On 08/20/2011 09:48 AM, Shawn Guo wrote:

On Tue, Aug 16, 2011 at 03:34:54PM -0500, Rob Herring wrote:

quoted

From: Rob Herring <redacted>

This adds basic support for the Calxeda Highbank platform.

Signed-off-by: Rob Herring <redacted>
---

[...]

quoted

+void highbank_init_irq(void)
+{
+	struct device_node *node;
+	struct of_intc_desc desc;
+	int n = 0;
+
+	memset(&desc, 0, sizeof(desc));
+	desc.controller = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-gic");
+	gic_of_init(&desc);
+	node = desc.controller;
+	for_each_child_of_node(node, desc.controller) {
+		gic_of_ppi_init(&desc);
+	}
+
+	for_each_compatible_node(node, NULL, "arm,pl061") {
+		irq_domain_add_simple(node, 160 + (8 * n));
+		n++;
+	}
+

160, magic number?  I guess it's the GIC IRQ number has been
discovered in gic_dist_init().  I'm not sure if we should simply
define a macro for it or manage to retrieve it from GIC.

It's the number of GIC irqs. This is temporary until we have dynamic
assignment of linux irq numbers.

Rob