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dm9000 EEPROM reading bugfix

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Make the U-Boot dm9000 driver read addresses from EEPROM just
like Linux does ... read six bytes, instead of reading twelve
bytes and then discarding every other one.

Using the right Ethernet address is a big win.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
This commit is contained in:
David Brownell 2009-04-16 23:15:15 -07:00 committed by Wolfgang Denk
parent d4c02e6f5d
commit ad74cae9ff
1 changed files with 6 additions and 6 deletions
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12
drivers/net/dm9000x.c
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@ -113,7 +113,7 @@ void eth_halt(void);
static int dm9000_probe(void);
static u16 phy_read(int);
static void phy_write(int, u16);
u16 read_srom_word(int);
static void read_srom_word(int, u8 *);
static u8 DM9000_ior(int);
static void DM9000_iow(int reg, u8 value);
@ -348,8 +348,8 @@ eth_init(bd_t * bd)
/* Set Node address */
if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
#if !defined(CONFIG_AT91SAM9261EK)
for (i = 0; i < 6; i++)
enetaddr[i] = read_srom_word(i);
for (i = 0; i < 3; i++)
read_srom_word(i, enetaddr + 2 * i);
eth_setenv_enetaddr("ethaddr", enetaddr);
#endif
}
@ -541,14 +541,14 @@ eth_rx(void)
/*
Read a word data from SROM
*/
u16
read_srom_word(int offset)
static void read_srom_word(int offset, u8 *to)
{
DM9000_iow(DM9000_EPAR, offset);
DM9000_iow(DM9000_EPCR, 0x4);
udelay(8000);
DM9000_iow(DM9000_EPCR, 0x0);
return (DM9000_ior(DM9000_EPDRL) + (DM9000_ior(DM9000_EPDRH) << 8));
to[0] = DM9000_ior(DM9000_EPDRL);
to[1] = DM9000_ior(DM9000_EPDRH);
}
void