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ar71xx: mask out reserved bits from the dma tx status in the ethernet driver

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SVN-Revision: 18599
This commit is contained in:
Felix Fietkau 2009-11-29 13:38:03 +00:00
parent 896090973f
commit cb85dcb1a8
1 changed files with 13 additions and 6 deletions
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19
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
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@ -318,6 +318,7 @@ static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
static void ag71xx_dma_reset(struct ag71xx *ag)
{
u32 val;
int i;
ag71xx_dump_dma_regs(ag);
@ -340,13 +341,19 @@ static void ag71xx_dma_reset(struct ag71xx *ag)
ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF);
ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR);
if (ag71xx_rr(ag, AG71XX_REG_RX_STATUS))
printk(KERN_ALERT "%s: unable to clear DMA Rx status\n",
ag->dev->name);
val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
if (val)
printk(KERN_ALERT "%s: unable to clear DMA Rx status: %08x\n",
ag->dev->name, val);
if (ag71xx_rr(ag, AG71XX_REG_TX_STATUS))
printk(KERN_ALERT "%s: unable to clear DMA Tx status\n",
ag->dev->name);
val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
/* mask out reserved bits */
val &= ~0xff000000;
if (val)
printk(KERN_ALERT "%s: unable to clear DMA Tx status: %08x\n",
ag->dev->name, val);
ag71xx_dump_dma_regs(ag);
}