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yaml
---
r: 62866
b: refs/heads/master
c: bca03c6
h: refs/heads/master
v: v3
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Randy Vinson authored and Kumar Gala committed Jul 24, 2007
1 parent eba294f commit b794768
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Showing 2 changed files with 26 additions and 12 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 637e9e13a1f87d414954c854bcf8c5b16dc6face
refs/heads/master: bca03c6bddc03bba893c86fdf735ecef418159ea
36 changes: 25 additions & 11 deletions trunk/arch/powerpc/platforms/85xx/mpc85xx_cds.c
Original file line number Diff line number Diff line change
Expand Up @@ -183,10 +183,6 @@ static void __init mpc85xx_cds_pic_init(void)
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
#if defined(CONFIG_PPC_I8259) && defined(CONFIG_PCI)
struct device_node *cascade_node = NULL;
int cascade_irq;
#endif

np = of_find_node_by_type(np, "open-pic");

Expand All @@ -210,8 +206,19 @@ static void __init mpc85xx_cds_pic_init(void)
of_node_put(np);

mpic_init(mpic);
}

#if defined(CONFIG_PPC_I8259) && defined(CONFIG_PCI)
static int mpc85xx_cds_8259_attach(void)
{
int ret;
struct device_node *np = NULL;
struct device_node *cascade_node = NULL;
int cascade_irq;

if (!machine_is(mpc85xx_cds))
return 0;

/* Initialize the i8259 controller */
for_each_node_by_type(np, "interrupt-controller")
if (of_device_is_compatible(np, "chrp,iic")) {
Expand All @@ -221,13 +228,13 @@ static void __init mpc85xx_cds_pic_init(void)

if (cascade_node == NULL) {
printk(KERN_DEBUG "Could not find i8259 PIC\n");
return;
return -ENODEV;
}

cascade_irq = irq_of_parse_and_map(cascade_node, 0);
if (cascade_irq == NO_IRQ) {
printk(KERN_ERR "Failed to map cascade interrupt\n");
return;
return -ENXIO;
}

i8259_init(cascade_node, 0);
Expand All @@ -239,14 +246,21 @@ static void __init mpc85xx_cds_pic_init(void)
* disabled when the last user of the shared IRQ line frees their
* interrupt.
*/
if (setup_irq(cascade_irq, &mpc85xxcds_8259_irqaction))
if ((ret = setup_irq(cascade_irq, &mpc85xxcds_8259_irqaction))) {
printk(KERN_ERR "Failed to setup cascade interrupt\n");
else
/* Success. Connect our low-level cascade handler. */
set_irq_handler(cascade_irq, mpc85xx_8259_cascade_handler);
#endif /* CONFIG_PPC_I8259 */
return ret;
}

/* Success. Connect our low-level cascade handler. */
set_irq_handler(cascade_irq, mpc85xx_8259_cascade_handler);

return 0;
}

device_initcall(mpc85xx_cds_8259_attach);

#endif /* CONFIG_PPC_I8259 */

/*
* Setup the architecture
*/
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