diff options
Diffstat (limited to 'iwlwifi-disable-the-buggy-chain-extension-feature-in-HW.patch')
| -rw-r--r-- | iwlwifi-disable-the-buggy-chain-extension-feature-in-HW.patch | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/iwlwifi-disable-the-buggy-chain-extension-feature-in-HW.patch b/iwlwifi-disable-the-buggy-chain-extension-feature-in-HW.patch deleted file mode 100644 index c4f2ed3a1..000000000 --- a/iwlwifi-disable-the-buggy-chain-extension-feature-in-HW.patch +++ /dev/null @@ -1,48 +0,0 @@ -From d012d04e4d6312ea157b6cf19e9689af934f5aa7 Mon Sep 17 00:00:00 2001 -From: Emmanuel Grumbach <emmanuel.grumbach@intel.com> -Date: Wed, 6 Jun 2012 13:55:02 +0200 -Subject: [PATCH] iwlwifi: disable the buggy chain extension feature in HW - -This feature has been reported to be buggy and enabled by -default. We therefore need to disable it manually. - -Cc: stable@vger.kernel.org -Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> -Signed-off-by: Johannes Berg <johannes.berg@intel.com> -Signed-off-by: John W. Linville <linville@tuxdriver.com> ---- - drivers/net/wireless/iwlwifi/iwl-prph.h | 1 + - drivers/net/wireless/iwlwifi/iwl-trans-pcie.c | 5 +++++ - 2 files changed, 6 insertions(+), 0 deletions(-) - -diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h -index 3b10692..dfd5466 100644 ---- a/drivers/net/wireless/iwlwifi/iwl-prph.h -+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h -@@ -224,6 +224,7 @@ - #define SCD_TXFACT (SCD_BASE + 0x10) - #define SCD_ACTIVE (SCD_BASE + 0x14) - #define SCD_QUEUECHAIN_SEL (SCD_BASE + 0xe8) -+#define SCD_CHAINEXT_EN (SCD_BASE + 0x244) - #define SCD_AGGR_SEL (SCD_BASE + 0x248) - #define SCD_INTERRUPT_MASK (SCD_BASE + 0x108) - -diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c -index ec6fb39..79c6b91 100644 ---- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c -+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c -@@ -1058,6 +1058,11 @@ static void iwl_tx_start(struct iwl_trans *trans) - iwl_write_prph(trans, SCD_DRAM_BASE_ADDR, - trans_pcie->scd_bc_tbls.dma >> 10); - -+ /* The chain extension of the SCD doesn't work well. This feature is -+ * enabled by default by the HW, so we need to disable it manually. -+ */ -+ iwl_write_prph(trans, SCD_CHAINEXT_EN, 0); -+ - /* Enable DMA channel */ - for (chan = 0; chan < FH_TCSR_CHNL_NUM ; chan++) - iwl_write_direct32(trans, FH_TCSR_CHNL_TX_CONFIG_REG(chan), --- -1.7.7.6 - |