On Mon, Jun 17, 2024 at 02:29:46PM +0100, Conor Dooley wrote: > On Mon, Jun 17, 2024 at 08:49:57PM +0800, Jisheng Zhang wrote: > > On Mon, Jun 17, 2024 at 01:20:52AM +0800, Yangyu Chen wrote: > > > Banana Pi BPI-F3 motherboard is powered by SpacemiT K1[1]. > > > > > > Key features: > > > - 4 cores per cluster, 2 clusters on chip > > > - UART IP is Intel XScale UART > > > > > > Some key considerations: > > > - ISA string is inferred from vendor documentation[2] > > > - Cluster topology is inferred from datasheet[1] and L2 in vendor dts[3] > > > - No coherent DMA on this board > > > Inferred by taking vendor ethernet and MMC drivers to the mainline > > > kernel. Without dma-noncoherent in soc node, the driver fails. > > > - No cache nodes now > > > The parameters from vendor dts are likely to be wrong. It has 512 > > > sets for a 32KiB L1 Cache. In this case, each set is 64B in size. > > > When the size of the cache line is 64B, it is a directly mapped > > > cache rather than a set-associative cache, the latter is commonly > > > used. Thus, I didn't use the parameters from vendor dts. > > > > > > Currently only support booting into console with only uart, other > > > features will be added soon later. > > > > Hi Yangyu, > > > > Per recent practice of cv1800b and th1520 upstream, I think a complete > > initial support would include pinctrl, clk and reset, I have received > > the complains from the community. So can you please bring the pinctrl > > clk and reset at the same time? > > What sort of complaints have you got? That the support is too minimal to > be useful? For example https://lore.kernel.org/linux-riscv/95c20c6c-66cd-4f87-920b-5da766317e19@xxxxxxxxxx/ Now, I think it's better to "model the clocks/resets/other dependencies" in the initial support. So lacking of pinctrl, clk and reset doesn't fully describe the hardware.
