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iwlagn: modify digital SVR for 1000

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On 1000, there are two Switching Voltage Regulators (SVR). The first one
apply digital voltage level (1.32V) for PCIe block and core. We need to
use this regulator to solve a stability issue related to noisy DC2DC
line in the silicon.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy
2009-07-17 09:30:14 -07:00
committed by John W. Linville
parent 436b37c594
commit 02c06e4abc
2 changed files with 11 additions and 1 deletions
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7
drivers/net/wireless/iwlwifi/iwl-5000.c
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@@ -239,6 +239,13 @@ static void iwl5000_nic_config(struct iwl_priv *priv)
APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_1000) {
/* Setting digital SVR for 1000 card to 1.32V */
iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
APMG_SVR_DIGITAL_VOLTAGE_1_32,
~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
}
spin_unlock_irqrestore(&priv->lock, flags);
}