Merge branch 'dt-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
* 'dt-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board
ARM: OMAP2+: Remove extra ifdefs for board-generic
ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected
ARM: OMAP2+: board-generic: Use of_irq_init API
arm/dts: OMAP3: Add interrupt-controller bindings for INTC
ARM: OMAP2/3: intc: Add DT support for TI interrupt controller
diff --git a/Documentation/devicetree/bindings/arm/omap/intc.txt b/Documentation/devicetree/bindings/arm/omap/intc.txt
new file mode 100644
index 0000000..f2583e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/intc.txt
@@ -0,0 +1,27 @@
+* OMAP Interrupt Controller
+
+OMAP2/3 are using a TI interrupt controller that can support several
+configurable number of interrupts.
+
+Main node required properties:
+
+- compatible : should be:
+ "ti,omap2-intc"
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+ interrupt source. The type shall be a <u32> and the value shall be 1.
+
+ The cell contains the interrupt number in the range [0-128].
+- ti,intc-size: Number of interrupts handled by the interrupt controller.
+- reg: physical base address and size of the intc registers map.
+
+Example:
+
+ intc: interrupt-controller@1 {
+ compatible = "ti,omap2-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ ti,intc-size = <96>;
+ reg = <0x48200000 0x1000>;
+ };
+
diff --git a/arch/arm/boot/dts/am3517_mt_ventoux.dts b/arch/arm/boot/dts/am3517_mt_ventoux.dts
new file mode 100644
index 0000000..5eb26d7
--- /dev/null
+++ b/arch/arm/boot/dts/am3517_mt_ventoux.dts
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2011 Ilya Yanok, EmCraft Systems
+ *
+ * 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.
+ */
+/dts-v1/;
+
+/include/ "omap3.dtsi"
+
+/ {
+ model = "TeeJet Mt.Ventoux";
+ compatible = "teejet,mt_ventoux", "ti,omap3";
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x10000000>; /* 256 MB */
+ };
+
+ /* AM35xx doesn't have IVA */
+ soc {
+ iva {
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index e698064..c612135 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -61,10 +61,12 @@
ranges;
ti,hwmods = "l3_main";
- intc: interrupt-controller@1 {
- compatible = "ti,omap3-intc";
+ intc: interrupt-controller@48200000 {
+ compatible = "ti,omap2-intc";
interrupt-controller;
#interrupt-cells = <1>;
+ ti,intc-size = <96>;
+ reg = <0x48200000 0x1000>;
};
uart1: serial@4806a000 {
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 02d7e82..74e1687 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -12,6 +12,7 @@
* published by the Free Software Foundation.
*/
#include <linux/io.h>
+#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/irqdomain.h>
#include <linux/i2c/twl.h>
@@ -24,33 +25,23 @@
#include "common.h"
#include "common-board-devices.h"
-/*
- * XXX: Still needed to boot until the i2c & twl driver is adapted to
- * device-tree
- */
-#ifdef CONFIG_ARCH_OMAP4
-static struct twl4030_platform_data sdp4430_twldata = {
- .irq_base = TWL6030_IRQ_BASE,
- .irq_end = TWL6030_IRQ_END,
-};
-
-static void __init omap4_i2c_init(void)
-{
- omap4_pmic_init("twl6030", &sdp4430_twldata);
-}
+#if !(defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3))
+#define omap_intc_of_init NULL
+#endif
+#ifndef CONFIG_ARCH_OMAP4
+#define gic_of_init NULL
#endif
-#ifdef CONFIG_ARCH_OMAP3
-static struct twl4030_platform_data beagle_twldata = {
- .irq_base = TWL4030_IRQ_BASE,
- .irq_end = TWL4030_IRQ_END,
+static struct of_device_id irq_match[] __initdata = {
+ { .compatible = "ti,omap2-intc", .data = omap_intc_of_init, },
+ { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
+ { }
};
-static void __init omap3_i2c_init(void)
+static void __init omap_init_irq(void)
{
- omap3_pmic_init("twl4030", &beagle_twldata);
+ of_irq_init(irq_match);
}
-#endif
static struct of_device_id omap_dt_match_table[] __initdata = {
{ .compatible = "simple-bus", },
@@ -58,39 +49,13 @@
{ }
};
-static struct of_device_id intc_match[] __initdata = {
- { .compatible = "ti,omap3-intc", },
- { .compatible = "arm,cortex-a9-gic", },
- { }
-};
-
static void __init omap_generic_init(void)
{
- struct device_node *node = of_find_matching_node(NULL, intc_match);
- if (node)
- irq_domain_add_legacy(node, 32, 0, 0, &irq_domain_simple_ops, NULL);
-
omap_sdrc_init(NULL, NULL);
of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
}
-#ifdef CONFIG_ARCH_OMAP4
-static void __init omap4_init(void)
-{
- omap4_i2c_init();
- omap_generic_init();
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-static void __init omap3_init(void)
-{
- omap3_i2c_init();
- omap_generic_init();
-}
-#endif
-
#ifdef CONFIG_SOC_OMAP2420
static const char *omap242x_boards_compat[] __initdata = {
"ti,omap2420",
@@ -101,7 +66,7 @@
.reserve = omap_reserve,
.map_io = omap242x_map_io,
.init_early = omap2420_init_early,
- .init_irq = omap2_init_irq,
+ .init_irq = omap_init_irq,
.handle_irq = omap2_intc_handle_irq,
.init_machine = omap_generic_init,
.timer = &omap2_timer,
@@ -120,7 +85,7 @@
.reserve = omap_reserve,
.map_io = omap243x_map_io,
.init_early = omap2430_init_early,
- .init_irq = omap2_init_irq,
+ .init_irq = omap_init_irq,
.handle_irq = omap2_intc_handle_irq,
.init_machine = omap_generic_init,
.timer = &omap2_timer,
@@ -130,6 +95,22 @@
#endif
#ifdef CONFIG_ARCH_OMAP3
+static struct twl4030_platform_data beagle_twldata = {
+ .irq_base = TWL4030_IRQ_BASE,
+ .irq_end = TWL4030_IRQ_END,
+};
+
+static void __init omap3_i2c_init(void)
+{
+ omap3_pmic_init("twl4030", &beagle_twldata);
+}
+
+static void __init omap3_init(void)
+{
+ omap3_i2c_init();
+ omap_generic_init();
+}
+
static const char *omap3_boards_compat[] __initdata = {
"ti,omap3",
NULL,
@@ -139,7 +120,7 @@
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = omap3430_init_early,
- .init_irq = omap3_init_irq,
+ .init_irq = omap_init_irq,
.handle_irq = omap3_intc_handle_irq,
.init_machine = omap3_init,
.timer = &omap3_timer,
@@ -149,6 +130,22 @@
#endif
#ifdef CONFIG_ARCH_OMAP4
+static struct twl4030_platform_data sdp4430_twldata = {
+ .irq_base = TWL6030_IRQ_BASE,
+ .irq_end = TWL6030_IRQ_END,
+};
+
+static void __init omap4_i2c_init(void)
+{
+ omap4_pmic_init("twl6030", &sdp4430_twldata);
+}
+
+static void __init omap4_init(void)
+{
+ omap4_i2c_init();
+ omap_generic_init();
+}
+
static const char *omap4_boards_compat[] __initdata = {
"ti,omap4",
NULL,
@@ -158,7 +155,7 @@
.reserve = omap_reserve,
.map_io = omap4_map_io,
.init_early = omap4430_init_early,
- .init_irq = gic_init_irq,
+ .init_irq = omap_init_irq,
.handle_irq = gic_handle_irq,
.init_machine = omap4_init,
.timer = &omap4_timer,
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 7e9338e8..99604d3 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -175,6 +175,18 @@
extern void __iomem *omap4_get_l2cache_base(void);
#endif
+struct device_node;
+#ifdef CONFIG_OF
+int __init omap_intc_of_init(struct device_node *node,
+ struct device_node *parent);
+#else
+int __init omap_intc_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ return 0;
+}
+#endif
+
#ifdef CONFIG_SMP
extern void __iomem *omap4_get_scu_base(void);
#else
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 1fef061..26eaf37 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -11,12 +11,16 @@
* for more details.
*/
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/exception.h>
#include <asm/mach/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
/* selected INTC register offsets */
@@ -57,6 +61,8 @@
},
};
+static struct irq_domain *domain;
+
/* Structure to save interrupt controller context */
struct omap3_intc_regs {
u32 sysconfig;
@@ -147,17 +153,27 @@
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
}
-static void __init omap_init_irq(u32 base, int nr_irqs)
+static void __init omap_init_irq(u32 base, int nr_irqs,
+ struct device_node *node)
{
void __iomem *omap_irq_base;
unsigned long nr_of_irqs = 0;
unsigned int nr_banks = 0;
- int i, j;
+ int i, j, irq_base;
omap_irq_base = ioremap(base, SZ_4K);
if (WARN_ON(!omap_irq_base))
return;
+ irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0);
+ if (irq_base < 0) {
+ pr_warn("Couldn't allocate IRQ numbers\n");
+ irq_base = 0;
+ }
+
+ domain = irq_domain_add_legacy(node, nr_irqs, irq_base, 0,
+ &irq_domain_simple_ops, NULL);
+
for (i = 0; i < ARRAY_SIZE(irq_banks); i++) {
struct omap_irq_bank *bank = irq_banks + i;
@@ -166,36 +182,36 @@
/* Static mapping, never released */
bank->base_reg = ioremap(base, SZ_4K);
if (!bank->base_reg) {
- printk(KERN_ERR "Could not ioremap irq bank%i\n", i);
+ pr_err("Could not ioremap irq bank%i\n", i);
continue;
}
omap_irq_bank_init_one(bank);
for (j = 0; j < bank->nr_irqs; j += 32)
- omap_alloc_gc(bank->base_reg + j, j, 32);
+ omap_alloc_gc(bank->base_reg + j, j + irq_base, 32);
nr_of_irqs += bank->nr_irqs;
nr_banks++;
}
- printk(KERN_INFO "Total of %ld interrupts on %d active controller%s\n",
- nr_of_irqs, nr_banks, nr_banks > 1 ? "s" : "");
+ pr_info("Total of %ld interrupts on %d active controller%s\n",
+ nr_of_irqs, nr_banks, nr_banks > 1 ? "s" : "");
}
void __init omap2_init_irq(void)
{
- omap_init_irq(OMAP24XX_IC_BASE, 96);
+ omap_init_irq(OMAP24XX_IC_BASE, 96, NULL);
}
void __init omap3_init_irq(void)
{
- omap_init_irq(OMAP34XX_IC_BASE, 96);
+ omap_init_irq(OMAP34XX_IC_BASE, 96, NULL);
}
void __init ti81xx_init_irq(void)
{
- omap_init_irq(OMAP34XX_IC_BASE, 128);
+ omap_init_irq(OMAP34XX_IC_BASE, 128, NULL);
}
static inline void omap_intc_handle_irq(void __iomem *base_addr, struct pt_regs *regs)
@@ -225,8 +241,10 @@
irqnr = readl_relaxed(base_addr + INTCPS_SIR_IRQ_OFFSET);
irqnr &= ACTIVEIRQ_MASK;
- if (irqnr)
+ if (irqnr) {
+ irqnr = irq_find_mapping(domain, irqnr);
handle_IRQ(irqnr, regs);
+ }
} while (irqnr);
}
@@ -236,6 +254,28 @@
omap_intc_handle_irq(base_addr, regs);
}
+int __init omap_intc_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ struct resource res;
+ u32 nr_irqs = 96;
+
+ if (WARN_ON(!node))
+ return -ENODEV;
+
+ if (of_address_to_resource(node, 0, &res)) {
+ WARN(1, "unable to get intc registers\n");
+ return -EINVAL;
+ }
+
+ if (of_property_read_u32(node, "ti,intc-size", &nr_irqs))
+ pr_warn("unable to get intc-size, default to %d\n", nr_irqs);
+
+ omap_init_irq(res.start, nr_irqs, of_node_get(node));
+
+ return 0;
+}
+
#ifdef CONFIG_ARCH_OMAP3
static struct omap3_intc_regs intc_context[ARRAY_SIZE(irq_banks)];
