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authorBen Dooks <ben-linux@fluff.org>2008-10-21 14:06:51 +0100
committerBen Dooks <ben-linux@fluff.org>2008-12-15 21:51:22 +0000
commitd9b79fb56829de34eaddb01b405216eddd0d3b10 (patch)
tree3b22ecbb2946d237590f34efd558ac58fb8fc90b
parentd626aeedc96e21a048f1a300cd6360f3a7be10f2 (diff)
[ARM] S3C64XX: Add VIC0 and VIC1 sourced interripts
Add and initialise the two VIC (PL192) found on the S3C64XX series CPUs. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
-rw-r--r--arch/arm/mach-s3c6410/cpu.c6
-rw-r--r--arch/arm/plat-s3c/include/plat/cpu.h1
-rw-r--r--arch/arm/plat-s3c64xx/Kconfig1
-rw-r--r--arch/arm/plat-s3c64xx/Makefile1
-rw-r--r--arch/arm/plat-s3c64xx/include/plat/irqs.h3
-rw-r--r--arch/arm/plat-s3c64xx/include/plat/s3c6410.h1
-rw-r--r--arch/arm/plat-s3c64xx/irq.c34
7 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c6410/cpu.c b/arch/arm/mach-s3c6410/cpu.c
index fbca763fa48..c3e317c1650 100644
--- a/arch/arm/mach-s3c6410/cpu.c
+++ b/arch/arm/mach-s3c6410/cpu.c
@@ -58,6 +58,12 @@ void __init s3c6410_init_clocks(int xtal)
s3c24xx_register_baseclocks(xtal);
}
+void __init s3c6410_init_irq(void)
+{
+ /* VIC0 is missing IRQ7, VIC1 is fully populated. */
+ s3c64xx_init_irq(~0 & ~(1 << 7), ~0);
+}
+
struct sysdev_class s3c6410_sysclass = {
.name = "s3c6410-core",
};
diff --git a/arch/arm/plat-s3c/include/plat/cpu.h b/arch/arm/plat-s3c/include/plat/cpu.h
index 011157ea871..6d89a4637f3 100644
--- a/arch/arm/plat-s3c/include/plat/cpu.h
+++ b/arch/arm/plat-s3c/include/plat/cpu.h
@@ -44,6 +44,7 @@ extern void s3c_init_cpu(unsigned long idcode,
/* core initialisation functions */
extern void s3c24xx_init_irq(void);
+extern void s3c64xx_init_irq(u32 vic0, u32 vic1);
extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
diff --git a/arch/arm/plat-s3c64xx/Kconfig b/arch/arm/plat-s3c64xx/Kconfig
index 756c166051b..14d6343b54e 100644
--- a/arch/arm/plat-s3c64xx/Kconfig
+++ b/arch/arm/plat-s3c64xx/Kconfig
@@ -10,6 +10,7 @@ config PLAT_S3C64XX
bool
depends on ARCH_S3C64XX
select PLAT_S3C
+ select ARM_VIC
default y
select NO_IOPORT
select ARCH_REQUIRE_GPIOLIB
diff --git a/arch/arm/plat-s3c64xx/Makefile b/arch/arm/plat-s3c64xx/Makefile
index 5d9a1d86ab8..9be8ed59977 100644
--- a/arch/arm/plat-s3c64xx/Makefile
+++ b/arch/arm/plat-s3c64xx/Makefile
@@ -14,3 +14,4 @@ obj- :=
obj-y += dev-uart.o
obj-y += cpu.o
+obj-y += irq.o
diff --git a/arch/arm/plat-s3c64xx/include/plat/irqs.h b/arch/arm/plat-s3c64xx/include/plat/irqs.h
index 0092b5cba4a..3564dfbec85 100644
--- a/arch/arm/plat-s3c64xx/include/plat/irqs.h
+++ b/arch/arm/plat-s3c64xx/include/plat/irqs.h
@@ -24,6 +24,9 @@
#define S3C_IRQ(x) ((x) + S3C_IRQ_OFFSET)
+#define S3C_VIC0_BASE S3C_IRQ(0)
+#define S3C_VIC1_BASE S3C_IRQ(32)
+
/* UART interrupts, each UART has 4 intterupts per channel so
* use the space between the ISA and S3C main interrupts. Note, these
* are not in the same order as the S3C24XX series! */
diff --git a/arch/arm/plat-s3c64xx/include/plat/s3c6410.h b/arch/arm/plat-s3c64xx/include/plat/s3c6410.h
index 56f14b5d454..50dcdd6f680 100644
--- a/arch/arm/plat-s3c64xx/include/plat/s3c6410.h
+++ b/arch/arm/plat-s3c64xx/include/plat/s3c6410.h
@@ -15,6 +15,7 @@
#ifdef CONFIG_CPU_S3C6410
extern int s3c6410_init(void);
+extern void s3c6410_init_irq(void);
extern void s3c6410_map_io(void);
extern void s3c6410_init_clocks(int xtal);
diff --git a/arch/arm/plat-s3c64xx/irq.c b/arch/arm/plat-s3c64xx/irq.c
new file mode 100644
index 00000000000..308dc4198a1
--- /dev/null
+++ b/arch/arm/plat-s3c64xx/irq.c
@@ -0,0 +1,34 @@
+/* arch/arm/plat-s3c64xx/irq.c
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ * http://armlinux.simtec.co.uk/
+ *
+ * S3C64XX - Interrupt handling
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+
+#include <asm/hardware/vic.h>
+#include <asm/irq.h>
+
+#include <mach/map.h>
+#include <plat/cpu.h>
+
+void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid)
+{
+ printk(KERN_INFO "%s: initialising interrupts\n", __func__);
+
+ /* initialise the pair of VICs */
+ vic_init(S3C_VA_VIC0, S3C_VIC0_BASE, vic0_valid);
+ vic_init(S3C_VA_VIC1, S3C_VIC1_BASE, vic1_valid);
+}
+
+