[72/98] r8169: fix broken register writes

From: Greg KH
Date: Mon May 10 2010 - 19:08:04 EST


2.6.32-stable review patch. If anyone has any objections, please let us know.

------------------

From: Francois Romieu <romieu@xxxxxxxxxxxxx>

commit 78f1cd02457252e1ffbc6caa44a17424a45286b8 upstream.

This is quite similar to b39fe41f481d20c201012e4483e76c203802dda7
though said registers are not even documented as 64-bit registers
- as opposed to the initial TxDescStartAddress ones - but as single
bytes which must be combined into 32 bits at the MMIO read/write
level before being merged into a 64 bit logical entity.

Credits go to Ben Hutchings <ben@xxxxxxxxxxxxxxx> for the MAR
registers (aka "multicast is broken for ages on ARM) and to
Timo Teräs <timo.teras@xxxxxx> for the MAC registers.

Signed-off-by: Francois Romieu <romieu@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/net/r8169.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2832,8 +2832,8 @@ static void rtl_rar_set(struct rtl8169_p
spin_lock_irq(&tp->lock);

RTL_W8(Cfg9346, Cfg9346_Unlock);
- RTL_W32(MAC0, low);
RTL_W32(MAC4, high);
+ RTL_W32(MAC0, low);
RTL_W8(Cfg9346, Cfg9346_Lock);

spin_unlock_irq(&tp->lock);
@@ -4814,8 +4814,8 @@ static void rtl_set_rx_mode(struct net_d
mc_filter[1] = swab32(data);
}

- RTL_W32(MAR0 + 0, mc_filter[0]);
RTL_W32(MAR0 + 4, mc_filter[1]);
+ RTL_W32(MAR0 + 0, mc_filter[0]);

RTL_W32(RxConfig, tmp);



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