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