diff options
| author | Yao Zi <ziyao@disroot.org> | 2025-06-06 04:28:00 +0000 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2025-07-03 16:14:13 +0800 |
| commit | 4153ceb0fe4f8c866e45fbf149cebb05f0f8405f (patch) | |
| tree | 12a28ac8af38a75f898e70f2b7ba01c3296a8b00 | |
| parent | c405bab7661dd60420e97a4edeb3162e9d7e02c5 (diff) | |
riscv: aclint_ipi: Support T-Head C900 CLINT
Although timer component of the CLINT isn't fully compatible with the
generic RISC-V ACLINT, the IPI component behaves the same.
As the CLINT doesn't have corresponding riscv_aclint_timer driver
available, let's try looking for a compatible SYSCON device directly
when no riscv_aclint_timer device could be found on IPI initialization.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
| -rw-r--r-- | arch/riscv/lib/aclint_ipi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/riscv/lib/aclint_ipi.c b/arch/riscv/lib/aclint_ipi.c index dcd7e5e6b34..1c9a2d70301 100644 --- a/arch/riscv/lib/aclint_ipi.c +++ b/arch/riscv/lib/aclint_ipi.c @@ -29,6 +29,10 @@ int riscv_init_ipi(void) ret = uclass_get_device_by_driver(UCLASS_TIMER, DM_DRIVER_GET(riscv_aclint_timer), &dev); + if (ret == -ENODEV) + ret = uclass_get_device_by_driver(UCLASS_SYSCON, + DM_DRIVER_GET(riscv_aclint_swi), &dev); + if (ret) return ret; @@ -66,6 +70,7 @@ int riscv_get_ipi(int hart, int *pending) static const struct udevice_id riscv_aclint_swi_ids[] = { { .compatible = "riscv,aclint-mswi", .data = RISCV_SYSCON_ACLINT }, + { .compatible = "thead,c900-clint", .data = RISCV_SYSCON_ACLINT }, { } }; |