From: David Brownell dbrownell@users.sourceforge.net
Make the U-Boot dm9000 driver read addresses from EEPROM just like Linux does ... read six bytes, instead of reading twelve bytes then discarding every one.
Using the right Ethernet address is a big win.
Signed-off-by: David Brownell dbrownell@users.sourceforge.net --- drivers/net/dm9000x.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/net/dm9000x.c +++ b/drivers/net/dm9000x.c @@ -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