On Tue, Jun 28, 2022 at 10:38:38PM +0200, Sam Ravnborg wrote: > The following is the current set of patches so far to support > PBL for the skov-arm9cpu. > > The pwm is not really part of this - but it is part of the story. > The patch-set was triggered when someone reported a bug in the > atmel pwm code. The code did not build - so I ported it over. > Now I wanted to boot the target, but at91bootstrap no longer > supports the at91sam9263. So I decided to try to make it work > in barebox. I have tried this before and failed - but it should > be possible... > > What I have made is modelled on top of all the great work > for other more modern atmel bouards. > > v2: > - The first stage bootloader works - thanks to feedback from Ahmad! > - Add support for non-high capacity SD cards, as required by at91sam9 (Ahmad) > - Replace hardcoded delay loops with pit based early delays (Ahmad) > - Several adjustments to skov-arm9cpu code to fit the changes > > The following patches are not ready: > - atmel_lcdfb: add support for updated DT bindings > - ARM: at91: Update DTS for skov-arm9cpu > > They both rely on updated bindings that has not landed yet, > and which may end up not being compatible with the changes > implemented here. > So the patches works - but bindings are work-in-progress. > > My plan is to resurrect my drm driver for at91sam9 and > with that the update the binding file. But timeline > for this work is unknowm. > > In other words - I assume patch 1 to 8 + 10 as ready. > Patch 9 + 11 are WIP. > > Sam > > Sam Ravnborg (11): > pwm: atmel: Fix build and update > ARM: at91: Make sdramc.h useable in multi image builds > ARM: at91: Add initialize function to sdramc > ARM: at91: Provide at91_mux_pio_pin for use in lowlevel > mci: atmel_mci: Add PBL helper to configure highcapacity > ARM: at91: Add at91sam9 xload_mmc for PBL use > ARM: at91: Add extra register definitions > ARM: at91: Add lowlevel helpers for at91sam9263 > atmel_lcdfb: add support for updated DT bindings > ARM: at91: Add xload support to skov-arm9cpu > ARM: at91: Update DTS for skov-arm9cpu Applied 1-8, thanks Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
