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From 7d03f5a48e4d90854275b06433626243b3b3db17 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 30 Dec 2011 23:44:33 +0000
Subject: [PATCH] 8139cp/8139too: do not read into reserved registers
delay_eeprom() use long read for Cfg9346 register(offset 0x50) which may read
into the area of reserved register(offset 0x53). Use byte read instead.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/realtek/8139cp.c | 2 +-
drivers/net/ethernet/realtek/8139too.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -1590,7 +1590,7 @@ static int cp_set_mac_address(struct net
No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
*/
-#define eeprom_delay() readl(ee_addr)
+#define eeprom_delay() readb(ee_addr)
/* The EEPROM commands include the alway-set leading bit. */
#define EE_EXTEND_CMD (4)
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -1122,7 +1122,7 @@ static void __devexit rtl8139_remove_one
No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
*/
-#define eeprom_delay() (void)RTL_R32(Cfg9346)
+#define eeprom_delay() (void)RTL_R8(Cfg9346)
/* The EEPROM commands include the alway-set leading bit. */
#define EE_WRITE_CMD (5)
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