From d87f6ebca667dff236214d2123ae3b8f1f0312c0 Mon Sep 17 00:00:00 2001 From: Double Lo Date: Thu, 28 May 2020 22:49:38 -0500 Subject: [PATCH] brcmfmac: 43012 Update MES Watermark Set MES watermark size to 0x50 for 43012. It fixes SDIO bus hang issue when running at high throughput. Signed-off-by: Double Lo Signed-off-by: Chi-hsien Lin Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200529034938.124533-6-chi-hsien.lin@cypress.com --- 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 58d9f0b90ad37..760b7737e7457 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", -- 2.39.5