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[realtek] Always set high dword of ring address registers

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Some RTL8169 cards (observed with an RTL8169SC) power up with garbage
values in the ring address registers, and do not clear the registers
on reset.

Fix by always setting the high dword of the ring address registers.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2012-08-23 12:28:50 +01:00
parent a05871d89a
commit b0ba892333
1 changed files with 2 additions and 4 deletions
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6
src/drivers/net/realtek.c
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@@ -409,11 +409,9 @@ static int realtek_create_ring ( struct realtek_nic *rtl,
/* Program ring address */
address = virt_to_bus ( ring->desc );
writel ( ( ( ( uint64_t ) address ) >> 32 ),
rtl->regs + ring->reg + 4 );
writel ( ( address & 0xffffffffUL ), rtl->regs + ring->reg );
if ( sizeof ( physaddr_t ) > sizeof ( uint32_t ) ) {
writel ( ( ( ( uint64_t ) address ) >> 32 ),
rtl->regs + ring->reg + 4 );
}
DBGC ( rtl, "REALTEK %p ring %02x is at [%08llx,%08llx)\n",
rtl, ring->reg, ( ( unsigned long long ) address ),
( ( unsigned long long ) address + ring->len ) );