ARM: sirf: enable sparse IRQ

Now that both irqchips for sirf are converted to not rely on
legacy domains, let's move all of the platform over to sparse
IRQ.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/Kconfig

@@ -427,6 +427,7 @@ config ARCH_SIRF
 	select PINCTRL
 	select PINCTRL_SIRF
 	select USE_OF
+	select SPARSE_IRQ
 	help
 	  Support for CSR SiRFprimaII/Marco/Polo platforms
 

arch/arm/mach-prima2/common.c

@@ -45,6 +45,7 @@ static const char *atlas6_dt_match[] __initdata = {
 
 DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
+	.nr_irqs	= 128,
 	.map_io         = sirfsoc_map_io,
 	.init_irq	= irqchip_init,
 	.init_time	= sirfsoc_prima2_timer_init,
@@ -63,6 +64,7 @@ static const char *prima2_dt_match[] __initdata = {
 
 DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
+	.nr_irqs	= 128,
 	.map_io         = sirfsoc_map_io,
 	.init_irq	= irqchip_init,
 	.init_time	= sirfsoc_prima2_timer_init,

arch/arm/mach-prima2/include/mach/irqs.h

@@ -1,17 +0,0 @@
-/*
- * arch/arm/mach-prima2/include/mach/irqs.h
- *
- * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- *
- * Licensed under GPLv2 or later.
- */
-
-#ifndef __ASM_ARCH_IRQS_H
-#define __ASM_ARCH_IRQS_H
-
-#define SIRFSOC_INTENAL_IRQ_START  0
-#define SIRFSOC_INTENAL_IRQ_END    127
-#define SIRFSOC_GPIO_IRQ_START     (SIRFSOC_INTENAL_IRQ_END + 1)
-#define NR_IRQS	288
-
-#endif