Date: Fri, 15 Jul 2016 13:37:28 -0500 From: Karl Denninger <karl@denninger.net> To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Uboot RPI2 can get USB to scan, but doesn't see keyboard Message-ID: <42808748-214c-3361-399a-cc216c20f77b@denninger.net> In-Reply-To: <1468607341.72182.330.camel@freebsd.org> References: <e3f66777-1132-cbd9-4edc-e52c007d30e3@denninger.net> <1468607341.72182.330.camel@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
This is a cryptographically signed message in MIME format. --------------ms010203070800090102060400 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 7/15/2016 13:29, Ian Lepore wrote: > On Fri, 2016-07-15 at 13:23 -0500, Karl Denninger wrote: >> I have successfully patched the u-boot code to obtain a USB scan >> during >> pre-boot (so in theory a USB keyboard would work during u-boot time >> on >> the Pi) but it appears that something is missing in that either the >> usb >> keyboard never attaches (despite being declared as a legitimate input >> source in stdin) or it is not being picked up in the first place. >> >> I'm not sure which is the case and the uboot output doesn't make >> clear >> which is the case -- has anyone else worked on this? From what I can >> discern it *does* work with Linux distributions, so it has to be >> something in our config file for u-boot and not an inherently >> impossibility with u-boot on this platform. >> > u-boot on rpi has long been able to handle full speed and high speed > devices (not sure what you would have patch, since this has always > worked), but not low speed devices such as a keyboard. It may be that > mainline u-boot has finally gotten that bug fixed (a fix was said to be= > in testing when I checked a few months ago). If so, we need to update > our u-boot ports for rpi. > > -- Ian Our config file for the 2015-04 port did not specify "usb start" in the preboot stanza so the USB subsystem was never probed by default. You could turn it on via the serial console (if you had one) but not having it there in the first place leads to a chicken-and-egg problem. It also appeared that reading the uEnv.txt file is not enabled so there was no way to 'stuff' that command in (even once) for a system without a serial console. The lack of low-speed may be why although the usb probes the keyboard doesn't attach. The git repo specifically references the following though for the Pi in the defaults file 158 <http://git.denx.de/?p=3Du-boot.git;a=3Dblob;f=3Dinclude/configs/rpi.h;h=3D= dbbb81efa99f527b2617e0f5c33a2c8ecee5ac38;hb=3DHEAD#l158> /* Environment */ 159 <http://git.denx.de/?p=3Du-boot.git;a=3Dblob;f=3Dinclude/configs/rpi.h;h=3D= dbbb81efa99f527b2617e0f5c33a2c8ecee5ac38;hb=3DHEAD#l159> #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG 160 <http://git.denx.de/?p=3Du-boot.git;a=3Dblob;f=3Dinclude/configs/rpi.h;h=3D= dbbb81efa99f527b2617e0f5c33a2c8ecee5ac38;hb=3DHEAD#l160> #define ENV_DEVICE_SETTINGS \ 161 <http://git.denx.de/?p=3Du-boot.git;a=3Dblob;f=3Dinclude/configs/rpi.h;h=3D= dbbb81efa99f527b2617e0f5c33a2c8ecee5ac38;hb=3DHEAD#l161> "stdin=3Dserial,usbkbd\0" \ 162 <http://git.denx.de/?p=3Du-boot.git;a=3Dblob;f=3Dinclude/configs/rpi.h;h=3D= dbbb81efa99f527b2617e0f5c33a2c8ecee5ac38;hb=3DHEAD#l162> "stdout=3Dserial,lcd\0" \ 163 <http://git.denx.de/?p=3Du-boot.git;a=3Dblob;f=3Dinclude/configs/rpi.h;h=3D= dbbb81efa99f527b2617e0f5c33a2c8ecee5ac38;hb=3DHEAD#l163> "stderr=3Dserial,lcd\0" And in addition it ALSO specifies "usb start" in the default preboot stan= za. That STRONGLY implies that the code has been fixed and a USB keyboard will work. --=20 Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------ms010203070800090102060400 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgMFADCABgkqhkiG9w0BBwEAAKCC Bl8wggZbMIIEQ6ADAgECAgEpMA0GCSqGSIb3DQEBCwUAMIGQMQswCQYDVQQGEwJVUzEQMA4G A1UECBMHRmxvcmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3Rl bXMgTExDMRwwGgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhND dWRhIFN5c3RlbXMgTExDIENBMB4XDTE1MDQyMTAyMjE1OVoXDTIwMDQxOTAyMjE1OVowWjEL MAkGA1UEBhMCVVMxEDAOBgNVBAgTB0Zsb3JpZGExGTAXBgNVBAoTEEN1ZGEgU3lzdGVtcyBM TEMxHjAcBgNVBAMTFUthcmwgRGVubmluZ2VyIChPQ1NQKTCCAiIwDQYJKoZIhvcNAQEBBQAD ggIPADCCAgoCggIBALmEWPhAdphrWd4K5VTvE5pxL3blRQPyGF3ApjUjgtavqU1Y8pbI3Byg XDj2/Uz9Si8XVj/kNbKEjkRh5SsNvx3Fc0oQ1uVjyCq7zC/kctF7yLzQbvWnU4grAPZ3IuAp 3/fFxIVaXpxEdKmyZAVDhk9az+IgHH43rdJRIMzxJ5vqQMb+n2EjadVqiGPbtG9aZEImlq7f IYDTnKyToi23PAnkPwwT+q1IkI2DTvf2jzWrhLR5DTX0fUYC0nxlHWbjgpiapyJWtR7K2YQO aevQb/3vN9gSojT2h+cBem7QIj6U69rEYcEDvPyCMXEV9VcXdcmW42LSRsPvZcBHFkWAJqMZ Myiz4kumaP+s+cIDaXitR/szoqDKGSHM4CPAZV9Yh8asvxQL5uDxz5wvLPgS5yS8K/o7zDR5 vNkMCyfYQuR6PAJxVOk5Arqvj9lfP3JSVapwbr01CoWDBkpuJlKfpQIEeC/pcCBKknllbMYq yHBO2TipLyO5Ocd1nhN/nOsO+C+j31lQHfOMRZaPQykXVPWG5BbhWT7ttX4vy5hOW6yJgeT/ o3apynlp1cEavkQRS8uJHoQszF6KIrQMID/JfySWvVQ4ksnfzwB2lRomrdrwnQ4eG/HBS+0l eozwOJNDIBlAP+hLe8A5oWZgooIIK/SulUAsfI6Sgd8dTZTTYmlhAgMBAAGjgfQwgfEwNwYI KwYBBQUHAQEEKzApMCcGCCsGAQUFBzABhhtodHRwOi8vY3VkYXN5c3RlbXMubmV0Ojg4ODgw CQYDVR0TBAIwADARBglghkgBhvhCAQEEBAMCBaAwCwYDVR0PBAQDAgXgMCwGCWCGSAGG+EIB DQQfFh1PcGVuU1NMIEdlbmVyYXRlZCBDZXJ0aWZpY2F0ZTAdBgNVHQ4EFgQUxRyULenJaFwX RtT79aNmIB/u5VkwHwYDVR0jBBgwFoAUJHGbnYV9/N3dvbDKkpQDofrTbTUwHQYDVR0RBBYw FIESa2FybEBkZW5uaW5nZXIubmV0MA0GCSqGSIb3DQEBCwUAA4ICAQBPf3cYtmKowmGIYsm6 eBinJu7QVWvxi1vqnBz3KE+HapqoIZS8/PolB/hwiY0UAE1RsjBJ7yEjihVRwummSBvkoOyf G30uPn4yg4vbJkR9lTz8d21fPshWETa6DBh2jx2Qf13LZpr3Pj2fTtlu6xMYKzg7cSDgd2bO sJGH/rcvva9Spkx5Vfq0RyOrYph9boshRN3D4tbWgBAcX9POdXCVfJONDxhfBuPHsJ6vEmPb An+XL5Yl26XYFPiODQ+Qbk44Ot1kt9s7oS3dVUrh92Qv0G3J3DF+Vt6C15nED+f+bk4gScu+ JHT7RjEmfa18GT8DcT//D1zEke1Ymhb41JH+GyZchDRWtjxsS5OBFMzrju7d264zJUFtX7iJ 3xvpKN7VcZKNtB6dLShj3v/XDsQVQWXmR/1YKWZ93C3LpRs2Y5nYdn6gEOpL/WfQFThtfnat HNc7fNs5vjotaYpBl5H8+VCautKbGOs219uQbhGZLYTv6okuKcY8W+4EJEtK0xB08vqr9Jd0 FS9MGjQE++GWo+5eQxFt6nUENHbVYnsr6bYPQsZH0CRNycgTG9MwY/UIXOf4W034UpR82TBG 1LiMsYfb8ahQJhs3wdf1nzipIjRwoZKT1vGXh/cj3gwSr64GfenURBxaFZA5O1acOZUjPrRT n3ci4McYW/0WVVA3lDGCBRMwggUPAgEBMIGWMIGQMQswCQYDVQQGEwJVUzEQMA4GA1UECBMH RmxvcmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3RlbXMgTExD MRwwGgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhNDdWRhIFN5 c3RlbXMgTExDIENBAgEpMA0GCWCGSAFlAwQCAwUAoIICTTAYBgkqhkiG9w0BCQMxCwYJKoZI hvcNAQcBMBwGCSqGSIb3DQEJBTEPFw0xNjA3MTUxODM3MjhaME8GCSqGSIb3DQEJBDFCBEC1 DX61PK2tYDE1n9uQvkSowNvRpb1iwyOxECGyLasqosRCvKG80NJ2kO4dbjgEFksZvGsBqbUK SB5vJlxW7BUJMGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEqMAsGCWCGSAFlAwQBAjAK BggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwICAUAwBwYFKw4DAgcwDQYI KoZIhvcNAwICASgwgacGCSsGAQQBgjcQBDGBmTCBljCBkDELMAkGA1UEBhMCVVMxEDAOBgNV BAgTB0Zsb3JpZGExEjAQBgNVBAcTCU5pY2V2aWxsZTEZMBcGA1UEChMQQ3VkYSBTeXN0ZW1z IExMQzEcMBoGA1UEAxMTQ3VkYSBTeXN0ZW1zIExMQyBDQTEiMCAGCSqGSIb3DQEJARYTQ3Vk YSBTeXN0ZW1zIExMQyBDQQIBKTCBqQYLKoZIhvcNAQkQAgsxgZmggZYwgZAxCzAJBgNVBAYT AlVTMRAwDgYDVQQIEwdGbG9yaWRhMRIwEAYDVQQHEwlOaWNldmlsbGUxGTAXBgNVBAoTEEN1 ZGEgU3lzdGVtcyBMTEMxHDAaBgNVBAMTE0N1ZGEgU3lzdGVtcyBMTEMgQ0ExIjAgBgkqhkiG 9w0BCQEWE0N1ZGEgU3lzdGVtcyBMTEMgQ0ECASkwDQYJKoZIhvcNAQEBBQAEggIAcOpN4jmO EA/KO3A+LeLnFIU+PhTurcPE1x8Dy1rg7pOigZXQZjazRyMTQOVmP8NfzlFvPaItaBBhtQOR UpepSySBgZja+AOsI6nhfPVS391lodPa6N3v+I5hEG6Apbpg+7vo9KV6Dtte06R9BN37gd/g BRPNZHah2rdaUG2rAmsI+hZtylLKuzeRAPCMWM/Gcfsmou2sYldchCdAFVGt02iWD0UH3dKs 7DVQey0vPE533rCwZu57bWOh1UogoXr+68G6IBQO5HQYLMNi8nCnigJ07CXX+q/2W6LyuVMK vK+4WbDboEg41JAtRxmC5/PFz1Xj7JUJHQk9a3BuwEsNDk5xUIX0dEuETsQdZZGT4D1YmVsb 9foXaAJAKps2UyeYwV+4IpPDv9JDaXtJcPlhALxk2LMxyguH8GFbzAlabMPFJ8cMRHfP5zqS 9sEeL2w9OUkPeMkwm+/RVgmMPajJoCvN8Q2zXRL/eIRznb0vylMg62iSShxyJdVSjlLMY67c D8c1z2pjSBTfcesWRxSPOMU5FNX5ZyosKwv54GMT3ad+CS083kxs1bAxhRjqVX8GygbMqyre gRTOMEX+9v40Y3gm84fpYbrwL85fWo/etu+FE5vCUSzMM4ZwjxsbC1+0dwk6OD2MKBTTEaWC yGde0kSnlulPOQwsIoLoO/9/KBIAAAAAAAA= --------------ms010203070800090102060400--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?42808748-214c-3361-399a-cc216c20f77b>