Hi all See [1]
> terpstraWesley W. TerpstraVerified SiFive Account > 2d > > I saw a few posts on the internet, which misrepresented what I was > expressing. I never suggested reverse engineering our partner’s IP! > > SiFive is committed to supporting the open-source community. We are pleased > to report that after discussions with our IP partners, we are now able to > make available all the source code required to initialize the HiFive > Unleashed board. The board’s boot sequence is described in the manual. The > assembly code in the initial reset ROM is listed in the manual Chapter 6.1 > “Reset Vector”. The firmware in the ZSBL mask ROM is directly readable by > software on the chip, and we will be making the full source code available > shortly. The source code for FSBL including the DDR initialization will also > be available shortly. We can attest there is no other firmware run by the > system during boot. And yes there is at least a chapter 20.3 Reset and Initialization in [2], which boils down of taking stuff out of reset, programming clocks and sets all values. Thanks Rudolf [1] https://forums.sifive.com/t/ddr-controller-configuration-register-values-for-hifive-unleashed/1334/8 [2] https://static.dev.sifive.com/FU540-C000-v1.0.pdf now. -- coreboot mailing list: coreboot@coreboot.org https://mail.coreboot.org/mailman/listinfo/coreboot
