From ed66849e159ba92a91ccde13ce3aebd90c644e05 Mon Sep 17 00:00:00 2001 From: Baochen Qiang Date: Mon, 31 May 2021 17:41:27 +0300 Subject: [PATCH] ath11k: setup WBM_IDLE_LINK ring once again 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 Signed-off-by: Jouni Malinen Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20210511162214.29475-5-jouni@codeaurora.org --- 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). -- 2.11.0