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ath10k: sdio: set hi_acs_flags 

The SDIO firmware does not allow transmitting packets with the
reduced tx completion HI_ACS option. SDIO firmware uses 1544 as
alternate credit size, which is not big enough for the maximum sized
mac80211 frames. Disable both these HI_ACS flags for SDIO.

Co-developed-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Alagu Sankar <alagusankar@silex-india.com>
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Alagu Sankar 2019-02-25 11:45:57 +02:00 committed by Kalle Valo
parent d961284df2
commit bf1f0a1a4d
1 changed files with 9 additions and 3 deletions
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12
drivers/net/wireless/ath/ath10k/core.c
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@ -637,10 +637,16 @@ static void ath10k_init_sdio(struct ath10k *ar)
ath10k_bmi_write32(ar, hi_mbox_isr_yield_limit, 99);
ath10k_bmi_read32(ar, hi_acs_flags, &param);
param |= (HI_ACS_FLAGS_SDIO_SWAP_MAILBOX_SET |
HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET |
HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE);
/* Data transfer is not initiated, when reduced Tx completion
* is used for SDIO. disable it until fixed
*/
param &= ~HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET;
/* Alternate credit size of 1544 as used by SDIO firmware is
* not big enough for mac80211 / native wifi frames. disable it
*/
param &= ~HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE;
param |= HI_ACS_FLAGS_SDIO_SWAP_MAILBOX_SET;
ath10k_bmi_write32(ar, hi_acs_flags, param);
}