Hi Tom, On Fri, May 17, 2019 at 07:24:48AM -0400, Tom Rini wrote: > On Thu, May 16, 2019 at 03:54:43PM -0500, Andreas Dannenberg wrote: > > > This series provides an alternative solution to the previously posted > > series titled "System Firmware Loader for TI K3 family SoCs" [1] using > > the existing FS loader driver rather than extending the SPL loader > > framework like the original patch series. Unlike the original series, > > it does not support eMMC/SD partition/sector based RAW loading, and > > it is larger in size. > > > > It is only provided to support the discussion around to the initial > > series posted as "System Firmware Loader for TI K3 family SoCs" and > > is not intended to supersede this series, hence it is labeled as > > "RFC". > > > > The interesting pieces are really in patches 04/11 (extension of > > FS loader to allow using platform data so one does not have to use > > either ENV or DTS), and 05/11 which implementes the usage of FS > > loader, including the required sequence of MMC initialization steps > > inspired by how SPL does it. > > > > [1] https://lists.denx.de/pipermail/u-boot/2019-May/thread.html#368461 > > Andreas, thanks for posting this. > > TF, do you see some way, given this series, to make changes such that > "fs_loader" can be made smaller? And support more of Andreas' use cases > than it does here? Thanks!
I'm not sure FS loader can be made much smaller but I'm more concerned how it would scale if I were to add support for the other boot modes we need such as eMMC/SD raw mode, QSPI/OSPI, Y-Modem, and others to come. For all of those we have a solution in production similar to what was proposed here [1] tapping into the SPL loader framework at (almost) zero cost. Growing FS loader beyond what it is today plus adding in the support for runtime-selection of firmware load media all added up may quickly become prohibitive for very space constrained scenarios like on our AM654x devices. -- Andreas Dannenberg Texas Instruments Inc [1] https://lists.denx.de/pipermail/u-boot/2019-May/thread.html#368461 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
