On Sat, Mar 09, 2019 at 05:43:24PM +0100, Heiko Stuebner wrote:
Hi Marty,
Am Samstag, 9. März 2019, 08:15:23 CET schrieb Marty E. Plummer:
Was going to work on getting that usb->uart redirection code from the linux kernel into u-boot for rk3288, like we have for rk3188, but apparently there have been some changes which render chromebook_speedy_defconfig unable to produce a bootable image. Guidance and suggestions welcome.
Current chromebook_speedy_defconfig results: U-Boot SPL 2019.04-rc3-03639-ge8e3f2d2d4 (Mar 09 2019 - 00:59:05 -0600) Trying to boot from SPI SPI probe failed. SPL: failed to boot from all boot devices ### ERROR ### Please RESET the board ###
chromebook_speedy_defconfig with CONFIG_SPI_FLASH turned on (didn't get moved into the defconfig like the rest) U-Boot SPL 2019.04-rc3-03639-ge8e3f2d2d4 (Mar 09 2019 - 01:01:38 -0600) Trying to boot from SPI initcall sequence 001511f4 failed at call 00101ad5 (err=-38) ### ERROR ### Please RESET the board ###
And enabling the full pinctrl driver and the needed libfdt stuff results in no output at all.
Maybe you could try the in flight patch from David first: http://patchwork.ozlabs.org/patch/1040541/
Are you meaning I should apply said patch to hopefully fix the no-output when i add the pinctrl driver?
In general I noticed in recent tries that rk3288 scrapes really narrow at the 32kb limit of the sram, so possibly we'll need TPL on all rk3288 boards similar to what the rk3288-vyasa board already does now.
Yeah I was eyeballing that as well since adding some features to speedy from jerry in an attempt to get around the issue made the spl image too large.
Heiko