From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Brodkin Date: Wed, 23 Dec 2015 11:59:28 +0000 Subject: [U-Boot] [PATCH] axs103: add support of generic OHCI USB 1.1 controller In-Reply-To: <201512212318.45308.marex@denx.de> References: <1450281915-16471-1-git-send-email-abrodkin@synopsys.com> <201512171608.34689.marex@denx.de> <1450730048.4971.0.camel@synopsys.com> <201512212318.45308.marex@denx.de> Message-ID: <1450871967.6969.9.camel@synopsys.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Marek, On Mon, 2015-12-21 at 23:18 +0100, Marek Vasut wrote: > On Monday, December 21, 2015 at 09:34:08 PM, Alexey Brodkin wrote: > > Hi, > > > > On Thu, 2015-12-17 at 16:08 +0100, Marek Vasut wrote: > > > On Thursday, December 17, 2015 at 02:32:26 PM, Alexey Brodkin wrote: > > > > Hi Marek, > > > > > > > > On Thu, 2015-12-17 at 05:01 +0100, Marek Vasut wrote: > > > > > On Wednesday, December 16, 2015 at 08:54:11 PM, Alexey Brodkin wrote: > > > > > > Hi Marek, > > > > > > > > > > Hi! > > > > > > > > > > > On Wed, 2015-12-16 at 17:52 +0100, Marek Vasut wrote: > > > > > > > On Wednesday, December 16, 2015 at 05:05:15 PM, Alexey Brodkin > wrote: > > > > > > > > This commit adds support of USB 1.1 storage media on AXS103 > > > > > > > > board. For some yet unknown reason USB 2.0 doesn't work on > > > > > > > > AXS103 board issuing messages like this: > > > > > > > > ------------------------>8------------------- > > > > > > > > AXS# usb start > > > > > > > > starting USB... > > > > > > > > USB0: USB EHCI 1.00 > > > > > > > > scanning bus 0 for devices... EHCI timed out on TD - > > > > > > > > token=0x80008c80 unable to get device descriptor (error=-1) > > > > > > > > 1 USB Device(s) found > > > > > > > > ------------------------>8------------------- > > > > > > > > > > > > > > Try defining CONFIG_EHCI_IS_TDI , that _might_ help. > > > > > > > > > > > > Thanks for that tip but it made no difference to me. > > > > > > I need to look deeper into that problem. > > > > > > > > > > I remember seeing that stuff multiple times before, but it might be a > > > > > different issue. It was usually triggered by some sort of corruption > > > > > during the transfer. On ARM, that was often caused by cache issues. > > > > > > > > Believe me I know how much of a grief caches bring so the first thing I > > > > do when seeing unexpected behavior I disable caches :) > > > > > > > > > > Just a bit of a context here. > > > > > > > > > > > > I'm playing with ARC SP board which consists of 2 parts: > > > > > > [1] Baseboard with all peripherals and their connectors > > > > > > [2] Daughterboard with CPU and DDR > > > > > > > > > > > > Baseboard is connected to CPU-board via AXI tunnel. > > > > > > > > > > > > And when CPU-board is the one with ASIC based on ARC770 > > > > > > that runs at 700 MHz I see USB 2.0 working perfectly fine. > > > > > > > > > > > > But if I use CPU-board that sports FPGA with ARC HS38 CPU > > > > > > running at 75 MHz I see the first asynchronous tarnsaction > > > > > > on US 2.0 never happens. > > > > > > > > > > Connect signaltap or chipscope ? :) > > > > > > > > Well I don't have either of those tools sitting on my desk but > > > > if absolutely required I'll do that :) > > > > > > > > > > In particular in ehci_submit_async() after we enable async. > > > > > > schedule setting CMD_ASE command STS_ASS gets set but then token's > > > > > > status stays active forever i.e. following is always true: > > > > > > --------------------->8--------------------- > > > > > > QT_TOKEN_GET_STATUS(token) & QT_TOKEN_STATUS_ACTIVE > > > > > > --------------------->8--------------------- > > > > > > > > > > > > Note USB host controller, phy and usb dongle are exactly the same. > > > > > > And USB 1.1 (OHCI) works perfectly fine at the same time. > > > > > > > > > > Try adding #define DEBUG at the first line of common/usb.c , so we > > > > > can get some more debugging info. Also adding the same into > > > > > common/usb_hub.c helps. > > > > > > > > Did that and here's my log: > > > > > > > > --------------------->8--------------------- > > > > starting USB... > > > > USB0: ehci_register: dev='ehci at 0xe0040000', ctrl=9fd94100, > > > > hccr=e0040000, hcor=e0040010, init=0 Register 1111 NbrPorts 1 > > > > USB EHCI 1.00 > > > > scanning bus 0 for devices... ehci_submit_control_msg: > > > > dev='ehci at 0xe0040000', udev=9fd7c000, udev->dev='ehci at 0xe004000 req=6 > > > > (0x6), type=128 (0x80), value=256, index=0 > > > > USB_DT_DEVICE request > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=5 (0x5), type=0 (0x0), > > > > value=1, index=0 > > > > USB_REQ_SET_ADDRESS > > > > Len is 0 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=6 (0x6), type=128 (0x80), > > > > value=256, index=0 > > > > USB_DT_DEVICE request > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=6 (0x6), type=128 (0x80), > > > > value=512, index=0 > > > > USB_DT_CONFIG config > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=6 (0x6), type=128 (0x80), > > > > value=512, index=0 > > > > USB_DT_CONFIG config > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=9 (0x9), type=0 (0x0), > > > > value=1, index=0 > > > > USB_REQ_SET_CONFIGURATION > > > > Len is 0 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=6 (0x6), type=128 (0x80), > > > > value=768, index=0 > > > > USB_DT_STRING config > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=6 (0x6), type=128 (0x80), > > > > value=769, index=1 > > > > USB_DT_STRING config > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7c000, > > > > udev->dev='ehci at 0xe0040000', portnr=0 req=6 (0x6), type=128 (0x80), > > > > value=770, index=1 > > > > USB_DT_STRING config > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=6 (0x6), type=160 (0xa0), > > > > value=10496, index=0 > > > > USB_DT_HUB config > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=6 (0x6), type=160 (0xa0), > > > > value=10496, index=0 > > > > USB_DT_HUB config > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=0 (0x0), type=160 (0xa0), value=0, > > > > index=0 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=3 (0x3), type=35 (0x23), value=8, > > > > index=1 > > > > Len is 0 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=0 (0x0), type=163 (0xa3), value=0, > > > > index=1 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=0 (0x0), type=163 (0xa3), value=0, > > > > index=1 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=1 (0x1), type=35 (0x23), value=16, > > > > index=1 > > > > Len is 0 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=3 (0x3), type=35 (0x23), value=4, > > > > index=1 > > > > Len is 0 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=0 (0x0), type=163 (0xa3), value=0, > > > > index=1 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=1 (0x1), type=35 (0x23), value=20, > > > > index=1 > > > > Len is 0 > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd7b100, > > > > udev->dev='usb_hub', portnr=1 dev=9fd7b100, pipe=80000083, > > > > buffer=9fd7ae00, length=64, req=9fd7ad00 req=6 (0x6), type=128 (0x80), > > > > value=256 (0x100), index=0 > > > > EHCI timed out on TD - token=0x80008c80 > > > > dev=0, usbsts=0x1, p[1]=0x1005, p[2]=0x0 > > > > unable to get device descriptor (error=-1) > > > > ehci_submit_control_msg: dev='ehci at 0xe0040000', udev=9fd94380, > > > > udev->dev='usb_hub', portnr=0 req=1 (0x1), type=35 (0x23), value=1, > > > > index=1 > > > > Len is 0 > > > > 1 USB Device(s) found > > > > AXS# > > > > --------------------->8--------------------- > > > > > > > > Makes any sense? > > > > > > Am I reading it correctly that the root hub (the one built into the > > > controller) is misbehaving here ? > > > > > > > Note in case of ARC770 the log is very similar except the fact that it > > > > goes further to successful device detection. > > > > Applied to u-boot-arc, thanks! > > Uh, sorry I didn't get back to you about this. I am wrestling my own issues with > the DWC2 USB core :-/ Looks like it doesn't work with USB3340 LPM-capable PHY > (it only starts in FS mode), but works with non-LPM-capable USB3300 PHY and > starts in HS mode. > > Did you figure your issue out by any chance ? No unfortunately I wasn't able to figure out what's wrong there. For now I parked this activity waiting for response from our hardware guys. I spent way too much time on that and basically need to switch to other high-priority things. If I ever get that problem resolved I'll let you know. And thanks for your time anyway, that's much appreciated! -Alexey