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path: root/drivers/dm9000x.c
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Diffstat (limited to 'drivers/dm9000x.c')
-rw-r--r--drivers/dm9000x.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/dm9000x.c b/drivers/dm9000x.c
index 78acb09..6131b5c 100644
--- a/drivers/dm9000x.c
+++ b/drivers/dm9000x.c
@@ -99,7 +99,7 @@ void eth_halt(void);
static int dm9000_probe(void);
static u16 phy_read(int);
static void phy_write(int, u16);
-static u16 read_srom_word(int);
+u16 read_srom_word(int);
static u8 DM9000_ior(int);
static void DM9000_iow(int reg, u8 value);
@@ -303,8 +303,8 @@ eth_init(bd_t * bd)
for (i = 0; i < 6; i++)
((u16 *) bd->bi_enetaddr)[i] = read_srom_word(i);
- if (!is_zero_ether_addr(bd->bi_enetaddr) &&
- !is_mutlicast_ether_addr(bd->bi_enetaddr)) {
+ if (is_zero_ether_addr(bd->bi_enetaddr) ||
+ is_multicast_ether_addr(bd->bi_enetaddr)) {
/* try reading from environment */
u8 i;
char *s, *e;
@@ -537,16 +537,28 @@ eth_rx(void)
/*
Read a word data from SROM
*/
-static u16
+u16
read_srom_word(int offset)
{
DM9000_iow(DM9000_EPAR, offset);
DM9000_iow(DM9000_EPCR, 0x4);
- udelay(200);
+ udelay(8000);
DM9000_iow(DM9000_EPCR, 0x0);
return (DM9000_ior(DM9000_EPDRL) + (DM9000_ior(DM9000_EPDRH) << 8));
}
+void
+write_srom_word(int offset, u16 val)
+{
+ DM9000_iow(DM9000_EPAR, offset);
+ DM9000_iow(DM9000_EPDRH, ((val >> 8) & 0xff));
+ DM9000_iow(DM9000_EPDRL, (val & 0xff));
+ DM9000_iow(DM9000_EPCR, 0x12);
+ udelay(8000);
+ DM9000_iow(DM9000_EPCR, 0);
+}
+
+
/*
Read a byte from I/O port
*/