From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: 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!
---
 drivers/mtd/maps/fortunet.c | 271 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 271 insertions(+)
 create mode 100644 drivers/mtd/maps/fortunet.c

(limited to 'drivers/mtd/maps/fortunet.c')

diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c
new file mode 100644
index 00000000000..068bb6a5452
--- /dev/null
+++ b/drivers/mtd/maps/fortunet.c
@@ -0,0 +1,271 @@
+/* fortunet.c memory map
+ *
+ * $Id: fortunet.c,v 1.9 2004/11/04 13:24:14 gleixner Exp $
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#define MAX_NUM_REGIONS		4
+#define MAX_NUM_PARTITIONS	8
+
+#define DEF_WINDOW_ADDR_PHY	0x00000000
+#define DEF_WINDOW_SIZE		0x00800000		// 8 Mega Bytes
+
+#define MTD_FORTUNET_PK		"MTD FortuNet: "
+
+#define MAX_NAME_SIZE		128
+
+struct map_region
+{
+	int			window_addr_physical;
+	int			altbankwidth;
+	struct map_info		map_info;
+	struct mtd_info		*mymtd;
+	struct mtd_partition	parts[MAX_NUM_PARTITIONS];
+	char			map_name[MAX_NAME_SIZE];
+	char			parts_name[MAX_NUM_PARTITIONS][MAX_NAME_SIZE];
+};
+
+static struct map_region	map_regions[MAX_NUM_REGIONS];
+static int			map_regions_set[MAX_NUM_REGIONS] = {0,0,0,0};
+static int			map_regions_parts[MAX_NUM_REGIONS] = {0,0,0,0};
+
+
+
+struct map_info default_map = {
+	.size = DEF_WINDOW_SIZE,
+	.bankwidth = 4,
+};
+
+static char * __init get_string_option(char *dest,int dest_size,char *sor)
+{
+	if(!dest_size)
+		return sor;
+	dest_size--;
+	while(*sor)
+	{
+		if(*sor==',')
+		{
+			sor++;
+			break;
+		}
+		else if(*sor=='\"')
+		{
+			sor++;
+			while(*sor)
+			{
+				if(*sor=='\"')
+				{
+					sor++;
+					break;
+				}
+				*dest = *sor;
+				dest++;
+				sor++;
+				dest_size--;
+				if(!dest_size)
+				{
+					*dest = 0;
+					return sor;
+				}
+			}
+		}
+		else
+		{
+			*dest = *sor;
+			dest++;
+			sor++;
+			dest_size--;
+			if(!dest_size)
+			{
+				*dest = 0;
+				return sor;
+			}
+		}
+	}
+	*dest = 0;
+	return sor;
+}
+
+static int __init MTD_New_Region(char *line)
+{
+	char	string[MAX_NAME_SIZE];
+	int	params[6];
+	get_options (get_string_option(string,sizeof(string),line),6,params);
+	if(params[0]<1)
+	{
+		printk(MTD_FORTUNET_PK "Bad parameters for MTD Region "
+			" name,region-number[,base,size,bankwidth,altbankwidth]\n");
+		return 1;
+	}
+	if((params[1]<0)||(params[1]>=MAX_NUM_REGIONS))
+	{
+		printk(MTD_FORTUNET_PK "Bad region index of %d only have 0..%u regions\n",
+			params[1],MAX_NUM_REGIONS-1);
+		return 1;
+	}
+	memset(&map_regions[params[1]],0,sizeof(map_regions[params[1]]));
+	memcpy(&map_regions[params[1]].map_info,
+		&default_map,sizeof(map_regions[params[1]].map_info));
+        map_regions_set[params[1]] = 1;
+        map_regions[params[1]].window_addr_physical = DEF_WINDOW_ADDR_PHY;
+        map_regions[params[1]].altbankwidth = 2;
+        map_regions[params[1]].mymtd = NULL;
+	map_regions[params[1]].map_info.name = map_regions[params[1]].map_name;
+	strcpy(map_regions[params[1]].map_info.name,string);
+	if(params[0]>1)
+	{
+		map_regions[params[1]].window_addr_physical = params[2];
+	}
+	if(params[0]>2)
+	{
+		map_regions[params[1]].map_info.size = params[3];
+	}
+	if(params[0]>3)
+	{
+		map_regions[params[1]].map_info.bankwidth = params[4];
+	}
+	if(params[0]>4)
+	{
+		map_regions[params[1]].altbankwidth = params[5];
+	}
+	return 1;
+}
+
+static int __init MTD_New_Partition(char *line)
+{
+	char	string[MAX_NAME_SIZE];
+	int	params[4];
+	get_options (get_string_option(string,sizeof(string),line),4,params);
+	if(params[0]<3)
+	{
+		printk(MTD_FORTUNET_PK "Bad parameters for MTD Partition "
+			" name,region-number,size,offset\n");
+		return 1;
+	}
+	if((params[1]<0)||(params[1]>=MAX_NUM_REGIONS))
+	{
+		printk(MTD_FORTUNET_PK "Bad region index of %d only have 0..%u regions\n",
+			params[1],MAX_NUM_REGIONS-1);
+		return 1;
+	}
+	if(map_regions_parts[params[1]]>=MAX_NUM_PARTITIONS)
+	{
+		printk(MTD_FORTUNET_PK "Out of space for partition in this region\n");
+		return 1;
+	}
+	map_regions[params[1]].parts[map_regions_parts[params[1]]].name =
+		map_regions[params[1]].	parts_name[map_regions_parts[params[1]]];
+	strcpy(map_regions[params[1]].parts[map_regions_parts[params[1]]].name,string);
+	map_regions[params[1]].parts[map_regions_parts[params[1]]].size =
+		params[2];
+	map_regions[params[1]].parts[map_regions_parts[params[1]]].offset =
+		params[3];
+	map_regions[params[1]].parts[map_regions_parts[params[1]]].mask_flags = 0;
+	map_regions_parts[params[1]]++;
+	return 1;
+}
+
+__setup("MTD_Region=", MTD_New_Region);
+__setup("MTD_Partition=", MTD_New_Partition);
+
+/* Backwards-spelling-compatibility */
+__setup("MTD_Partion=", MTD_New_Partition);
+
+int __init init_fortunet(void)
+{
+	int	ix,iy;
+	for(iy=ix=0;ix<MAX_NUM_REGIONS;ix++)
+	{
+		if(map_regions_parts[ix]&&(!map_regions_set[ix]))
+		{
+			printk(MTD_FORTUNET_PK "Region %d is not setup (Setting to default)\n",
+				ix);
+			memset(&map_regions[ix],0,sizeof(map_regions[ix]));
+			memcpy(&map_regions[ix].map_info,&default_map,
+				sizeof(map_regions[ix].map_info));
+			map_regions_set[ix] = 1;
+			map_regions[ix].window_addr_physical = DEF_WINDOW_ADDR_PHY;
+			map_regions[ix].altbankwidth = 2;
+			map_regions[ix].mymtd = NULL;
+			map_regions[ix].map_info.name = map_regions[ix].map_name;
+			strcpy(map_regions[ix].map_info.name,"FORTUNET");
+		}
+		if(map_regions_set[ix])
+		{
+			iy++;
+			printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash device at physically "
+				" address %x size %x\n",
+				map_regions[ix].map_info.name,
+				map_regions[ix].window_addr_physical,
+				map_regions[ix].map_info.size);
+
+			map_regions[ix].map_info.phys =	map_regions[ix].window_addr_physical,
+
+			map_regions[ix].map_info.virt = 
+				ioremap_nocache(
+				map_regions[ix].window_addr_physical,
+				map_regions[ix].map_info.size);
+			if(!map_regions[ix].map_info.virt)
+			{
+				printk(MTD_FORTUNET_PK "%s flash failed to ioremap!\n",
+					map_regions[ix].map_info.name);
+				return -ENXIO;
+			}
+			simple_map_init(&map_regions[ix].map_info);
+
+			printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash is virtually at: %x\n",
+				map_regions[ix].map_info.name,
+				map_regions[ix].map_info.virt);
+			map_regions[ix].mymtd = do_map_probe("cfi_probe",
+				&map_regions[ix].map_info);
+			if((!map_regions[ix].mymtd)&&(
+				map_regions[ix].altbankwidth!=map_regions[ix].map_info.bankwidth))
+			{
+				printk(KERN_NOTICE MTD_FORTUNET_PK "Trying alternate bankwidth "
+					"for %s flash.\n",
+					map_regions[ix].map_info.name);
+				map_regions[ix].map_info.bankwidth =
+					map_regions[ix].altbankwidth;
+				map_regions[ix].mymtd = do_map_probe("cfi_probe",
+					&map_regions[ix].map_info);
+			}
+			map_regions[ix].mymtd->owner = THIS_MODULE;
+			add_mtd_partitions(map_regions[ix].mymtd,
+				map_regions[ix].parts,map_regions_parts[ix]);
+		}
+	}
+	if(iy)
+		return 0;
+	return -ENXIO;
+}
+
+static void __exit cleanup_fortunet(void)
+{
+	int	ix;
+	for(ix=0;ix<MAX_NUM_REGIONS;ix++)
+	{
+		if(map_regions_set[ix])
+		{
+			if( map_regions[ix].mymtd )
+			{
+				del_mtd_partitions( map_regions[ix].mymtd );
+				map_destroy( map_regions[ix].mymtd );
+			}
+			iounmap((void *)map_regions[ix].map_info.virt);
+		}
+	}
+}
+
+module_init(init_fortunet);
+module_exit(cleanup_fortunet);
+
+MODULE_AUTHOR("FortuNet, Inc.");
+MODULE_DESCRIPTION("MTD map driver for FortuNet boards");
-- 
cgit v1.2.3