forked from luck/tmp_suning_uos_patched
m32r: Fix ei_tx_timeout() in drivers/net/lib8390.c
Change INT0 trigger mode from edge-sense mode to level-sense mode, in order to fix the following timeout error: 'NETDEV WATCHDOG: eth0: transmit timed out'. This patch is required only for the Mappi platform. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Cc: Hitoshi Yamamoto <hitoshiy@linux-m32r.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -45,7 +45,8 @@ static void mask_and_ack_mappi(unsigned int irq)
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static void end_mappi_irq(unsigned int irq)
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{
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enable_mappi_irq(irq);
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if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
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enable_mappi_irq(irq);
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}
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static unsigned int startup_mappi_irq(unsigned int irq)
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@ -88,7 +89,7 @@ void __init init_IRQ(void)
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irq_desc[M32R_IRQ_INT0].chip = &mappi_irq_type;
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irq_desc[M32R_IRQ_INT0].action = NULL;
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irq_desc[M32R_IRQ_INT0].depth = 1;
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icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
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icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD11;
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disable_mappi_irq(M32R_IRQ_INT0);
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#endif /* CONFIG_M32R_NE2000 */
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@ -219,15 +219,6 @@ static void ei_tx_timeout(struct net_device *dev)
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int txsr, isr, tickssofar = jiffies - dev->trans_start;
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unsigned long flags;
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#if defined(CONFIG_M32R) && defined(CONFIG_SMP)
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unsigned long icucr;
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local_irq_save(flags);
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icucr = inl(M32R_ICU_CR1_PORTL);
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icucr |= M32R_ICUCR_ISMOD11;
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outl(icucr, M32R_ICU_CR1_PORTL);
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local_irq_restore(flags);
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#endif
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ei_local->stat.tx_errors++;
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spin_lock_irqsave(&ei_local->page_lock, flags);
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