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46 lines
1.4 KiB
Diff
46 lines
1.4 KiB
Diff
From 682ffd261c494581b8fdbc81f42035a53c67f5c4 Mon Sep 17 00:00:00 2001
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From: Jes Sorensen <Jes.Sorensen@redhat.com>
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Date: Wed, 29 Jun 2016 11:07:13 -0400
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Subject: [PATCH] rtl8xxxu: 8188e: Enable scheduler
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This enables the schduler, DMA, etc, except for MAC RX/TX which has to
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be set after REG_TRXFF_BNDY due to a hardware bug in the 8188e
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Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
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---
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drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 16 ++++++++++++++++
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1 file changed, 16 insertions(+)
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--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
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+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
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@@ -172,6 +172,7 @@ exit:
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static int rtl8188eu_power_on(struct rtl8xxxu_priv *priv)
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{
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+ u16 val16;
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int ret;
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rtl8188e_disabled_to_emu(priv);
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@@ -180,6 +181,21 @@ static int rtl8188eu_power_on(struct rtl
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if (ret)
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goto exit;
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+ /*
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+ * Enable MAC DMA/WMAC/SCHEDULE/SEC block
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+ * Set CR bit10 to enable 32k calibration.
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+ * We do not set CR_MAC_TX_ENABLE | CR_MAC_RX_ENABLE here
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+ * due to a hardware bug in the 88E, requiring those to be
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+ * set after REG_TRXFF_BNDY is set. If not the RXFF bundary
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+ * will get set to a larger buffer size than the real buffer
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+ * size.
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+ */
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+ val16 = (CR_HCI_TXDMA_ENABLE | CR_HCI_RXDMA_ENABLE |
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+ CR_TXDMA_ENABLE | CR_RXDMA_ENABLE |
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+ CR_PROTOCOL_ENABLE | CR_SCHEDULE_ENABLE |
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+ CR_SECURITY_ENABLE | CR_CALTIMER_ENABLE);
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+ rtl8xxxu_write16(priv, REG_CR, val16);
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+
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exit:
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return ret;
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}
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