Hi Anup,
On Fri, 2019-01-18 at 11:18 +0000, Anup Patel wrote:
This patchset adds SiFive Freedom Unleashed (FU540) support to RISC-V U-Boot.
The patches are based upon latest RISC-V U-Boot tree (git://git.denx.de/u-boot-riscv.git) at commit id 91882c472d8c0aef4db699d3f2de55bf43d4ae4b
All drivers namely: SiFive PRCI, SiFive Serial, and Cadance MACB Ethernet work fine on actual SiFive Unleashed board and QEMU sifive_u machine.
Thanks for working on this! Are you also planning on adding the features of the FSBL to U-Boot to remove it from the boot flow?
I was able to run U-Boot and boot Linux successfully on a SiFive HiFive Unleashed board with this patch series. I had to make one more change, because U-Boot was not able to find a serial driver and paniced as a result.
I fixed this by making the serial driver available pre-relocation. For this, the soc compatible has to be added to cpu/generic/cpu.c and the serial driver must have the DM_FLAG_PRE_RELOC flag set.
Another way would be to add a "stdout-path" property to the chosen node of the device tree.
Thanks, Lukas