Hi Heiko, On 17 July 2016 at 09:27, Simon Glass <s...@chromium.org> wrote: > Hi Heiko, > > On 17 July 2016 at 09:20, Heiko Stübner <he...@sntech.de> wrote: >> Am Sonntag, 17. Juli 2016, 08:14:06 schrieb Simon Glass: >>> Hi Heiko, >>> >>> On 15 July 2016 at 16:17, Heiko Stuebner <he...@sntech.de> wrote: >>> > I've made some nice progress on using mainline uboot on the rk3188 >>> > and would like to dump some first results. >>> > >>> > Right now I can use uboot on the rk3188 with the Rockchip binary ddr init, >>> > similar to what barebox does and can even netboot a kernel image using >>> > a usb ethernet adapter [0] . >>> > >>> > While working on this I found quite some cosmetic stuff that shouldn't >>> > persist to make extending easier. So while I don't know what the policy >>> > is for my standalone pinctrl and clock drivers (without the actual board) >>> > at least the cosmetics + fix might get in at least. >>> >>> Nice work! >>> >>> It would be best to add the drivers with the board - otherwise they >>> are just dead code. How far away is it? >> >> The big issue is the SPL. Right now I'm using Rockchip's ddr-init as spl- >> replacement, and I'd say this second part is nearly ready - only minor >> cleanups. >> >> The memory-setup is supposed to be very much similar to the rk3288 (same >> dw_upctl and ddr-phy), but it looks like the very first steps are somewhat >> different and I haven't been able to make the spl output anything on the >> serial console yet ... which could stem from some difference in what the soc >> expects or just some dumb mistake on my part :-) > > That's always tricky. > > You may already know this, but the EARLY_UART setting is used on > rk3288 to display a character as soon as SPL starts. You might be able > to do something similar. The main issue I had was getting the pinmux > setting right. > > As a test, you can start with booting SPL from the ddr-init binary I > suspect. I have not tried it but it should work. Then the pinmux > should already be set up (since ddr-init outputs to serial).
I'm going to apply the earlier patches in your series. Once you have a working board we can apply the rest (to avoid adding dead code). Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
