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alpha: Fix de2104x driver failing to readout MAC address correctly 

This patch fixes a missing read memory barrier that is needed for the
driver to readout the MAC address correctly from the on-board ROM.
Also it replaces the use of the deprecated functions readl()/writel().

Signed-off-by: Morten H. Larsen <m-larsen@post6.tele.dk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Morten H. Larsen 2010-06-15 13:24:58 -04:00 committed by Matt Turner
parent 932e0c201d
commit 84cc1535cb
1 changed files with 3 additions and 2 deletions
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5
drivers/net/tulip/de2104x.c
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@ -367,8 +367,8 @@ static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
#define dr32(reg) readl(de->regs + (reg))
#define dw32(reg,val) writel((val), de->regs + (reg))
#define dr32(reg) ioread32(de->regs + (reg))
#define dw32(reg, val) iowrite32((val), de->regs + (reg))
static void de_rx_err_acct (struct de_private *de, unsigned rx_tail,
@ -1706,6 +1706,7 @@ static void __devinit de21040_get_mac_address (struct de_private *de)
int value, boguscnt = 100000;
do {
value = dr32(ROMCmd);
rmb();
} while (value < 0 && --boguscnt > 0);
de->dev->dev_addr[i] = value;
udelay(1);