[PATCH v3 3/3] lib: irqchip/imsic: configure mstateen

[Mayuresh Chitale]

When mstateen registers are implemented, the AIA related
configurations need to be done in mstateen for the IMSIC
initialization to succeed.

Signed-off-by: Mayuresh Chitale <mchitale at ventanamicro.com>
---
 lib/sbi/sbi_hart.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
index b0edf38..7b602c3 100644
--- a/lib/sbi/sbi_hart.c
+++ b/lib/sbi/sbi_hart.c
@@ -98,6 +98,12 @@ static void mstatus_init(struct sbi_scratch *scratch)
 			mstateen_val |= SMSTATEEN0_HSENVCFG;
 		else
 			mstateen_val &= ~SMSTATEEN0_HSENVCFG;
+		if (sbi_hart_has_feature(scratch, SBI_HART_HAS_AIA))
+			mstateen_val |= (SMSTATEEN0_AIA | SMSTATEEN0_SVSLCT |
+					SMSTATEEN0_IMSIC);
+		else
+			mstateen_val &= ~(SMSTATEEN0_AIA | SMSTATEEN0_SVSLCT |
+					SMSTATEEN0_IMSIC);
 		csr_write(CSR_MSTATEEN0, mstateen_val);
 #if __riscv_xlen == 32
 		csr_write(CSR_MSTATEEN0H, mstateen_val >> 32);
-- 
2.17.1