Date: Sun, 5 Jan 2020 17:50:53 +0100 From: Emmanuel Vadot <manu@bidouilliste.com> To: =?ISO-8859-1?Q?S=F8ren?= Schmidt <soren.schmidt@gmail.com> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: Pinebook Pro, any progress as of yet ? Message-ID: <20200105175053.9b1a8f1a197b409162b79d63@bidouilliste.com> In-Reply-To: <B956035D-0CC5-41E5-9F64-CB2D3FF23E87@gmail.com> References: <A34D5AC9-2EDC-4601-B468-1A97C6CFD299@gmail.com> <20191230234910.9a02d7e3bd43d72f1250a780@bidouilliste.com> <D1786EB5-3A13-495D-A67E-9F76831F84AA@gmail.com> <20191231001119.68f0c3865ac520388ade5ecf@bidouilliste.com> <20191231222415.0314787f51b0918f7223dd2c@bidouilliste.com> <EA1F3048-E469-418F-9C50-BB3E9D533AEE@gmail.com> <20200101152458.2a529345ebd0f40827d1d808@bidouilliste.com> <B956035D-0CC5-41E5-9F64-CB2D3FF23E87@gmail.com>
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On Thu, 2 Jan 2020 19:53:40 +0100 S=F8ren Schmidt <soren.schmidt@gmail.com> wrote: >=20 > On 1 Jan 2020, at 15.24, Emmanuel Vadot <manu@bidouilliste.com> wrote: >=20 > >>=20 > >>> I know have something that can be booted correctly and with usb. > >>> U-Boot is the same but I've switched the uart baudrate to 115200 as > >>> it's way too noisy at 1.5Mbps for me >=20 > I found a way to make it work reliably, the wires from the USB<>serial co= nverter needs to be short (se pic) then it works without issues at 1.5Mbaud > If I use the 1meter long cable from my usual adapter it fails just as you= noticed. >=20 Not for me, even on the mainboard after the mux it's too noisy : https://people.freebsd.org/~manu/pbp_uart.jpeg Channel 2 is at the end of the cable while channel 3 is on the mainboard connector (after the mux). > > The boot order is fixed and is SPI->eMMC->SD > > So if a bootloader exists on the eMMC it will boot from it. > > The u-boot installed will try to boot from the sdcard using u-boot > > distro boot mechanism but it will not work for us as EFI is broken on > > it. (It might work if you use kernel.bin and compile it with > > LINUX_BOOT_ABI). >=20 > I got it to boot by having a fat32 partition with just the kernel and a /= extlinux/extlinux.conf file on it, then it boots just fine. > It see the eMMC and the SD-card so it should be able to get to a shell at= least, need to get my build script finished. >=20 > I?ll check your patches from GitHub and get it integrated so the ball can= start rolling :) >=20 > Thanks for getting us this far!! >=20 > -S=F8ren --=20 Emmanuel Vadot <manu@bidouilliste.com>
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