From 7a0907bd399f6f2d40906c6d38ed1814d314ef74 Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Thu, 19 Apr 2018 14:05:19 +1200 Subject: [PATCH] net-next: ax88796: Fix MAC address reading To read the MAC address from the (virtual) SAprom, the remote DMA unit needs to be set up like for every other process access to card-local memory. Signed-off-by: Michael Karcher Signed-off-by: Michael Schmitz Signed-off-by: David S. Miller --- drivers/net/ethernet/8390/ax88796.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c index da61cf3cb3a9..ae3937535838 100644 --- a/drivers/net/ethernet/8390/ax88796.c +++ b/drivers/net/ethernet/8390/ax88796.c @@ -669,10 +669,16 @@ static int ax_init_dev(struct net_device *dev) if (ax->plat->flags & AXFLG_HAS_EEPROM) { unsigned char SA_prom[32]; + ei_outb(6, ioaddr + EN0_RCNTLO); + ei_outb(0, ioaddr + EN0_RCNTHI); + ei_outb(0, ioaddr + EN0_RSARLO); + ei_outb(0, ioaddr + EN0_RSARHI); + ei_outb(E8390_RREAD + E8390_START, ioaddr + NE_CMD); for (i = 0; i < sizeof(SA_prom); i += 2) { SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT); SA_prom[i + 1] = ei_inb(ioaddr + NE_DATAPORT); } + ei_outb(ENISR_RDC, ioaddr + EN0_ISR); /* Ack intr. */ if (ax->plat->wordlength == 2) for (i = 0; i < 16; i++) -- 2.30.2