riscv: dts: spacemit: k3: Drop guest properties from M-level IMSIC

The mimsic node describes the machine-level IMSIC, whose MMIO region is
0x10000 (64 KiB) for all 8 harts. However, the node also specifies
riscv,guest-index-bits = <6>, and per the AIA specification the
per-hart stride is 2^(guest-index-bits + 12) bytes when guest interrupt
files exist, i.e. 2^(6 + 12) = 256 KiB per hart and 2 MiB for all 8
harts. The described region cannot hold even a single hart's files, so
the node contradicts itself. OpenSBI enforces exactly this constraint in
imsic_data_check() and rejects the node with -EINVAL, preventing the
M-level IMSIC from initializing:

  fdt_driver_init_by_offset: interrupt-controller@f1000000 (riscv,imsics) init failed: -3
  init_coldboot: irqchip init failed (error -3)

Moreover, guest interrupt files exist to act as the supervisor-level
interrupt files of virtual harts; there is no machine-level counterpart.
riscv,num-guest-ids is equally meaningless for the machine-level IMSIC.

Drop both "riscv,guest-index-bits" and "riscv,num-guest-ids" properties
from the mimsic node so the node matches the actual hardware layout.

Fixes: 56f37e391a62 ("riscv: dts: spacemit: add initial support for K3 SoC")
Signed-off-by: Junhui Liu <junhui.liu@pigmoral.tech>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://patch.msgid.link/20260729-k3-mimsic-fix-v1-1-368c0aec04b9@pigmoral.tech
Signed-off-by: Yixun Lan <dlan@kernel.org>

0 files changed, 0 insertions, 0 deletions