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iwl4965: 11n broken

Message ID 1295537707.21281.1.camel@wwguy-ubuntu (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Guy, Wey-Yi W Jan. 20, 2011, 3:35 p.m. UTC 
None
diff mbox

Patch

From 98af51fc1635b2b2138e66def03acc1fe8eb8329 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Thu, 20 Jan 2011 07:32:06 -0800
Subject: [PATCH 1/1] iwlwifi: don't read sku information from EEPROM for 4965

For all the new devices, the sku information should read from EEPROM
but for legacy devices such as 4965, appearly the EEPROM does not
contain the necessary information. so skip the read from EEPROM
and go back to use software configuration.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-4965.c       |    1 +
 drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c |   11 +++++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index dada0c3..6eae0b0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2621,6 +2621,7 @@  struct iwl_cfg iwl4965_agn_cfg = {
 	.fw_name_pre = IWL4965_FW_PRE,
 	.ucode_api_max = IWL4965_UCODE_API_MAX,
 	.ucode_api_min = IWL4965_UCODE_API_MIN,
+	.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 	.valid_tx_ant = ANT_AB,
 	.valid_rx_ant = ANT_ABC,
 	.eeprom_ver = EEPROM_4965_EEPROM_VERSION,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
index 14ceb4d..27b5a3e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
@@ -152,11 +152,14 @@  int iwl_eeprom_check_sku(struct iwl_priv *priv)
 
 	eeprom_sku = iwl_eeprom_query16(priv, EEPROM_SKU_CAP);
 
-	priv->cfg->sku = ((eeprom_sku & EEPROM_SKU_CAP_BAND_SELECTION) >>
+	if (!priv->cfg->sku) {
+		/* not using sku overwrite */
+		priv->cfg->sku =
+			((eeprom_sku & EEPROM_SKU_CAP_BAND_SELECTION) >>
 			EEPROM_SKU_CAP_BAND_POS);
-	if (eeprom_sku & EEPROM_SKU_CAP_11N_ENABLE)
-		priv->cfg->sku |= IWL_SKU_N;
-
+		if (eeprom_sku & EEPROM_SKU_CAP_11N_ENABLE)
+			priv->cfg->sku |= IWL_SKU_N;
+	}
 	if (!priv->cfg->sku) {
 		IWL_ERR(priv, "Invalid device sku\n");
 		return -EINVAL;
-- 
1.6.0.4