[PATCH v3 0/3] riscv: enable SBI system reset
Heinrich Schuchardt
xypron.glpk at gmx.de
Sun Sep 5 10:37:23 CEST 2021
The purpose of this series is to provide the UEFI ResetSystem() service at
runtime on RISC-V systems.
With SBI v0.3 a system reset extension is available. This allows to
implement reboot and poweroff in U-Boot in a system independent way.
* Provide missing constants
* Provide a system reset driver using the system reset extension.
* Provide a UEFI runtime implementation for system reset
v3:
add SBI_HSM_HART_STATUS_SUSPENDED,
SBI_HSM_HART_STATUS_SUSPEND_PENDING,
SBI_HSM_HART_STATUS_RESUME_PENDING
v2:
correct constants that were blindly copied from Linux
Heinrich Schuchardt (3):
riscv: add missing SBI extension definitions
cmd/sbi: use constants instead of numerical values
sysreset: provide SBI based sysreset driver
MAINTAINERS | 1 +
arch/riscv/cpu/cpu.c | 13 ++++-
arch/riscv/include/asm/sbi.h | 41 +++++++++++++-
arch/riscv/lib/sbi.c | 21 ++++++--
cmd/riscv/sbi.c | 30 +++++------
drivers/sysreset/Kconfig | 11 ++++
drivers/sysreset/Makefile | 1 +
drivers/sysreset/sysreset_sbi.c | 96 +++++++++++++++++++++++++++++++++
lib/efi_loader/Kconfig | 2 +-
9 files changed, 193 insertions(+), 23 deletions(-)
create mode 100644 drivers/sysreset/sysreset_sbi.c
--
2.30.2
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