diff options
| author | Wright Feng <wright.feng@cypress.com> | 2018-11-21 07:53:44 +0000 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-12-13 16:57:13 +0200 |
| commit | e1a08730eeb0bad4d82c3bc40e74854872de618d (patch) | |
| tree | 4625c7191658f57e16135cee0e62ecf166e70f65 /drivers/net/wireless/broadcom | |
| parent | eb6b33bfb8f56859df7264dccc2ca8ab7c57342a (diff) | |
| download | linux-e1a08730eeb0bad4d82c3bc40e74854872de618d.tar.bz2 | |
brcmfmac: set F2 watermark to 256 for 4373
We got SDIO_CRC_ERROR with 4373 on SDR104 when doing bi-directional
throughput test. Enable watermark to 256 to guarantee the operation
stability.
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 22646a3b911e..c833e24c751c 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -49,6 +49,10 @@ #define DCMD_RESP_TIMEOUT msecs_to_jiffies(2500) #define CTL_DONE_TIMEOUT msecs_to_jiffies(2500) +/* watermark expressed in number of words */ +#define DEFAULT_F2_WATERMARK 0x8 +#define CY_4373_F2_WATERMARK 0x40 + #ifdef DEBUG #define BRCMF_TRAP_INFO_SIZE 80 @@ -138,6 +142,8 @@ struct rte_console { /* 1: isolate internal sdio signals, put external pads in tri-state; requires * sdio bus power cycle to clear (rev 9) */ #define SBSDIO_DEVCTL_PADS_ISO 0x08 +/* 1: enable F2 Watermark */ +#define SBSDIO_DEVCTL_F2WM_ENAB 0x10 /* Force SD->SB reset mapping (rev 11) */ #define SBSDIO_DEVCTL_SB_RST_CTL 0x30 /* Determined by CoreControl bit */ @@ -4046,6 +4052,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err, void *nvram; u32 nvram_len; u8 saveclk; + u8 devctl; brcmf_dbg(TRACE, "Enter: dev=%s, err=%d\n", dev_name(dev), err); @@ -4101,8 +4108,23 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err, brcmf_sdiod_writel(sdiod, core->base + SD_REG(hostintmask), bus->hostintmask, NULL); - - brcmf_sdiod_writeb(sdiod, SBSDIO_WATERMARK, 8, &err); + switch (sdiod->func1->device) { + case SDIO_DEVICE_ID_CYPRESS_4373: + brcmf_dbg(INFO, "set F2 watermark to 0x%x*4 bytes\n", + CY_4373_F2_WATERMARK); + brcmf_sdiod_writeb(sdiod, SBSDIO_WATERMARK, + CY_4373_F2_WATERMARK, &err); + devctl = brcmf_sdiod_readb(sdiod, SBSDIO_DEVICE_CTL, + &err); + devctl |= SBSDIO_DEVCTL_F2WM_ENAB; + brcmf_sdiod_writeb(sdiod, SBSDIO_DEVICE_CTL, devctl, + &err); + break; + default: + brcmf_sdiod_writeb(sdiod, SBSDIO_WATERMARK, + DEFAULT_F2_WATERMARK, &err); + break; + } } else { /* Disable F2 again */ sdio_disable_func(sdiod->func2); |