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Don't use the MAC address in the device tree if it's all zeroes

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(i.e. 00-00-00-00-00-00). Use the currently programmed address
instead.

While here, simplify the function.
This commit is contained in:
Marcel Moolenaar 2011-01-28 23:40:13 +00:00
parent 6d7967de8a
commit df0437ca6f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=218050
1 changed files with 10 additions and 19 deletions
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29
sys/dev/tsec/if_tsec_fdt.c
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@ -320,17 +320,15 @@ tsec_get_hwaddr(struct tsec_softc *sc, uint8_t *addr)
union {
uint32_t reg[2];
uint8_t addr[6];
} curmac;
uint32_t a[6];
uint8_t lma[6];
} hw;
int i;
/*
* Retrieve hw address from the device tree.
*/
i = OF_getprop(sc->node, "local-mac-address", (void *)lma, 6);
if (i == 6) {
bcopy(lma, addr, 6);
hw.reg[0] = hw.reg[1] = 0;
/* Retrieve the hardware address from the device tree. */
i = OF_getprop(sc->node, "local-mac-address", (void *)hw.addr, 6);
if (i == 6 && (hw.reg[0] != 0 || hw.reg[1] != 0)) {
bcopy(hw.addr, addr, 6);
return;
}
@ -338,15 +336,8 @@ tsec_get_hwaddr(struct tsec_softc *sc, uint8_t *addr)
* Fall back -- use the currently programmed address in the hope that
* it was set be firmware...
*/
curmac.reg[0] = TSEC_READ(sc, TSEC_REG_MACSTNADDR1);
curmac.reg[1] = TSEC_READ(sc, TSEC_REG_MACSTNADDR2);
hw.reg[0] = TSEC_READ(sc, TSEC_REG_MACSTNADDR1);
hw.reg[1] = TSEC_READ(sc, TSEC_REG_MACSTNADDR2);
for (i = 0; i < 6; i++)
a[5-i] = curmac.addr[i];
addr[0] = a[0];
addr[1] = a[1];
addr[2] = a[2];
addr[3] = a[3];
addr[4] = a[4];
addr[5] = a[5];
addr[5-i] = hw.addr[i];
}