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Diffstat (limited to 'arch/sh/boards/mach-se/770x/irq.c')
-rw-r--r--arch/sh/boards/mach-se/770x/irq.c108
1 files changed, 108 insertions, 0 deletions
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 00000000000..cdb0807928a
--- /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 <asm/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 */
+ ctrl_outw(0, BCR_ILCRA);
+ ctrl_outw(0, BCR_ILCRB);
+ ctrl_outw(0, BCR_ILCRC);
+ ctrl_outw(0, BCR_ILCRD);
+ ctrl_outw(0, BCR_ILCRE);
+ ctrl_outw(0, BCR_ILCRF);
+ ctrl_outw(0, BCR_ILCRG);
+
+ register_ipr_controller(&ipr_irq_desc);
+}