QEMU's RISC-V virt machine provides syscon-power and syscon-reset
devices as the means by which to shutdown and reboot. We also need to
ensure that we have attached the syscon_generic device before attaching
any syscon_power devices, and so we introduce a new riscv_syscon device
akin to aw_syscon added in r327936. Currently the SiFive test finisher
is used as the specific implementation of such a syscon device.
Details
Details
Running reboot on QEMU causes the system to reboot, rather than falling back
on cpu_reset which on RISC-V just powers off via SBI.
Diff Detail
Diff Detail
- Repository
- rS FreeBSD src repository - subversion
- Lint
Lint Not Applicable - Unit
Tests Not Applicable
Event Timeline
| sys/riscv/riscv/riscv_syscon.c | ||
|---|---|---|
| 4 ↗ | (On Diff #74654) | this copyright is not needed |
| sys/riscv/riscv/riscv_syscon.c | ||
|---|---|---|
| 4 ↗ | (On Diff #74654) | But aw_syscon is copyright kevans@, which is where most of this code comes from? As in, I copied that file, changed aw to riscv everywhere, updated compat_data, the device description and comments. But it's basically the same code. |
| sys/riscv/riscv/riscv_syscon.c | ||
|---|---|---|
| 4 ↗ | (On Diff #74654) | Since you copied then yes, otherwise it looks like a basic FDT driver template |