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, 102 insertions, 0 deletions

diff --git a/arch/sh/boards/mach-systemh/irq.c b/arch/sh/boards/mach-systemh/irq.c
new file mode 100644
index 000000000000..0ba2fe674c47
--- /dev/null
+++ b/arch/sh/boards/mach-systemh/irq.c
@@ -0,0 +1,102 @@
+/*
+ * linux/arch/sh/boards/renesas/systemh/irq.c
+ *
+ * Copyright (C) 2000  Kazumoto Kojima
+ *
+ * Hitachi SystemH Support.
+ *
+ * Modified for 7751 SystemH by
+ * Jonathan Short.
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <asm/io.h>
+#include <asm/systemh7751.h>
+#include <asm/smc37c93x.h>
+
+/* address of external interrupt mask register
+ * address must be set prior to use these (maybe in init_XXX_irq())
+ * XXX : is it better to use .config than specifying it in code? */
+static unsigned long *systemh_irq_mask_register = (unsigned long *)0xB3F10004;
+static unsigned long *systemh_irq_request_register = (unsigned long *)0xB3F10000;
+
+/* forward declaration */
+static unsigned int startup_systemh_irq(unsigned int irq);
+static void shutdown_systemh_irq(unsigned int irq);
+static void enable_systemh_irq(unsigned int irq);
+static void disable_systemh_irq(unsigned int irq);
+static void mask_and_ack_systemh(unsigned int);
+static void end_systemh_irq(unsigned int irq);
+
+/* hw_interrupt_type */
+static struct hw_interrupt_type systemh_irq_type = {
+        .typename = " SystemH Register",
+        .startup = startup_systemh_irq,
+        .shutdown = shutdown_systemh_irq,
+        .enable = enable_systemh_irq,
+        .disable = disable_systemh_irq,
+        .ack = mask_and_ack_systemh,
+        .end = end_systemh_irq
+};
+
+static unsigned int startup_systemh_irq(unsigned int irq)
+{
+        enable_systemh_irq(irq);
+        return 0; /* never anything pending */
+}
+
+static void shutdown_systemh_irq(unsigned int irq)
+{
+        disable_systemh_irq(irq);
+}
+
+static void disable_systemh_irq(unsigned int irq)
+{
+        if (systemh_irq_mask_register) {
+                unsigned long val, mask = 0x01 << 1;
+
+                /* Clear the "irq"th bit in the mask and set it in the request */
+                val = ctrl_inl((unsigned long)systemh_irq_mask_register);
+                val &= ~mask;
+                ctrl_outl(val, (unsigned long)systemh_irq_mask_register);
+
+                val = ctrl_inl((unsigned long)systemh_irq_request_register);
+                val |= mask;
+                ctrl_outl(val, (unsigned long)systemh_irq_request_register);
+        }
+}
+
+static void enable_systemh_irq(unsigned int irq)
+{
+        if (systemh_irq_mask_register) {
+                unsigned long val, mask = 0x01 << 1;
+
+                /* Set "irq"th bit in the mask register */
+                val = ctrl_inl((unsigned long)systemh_irq_mask_register);
+                val |= mask;
+                ctrl_outl(val, (unsigned long)systemh_irq_mask_register);
+        }
+}
+
+static void mask_and_ack_systemh(unsigned int irq)
+{
+        disable_systemh_irq(irq);
+}
+
+static void end_systemh_irq(unsigned int irq)
+{
+        if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+                enable_systemh_irq(irq);
+}
+
+void make_systemh_irq(unsigned int irq)
+{
+        disable_irq_nosync(irq);
+        irq_desc[irq].chip = &systemh_irq_type;
+        disable_systemh_irq(irq);
+}
+