lkml.org 
[lkml]   [2020]   [Nov]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.9 094/391] brcmfmac: increase F2 watermark for BCM4329
    Date
    From: Dmitry Osipenko <digetx@gmail.com>

    [ Upstream commit 317da69d10b0247c4042354eb90c75b81620ce9d ]

    This patch fixes SDHCI CRC errors during of RX throughput testing on
    BCM4329 chip if SDIO BUS is clocked above 25MHz. In particular the
    checksum problem is observed on NVIDIA Tegra20 SoCs. The good watermark
    value is borrowed from downstream BCMDHD driver and it's matching to the
    value that is already used for the BCM4339 chip, hence let's re-use it
    for BCM4329.

    Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
    Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
    Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
    Link: https://lore.kernel.org/r/20200830191439.10017-2-digetx@gmail.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
    index 3c07d1bbe1c6e..ac3ee93a23780 100644
    --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
    +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
    @@ -4278,6 +4278,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
    brcmf_sdiod_writeb(sdiod, SBSDIO_FUNC1_MESBUSYCTRL,
    CY_43012_MESBUSYCTRL, &err);
    break;
    + case SDIO_DEVICE_ID_BROADCOM_4329:
    case SDIO_DEVICE_ID_BROADCOM_4339:
    brcmf_dbg(INFO, "set F2 watermark to 0x%x*4 bytes for 4339\n",
    CY_4339_F2_WATERMARK);
    --
    2.27.0


    \
     
     \ /
      Last update: 2020-11-03 23:07    [W:6.204 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site