aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2010-10-02 00:43:43 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-10-02 00:43:43 +0900
commite15f6870a2f2a29abcdb910b80f9629bcf7f5566 (patch)
tree6b43b8755cc5926692a25c6695d3cbfba360368e
parent5924ad0d86fbc05bfb0c90afa15e20ccb7155549 (diff)
downloadkernel_samsung_smdk4412-e15f6870a2f2a29abcdb910b80f9629bcf7f5566.zip
kernel_samsung_smdk4412-e15f6870a2f2a29abcdb910b80f9629bcf7f5566.tar.gz
kernel_samsung_smdk4412-e15f6870a2f2a29abcdb910b80f9629bcf7f5566.tar.bz2
sh: Support userimask for all SH-X3 interrupt controllers.
This shuffles some of the shared bits out of the 7786 code and in to a shared SH-X3 support file. Presently just for userimask, but also a good place for the IRQ balancing wrappers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
-rw-r--r--arch/sh/kernel/cpu/sh4a/Makefile4
-rw-r--r--arch/sh/kernel/cpu/sh4a/intc-shx3.c34
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7786.c16
3 files changed, 36 insertions, 18 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index b144e8a..f2d6542 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -8,13 +8,13 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7763) += setup-sh7763.o
obj-$(CONFIG_CPU_SUBTYPE_SH7770) += setup-sh7770.o
obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o
obj-$(CONFIG_CPU_SUBTYPE_SH7785) += setup-sh7785.o
-obj-$(CONFIG_CPU_SUBTYPE_SH7786) += setup-sh7786.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7786) += setup-sh7786.o intc-shx3.o
obj-$(CONFIG_CPU_SUBTYPE_SH7343) += setup-sh7343.o
obj-$(CONFIG_CPU_SUBTYPE_SH7722) += setup-sh7722.o
obj-$(CONFIG_CPU_SUBTYPE_SH7723) += setup-sh7723.o
obj-$(CONFIG_CPU_SUBTYPE_SH7724) += setup-sh7724.o
obj-$(CONFIG_CPU_SUBTYPE_SH7366) += setup-sh7366.o
-obj-$(CONFIG_CPU_SUBTYPE_SHX3) += setup-shx3.o
+obj-$(CONFIG_CPU_SUBTYPE_SHX3) += setup-shx3.o intc-shx3.o
# SMP setup
smp-$(CONFIG_CPU_SHX3) := smp-shx3.o
diff --git a/arch/sh/kernel/cpu/sh4a/intc-shx3.c b/arch/sh/kernel/cpu/sh4a/intc-shx3.c
new file mode 100644
index 0000000..78c9714
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4a/intc-shx3.c
@@ -0,0 +1,34 @@
+/*
+ * Shared support for SH-X3 interrupt controllers.
+ *
+ * Copyright (C) 2009 - 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 <linux/io.h>
+#include <linux/init.h>
+
+#define INTACK 0xfe4100b8
+#define INTACKCLR 0xfe4100bc
+#define INTC_USERIMASK 0xfe411000
+
+#ifdef CONFIG_INTC_BALANCING
+unsigned int irq_lookup(unsigned int irq)
+{
+ return __raw_readl(INTACK) & 1 ? irq : NO_IRQ_IGNORE;
+}
+
+void irq_finish(unsigned int irq)
+{
+ __raw_writel(irq2evt(irq), INTACKCLR);
+}
+#endif
+
+static int __init shx3_irq_setup(void)
+{
+ return register_intc_userimask(INTC_USERIMASK);
+}
+arch_initcall(shx3_irq_setup);
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 8797723..bbc0a97 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -756,8 +756,6 @@ static struct intc_vect vectors[] __initdata = {
#define INTDISTCR0 0xfe4100b0
#define INTDISTCR1 0xfe4100b4
-#define INTACK 0xfe4100b8
-#define INTACKCLR 0xfe4100bc
#define INT2DISTCR0 0xfe410900
#define INT2DISTCR1 0xfe410904
#define INT2DISTCR2 0xfe410908
@@ -920,19 +918,6 @@ static DECLARE_INTC_DESC(intc_desc_irl4567, "sh7786-irl4567", vectors_irl4567,
#define INTC_INTMSK2 INTMSK2
#define INTC_INTMSKCLR1 CnINTMSKCLR1
#define INTC_INTMSKCLR2 INTMSKCLR2
-#define INTC_USERIMASK 0xfe411000
-
-#ifdef CONFIG_INTC_BALANCING
-unsigned int irq_lookup(unsigned int irq)
-{
- return __raw_readl(INTACK) & 1 ? irq : NO_IRQ_IGNORE;
-}
-
-void irq_finish(unsigned int irq)
-{
- __raw_writel(irq2evt(irq), INTACKCLR);
-}
-#endif
void __init plat_irq_setup(void)
{
@@ -947,7 +932,6 @@ void __init plat_irq_setup(void)
__raw_writel(__raw_readl(INTC_ICR0) & ~0x00c00000, INTC_ICR0);
register_intc_controller(&intc_desc);
- register_intc_userimask(INTC_USERIMASK);
}
void __init plat_irq_setup_pins(int mode)