From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 arch/sh/boards/mach-se/770x/irq.c | 108 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 arch/sh/boards/mach-se/770x/irq.c

(limited to 'arch/sh/boards/mach-se/770x/irq.c')

diff --git a/arch/sh/boards/mach-se/770x/irq.c b/arch/sh/boards/mach-se/770x/irq.c
new file mode 100644
index 000000000..1028c17b8
--- /dev/null
+++ b/arch/sh/boards/mach-se/770x/irq.c
@@ -0,0 +1,108 @@
+/*
+ * linux/arch/sh/boards/se/770x/irq.c
+ *
+ * Copyright (C) 2000  Kazumoto Kojima
+ * Copyright (C) 2006  Nobuhiro Iwamatsu
+ *
+ * Hitachi SolutionEngine Support.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <mach-se/mach/se.h>
+
+static struct ipr_data ipr_irq_table[] = {
+	/*
+	* Super I/O (Just mimic PC):
+	*  1: keyboard
+	*  3: serial 0
+	*  4: serial 1
+	*  5: printer
+	*  6: floppy
+	*  8: rtc
+	* 12: mouse
+	* 14: ide0
+	*/
+#if defined(CONFIG_CPU_SUBTYPE_SH7705)
+	/* This is default value */
+	{ 13, 0, 8,  0x0f-13, },
+	{ 5 , 0, 4,  0x0f- 5, },
+	{ 10, 1, 0,  0x0f-10, },
+	{ 7 , 2, 4,  0x0f- 7, },
+	{ 3 , 2, 0,  0x0f- 3, },
+	{ 1 , 3, 12, 0x0f- 1, },
+	{ 12, 3, 4,  0x0f-12, }, /* LAN */
+	{ 2 , 4, 8,  0x0f- 2, }, /* PCIRQ2 */
+	{ 6 , 4, 4,  0x0f- 6, }, /* PCIRQ1 */
+	{ 14, 4, 0,  0x0f-14, }, /* PCIRQ0 */
+	{ 0 , 5, 12, 0x0f   , }, 
+	{ 4 , 5, 4,  0x0f- 4, },
+	{ 8 , 6, 12, 0x0f- 8, },
+	{ 9 , 6, 8,  0x0f- 9, },
+	{ 11, 6, 4,  0x0f-11, },
+#else
+	{ 14, 0,  8, 0x0f-14, },
+	{ 12, 0,  4, 0x0f-12, },
+	{  8, 1,  4, 0x0f- 8, },
+	{  6, 2, 12, 0x0f- 6, },
+	{  5, 2,  8, 0x0f- 5, },
+	{  4, 2,  4, 0x0f- 4, },
+	{  3, 2,  0, 0x0f- 3, },
+	{  1, 3, 12, 0x0f- 1, },
+#if defined(CONFIG_STNIC)
+	/* ST NIC */
+	{ 10, 3,  4, 0x0f-10, }, 	/* LAN */
+#endif
+	/* MRSHPC IRQs setting */
+	{  0, 4, 12, 0x0f- 0, },	/* PCIRQ3 */
+	{ 11, 4,  8, 0x0f-11, }, 	/* PCIRQ2 */
+	{  9, 4,  4, 0x0f- 9, }, 	/* PCIRQ1 */
+	{  7, 4,  0, 0x0f- 7, }, 	/* PCIRQ0 */
+	/* #2, #13 are allocated for SLOT IRQ #1 and #2 (for now) */
+	/* NOTE: #2 and #13 are not used on PC */
+	{ 13, 6,  4, 0x0f-13, }, 	/* SLOTIRQ2 */
+	{  2, 6,  0, 0x0f- 2, }, 	/* SLOTIRQ1 */
+#endif
+};
+
+static unsigned long ipr_offsets[] = {
+	BCR_ILCRA,
+	BCR_ILCRB,
+	BCR_ILCRC,
+	BCR_ILCRD,
+	BCR_ILCRE,
+	BCR_ILCRF,
+	BCR_ILCRG,
+};
+
+static struct ipr_desc ipr_irq_desc = {
+	.ipr_offsets	= ipr_offsets,
+	.nr_offsets	= ARRAY_SIZE(ipr_offsets),
+
+	.ipr_data	= ipr_irq_table,
+	.nr_irqs	= ARRAY_SIZE(ipr_irq_table),
+	.chip = {
+		.name	= "IPR-se770x",
+	},
+};
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_se_IRQ(void)
+{
+	/* Disable all interrupts */
+	__raw_writew(0, BCR_ILCRA);
+	__raw_writew(0, BCR_ILCRB);
+	__raw_writew(0, BCR_ILCRC);
+	__raw_writew(0, BCR_ILCRD);
+	__raw_writew(0, BCR_ILCRE);
+	__raw_writew(0, BCR_ILCRF);
+	__raw_writew(0, BCR_ILCRG);
+
+	register_ipr_controller(&ipr_irq_desc);
+}
-- 
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