From: Zhu Yi <yi.zhu@intel.com>
To: linville@tuxdriver.com
Cc: linux-wireless@vger.kernel.org, Tomas Winkler <tomas.winkler@intel.com>
Subject: [PATCH 11/43] iwlwifi: setup correctly L1 L0S pi link values
Date: Thu, 29 May 2008 16:34:56 +0800 [thread overview]
Message-ID: <1212050128-17132-12-git-send-email-yi.zhu@intel.com> (raw)
In-Reply-To: <1212050128-17132-11-git-send-email-yi.zhu@intel.com>
From: Tomas Winkler <tomas.winkler@intel.com>
This patch setups L1 L0S pci link values.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/net/wireless/iwlwifi/iwl-4965-hw.h | 7 ++++++-
drivers/net/wireless/iwlwifi/iwl-4965.c | 18 ++++++++++++++----
drivers/net/wireless/iwlwifi/iwl-5000.c | 19 ++++++++++++++-----
drivers/net/wireless/iwlwifi/iwl-csr.h | 6 +++++-
4 files changed, 39 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
index ee55b28..fc11833 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
@@ -100,9 +100,14 @@
#include "iwl-commands.h"
-#define PCI_LINK_CTRL 0x0F0
+/* PCI registers */
+#define PCI_LINK_CTRL 0x0F0 /* 1 byte */
#define PCI_POWER_SOURCE 0x0C8
#define PCI_REG_WUM8 0x0E8
+
+/* PCI register values */
+#define PCI_LINK_VAL_L0S_EN 0x01
+#define PCI_LINK_VAL_L1_EN 0x02
#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000)
#define TFD_QUEUE_SIZE_MAX (256)
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index d548bda..bf0bd4a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -496,6 +496,10 @@ static int iwl4965_apm_init(struct iwl_priv *priv)
iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
+ /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
+ iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
+ CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
+
/* set "initialization complete" bit to move adapter
* D0U* --> D0A* state */
iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
@@ -514,11 +518,12 @@ static int iwl4965_apm_init(struct iwl_priv *priv)
goto out;
/* enable DMA */
- iwl_write_prph(priv, APMG_CLK_CTRL_REG,
- APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT);
+ iwl_write_prph(priv, APMG_CLK_CTRL_REG, APMG_CLK_VAL_DMA_CLK_RQT |
+ APMG_CLK_VAL_BSM_CLK_RQT);
udelay(20);
+ /* disable L1-Active */
iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
@@ -546,8 +551,13 @@ static void iwl4965_nic_config(struct iwl_priv *priv)
pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link);
- /* disable L1 entry -- workaround for pre-B1 */
- pci_write_config_byte(priv->pci_dev, PCI_LINK_CTRL, val_link & ~0x02);
+ /* L1 is enabled by BIOS */
+ if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN)
+ /* diable L0S disabled L1A enabled */
+ iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
+ else
+ /* L0S enabled L1A disabled */
+ iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 0355ccd..b1c5045 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -63,6 +63,10 @@ static int iwl5000_apm_init(struct iwl_priv *priv)
iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
+ /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
+ iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
+ CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
+
iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
/* set "initialization complete" bit to move adapter
@@ -83,13 +87,13 @@ static int iwl5000_apm_init(struct iwl_priv *priv)
return ret;
/* enable DMA */
- iwl_write_prph(priv, APMG_CLK_EN_REG,
- APMG_CLK_VAL_DMA_CLK_RQT);
+ iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
udelay(20);
+ /* disable L1-Active */
iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
iwl_release_nic_access(priv);
@@ -106,8 +110,13 @@ static void iwl5000_nic_config(struct iwl_priv *priv)
pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link);
- /* disable L1 entry -- workaround for pre-B1 */
- pci_write_config_byte(priv->pci_dev, PCI_LINK_CTRL, val_link & ~0x02);
+ /* L1 is enabled by BIOS */
+ if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN)
+ /* diable L0S disabled L1A enabled */
+ iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
+ else
+ /* L0S enabled L1A disabled */
+ iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 9d6e5d2..545ed69 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -87,13 +87,14 @@
/* EEPROM reads */
#define CSR_EEPROM_REG (CSR_BASE+0x02c)
#define CSR_EEPROM_GP (CSR_BASE+0x030)
+#define CSR_GIO_REG (CSR_BASE+0x03C)
#define CSR_GP_UCODE (CSR_BASE+0x044)
#define CSR_UCODE_DRV_GP1 (CSR_BASE+0x054)
#define CSR_UCODE_DRV_GP1_SET (CSR_BASE+0x058)
#define CSR_UCODE_DRV_GP1_CLR (CSR_BASE+0x05c)
#define CSR_UCODE_DRV_GP2 (CSR_BASE+0x060)
-#define CSR_GIO_CHICKEN_BITS (CSR_BASE+0x100)
#define CSR_LED_REG (CSR_BASE+0x094)
+#define CSR_GIO_CHICKEN_BITS (CSR_BASE+0x100)
/* Analog phase-lock-loop configuration */
#define CSR_ANA_PLL_CFG (CSR_BASE+0x20c)
@@ -213,6 +214,9 @@
#define CSR_EEPROM_GP_BAD_SIGNATURE (0x00000000)
#define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180)
+/* CSR GIO */
+#define CSR_GIO_REG_VAL_L0S_ENABLED (0x00000002)
+
/* UCODE DRV GP */
#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001)
#define CSR_UCODE_SW_BIT_RFKILL (0x00000002)
--
1.5.3.6
next prev parent reply other threads:[~2008-05-29 8:37 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-29 8:34 [PATCH 00/43] iwlwifi driver 05/29 updates Zhu Yi
2008-05-29 8:34 ` [PATCH 01/43] iwlwifi: move iwl_dump_nic_error_log to iwlcore module Zhu Yi
2008-05-29 8:34 ` [PATCH 02/43] iwlwifi: add RTC data address for iwl5000 Zhu Yi
2008-05-29 8:34 ` [PATCH 03/43] iwlwifi: use uCode error and event tables pointer w.r.t loaded image Zhu Yi
2008-05-29 8:34 ` [PATCH 04/43] iwlwifi: increase max payload of iwl_cmd Zhu Yi
2008-05-29 8:34 ` [PATCH 05/43] iwlwifi: create drivers debugfs dir under wiphy->debugfsdir Zhu Yi
2008-05-29 8:34 ` [PATCH 06/43] iwlwifi: mark 4965 ucode types Zhu Yi
2008-05-29 8:34 ` [PATCH 07/43] iwlwifi: remove unused variable form __iwl4965_down Zhu Yi
2008-05-29 8:34 ` [PATCH 08/43] iwlwifi: remove notif_missed_beacons variable Zhu Yi
2008-05-29 8:34 ` [PATCH 09/43] iwlwifi: clean up alive_start routine Zhu Yi
2008-05-29 8:34 ` [PATCH 10/43] iwlwifi: remove 4965 from alive_resp structures Zhu Yi
2008-05-29 8:34 ` Zhu Yi [this message]
2008-05-29 8:34 ` [PATCH 12/43] iwlwifi: implement apm reset flow Zhu Yi
2008-05-29 8:34 ` [PATCH 13/43] iwlwifi: implement apm stop function Zhu Yi
2008-05-29 8:34 ` [PATCH 14/43] iwlwifi: refactor stop master function Zhu Yi
2008-05-29 8:35 ` [PATCH 15/43] iwlwifi: move txq_ctx_stop into iwl-tx.c Zhu Yi
2008-05-29 8:35 ` [PATCH 16/43] iwlwifi: move iwl_rxq_stop into iwl-rx.c Zhu Yi
2008-05-29 8:35 ` [PATCH 17/43] iwlwifi: add remove station functionality Zhu Yi
2008-05-29 8:35 ` [PATCH 18/43] iwlwifi: move add sta handler to iwl-sta.c Zhu Yi
2008-05-29 8:35 ` [PATCH 19/43] iwlwifi: move iwl_rx_missed_beacon_notif to iwl-rx.c Zhu Yi
2008-05-29 8:35 ` [PATCH 20/43] iwlwifi-5000: implement initial calibration for 5000 Zhu Yi
2008-05-29 8:35 ` [PATCH 21/43] iwlwifi: activate status ready timeout only for run time ucode Zhu Yi
2008-05-29 8:35 ` [PATCH 22/43] iwlwifi: add iwl5000_tx_response structure Zhu Yi
2008-05-29 8:35 ` [PATCH 23/43] iwlwifi: move tx response common handlers to iwlcore Zhu Yi
2008-05-29 8:35 ` [PATCH 24/43] iwlwlifi: impelemnt 5000 tx response path Zhu Yi
2008-05-29 8:35 ` [PATCH 25/43] iwlwifi: move 4965 tx response into iwl-4965.c Zhu Yi
2008-05-29 8:35 ` [PATCH 26/43] iwlwifi: fix in-column rate scaling Zhu Yi
2008-05-29 8:35 ` [PATCH 27/43] iwlwifi: move tx reclaim flow into iwl-tx Zhu Yi
2008-05-29 8:35 ` [PATCH 28/43] iwlwifi: implement txq invalidate byte count table Zhu Yi
2008-05-29 8:35 ` [PATCH 29/43] iwlwifi: iwl-5000 add rxon_assoc Zhu Yi
2008-05-29 8:35 ` [PATCH 30/43] iwlwifi: move iwl_sta_modify_enable_tid_tx to iwl-sta.c Zhu Yi
2008-05-29 8:35 ` [PATCH 31/43] iwlwifi: move aggregation code to iwl-tx.c Zhu Yi
2008-05-29 8:35 ` [PATCH 32/43] iwlwifi: add frame count limit to link quality command Zhu Yi
2008-05-29 8:35 ` [PATCH 33/43] iwlwifi: Rx handlers common use for 4965 and 5000 Zhu Yi
2008-05-29 8:35 ` [PATCH 34/43] iwlwifi: move iwl_get_hw_mode to iwl-core.h Zhu Yi
2008-05-29 8:35 ` [PATCH 35/43] mac80211: fix ieee80211_get_buffered_bc Zhu Yi
2008-05-29 8:35 ` [PATCH 36/43] mac80211: fix deadlock in sta->lock Zhu Yi
2008-05-29 8:35 ` [PATCH 37/43] mac80211: sends HT IE to user level through wext Zhu Yi
2008-05-29 8:35 ` [PATCH 38/43] mac80211: allow disable FAT in specific configurations Zhu Yi
2008-05-29 8:35 ` [PATCH 39/43] iwlwifi: disable FAT channel when not permitted Zhu Yi
2008-05-29 8:35 ` [PATCH 40/43] iwlwifi: fix a memory leak in scan Zhu Yi
2008-05-29 8:35 ` [PATCH 41/43] iwlwifi: remove debugfs entries before cfg80211 Zhu Yi
2008-05-29 8:35 ` [PATCH 42/43] iwlwifi: send calibration results as HUGE commands Zhu Yi
2008-05-29 8:35 ` [PATCH 43/43] iwlwifi: clean iwl4965_mac_config Zhu Yi
2008-05-30 11:47 ` [PATCH 40/43] iwlwifi: fix a memory leak in scan Tomas Winkler
2008-05-29 9:37 ` [PATCH 38/43] mac80211: allow disable FAT in specific configurations Johannes Berg
2008-05-29 9:58 ` Tomas Winkler
2008-05-29 10:12 ` Johannes Berg
2008-05-29 10:39 ` Tomas Winkler
2008-05-29 10:49 ` Johannes Berg
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