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From e6b7225c77e0e67bd8695b24725c66f90f60bcf4 Mon Sep 17 00:00:00 2001
From: Jes Sorensen <Jes.Sorensen@redhat.com>
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 <Jes.Sorensen@redhat.com>
---
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;
}
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