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[109.252.170.211]) by smtp.gmail.com with ESMTPSA id z7sm255295lfc.59.2020.08.26.23.05.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Aug 2020 23:05:55 -0700 (PDT) From: Dmitry Osipenko To: Arend van Spriel , Franky Lin , Hante Meuleman , Chi-Hsien Lin , Wright Feng , Kalle Valo Cc: linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, brcm80211-dev-list@cypress.com, netdev@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/4] brcmfmac: increase F2 watermark for BCM4329 Date: Thu, 27 Aug 2020 09:04:38 +0300 Message-Id: <20200827060441.15487-2-digetx@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200827060441.15487-1-digetx@gmail.com> References: <20200827060441.15487-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Signed-off-by: Dmitry Osipenko --- 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 3c07d1bbe1c6..ac3ee93a2378 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