On 1/30/22 7:56 AM, guoren@xxxxxxxxxx wrote: > From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> > > The thead,c900-plic has been used in opensbi to distinguish > PLIC [1]. Although PLICs have the same behaviors in Linux, > they are different hardware with some custom initializing in > firmware(opensbi). > > Qute opensbi patch commit-msg by Samuel: > > The T-HEAD PLIC implementation requires setting a delegation bit > to allow access from S-mode. Now that the T-HEAD PLIC has its own > compatible string, set this bit automatically from the PLIC driver, > instead of reaching into the PLIC's MMIO space from another driver. > > [1]: https://github.com/riscv-software-src/opensbi/commit/78c2b19218bd62653b9fb31623a42ced45f38ea6 > > Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> > Cc: Anup Patel <anup@xxxxxxxxxxxxxx> > Cc: Marc Zyngier <maz@xxxxxxxxxx> > Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx> > Cc: Samuel Holland <samuel@xxxxxxxxxxxx> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > --- > drivers/irqchip/irq-sifive-plic.c | 1 + > 1 file changed, 1 insertion(+) Tested-by: Samuel Holland <samuel@xxxxxxxxxxxx>
