patch-2.4.25 linux-2.4.25/drivers/ide/ppc/cpci405ide.c

• Lines: 73
• Date: 2004-02-18 05:36:31.000000000 -0800
• Orig file: linux-2.4.24/drivers/ide/ppc/cpci405ide.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.24/drivers/ide/ppc/cpci405ide.c linux-2.4.25/drivers/ide/ppc/cpci405ide.c
@@ -0,0 +1,72 @@
+/*
+ *  linux/drivers/ide/ppc/cpci405ide.c -- CPCI405 IDE Driver
+ *
+ *  Copyright (C) 2001-2003 Stefan Roese, stefan.roese@esd-electronics.de
+ *
+ *  This driver was written based on information obtained from the MacOS IDE
+ *  driver binary by Mikael Forselius
+ *
+ *  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/types.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+
+
+/*
+ *  Base of the IDE interface
+ */
+
+#define CPCI405_HD_BASE	0xf0100000
+
+/*
+ *  Offsets from the above base (scaling 4)
+ */
+
+#define CPCI405_HD_DATA	        0x00
+#define CPCI405_HD_ERROR	0x01		/* see err-bits */
+#define CPCI405_HD_NSECTOR	0x02		/* nr of sectors to read/write */
+#define CPCI405_HD_SECTOR	0x03		/* starting sector */
+#define CPCI405_HD_LCYL	        0x04		/* starting cylinder */
+#define CPCI405_HD_HCYL	        0x05		/* high byte of starting cyl */
+#define CPCI405_HD_SELECT	0x06		/* 101dhhhh , d=drive, hhhh=head */
+#define CPCI405_HD_STATUS	0x07		/* see status-bits */
+#define CPCI405_HD_CONTROL	0x0e		/* control/altstatus */
+
+#define CPCI405_IRQ_IDE         0x1f
+
+static int cpci405ide_offsets[IDE_NR_PORTS] __initdata = {
+	CPCI405_HD_DATA, CPCI405_HD_ERROR, CPCI405_HD_NSECTOR, CPCI405_HD_SECTOR,
+	CPCI405_HD_LCYL, CPCI405_HD_HCYL, CPCI405_HD_SELECT, CPCI405_HD_STATUS,
+	CPCI405_HD_CONTROL
+};
+
+static void *cpci405_ide_base_mapped;
+
+
+/*
+ *  Probe for a CPCI405 IDE interface
+ */
+
+void __init cpci405ide_init(void)
+{
+	hw_regs_t hw;
+	int index = -1;
+
+	cpci405_ide_base_mapped =
+		ioremap((unsigned long) CPCI405_HD_BASE, 0x200) - _IO_BASE;
+        ide_setup_ports(&hw, (ide_ioreg_t)cpci405_ide_base_mapped,
+                        cpci405ide_offsets, 0, 0, NULL, CPCI405_IRQ_IDE);
+        index = ide_register_hw(&hw, NULL);
+        if (index != -1)
+		printk("ide%d: CPCI405 IDE interface\n", index);
+
+}