From: Madhan Mohan R MadhanMohan.R@cypress.com
[ Upstream commit 58e4bbea0c1d9b5ace11df968c5dc096ce052a73 ]
Along with F2 watermark (existing) configuration, F1 MesBusyCtrl should be enabled & sdio device RX FIFO watermark should be configured to avoid overflow errors.
Reviewed-by: Arend van Spriel arend.vanspriel@broadcom.com Signed-off-by: Madhan Mohan R madhanmohan.r@cypress.com Signed-off-by: Chi-Hsien Lin chi-hsien.lin@cypress.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 3 +++ drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h | 9 ++++++++- 2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index e487dd78cc024..abaed2fa2defd 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -4133,6 +4133,9 @@ 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_4373_F2_WATERMARK | + SBSDIO_MESBUSYCTRL_ENAB, &err); break; default: brcmf_sdiod_writeb(sdiod, SBSDIO_WATERMARK, diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h index 7faed831f07d5..34b031154da93 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h @@ -77,7 +77,7 @@ #define SBSDIO_GPIO_OUT 0x10006 /* gpio enable */ #define SBSDIO_GPIO_EN 0x10007 -/* rev < 7, watermark for sdio device */ +/* rev < 7, watermark for sdio device TX path */ #define SBSDIO_WATERMARK 0x10008 /* control busy signal generation */ #define SBSDIO_DEVICE_CTL 0x10009 @@ -104,6 +104,13 @@ #define SBSDIO_FUNC1_RFRAMEBCHI 0x1001C /* MesBusyCtl (rev 11) */ #define SBSDIO_FUNC1_MESBUSYCTRL 0x1001D +/* Watermark for sdio device RX path */ +#define SBSDIO_MESBUSY_RXFIFO_WM_MASK 0x7F +#define SBSDIO_MESBUSY_RXFIFO_WM_SHIFT 0 +/* Enable busy capability for MES access */ +#define SBSDIO_MESBUSYCTRL_ENAB 0x80 +#define SBSDIO_MESBUSYCTRL_ENAB_SHIFT 7 + /* Sdio Core Rev 12 */ #define SBSDIO_FUNC1_WAKEUPCTRL 0x1001E #define SBSDIO_FUNC1_WCTRL_ALPWAIT_MASK 0x1