linux-kernel - Re: [PATCH v6 0/5] usb: xhci: Add support for Renesas USB controllers

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Message-ID: <9b63675e-36f4-292a-4bcc-579cb59ed855@aboehler.at>
Date:   Sun, 26 Jan 2020 01:11:35 +0100
From:   Andreas Böhler <dev@...ehler.at>
To:     Vinod Koul <vkoul@...nel.org>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-arm-msm@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Christian Lamparter <chunkeey@...glemail.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 0/5] usb: xhci: Add support for Renesas USB controllers


On 13/01/2020 09:40, Vinod Koul wrote:
> This series add support for Renesas USB controllers uPD720201 and uPD720202.
> These require firmware to be loaded and in case devices have ROM those can
> also be programmed if empty. If ROM is programmed, it runs from ROM as well.
> 
> This includes two patches from Christian which supported these controllers
> w/o ROM and later my patches for ROM support and multiple firmware versions,
> debugfs hook for rom erase and export of xhci-pci functions.
> 
I tested this on an AVM FRITZ!Box 3490, backported to 4.19: Firmware
upload works fine.

However, I'm seeing read errors afterwards which, I suppose, are a
different story.

Here is the log:

[  498.115808] ifx_pcie_bios_map_irq port 0 dev 0000:01:00.0 slot 0 pin 1
[  498.121154] ifx_pcie_bios_map_irq dev 0000:01:00.0 irq 144 assigned
[  498.488541] renesas xhci 0000:01:00.0: xHCI Host Controller
[  498.492820] renesas xhci 0000:01:00.0: new USB bus registered,
assigned bus number 1
[  498.506123] renesas xhci 0000:01:00.0: hcc params 0x014051cf hci
version 0x100 quirks 0x0000000101000090
[  498.516869] hub 1-0:1.0: USB hub found
[  498.519631] hub 1-0:1.0: 2 ports detected
[  498.525641] renesas xhci 0000:01:00.0: xHCI Host Controller
[  498.530217] renesas xhci 0000:01:00.0: new USB bus registered,
assigned bus number 2
[  498.537846] renesas xhci 0000:01:00.0: Host supports USB 3.0 SuperSpeed
[  498.545095] usb usb2: We don't know the algorithms for LPM for this
host, disabling LPM.
[  498.554921] hub 2-0:1.0: USB hub found
[  498.557588] hub 2-0:1.0: 2 ports detected
[  523.013361] usb 1-1: new full-speed USB device number 2 using renesas
xhci
[  523.182725] usb 1-1: no configurations
[  523.185085] usb 1-1: can't read configurations, error -22
[  523.317423] usb 1-1: new full-speed USB device number 3 using renesas
xhci
[  523.493710] usb 1-1: no configurations
[  523.496069] usb 1-1: can't read configurations, error -22
[  523.501951] usb usb1-port1: attempt power cycle

Regards and thanks for the patch,
Andreas