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[realtek] Use explicit values for RCR.RXFTH and RCR.MXDMA

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Some RTL8169 cards (observed with an RTL8169SC) power up with invalid
values in RCR.RXFTH and RCR.MXDMA, causing receive DMA to fail.  Fix
by setting explicit values for both fields.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2012-08-23 12:25:08 +01:00
parent b0ba892333
commit 5d05220ee0
2 changed files with 10 additions and 2 deletions
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src/drivers/net/realtek.c
+4 -2
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@@ -526,8 +526,10 @@ static int realtek_open ( struct net_device *netdev ) {
/* Configure receiver */
rcr = readl ( rtl->regs + RTL_RCR );
rcr &= ~( RTL_RCR_RBLEN_MASK );
rcr |= ( RTL_RCR_RBLEN_DEFAULT | RTL_RCR_WRAP | RTL_RCR_AB |
rcr &= ~( RTL_RCR_RXFTH_MASK | RTL_RCR_RBLEN_MASK |
RTL_RCR_MXDMA_MASK );
rcr |= ( RTL_RCR_RXFTH_DEFAULT | RTL_RCR_RBLEN_DEFAULT |
RTL_RCR_MXDMA_DEFAULT | RTL_RCR_WRAP | RTL_RCR_AB |
RTL_RCR_AM | RTL_RCR_APM | RTL_RCR_AAP );
writel ( rcr, rtl->regs + RTL_RCR );