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 <[email protected]>
Cc: Hitoshi Yamamoto <[email protected]>
---
arch/m32r/kernel/setup_mappi.c | 5 +++--
drivers/net/lib8390.c | 9 ---------
2 files changed, 3 insertions(+), 11 deletions(-)
diff --git a/arch/m32r/kernel/setup_mappi.c b/arch/m32r/kernel/setup_mappi.c
index 6b2d77d..fe73c9e 100644
--- a/arch/m32r/kernel/setup_mappi.c
+++ b/arch/m32r/kernel/setup_mappi.c
@@ -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 */
diff --git a/drivers/net/lib8390.c b/drivers/net/lib8390.c
index 5c86e73..721ee38 100644
--- a/drivers/net/lib8390.c
+++ b/drivers/net/lib8390.c
@@ -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);
--
1.5.2.3
--
Hirokazu Takata <[email protected]>
Linux/M32R Project: http://www.linux-m32r.org/
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