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authorHauke Mehrtens <hauke@hauke-m.de>2013-01-04 00:51:23 +0100
committerJohn W. Linville <linville@tuxdriver.com>2013-01-07 15:18:28 -0500
commitdb5230d1b3c5f7c62564de2ef07ea1c633548959 (patch)
tree321466ce514db44f57614ddabd9e09c83c6f8af8 /drivers/bcma
parent7401cb63d00994dbdfdc2916b949b22e27475436 (diff)
downloadvexpress-lsk-db5230d1b3c5f7c62564de2ef07ea1c633548959.tar.gz
bcma: mips: show also disabled IRQs
Some cores do not have a IRQ assigned and some do not support when an IRQ is assigned to them, this is now handled and printed out in the code. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/bcma')
-rw-r--r--drivers/bcma/driver_mips.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c
index 486aa2dba58..69815079a6d 100644
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -74,11 +74,16 @@ static u32 bcma_core_mips_irqflag(struct bcma_device *dev)
return dev->core_index;
flag = bcma_aread32(dev, BCMA_MIPS_OOBSELOUTA30);
- return flag & 0x1F;
+ if (flag)
+ return flag & 0x1F;
+ else
+ return 0x3f;
}
/* Get the MIPS IRQ assignment for a specified device.
* If unassigned, 0 is returned.
+ * If disabled, 5 is returned.
+ * If not supported, 6 is returned.
*/
unsigned int bcma_core_mips_irq(struct bcma_device *dev)
{
@@ -87,13 +92,15 @@ unsigned int bcma_core_mips_irq(struct bcma_device *dev)
unsigned int irq;
irqflag = bcma_core_mips_irqflag(dev);
+ if (irqflag == 0x3f)
+ return 6;
- for (irq = 1; irq <= 4; irq++)
+ for (irq = 0; irq <= 4; irq++)
if (bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq)) &
(1 << irqflag))
return irq;
- return 0;
+ return 5;
}
EXPORT_SYMBOL(bcma_core_mips_irq);
@@ -114,7 +121,7 @@ static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq)
bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0),
bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) &
~(1 << irqflag));
- else
+ else if (oldirq != 5)
bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(oldirq), 0);
/* assign the new one */
@@ -144,7 +151,7 @@ static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq)
}
bcma_debug(bus, "set_irq: core 0x%04x, irq %d => %d\n",
- dev->id.id, oldirq + 2, irq + 2);
+ dev->id.id, oldirq <= 4 ? oldirq + 2 : 0, irq + 2);
}
static void bcma_core_mips_set_irq_name(struct bcma_bus *bus, unsigned int irq,