Hi Udit, > Am 23.04.2018 um 07:15 schrieb Udit Kumar <[email protected]>: > > Hi Alex, > > I was reading your notes for DT management > >> Alex: Have logic in firmware that can enumerate "Hat"s and create EFI object >> for them. These objects could then be backed by DTBOs - either by grabbing >> them from the device (EEPROM) or by a stored blob in firmware. >Grub for >> example could then also be taught about these objects and DTBO support, so >> an OS could store its own overlays. EDK2 has the hat logic support today and >> already does create objects. > > I am not sure, where you want to store DTBO in EEPROM or on some other > partition/media. > If this is EEPROM then I hope firmware is stored on this as well. Then we > shouldn't expose EEPROM to OS.
There are hats that provide device tree overlays as part of their self description, such as the beagle ones. That‘s what I was referring to. Of course the actual hat driver again can override or self define a dtbo as well. Alex > > Regards > Udit > >> -----Original Message----- >> From: [email protected] [mailto:arm.ebbr-discuss- >> [email protected]] On Behalf Of Grant Likely >> Sent: Thursday, April 19, 2018 8:29 PM >> To: arm.ebbr-discuss <[email protected]>; boot- >> [email protected]; [email protected] >> Subject: [Arm.ebbr-discuss] EBBR weekly meeting in 1/2 hour >> >> Hi folks, >> >> Weekly EBBR meeting starts in about 1/2 hour. Dial in details below. >> Once again the agenda is very short, but I'll open it up to other topics >> after >> action item review. I think there was some interest in talking about DT >> overlay >> handling. >> >> Notes are being captured in the following Google doc. I would greatly >> appreciate help with taking meeting minutes. >> >> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.g >> oogle.com%2Fdocument%2Fd%2F1RdlFp5SIrvjcVOGoGEFVYDsqTqFBJHugbBMV >> 5MuXUhw%2Fedit%3Fusp%3Dsharing&data=02%7C01%7Cudit.kumar%40nxp.co >> m%7C3eb61599b18a412b892508d5a6062f3f%7C686ea1d3bc2b4c6fa92cd99c5c >> 301635%7C0%7C0%7C636597467908843944&sdata=WXyC196CqdpvkQYGtG6Ir >> P0uHPDNTyPA65LM4jfvJXc%3D&reserved=0 >> >> Agenda: >> 1) Action item review >> 2) Any other business >> >> Cheers, >> g. >> >> >> Time: Every Thursday at 16:30-17:30 BST (8:30 PDT, 23:30 CST) Join by Phone >> +44 2033215213,, 4664465# >> >> --- >> >> Join online meeting >> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmeet.l >> ync.com%2Farmh%2Fgrant.likely%2FYBY93TIK&data=02%7C01%7Cudit.kumar% >> 40nxp.com%7C3eb61599b18a412b892508d5a6062f3f%7C686ea1d3bc2b4c6fa9 >> 2cd99c5c301635%7C0%7C0%7C636597467908843944&sdata=aFRlW1xGKXR2V >> hnYEZO%2FFClBt6x8TDd3LVJohERHbmw%3D&reserved=0 >> >> Trouble Joining? Try Skype Web App >> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmeet.l >> ync.com%2Farmh%2Fgrant.likely%2FYBY93TIK%3Fsl%3D1&data=02%7C01%7Cu >> dit.kumar%40nxp.com%7C3eb61599b18a412b892508d5a6062f3f%7C686ea1d3 >> bc2b4c6fa92cd99c5c301635%7C0%7C0%7C636597467908843944&sdata=fSofD >> UE97VolIL9%2BwcyE00mV4Av07Muc96GKHGawRC0%3D&reserved=0 >> >> Join by Phone +44 2033215213,, 4664465# >> >> Find a local number >> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdialin.l >> ync.com%2F7bdb65cd-97d0-44fe-bc03- >> bf8072eadc33&data=02%7C01%7Cudit.kumar%40nxp.com%7C3eb61599b18a4 >> 12b892508d5a6062f3f%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7 >> C636597467908843944&sdata=wQoMC8nocRjcsJrKxZBlXQoJZJRJAZJr40AB%2Fy >> x8Hec%3D&reserved=0 >> Conference ID: 4664465 >> IMPORTANT NOTICE: The contents of this email and any attachments are >> confidential and may also be privileged. If you are not the intended >> recipient, >> please notify the sender immediately and do not disclose the contents to any >> other person, use it for any purpose, or store or copy the information in any >> medium. Thank you. >> _______________________________________________ >> Arm.ebbr-discuss mailing list >> [email protected] _______________________________________________ boot-architecture mailing list [email protected] https://lists.linaro.org/mailman/listinfo/boot-architecture
