From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marty E. Plummer Date: Tue, 23 Feb 2021 15:36:46 -0600 Subject: rk3399-gru-kevin: issues on bringup In-Reply-To: References: <79736268-6cd1-ecab-950a-be05b1581765@gmail.com> Message-ID: <20210223213646.dbgdyuryfyh75kde@proprietary-killer> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Tue, Feb 23, 2021 at 10:10:11AM -0500, Simon Glass wrote: > Hi Marty, > > On Thu, 13 Aug 2020 at 13:35, Alper Nebi Yasak wrote: > > > > Hi Simon, Marty, > > > > I'm interested in getting U-Boot to work with Kevin as well, but don't > > have a Servo (or the willingness to open up the case yet), so I've been > > trying to boot from depthcharge as in README.chromium-chainload. > > > > I don't have a way to see serial output and I see no other signs of > > life. Can you give me a tested configuration that immediately powers-off > > or reboots a Kevin so I can confirm what I'm doing works on the > > chainloading side? I mean I can boot Linux, but trying the same with > > U-Boot just gives me a blank screen even after accounting for a lot of > > things. > > > > Meanwhile, I've wrote some code to automate making depthcharge partition > > images, and to enable the display on Kevin (and perhaps Bob). Since I > > don't know if chainloading works, I don't know if these are broken or > > not either. I'm unsure about sending untested patches to the list, so I > > put them up here if you want to take a look (and maybe test/fix them?): > > > > https://github.com/alpernebbi/u-boot/tree/rk3399-gru-kevin/wip > > > > They're not really things that'd make a non-booting Kevin boot, though. > > I hope at least some of it can be useful in some way. > > I am just replying here as you asked for some details on IRC. What > details do you need? > Well, if its possible to actually do openocd/etc on the AP using a servo, I'd like to know how. All the documentation I could find is about using openocd to flash the EC, not debug the AP. > I was intending to try out a kevin if I have one. I will add that to my list. > > Regards, > Simon