brcmfmac: increase F2 watermark for BCM4329

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

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 8e881be..005a056 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4272,6 +4272,7 @@ 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);