From: Baochen Qiang <bqiang@xxxxxxxxxxxxxx>
For WCN6855, WBM idle link ring needs a reinit.
Without this reinit, firmware crash might happen occasionally.
This is requested by the hw team.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Baochen Qiang <bqiang@xxxxxxxxxxxxxx>
Signed-off-by: Jouni Malinen <jouni@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath11k/hal.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c
index 08e3c72d9237..eaa0edca5576 100644
--- a/drivers/net/wireless/ath/ath11k/hal.c
+++ b/drivers/net/wireless/ath/ath11k/hal.c
@@ -382,6 +382,16 @@ static void ath11k_hal_srng_src_hw_init(struct ath11k_base *ab,
val = FIELD_PREP(HAL_REO1_RING_ID_ENTRY_SIZE, srng->entry_size);
ath11k_hif_write32(ab, reg_base + HAL_TCL1_RING_ID_OFFSET(ab), val);
+ if (srng->ring_id == HAL_SRNG_RING_ID_WBM_IDLE_LINK) {
+ ath11k_hif_write32(ab, reg_base, (u32)srng->ring_base_paddr);
+ val = FIELD_PREP(HAL_TCL1_RING_BASE_MSB_RING_BASE_ADDR_MSB,
+ ((u64)srng->ring_base_paddr >>
+ HAL_ADDR_MSB_REG_SHIFT)) |
+ FIELD_PREP(HAL_TCL1_RING_BASE_MSB_RING_SIZE,
+ (srng->entry_size * srng->num_entries));
+ ath11k_hif_write32(ab, reg_base + HAL_TCL1_RING_BASE_MSB_OFFSET(ab), val);
+ }
+
/* interrupt setup */
/* NOTE: IPQ8074 v2 requires the interrupt timer threshold in the
* unit of 8 usecs instead of 1 usec (as required by v1).
--
2.25.1
