sh: Shuffle the board directories in to mach groups.

This flattens out the board directories in to individual mach groups,
we will use this for getting rid of unneeded directories, simplifying
the build system, and becoming more coherent with the refactored
arch/sh/include topology.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 76 insertions, 0 deletions

diff --git a/arch/sh/boards/mach-se/7722/irq.c b/arch/sh/boards/mach-se/7722/irq.c
new file mode 100644
index 000000000000..0b03f3f610b8
--- /dev/null
+++ b/arch/sh/boards/mach-se/7722/irq.c
@@ -0,0 +1,76 @@
+/*
+ * linux/arch/sh/boards/se/7722/irq.c
+ *
+ * Copyright (C) 2007  Nobuhiro Iwamatsu
+ *
+ * Hitachi UL SolutionEngine 7722 Support.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/se7722.h>
+
+static void disable_se7722_irq(unsigned int irq)
+{
+	unsigned int bit = irq - SE7722_FPGA_IRQ_BASE;
+	ctrl_outw(ctrl_inw(IRQ01_MASK) | 1 << bit, IRQ01_MASK);
+}
+
+static void enable_se7722_irq(unsigned int irq)
+{
+	unsigned int bit = irq - SE7722_FPGA_IRQ_BASE;
+	ctrl_outw(ctrl_inw(IRQ01_MASK) & ~(1 << bit), IRQ01_MASK);
+}
+
+static struct irq_chip se7722_irq_chip __read_mostly = {
+	.name           = "SE7722-FPGA",
+	.mask           = disable_se7722_irq,
+	.unmask         = enable_se7722_irq,
+	.mask_ack       = disable_se7722_irq,
+};
+
+static void se7722_irq_demux(unsigned int irq, struct irq_desc *desc)
+{
+	unsigned short intv = ctrl_inw(IRQ01_STS);
+	struct irq_desc *ext_desc;
+	unsigned int ext_irq = SE7722_FPGA_IRQ_BASE;
+
+	intv &= (1 << SE7722_FPGA_IRQ_NR) - 1;
+
+	while (intv) {
+		if (intv & 1) {
+			ext_desc = irq_desc + ext_irq;
+			handle_level_irq(ext_irq, ext_desc);
+		}
+		intv >>= 1;
+		ext_irq++;
+	}
+}
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_se7722_IRQ(void)
+{
+	int i;
+
+	ctrl_outw(0, IRQ01_MASK);       /* disable all irqs */
+	ctrl_outw(0x2000, 0xb03fffec);  /* mrshpc irq enable */
+
+	for (i = 0; i < SE7722_FPGA_IRQ_NR; i++)
+		set_irq_chip_and_handler_name(SE7722_FPGA_IRQ_BASE + i,
+					      &se7722_irq_chip,
+					      handle_level_irq, "level");
+
+	set_irq_chained_handler(IRQ0_IRQ, se7722_irq_demux);
+	set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
+
+	set_irq_chained_handler(IRQ1_IRQ, se7722_irq_demux);
+	set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
+}