Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

4 files changed, 200 insertions, 0 deletions

diff --git a/arch/sh/boards/adx/Makefile b/arch/sh/boards/adx/Makefile
new file mode 100644
index 00000000000..5b1c531b399
--- /dev/null
+++ b/arch/sh/boards/adx/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for ADX boards
+#
+
+obj-y	 := setup.o irq.o irq_maskreq.o
+
diff --git a/arch/sh/boards/adx/irq.c b/arch/sh/boards/adx/irq.c
new file mode 100644
index 00000000000..c6ca409dff9
--- /dev/null
+++ b/arch/sh/boards/adx/irq.c
@@ -0,0 +1,31 @@
+/*
+ * linux/arch/sh/boards/adx/irq.c
+ *
+ * Copyright (C) 2001 A&D Co., Ltd.
+ *
+ * I/O routine and setup routines for A&D ADX Board
+ *
+ * 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 <asm/irq.h>
+
+void init_adx_IRQ(void)
+{
+        int i;
+
+/*      printk("init_adx_IRQ()\n");*/
+        /* setup irq_mask_register */
+        irq_mask_register = (unsigned short *)0xa6000008;
+
+        /* cover all external interrupt area by maskreg_irq_type
+         * (Actually, irq15 doesn't exist)
+         */
+        for (i = 0; i < 16; i++) {
+                make_maskreg_irq(i);
+                disable_irq(i);
+        }
+}
diff --git a/arch/sh/boards/adx/irq_maskreg.c b/arch/sh/boards/adx/irq_maskreg.c
new file mode 100644
index 00000000000..ca91bb0f1f5
--- /dev/null
+++ b/arch/sh/boards/adx/irq_maskreg.c
@@ -0,0 +1,107 @@
+/*
+ * linux/arch/sh/kernel/irq_maskreg.c
+ *
+ * Copyright (C) 2001 A&D Co., Ltd. <http://www.aandd.co.jp>
+ *
+ * This file may be copied or modified under the terms of the GNU
+ * General Public License.  See linux/COPYING for more information.
+ *
+ * Interrupt handling for Simple external interrupt mask register
+ *
+ * This is for the machine which have single 16 bit register
+ * for masking external IRQ individually.
+ * Each bit of the register is for masking each interrupt.  
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/machvec.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? */
+unsigned short *irq_mask_register = 0;
+
+/* forward declaration */
+static unsigned int startup_maskreg_irq(unsigned int irq);
+static void shutdown_maskreg_irq(unsigned int irq);
+static void enable_maskreg_irq(unsigned int irq);
+static void disable_maskreg_irq(unsigned int irq);
+static void mask_and_ack_maskreg(unsigned int);
+static void end_maskreg_irq(unsigned int irq);
+
+/* hw_interrupt_type */
+static struct hw_interrupt_type maskreg_irq_type = {
+	" Mask Register",
+	startup_maskreg_irq,
+	shutdown_maskreg_irq,
+	enable_maskreg_irq,
+	disable_maskreg_irq,
+	mask_and_ack_maskreg,
+	end_maskreg_irq
+};
+
+/* actual implementatin */
+static unsigned int startup_maskreg_irq(unsigned int irq)
+{ 
+	enable_maskreg_irq(irq);
+	return 0; /* never anything pending */
+}
+
+static void shutdown_maskreg_irq(unsigned int irq)
+{
+	disable_maskreg_irq(irq);
+}
+
+static void disable_maskreg_irq(unsigned int irq)
+{
+	if (irq_mask_register) {
+		unsigned long flags;
+		unsigned short val, mask = 0x01 << irq;
+
+		/* Set "irq"th bit */
+		local_irq_save(flags);
+		val = ctrl_inw((unsigned long)irq_mask_register);
+		val |= mask;
+		ctrl_outw(val, (unsigned long)irq_mask_register);
+		local_irq_restore(flags);
+	}
+}
+
+static void enable_maskreg_irq(unsigned int irq)
+{
+	if (irq_mask_register) {
+		unsigned long flags;
+		unsigned short val, mask = ~(0x01 << irq);
+
+		/* Clear "irq"th bit */
+		local_irq_save(flags);
+		val = ctrl_inw((unsigned long)irq_mask_register);
+		val &= mask;
+		ctrl_outw(val, (unsigned long)irq_mask_register);
+		local_irq_restore(flags);
+	}
+}
+
+static void mask_and_ack_maskreg(unsigned int irq)
+{
+	disable_maskreg_irq(irq);
+}
+
+static void end_maskreg_irq(unsigned int irq)
+{
+	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+		enable_maskreg_irq(irq);
+}
+
+void make_maskreg_irq(unsigned int irq)
+{
+	disable_irq_nosync(irq);
+	irq_desc[irq].handler = &maskreg_irq_type;
+	disable_maskreg_irq(irq);
+}
diff --git a/arch/sh/boards/adx/setup.c b/arch/sh/boards/adx/setup.c
new file mode 100644
index 00000000000..4938d959234
--- /dev/null
+++ b/arch/sh/boards/adx/setup.c
@@ -0,0 +1,56 @@
+/* 
+ * linux/arch/sh/board/adx/setup.c
+ *
+ * Copyright (C) 2001 A&D Co., Ltd.
+ *
+ * I/O routine and setup routines for A&D ADX Board
+ *
+ * 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 <asm/machvec.h>
+#include <linux/module.h>
+
+extern void init_adx_IRQ(void);
+extern void *cf_io_base;
+
+const char *get_system_type(void)
+{
+	return "A&D ADX";
+}
+
+unsigned long adx_isa_port2addr(unsigned long offset)
+{
+	/* CompactFlash (IDE) */
+	if (((offset >= 0x1f0) && (offset <= 0x1f7)) || (offset == 0x3f6)) {
+		return (unsigned long)cf_io_base + offset;
+	}
+
+	/* eth0 */
+	if ((offset >= 0x300) && (offset <= 0x30f)) {
+		return 0xa5000000 + offset;	/* COMM BOARD (AREA1) */
+	}
+
+	return offset + 0xb0000000; /* IOBUS (AREA 4)*/
+}
+
+/*
+ * The Machine Vector
+ */
+
+struct sh_machine_vector mv_adx __initmv = {
+	.mv_nr_irqs		= 48,
+	.mv_isa_port2addr	= adx_isa_port2addr,
+	.mv_init_irq		= init_adx_IRQ,
+};
+ALIAS_MV(adx)
+
+int __init platform_setup(void)
+{
+	/* Nothing to see here .. */
+	return 0;
+}
+