Au1000 Big Endian USB OHCI

Au1000 Big Endian USB OHCI

[Thomas Sailer]

Hi,

does the Au1000 OHCI controller work for anybody with the current 2.6
cvs tree in big endian mode? When I try to insmod ohci-hcd, the machine
just hangs. Also, I used the attached patch to be able to select usb
ohci even without PCI.

Furthermore, is there any news about the porting of the usb device
driver to the usb gadget stack?

Tom



--- drivers/usb/host/Kconfig.jnx	2005-01-19 22:48:43.049114480 +0100
+++ drivers/usb/host/Kconfig	2005-01-19 22:49:08.777555520 +0100
@@ -14,6 +14,7 @@
 	default y if ARCH_OMAP
 	default y if ARCH_LH7A404
 	default y if PXA27x
+	default y if SOC_AU1X00
 	default PCI
 
 #
--- arch/mips/Kconfig.jnx	2005-01-19 23:05:07.801263123 +0100
+++ arch/mips/Kconfig	2005-01-19 23:11:31.977151245 +0100
@@ -1055,9 +1055,12 @@
 	bool
 
 config AU1X00_USB_DEVICE
-	bool
+	bool "Au1X00 USB Device Driver"
 	depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
 	default n
+	help
+	  Say Y here if you want to use the USB device connector on your
+	  AU1X00 Board
 
 config MIPS_GT96100
 	bool
--- arch/mips/au1000/common/usbdev.c.jnx	2005-01-19 23:16:40.028506546 +0100
+++ arch/mips/au1000/common/usbdev.c	2005-01-19 23:24:53.161629362 +0100
@@ -46,9 +46,9 @@
 #include <asm/uaccess.h>
 #include <asm/irq.h>
 #include <asm/mipsregs.h>
-#include <asm/au1000.h>
-#include <asm/au1000_dma.h>
-#include <asm/au1000_usbdev.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1000_dma.h>
+#include <asm/mach-au1x00/au1000_usbdev.h>
 
 #ifdef DEBUG
 #undef VDEBUG
@@ -348,7 +348,7 @@
 {
 	u32 cs;
 
-	warn(__FUNCTION__);
+	warn("endpoint_stall");
 
 	cs = au_readl(ep->reg->ctrl_stat) | USBDEV_CS_STALL;
 	au_writel(cs, ep->reg->ctrl_stat);
@@ -360,7 +360,7 @@
 {
 	u32 cs;
 
-	warn(__FUNCTION__);
+	warn("endpoint_unstall");
 
 	cs = au_readl(ep->reg->ctrl_stat) & ~USBDEV_CS_STALL;
 	au_writel(cs, ep->reg->ctrl_stat);
@@ -1031,7 +1031,7 @@
 
 
 /* This ISR handles the receive complete and suspend events */
-static void
+static irqreturn_t
 req_sus_intr (int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct usb_dev *dev = (struct usb_dev *) dev_id;
@@ -1046,11 +1046,12 @@
 		process_ep_receive(dev, &dev->ep[4]);
 	if (status & (1<<5))
 		process_ep_receive(dev, &dev->ep[5]);
+	return (status & ((1<<0) | (1<<4) | (1<<5))) ? IRQ_HANDLED : IRQ_NONE;
 }
 
 
 /* This ISR handles the DMA done events on EP0 */
-static void
+static irqreturn_t
 dma_done_ep0_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct usb_dev *dev = (struct usb_dev *) dev_id;
@@ -1092,10 +1093,11 @@
 	}
 
 	spin_unlock(&ep0->lock);
+	return IRQ_HANDLED;
 }
 
 /* This ISR handles the DMA done events on endpoints 2,3,4,5 */
-static void
+static irqreturn_t
 dma_done_ep_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct usb_dev *dev = (struct usb_dev *) dev_id;
@@ -1149,6 +1151,7 @@
 
 		spin_unlock(&ep->lock);
 	}
+	return IRQ_HANDLED;
 }
 
 
--- drivers/char/Kconfig.jnx	2005-01-20 01:50:45.401014480 +0100
+++ drivers/char/Kconfig	2005-01-20 01:51:19.595499298 +0100
@@ -358,11 +358,11 @@
 
 config AU1X00_USB_TTY
 	tristate "Au1000 USB TTY Device support"
-	depends on MIPS && MIPS_AU1000 && AU1000_USB_DEVICE=y && AU1000_USB_DEVICE
+	depends on MIPS && AU1X00_USB_DEVICE=y && AU1X00_USB_DEVICE
 
 config AU1X00_USB_RAW
 	tristate "Au1000 USB Raw Device support"
-	depends on MIPS && MIPS_AU1000 && AU1000_USB_DEVICE=y && AU1000_USB_TTY!=y && AU1X00_USB_DEVICE
+	depends on MIPS && AU1X00_USB_DEVICE=y && AU1X00_USB_TTY!=y && AU1X00_USB_DEVICE
 
 config SERIAL_TX3912
 	bool "TX3912/PR31700 serial port support"

Re: Au1000 Big Endian USB OHCI

[Herbert Valerio Riedel]

On Thu, 2005-01-20 at 17:29 +0100, Thomas Sailer wrote:
> does the Au1000 OHCI controller work for anybody with the current 2.6
> cvs tree in big endian mode? When I try to insmod ohci-hcd, the machine
> just hangs. Also, I used the attached patch to be able to select usb
> ohci even without PCI.

I'm successfully running linux 2.6.10 on an au15xx in big endian mode,
with some slight modifications to the usb code, for which I posted a
patch on the list some time ago (22 Nov 2004)...

regards,
-- 
Herbert Valerio Riedel <hvr@inso.tuwien.ac.at>
Research Group for Industrial Software @ Vienna University of Technology

Re: Au1000 Big Endian USB OHCI

[Thomas Sailer]

On Thu, 2005-01-20 at 17:37 +0100, Herbert Valerio Riedel wrote:

> I'm successfully running linux 2.6.10 on an au15xx in big endian mode,
> with some slight modifications to the usb code, for which I posted a
> patch on the list some time ago (22 Nov 2004)...

I've seen this patch (thanks...) and applied it (by hand, it doesn't
quite apply any more), but it didn't help. Btw I have an AMD Pb1000
Board.

Tom

Re: Au1000 Big Endian USB OHCI

[Dan Malek]

On Jan 20, 2005, at 8:29 AM, Thomas Sailer wrote:

> Furthermore, is there any news about the porting of the usb device
> driver to the usb gadget stack?

Pete Popov (pete@embeddedalley.com) has made some progress
and posted a patch (or at least a message about where to find it)
on this list a couple of times.  It's on my list to continue the work, 
among
other things I'm trying to accomplish.  I'll be better about posting
progress, good or bad, as I make it.  :-)

Thanks.


	-- Dan

usb gadget on Au1xxx (was: Re: Au1000 Big Endian USB OHCI)

[Kevin Turner]

On Thu, 2005-01-20 at 09:12 -0800, Dan Malek wrote:
> On Jan 20, 2005, at 8:29 AM, Thomas Sailer wrote:
> 
> > Furthermore, is there any news about the porting of the usb device
> > driver to the usb gadget stack?
[...]
> I'll be better about posting progress, good or bad, as I make it.  :-)

I also have an interest in a USB gadget driver for the Au1500; I'd be
happy to see any notes on its status.  Also let me know if you need
someone to test your code.  I don't have my board here yet, but once it
arrives I can put it to use.

Thanks,

 - Kevin T.

-- 
The moon is waxing gibbous, 79.4% illuminated, 10.3 days old.

Re: Au1000 Big Endian USB OHCI

[Thomas Sailer]

On Thu, 2005-01-20 at 17:29 +0100, Thomas Sailer wrote:

> does the Au1000 OHCI controller work for anybody with the current 2.6
> cvs tree in big endian mode? When I try to insmod ohci-hcd, the machine
> just hangs. Also, I used the attached patch to be able to select usb
> ohci even without PCI.

Ok, now I've tried little endian, and it didn't help. ohci-hcd in EL
mode also hangs the system. So it's quite likely not related to the
endianness mode.

Tom