From 2eaadaf2f65a2856f3e9d4522d582eb2ce6800ec Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Wed, 29 Jun 2016 11:07:13 -0400 Subject: [PATCH] rtl8xxxu: 8188e: Enable scheduler This enables the schduler, DMA, etc, except for MAC RX/TX which has to be set after REG_TRXFF_BNDY due to a hardware bug in the 8188e Signed-off-by: Jes Sorensen --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c @@ -172,6 +172,7 @@ exit: static int rtl8188eu_power_on(struct rtl8xxxu_priv *priv) { + u16 val16; int ret; rtl8188e_disabled_to_emu(priv); @@ -180,6 +181,21 @@ static int rtl8188eu_power_on(struct rtl if (ret) goto exit; + /* + * Enable MAC DMA/WMAC/SCHEDULE/SEC block + * Set CR bit10 to enable 32k calibration. + * We do not set CR_MAC_TX_ENABLE | CR_MAC_RX_ENABLE here + * due to a hardware bug in the 88E, requiring those to be + * set after REG_TRXFF_BNDY is set. If not the RXFF bundary + * will get set to a larger buffer size than the real buffer + * size. + */ + val16 = (CR_HCI_TXDMA_ENABLE | CR_HCI_RXDMA_ENABLE | + CR_TXDMA_ENABLE | CR_RXDMA_ENABLE | + CR_PROTOCOL_ENABLE | CR_SCHEDULE_ENABLE | + CR_SECURITY_ENABLE | CR_CALTIMER_ENABLE); + rtl8xxxu_write16(priv, REG_CR, val16); + exit: return ret; }