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m32r: Fix ei_tx_timeout() in drivers/net/lib8390.c

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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>
This commit is contained in:
Hirokazu Takata 2007-07-26 10:41:19 -07:00 committed by Linus Torvalds
parent b5445f956e
commit 4fc09385c7
2 changed files with 3 additions and 11 deletions
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5
arch/m32r/kernel/setup_mappi.c
View file

@ -45,7 +45,8 @@ static void mask_and_ack_mappi(unsigned int irq)
static void end_mappi_irq(unsigned int irq)
{
enable_mappi_irq(irq);
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
enable_mappi_irq(irq);
}
static unsigned int startup_mappi_irq(unsigned int irq)
@ -88,7 +89,7 @@ void __init init_IRQ(void)
irq_desc[M32R_IRQ_INT0].chip = &mappi_irq_type;
irq_desc[M32R_IRQ_INT0].action = NULL;
irq_desc[M32R_IRQ_INT0].depth = 1;
icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD11;
disable_mappi_irq(M32R_IRQ_INT0);
#endif /* CONFIG_M32R_NE2000 */

9
drivers/net/lib8390.c
View file

@ -219,15 +219,6 @@ static void ei_tx_timeout(struct net_device *dev)
int txsr, isr, tickssofar = jiffies - dev->trans_start;
unsigned long flags;
#if defined(CONFIG_M32R) && defined(CONFIG_SMP)
unsigned long icucr;
local_irq_save(flags);
icucr = inl(M32R_ICU_CR1_PORTL);
icucr |= M32R_ICUCR_ISMOD11;
outl(icucr, M32R_ICU_CR1_PORTL);
local_irq_restore(flags);
#endif
ei_local->stat.tx_errors++;
spin_lock_irqsave(&ei_local->page_lock, flags);