[PATCH] 3c59x: reload EEPROM values at rmmod for needy cards

Enable reload of EEPROM values in reset at rmmod for cards that need it,
similar to old EEPROM_NORESET flag but in reverse.

(Most?) 3c905 and (some?) 3c905B cards need an additional bit unmasked in
the reset at rmmod or else they don't get reinitialized properly when the
driver is reloaded.
Signed-of-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/net/3c59x.c

@@ -387,7 +387,7 @@ enum {	IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8,
 	HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
 	INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
 	EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000,
-	EXTRA_PREAMBLE=0x8000, };
+	EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, };
 
 enum vortex_chips {
 	CH_3C590 = 0,
@@ -475,16 +475,16 @@ static struct vortex_chip_info {
 	{"3c900B-FL Cyclone 10base-FL",
 	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
 	{"3c905 Boomerang 100baseTx",
-	 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII, 64, },
+	 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
 	{"3c905 Boomerang 100baseT4",
-	 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII, 64, },
+	 PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
 	{"3c905B Cyclone 100baseTx",
-	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE|EEPROM_RESET, 128, },
 
 	{"3c905B Cyclone 10/100/BNC",
-	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
+	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EEPROM_RESET, 128, },
 	{"3c905B-FX Cyclone 100baseFx",
-	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
+	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EEPROM_RESET, 128, },
 	{"3c905C Tornado",
 	PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
 	{"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
@@ -535,7 +535,7 @@ static struct vortex_chip_info {
 	{"3c982 Hydra Dual Port B",
 	 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
 	{"3c905B-T4",
-	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+	 PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE|EEPROM_RESET, 128, },
 	{"3c920B-EMB-WNM Tornado",
 	 PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
 
@@ -3170,7 +3170,8 @@ static void __devexit vortex_remove_one (struct pci_dev *pdev)
 			pci_restore_state(VORTEX_PCI(vp));
 	}
 	/* Should really use issue_and_wait() here */
-	outw(TotalReset|0x14, dev->base_addr + EL3_CMD);
+	outw(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
+	     dev->base_addr + EL3_CMD);
 
 	pci_free_consistent(pdev,
 						sizeof(struct boom_rx_desc) * RX_RING_SIZE