package/kernel/mac80211/patches/653-0007-rtl8xxxu-8188e-Enable-scheduler.patch

   1 From 682ffd261c494581b8fdbc81f42035a53c67f5c4 Mon Sep 17 00:00:00 2001
   2 From: Jes Sorensen <Jes.Sorensen@redhat.com>
   3 Date: Wed, 29 Jun 2016 11:07:13 -0400
   4 Subject: [PATCH] rtl8xxxu: 8188e: Enable scheduler
   5
   6 This enables the schduler, DMA, etc, except for MAC RX/TX which has to
   7 be set after REG_TRXFF_BNDY due to a hardware bug in the 8188e
   8
   9 Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
  10 ---
  11  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 16 ++++++++++++++++
  12  1 file changed, 16 insertions(+)
  13
  14 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
  15 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
  16 @@ -172,6 +172,7 @@ exit:
  17
  18  static int rtl8188eu_power_on(struct rtl8xxxu_priv *priv)
  19  {
  20 +       u16 val16;
  21         int ret;
  22
  23         rtl8188e_disabled_to_emu(priv);
  24 @@ -180,6 +181,21 @@ static int rtl8188eu_power_on(struct rtl
  25         if (ret)
  26                 goto exit;
  27
  28 +       /*
  29 +        * Enable MAC DMA/WMAC/SCHEDULE/SEC block
  30 +        * Set CR bit10 to enable 32k calibration.
  31 +        * We do not set CR_MAC_TX_ENABLE | CR_MAC_RX_ENABLE here
  32 +        * due to a hardware bug in the 88E, requiring those to be
  33 +        * set after REG_TRXFF_BNDY is set. If not the RXFF bundary
  34 +        * will get set to a larger buffer size than the real buffer
  35 +        * size.
  36 +        */
  37 +       val16 = (CR_HCI_TXDMA_ENABLE | CR_HCI_RXDMA_ENABLE |
  38 +                CR_TXDMA_ENABLE | CR_RXDMA_ENABLE |
  39 +                CR_PROTOCOL_ENABLE | CR_SCHEDULE_ENABLE |
  40 +                CR_SECURITY_ENABLE | CR_CALTIMER_ENABLE);
  41 +       rtl8xxxu_write16(priv, REG_CR, val16);
  42 +
  43  exit:
  44         return ret;
  45  }