ath9k_hw: Offload USB eeprom reading to target
For USB devices, reading the EEPROM data can be offloaded
to the target. Use multiple register reads to take advantage
of this feature to reduce initialization time.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_4k.c b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
index fbdff7e..bc77a30 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
@@ -27,19 +27,13 @@
return ((ah->eeprom.map4k.baseEepHeader.version) & 0xFFF);
}
-static bool ath9k_hw_4k_fill_eeprom(struct ath_hw *ah)
-{
#define SIZE_EEPROM_4K (sizeof(struct ar5416_eeprom_4k) / sizeof(u16))
+
+static bool __ath9k_hw_4k_fill_eeprom(struct ath_hw *ah)
+{
struct ath_common *common = ath9k_hw_common(ah);
u16 *eep_data = (u16 *)&ah->eeprom.map4k;
- int addr, eep_start_loc = 0;
-
- eep_start_loc = 64;
-
- if (!ath9k_hw_use_flash(ah)) {
- ath_dbg(common, ATH_DBG_EEPROM,
- "Reading from EEPROM, not flash\n");
- }
+ int addr, eep_start_loc = 64;
for (addr = 0; addr < SIZE_EEPROM_4K; addr++) {
if (!ath9k_hw_nvram_read(common, addr + eep_start_loc, eep_data)) {
@@ -51,9 +45,34 @@
}
return true;
-#undef SIZE_EEPROM_4K
}
+static bool __ath9k_hw_usb_4k_fill_eeprom(struct ath_hw *ah)
+{
+ u16 *eep_data = (u16 *)&ah->eeprom.map4k;
+
+ ath9k_hw_usb_gen_fill_eeprom(ah, eep_data, 64, SIZE_EEPROM_4K);
+
+ return true;
+}
+
+static bool ath9k_hw_4k_fill_eeprom(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (!ath9k_hw_use_flash(ah)) {
+ ath_dbg(common, ATH_DBG_EEPROM,
+ "Reading from EEPROM, not flash\n");
+ }
+
+ if (common->bus_ops->ath_bus_type == ATH_USB)
+ return __ath9k_hw_usb_4k_fill_eeprom(ah);
+ else
+ return __ath9k_hw_4k_fill_eeprom(ah);
+}
+
+#undef SIZE_EEPROM_4K
+
static int ath9k_hw_4k_check_eeprom(struct ath_hw *ah)
{
#define EEPROM_4K_SIZE (sizeof(struct ar5416_eeprom_4k) / sizeof(u16))