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authorTomas Winkler <tomas.winkler@intel.com>2008-08-04 16:00:39 +0800
committerJohn W. Linville <linville@tuxdriver.com>2008-08-04 15:09:12 -0400
commit4c43e0d0ecd5196ed5c67f64ed2f1860770eed34 (patch)
treef25047f729c2d3bc2e82db51c1b7f4a3cb094b77 /drivers/net/wireless
parent6041e2a08c50e3fcaf1e56422bfafda62c597cea (diff)
iwlwifi: HW bug fixes
This patch adds few HW bug fixes. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-5000.c15
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-csr.h10
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-prph.h12
3 files changed, 31 insertions, 6 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index f7bbd12193f9..1d793c093f1a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -93,6 +93,13 @@ static int iwl5000_apm_init(struct iwl_priv *priv)
iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
+ /* Set FH wait treshold to maximum (HW error during stress W/A) */
+ iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL);
+
+ /* enable HAP INTA to move device L1a -> L0s */
+ iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
+
iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
/* set "initialization complete" bit to move adapter
@@ -230,6 +237,14 @@ static void iwl5000_nic_config(struct iwl_priv *priv)
CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
+ /* W/A : NIC is stuck in a reset state after Early PCIe power off
+ * (PCIe power is lost before PERST# is asserted),
+ * causing ME FW to lose ownership and not being able to obtain it back.
+ */
+ iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
+ ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
+
spin_unlock_irqrestore(&priv->lock, flags);
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 545ed692d889..52629fbd835a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -104,6 +104,7 @@
* 3-2: 0 = A, 1 = B, 2 = C, 3 = D step
*/
#define CSR_HW_REV_WA_REG (CSR_BASE+0x22C)
+#define CSR_DBG_HPET_MEM_REG (CSR_BASE+0x240)
/* Bits for CSR_HW_IF_CONFIG_REG */
#define CSR49_HW_IF_CONFIG_REG_BIT_4965_R (0x00000010)
@@ -118,7 +119,12 @@
#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A (0x00000000)
#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B (0x00001000)
-#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
+#define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A (0x00080000)
+#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
+#define CSR_HW_IF_CONFIG_REG_BIT_PCI_OWN_SEM (0x00400000)
+#define CSR_HW_IF_CONFIG_REG_BIT_ME_OWN (0x02000000)
+#define CSR_HW_IF_CONFIG_REG_BIT_WAKE_ME (0x08000000)
+
/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
* acknowledged (reset) by host writing "1" to flagged bits. */
@@ -236,6 +242,8 @@
#define CSR39_ANA_PLL_CFG_VAL (0x01000000)
#define CSR50_ANA_PLL_CFG_VAL (0x00880300)
+/* HPET MEM debug */
+#define CSR_DBG_HPET_MEM_REG_VAL (0xFFFF0000)
/*=== HBUS (Host-side Bus) ===*/
#define HBUS_BASE (0x400)
/*
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index 70d9c7568b98..ee5afd48d3af 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -84,14 +84,16 @@
#define APMG_CLK_VAL_DMA_CLK_RQT (0x00000200)
#define APMG_CLK_VAL_BSM_CLK_RQT (0x00000800)
-#define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000)
-#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800)
+#define APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS (0x00400000)
+#define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000)
+#define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000)
+#define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN (0x00000000)
+#define APMG_PS_CTRL_VAL_PWR_SRC_MAX (0x01000000) /* 3945 only */
+#define APMG_PS_CTRL_VAL_PWR_SRC_VAUX (0x02000000)
-#define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000)
-#define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN (0x00000000)
-#define APMG_PS_CTRL_VAL_PWR_SRC_VAUX (0x01000000)
+#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800)
/**
* BSM (Bootstrap State Machine)