ARM: GIC: provide a single initialization function for boot CPU

Provide gic_init() which initializes the GIC distributor and current
CPU's GIC interface for the boot (or single) CPU.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

5 files changed, 25 insertions, 22 deletions

diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index f269710..241bcbc 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -365,20 +365,20 @@ static void __init gic_init_irq(void)
 
 		/* core tile GIC, primary */
 		gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE);
-		gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29);
-		gic_cpu_init(0, gic_cpu_base_addr);
+		gic_init(0, 29, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE),
+			 gic_cpu_base_addr);
 
 #ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
 		/* board GIC, secondary */
-		gic_dist_init(1, __io_address(REALVIEW_EB_GIC_DIST_BASE), 64);
-		gic_cpu_init(1, __io_address(REALVIEW_EB_GIC_CPU_BASE));
+		gic_init(1, 64, __io_address(REALVIEW_EB_GIC_DIST_BASE),
+			 __io_address(REALVIEW_EB_GIC_CPU_BASE));
 		gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1);
 #endif
 	} else {
 		/* board GIC, primary */
 		gic_cpu_base_addr = __io_address(REALVIEW_EB_GIC_CPU_BASE);
-		gic_dist_init(0, __io_address(REALVIEW_EB_GIC_DIST_BASE), 29);
-		gic_cpu_init(0, gic_cpu_base_addr);
+		gic_init(0, 29, __io_address(REALVIEW_EB_GIC_DIST_BASE),
+			 gic_cpu_base_addr);
 	}
 }
 
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index a412561..8047b19 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -305,12 +305,14 @@ static void __init gic_init_irq(void)
 {
 	/* ARM1176 DevChip GIC, primary */
 	gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE);
-	gic_dist_init(0, __io_address(REALVIEW_DC1176_GIC_DIST_BASE), IRQ_DC1176_GIC_START);
-	gic_cpu_init(0, gic_cpu_base_addr);
+	gic_init(0, IRQ_DC1176_GIC_START,
+		 __io_address(REALVIEW_DC1176_GIC_DIST_BASE),
+		 gic_cpu_base_addr);
 
 	/* board GIC, secondary */
-	gic_dist_init(1, __io_address(REALVIEW_PB1176_GIC_DIST_BASE), IRQ_PB1176_GIC_START);
-	gic_cpu_init(1, __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
+	gic_init(1, IRQ_PB1176_GIC_START,
+		 __io_address(REALVIEW_PB1176_GIC_DIST_BASE),
+		 __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
 	gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
 }
 
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index 117b95b..6120426 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/arch/arm/mach-realview/realview_pb11mp.c
@@ -310,12 +310,13 @@ static void __init gic_init_irq(void)
 
 	/* ARM11MPCore test chip GIC, primary */
 	gic_cpu_base_addr = __io_address(REALVIEW_TC11MP_GIC_CPU_BASE);
-	gic_dist_init(0, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), 29);
-	gic_cpu_init(0, gic_cpu_base_addr);
+	gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE),
+		 gic_cpu_base_addr);
 
 	/* board GIC, secondary */
-	gic_dist_init(1, __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), IRQ_PB11MP_GIC_START);
-	gic_cpu_init(1, __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
+	gic_init(1, IRQ_PB11MP_GIC_START,
+		 __io_address(REALVIEW_PB11MP_GIC_DIST_BASE),
+		 __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
 	gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
 }
 
diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
index 929b8dc..90f492a 100644
--- a/arch/arm/mach-realview/realview_pba8.c
+++ b/arch/arm/mach-realview/realview_pba8.c
@@ -274,8 +274,9 @@ static void __init gic_init_irq(void)
 {
 	/* ARM PB-A8 on-board GIC */
 	gic_cpu_base_addr = __io_address(REALVIEW_PBA8_GIC_CPU_BASE);
-	gic_dist_init(0, __io_address(REALVIEW_PBA8_GIC_DIST_BASE), IRQ_PBA8_GIC_START);
-	gic_cpu_init(0, __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
+	gic_init(0, IRQ_PBA8_GIC_START,
+		 __io_address(REALVIEW_PBA8_GIC_DIST_BASE),
+		 __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
 }
 
 static void __init realview_pba8_timer_init(void)
diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c
index b9f9e20..86f28f7 100644
--- a/arch/arm/mach-realview/realview_pbx.c
+++ b/arch/arm/mach-realview/realview_pbx.c
@@ -314,14 +314,13 @@ static void __init gic_init_irq(void)
 	/* ARM PBX on-board GIC */
 	if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
 		gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE);
-		gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
-			      29);
-		gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
+		gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
+			 __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
 	} else {
 		gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE);
-		gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE),
-			      IRQ_PBX_GIC_START);
-		gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE));
+		gic_init(0, IRQ_PBX_GIC_START,
+			 __io_address(REALVIEW_PBX_GIC_DIST_BASE),
+			 __io_address(REALVIEW_PBX_GIC_CPU_BASE));
 	}
 }