW issue?

David Tao wrote:

>Hello,
>
>Any body ever made the USB on MCF5485EVB or MCF5475EVB work?
>
>I tried the Linux BSP 2.6.10 on MCF5485EVB, didn't work: system hung quickly after boot.
>
>I tried the same on a MCF5475EVB, this time it looks better. Sometimes it worked for a pretty long while, sometimes right after boot, but eventually system hungs.
>
>For all situations, when USB was disabled, everything worked fine.
>
>Any suggestions?
>
>Regards,
>David

Message Edited by Dietrich on 04-04-2006 09:22 PM