ARM: kirkwood: use devicetree for orion-spi

Populate the devices with auxdata to set the device names which are used by
clkdev to lookup the clocks.

Signed-off-by: Michael Walle <micheal@walle.cc>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
v2: Add interrupts properties, although not used.
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 27ac3d8..8f8da5d 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -26,6 +26,11 @@
 	{ }
 };
 
+struct of_dev_auxdata kirkwood_auxdata_lookup[] __initdata = {
+	OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
+	{},
+};
+
 static void __init kirkwood_dt_init(void)
 {
 	pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk);
@@ -69,7 +74,8 @@
 	if (of_machine_is_compatible("raidsonic,ib-nas62x0"))
 		ib62x0_init();
 
-	of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL);
+	of_platform_populate(NULL, kirkwood_dt_match_table,
+			     kirkwood_auxdata_lookup, NULL);
 }
 
 static const char *kirkwood_dt_board_compat[] = {