On Tue, Nov 13, 2018 at 1:47 PM Bin Meng <bmeng...@gmail.com> wrote: > > This adds DM drivers to support RISC-V CPU and timer. > > The U-Boot RISC-V SBI support is still working in progress. > Some patches in this series like adding CSR numbers, exception > numbers, are prerequisites for the SBI implementation, but it > does no harm to include them as part of this series. > > This series is dependent on Lukas's riscv series @ > http://patchwork.ozlabs.org/project/uboot/list/?series=74999 > > This series is available at u-boot-x86/riscv-working for testing. > > > Bin Meng (18): > dm: cpu: Add timebase frequency to the platdata > riscv: qemu: Create a simple-bus driver for the soc node > cpu: Add a RISC-V CPU driver > riscv: Add a SYSCON driver for Core Local Interruptor > timer: Add driver for RISC-V privileged architecture defined timer > riscv: kconfig: Allow platform to specify Kconfig options > riscv: Enlarge the default SYS_MALLOC_F_LEN > riscv: qemu: Probe cpus during boot > riscv: Add CSR numbers > riscv: Add exception codes for xcause register > riscv: Do some basic architecture level cpu initialization > riscv: Move trap handler codes to mtrap.S > riscv: Fix context restore before returning from trap handler > riscv: Return to previous privilege level after trap handling > riscv: Adjust the _exit_trap() position to come before handle_trap() > riscv: Pass correct exception code to _exit_trap() > riscv: Refactor handle_trap() a little for future extension > riscv: Allow U-Boot to run on hart 0 only >
I see that this series tries to setup infrastructure for implementing SBI runtime servies. You might want to consider OpenSBI library, will be eventually available. (Refer, https://linuxplumbersconf.org/event/2/contributions/196/attachments/127/159/Atish_SBI.pdf) If every bootloader starts implementing SBI runtime services then there will be lot of fragmentation and SOC vendors will have to support SBI in variety of bootloaders. Regards, Anup _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
