sh: mach-sdk7786: Split out FPGA IRQ controller setup.

This moves out the FPGA IRQ controller setup code to its own file, in
preparation for switching off of IRL mode and having it provide its own
irq_chip.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

3 files changed, 52 insertions, 38 deletions

diff --git a/arch/sh/boards/mach-sdk7786/Makefile b/arch/sh/boards/mach-sdk7786/Makefile
index 50c8065..a29f19e 100644
--- a/arch/sh/boards/mach-sdk7786/Makefile
+++ b/arch/sh/boards/mach-sdk7786/Makefile
@@ -1 +1 @@
-obj-y	:= setup.o fpga.o
+obj-y	:= setup.o fpga.o irq.o
diff --git a/arch/sh/boards/mach-sdk7786/irq.c b/arch/sh/boards/mach-sdk7786/irq.c
new file mode 100644
index 0000000..46943a0
--- /dev/null
+++ b/arch/sh/boards/mach-sdk7786/irq.c
@@ -0,0 +1,48 @@
+/*
+ * SDK7786 FPGA IRQ Controller Support.
+ *
+ * Copyright (C) 2010  Matt Fleming
+ * Copyright (C) 2010  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/irq.h>
+#include <mach/fpga.h>
+#include <mach/irq.h>
+
+enum {
+	ATA_IRQ_BIT		= 1,
+	SPI_BUSY_BIT		= 2,
+	LIRQ5_BIT		= 3,
+	LIRQ6_BIT		= 4,
+	LIRQ7_BIT		= 5,
+	LIRQ8_BIT		= 6,
+	KEY_IRQ_BIT		= 7,
+	PEN_IRQ_BIT		= 8,
+	ETH_IRQ_BIT		= 9,
+	RTC_ALARM_BIT		= 10,
+	CRYSTAL_FAIL_BIT	= 12,
+	ETH_PME_BIT		= 14,
+};
+
+void __init sdk7786_init_irq(void)
+{
+	unsigned int tmp;
+
+	/* Enable priority encoding for all IRLs */
+	fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR);
+
+	/* Clear FPGA interrupt status registers */
+	fpga_write_reg(0x0000, INTASR);
+	fpga_write_reg(0x0000, INTBSR);
+
+	/* Unmask FPGA interrupts */
+	tmp = fpga_read_reg(INTAMR);
+	tmp &= ~(1 << ETH_IRQ_BIT);
+	fpga_write_reg(tmp, INTAMR);
+
+	plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK);
+	plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
+}
diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c
index 8dbbdea..3c3c9a3 100644
--- a/arch/sh/boards/mach-sdk7786/setup.c
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -15,10 +15,11 @@
 #include <linux/i2c.h>
 #include <linux/irq.h>
 #include <linux/clk.h>
+#include <mach/fpga.h>
+#include <mach/irq.h>
 #include <asm/machvec.h>
 #include <asm/heartbeat.h>
 #include <asm/sizes.h>
-#include <mach/fpga.h>
 
 static struct resource heartbeat_resource = {
 	.start		= 0x07fff8b0,
@@ -132,41 +133,6 @@ static int __init sdk7786_devices_setup(void)
 }
 __initcall(sdk7786_devices_setup);
 
-enum {
-	ATA_IRQ_BIT		= 1,
-	SPI_BUSY_BIT		= 2,
-	LIRQ5_BIT		= 3,
-	LIRQ6_BIT		= 4,
-	LIRQ7_BIT		= 5,
-	LIRQ8_BIT		= 6,
-	KEY_IRQ_BIT		= 7,
-	PEN_IRQ_BIT		= 8,
-	ETH_IRQ_BIT		= 9,
-	RTC_ALARM_BIT		= 10,
-	CRYSTAL_FAIL_BIT	= 12,
-	ETH_PME_BIT		= 14,
-};
-
-static void __init init_sdk7786_IRQ(void)
-{
-	unsigned int tmp;
-
-	/* Enable priority encoding for all IRLs */
-	fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR);
-
-	/* Clear FPGA interrupt status registers */
-	fpga_write_reg(0x0000, INTASR);
-	fpga_write_reg(0x0000, INTBSR);
-
-	/* Unmask FPGA interrupts */
-	tmp = fpga_read_reg(INTAMR);
-	tmp &= ~(1 << ETH_IRQ_BIT);
-	fpga_write_reg(tmp, INTAMR);
-
-	plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK);
-	plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
-}
-
 static int sdk7786_mode_pins(void)
 {
 	return fpga_read_reg(MODSWR);
@@ -211,5 +177,5 @@ static struct sh_machine_vector mv_sdk7786 __initmv = {
 	.mv_setup		= sdk7786_setup,
 	.mv_mode_pins		= sdk7786_mode_pins,
 	.mv_clk_init		= sdk7786_clk_init,
-	.mv_init_irq		= init_sdk7786_IRQ,
+	.mv_init_irq		= sdk7786_init_irq,
 };