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cns3xxx: fix shared PCI interrupt mapping 

This patch originally failed to combine INTA/B/C/D onto a single ARM CPU
interrupt. Instead, it mapped INTA/B/C and excluded D. This patch
corrects the issue by mapping all four interrupts to the single ARM CPU
interrupt. The original intent of the patch still holds as the newer PCB
take advantage of isolated interrupts. This fix only applies to older
PCB's that do not route INTA/B/C/D to unique external ARM CPU
interrupts.

Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>

SVN-Revision: 42830
lede-17.01
Felix Fietkau 2014-10-07 10:37:48 +00:00
parent 0563e0225e
commit 736419452b
1 changed files with 2 additions and 5 deletions
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7
target/linux/cns3xxx/patches-3.10/310-pci_isolated_interrupts.patch
View File

@ -30,7 +30,7 @@
#include <linux/gpio.h>
#include <linux/dma-mapping.h>
#include <linux/serial_core.h>
@@ -869,12 +870,45 @@ static int laguna_register_gpio(struct g
@@ -869,12 +870,42 @@ static int laguna_register_gpio(struct g
return ret;
}
@ -70,10 +70,7 @@
+ }
+ printk("laguna: using shared PCI interrupts: irq%d\n",
+ IRQ_CNS3XXX_PCIE0_DEVICE);
+ irqs[0] = IRQ_CNS3XXX_PCIE0_DEVICE;
+ irqs[1] = IRQ_CNS3XXX_PCIE0_DEVICE;
+ irqs[2] = IRQ_CNS3XXX_PCIE0_DEVICE;
+ return cns3xxx_pcie_init(irqs, NULL);
+ return cns3xxx_pcie_init(NULL, NULL);
}
subsys_initcall(laguna_pcie_init);