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imx8: get mac address from OTP rom

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This commit is contained in:
cinap_lenrek 2022-07-10 12:02:00 +00:00
parent fdd3e1808f
commit fe14f67c92
1 changed files with 15 additions and 11 deletions
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26
sys/src/9/imx8/etherimx.c
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@ -655,18 +655,22 @@ ctl(Ether*, void*, long len)
static int
reset(Ether *edev)
{
Ctlr *ctlr = edev->ctlr;
u32int paddr1, paddr2;
enum {
OCOTP_HW_OCOTP_MAC_ADDR0 = 0x640/4,
OCOTP_HW_OCOTP_MAC_ADDR1 = 0x650/4,
};
static u32int *ocotp = (u32int*)(VIRTIO + 0x350000);
u32int a0, a1;
/* steal mac address from uboot */
paddr1 = rr(ctlr, ENET_PALR);
paddr2 = rr(ctlr, ENET_PAUR);
edev->ea[0] = paddr1>>24;
edev->ea[1] = paddr1>>16;
edev->ea[2] = paddr1>>8;
edev->ea[3] = paddr1>>0;
edev->ea[4] = paddr2>>24;
edev->ea[5] = paddr2>>16;
a0 = ocotp[OCOTP_HW_OCOTP_MAC_ADDR0];
a1 = ocotp[OCOTP_HW_OCOTP_MAC_ADDR1];
edev->ea[0] = a1>>8;
edev->ea[1] = a1>>0;
edev->ea[2] = a0>>24;
edev->ea[3] = a0>>16;
edev->ea[4] = a0>>8;
edev->ea[5] = a0>>0;
shutdown(edev);