From: Double Lo <double.lo@xxxxxxxxxxx>
Set MES watermark size to 0x50 for 43012. It fixes SDIO bus hang issue
when running at high throughput.
Signed-off-by: Double Lo <double.lo@xxxxxxxxxxx>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@xxxxxxxxxxx>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 58d9f0b90ad3..760b7737e745 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -43,6 +43,9 @@
#define CY_4373_F2_WATERMARK 0x40
#define CY_4373_F1_MESBUSYCTRL (CY_4373_F2_WATERMARK | SBSDIO_MESBUSYCTRL_ENAB)
#define CY_43012_F2_WATERMARK 0x60
+#define CY_43012_MES_WATERMARK 0x50
+#define CY_43012_MESBUSYCTRL (CY_43012_MES_WATERMARK | \
+ SBSDIO_MESBUSYCTRL_ENAB)
#define CY_4339_F2_WATERMARK 48
#define CY_4339_MES_WATERMARK 80
#define CY_4339_MESBUSYCTRL (CY_4339_MES_WATERMARK | \
@@ -4217,6 +4220,8 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
devctl |= SBSDIO_DEVCTL_F2WM_ENAB;
brcmf_sdiod_writeb(sdiod, SBSDIO_DEVICE_CTL, devctl,
&err);
+ brcmf_sdiod_writeb(sdiod, SBSDIO_FUNC1_MESBUSYCTRL,
+ CY_43012_MESBUSYCTRL, &err);
break;
case SDIO_DEVICE_ID_BROADCOM_4339:
brcmf_dbg(INFO, "set F2 watermark to 0x%x*4 bytes for 4339\n",
--
2.25.0
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