net/wireless: ipw2200: introduce ipw_read_eeprom function

We separate reading of device's eeprom content from writing it back
to the device's sram.

Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 0036737fe8e3fb54be0b780ba66508d7fc869d57..254b8922327690127013f848b487fb372fa21c93 100644 (file)
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -2701,6 +2701,20 @@ static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
        memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6);
 }
 
+static void ipw_read_eeprom(struct ipw_priv *priv)
+{
+       int i;
+       __le16 *eeprom = (__le16 *) priv->eeprom;
+
+       IPW_DEBUG_TRACE(">>\n");
+
+       /* read entire contents of eeprom into private buffer */
+       for (i = 0; i < 128; i++)
+               eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i));
+
+       IPW_DEBUG_TRACE("<<\n");
+}
+
 /*
  * Either the device driver (i.e. the host) or the firmware can
  * load eeprom data into the designated region in SRAM.  If neither
@@ -2712,14 +2726,9 @@ static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
 static void ipw_eeprom_init_sram(struct ipw_priv *priv)
 {
        int i;
-       __le16 *eeprom = (__le16 *) priv->eeprom;
 
        IPW_DEBUG_TRACE(">>\n");
 
-       /* read entire contents of eeprom into private buffer */
-       for (i = 0; i < 128; i++)
-               eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i));
-
        /*
           If the data looks correct, then copy it to our private
           copy.  Otherwise let the firmware know to perform the operation
@@ -3643,8 +3652,10 @@ static int ipw_load(struct ipw_priv *priv)
        /* ack fw init done interrupt */
        ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
 
-       /* read eeprom data and initialize the eeprom region of sram */
+       /* read eeprom data */
        priv->eeprom_delay = 1;
+       ipw_read_eeprom(priv);
+       /* initialize the eeprom region of sram */
        ipw_eeprom_init_sram(priv);
 
        /* enable interrupts */