---

yaml
---
r: 208765
b: refs/heads/master
c: 84bbc16
h: refs/heads/master
i:
  208763: 1904310
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c8bef14051b261f86278fad84ccc23c891242d25
+refs/heads/master: 84bbc16c1f6210b2dfc39344b132d5801c357a70

trunk/arch/arm/mach-s5pv310/include/mach/irqs.h

@@ -0,0 +1,74 @@
+/* linux/arch/arm/mach-s5pv310/include/mach/irqs.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5PV210 - IRQ definitions
+ *
+ * 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.
+*/
+
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H __FILE__
+
+#include <plat/irqs.h>
+
+/* Private Peripheral Interrupt */
+#define IRQ_PPI(x)		S5P_IRQ(x+16)
+
+#define IRQ_LOCALTIMER		IRQ_PPI(13)
+
+/* Shared Peripheral Interrupt */
+#define IRQ_SPI(x)		S5P_IRQ(x+32)
+
+#define IRQ_EINT0		IRQ_SPI(40)
+#define IRQ_EINT1		IRQ_SPI(41)
+#define IRQ_EINT2		IRQ_SPI(42)
+#define IRQ_EINT3		IRQ_SPI(43)
+#define IRQ_USB_HSOTG		IRQ_SPI(44)
+#define IRQ_USB_HOST		IRQ_SPI(45)
+#define IRQ_MODEM_IF		IRQ_SPI(46)
+#define IRQ_ROTATOR		IRQ_SPI(47)
+#define IRQ_JPEG		IRQ_SPI(48)
+#define IRQ_2D			IRQ_SPI(49)
+#define IRQ_PCIE		IRQ_SPI(50)
+#define IRQ_SYSTEM_TIMER	IRQ_SPI(51)
+#define IRQ_MFC			IRQ_SPI(52)
+#define IRQ_WTD			IRQ_SPI(53)
+#define IRQ_AUDIO_SS		IRQ_SPI(54)
+#define IRQ_AC97		IRQ_SPI(55)
+#define IRQ_SPDIF		IRQ_SPI(56)
+#define IRQ_KEYPAD		IRQ_SPI(57)
+#define IRQ_INTFEEDCTRL_SSS	IRQ_SPI(58)
+#define IRQ_SLIMBUS		IRQ_SPI(59)
+#define IRQ_PMU			IRQ_SPI(60)
+#define IRQ_TSI			IRQ_SPI(61)
+#define IRQ_SATA		IRQ_SPI(62)
+#define IRQ_GPS			IRQ_SPI(63)
+
+#define MAX_IRQ_IN_COMBINER	8
+#define COMBINER_GROUP(x)	((x) * MAX_IRQ_IN_COMBINER + IRQ_SPI(64))
+#define COMBINER_IRQ(x, y)	(COMBINER_GROUP(x) + y)
+
+#define IRQ_TIMER0_VIC		COMBINER_IRQ(22, 0)
+#define IRQ_TIMER1_VIC		COMBINER_IRQ(22, 1)
+#define IRQ_TIMER2_VIC		COMBINER_IRQ(22, 2)
+#define IRQ_TIMER3_VIC		COMBINER_IRQ(22, 3)
+#define IRQ_TIMER4_VIC		COMBINER_IRQ(22, 4)
+
+#define IRQ_UART0		COMBINER_IRQ(26, 0)
+#define IRQ_UART1		COMBINER_IRQ(26, 1)
+#define IRQ_UART2		COMBINER_IRQ(26, 2)
+#define IRQ_UART3		COMBINER_IRQ(26, 3)
+#define IRQ_UART4		COMBINER_IRQ(26, 4)
+
+#define IRQ_IIC			COMBINER_IRQ(27, 0)
+
+/* Set the default NR_IRQS */
+#define NR_IRQS			COMBINER_IRQ(MAX_COMBINER_NR, 0)
+
+#define MAX_COMBINER_NR		39
+
+#endif /* ASM_ARCH_IRQS_H */

trunk/arch/arm/mach-s5pv310/include/mach/regs-irq.h

@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5pv310/include/mach/regs-irq.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5PV310 - IRQ register definitions
+ *
+ * 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.
+*/
+
+#ifndef __ASM_ARCH_REGS_IRQ_H
+#define __ASM_ARCH_REGS_IRQ_H __FILE__
+
+#include <asm/hardware/gic.h>
+#include <mach/map.h>
+
+#endif /* __ASM_ARCH_REGS_IRQ_H */

trunk/arch/arm/mach-s5pv310/irq-combiner.c

@@ -0,0 +1,125 @@
+/* linux/arch/arm/mach-s5pv310/irq-combiner.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Based on arch/arm/common/gic.c
+ *
+ * IRQ COMBINER support
+ *
+ * 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/io.h>
+
+#include <asm/mach/irq.h>
+
+#define COMBINER_ENABLE_SET	0x0
+#define COMBINER_ENABLE_CLEAR	0x4
+#define COMBINER_INT_STATUS	0xC
+
+static DEFINE_SPINLOCK(irq_controller_lock);
+
+struct combiner_chip_data {
+	unsigned int irq_offset;
+	void __iomem *base;
+};
+
+static struct combiner_chip_data combiner_data[MAX_COMBINER_NR];
+
+static inline void __iomem *combiner_base(unsigned int irq)
+{
+	struct combiner_chip_data *combiner_data = get_irq_chip_data(irq);
+	return combiner_data->base;
+}
+
+static void combiner_mask_irq(unsigned int irq)
+{
+	u32 mask = 1 << (irq % 32);
+
+	__raw_writel(mask, combiner_base(irq) + COMBINER_ENABLE_CLEAR);
+}
+
+static void combiner_unmask_irq(unsigned int irq)
+{
+	u32 mask = 1 << (irq % 32);
+
+	__raw_writel(mask, combiner_base(irq) + COMBINER_ENABLE_SET);
+}
+
+static void combiner_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
+{
+	struct combiner_chip_data *chip_data = get_irq_data(irq);
+	struct irq_chip *chip = get_irq_chip(irq);
+	unsigned int cascade_irq, combiner_irq;
+	unsigned long status;
+
+	/* primary controller ack'ing */
+	chip->ack(irq);
+
+	spin_lock(&irq_controller_lock);
+	status = __raw_readl(chip_data->base + COMBINER_INT_STATUS);
+	spin_unlock(&irq_controller_lock);
+
+	if (status == 0)
+		goto out;
+
+	for (combiner_irq = 0; combiner_irq < 32; combiner_irq++) {
+		if (status & 0x1)
+			break;
+		status >>= 1;
+	}
+
+	cascade_irq = combiner_irq + (chip_data->irq_offset & ~31);
+	if (unlikely(cascade_irq >= NR_IRQS))
+		do_bad_IRQ(cascade_irq, desc);
+	else
+		generic_handle_irq(cascade_irq);
+
+ out:
+	/* primary controller unmasking */
+	chip->unmask(irq);
+}
+
+static struct irq_chip combiner_chip = {
+	.name		= "COMBINER",
+	.mask		= combiner_mask_irq,
+	.unmask		= combiner_unmask_irq,
+};
+
+void __init combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq)
+{
+	if (combiner_nr >= MAX_COMBINER_NR)
+		BUG();
+	if (set_irq_data(irq, &combiner_data[combiner_nr]) != 0)
+		BUG();
+	set_irq_chained_handler(irq, combiner_handle_cascade_irq);
+}
+
+void __init combiner_init(unsigned int combiner_nr, void __iomem *base,
+			  unsigned int irq_start)
+{
+	unsigned int i;
+
+	if (combiner_nr >= MAX_COMBINER_NR)
+		BUG();
+
+	combiner_data[combiner_nr].base = base;
+	combiner_data[combiner_nr].irq_offset = irq_start;
+
+	/* Disable all interrupts */
+
+	__raw_writel(0xffffffff, base + COMBINER_ENABLE_CLEAR);
+
+	/* Setup the Linux IRQ subsystem */
+
+	for (i = irq_start; i < combiner_data[combiner_nr].irq_offset
+				+ MAX_IRQ_IN_COMBINER; i++) {
+		set_irq_chip(i, &combiner_chip);
+		set_irq_chip_data(i, &combiner_data[combiner_nr]);
+		set_irq_handler(i, handle_level_irq);
+		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
+	}
+}

trunk/arch/arm/plat-s5p/irq.c

@@ -56,11 +56,13 @@ static struct s3c_uart_irq uart_irqs[] = {
 
 void __init s5p_init_irq(u32 *vic, u32 num_vic)
 {
+#ifdef CONFIG_ARM_VIC
 	int irq;
 
 	/* initialize the VICs */
 	for (irq = 0; irq < num_vic; irq++)
 		vic_init(VA_VIC(irq), VIC_BASE(irq), vic[irq], 0);
+#endif
 
 	s3c_init_vic_timer_irq(IRQ_TIMER0_VIC, IRQ_TIMER0);
 	s3c_init_vic_timer_irq(IRQ_TIMER1_VIC, IRQ_TIMER1);