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/impa7.c | 161 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 drivers/mtd/maps/impa7.c

(limited to 'drivers/mtd/maps/impa7.c')

diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c
new file mode 100644
index 00000000000..cb39172c81d
--- /dev/null
+++ b/drivers/mtd/maps/impa7.c
@@ -0,0 +1,161 @@
+/*
+ * $Id: impa7.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $
+ *
+ * Handle mapping of the NOR flash on implementa A7 boards
+ *
+ * Copyright 2002 SYSGO Real-Time Solutions GmbH
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#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/config.h>
+
+#ifdef CONFIG_MTD_PARTITIONS
+#include <linux/mtd/partitions.h>
+#endif
+
+#define WINDOW_ADDR0 0x00000000      /* physical properties of flash */
+#define WINDOW_SIZE0 0x00800000
+#define WINDOW_ADDR1 0x10000000      /* physical properties of flash */
+#define WINDOW_SIZE1 0x00800000
+#define NUM_FLASHBANKS 2
+#define BUSWIDTH     4
+
+/* can be { "cfi_probe", "jedec_probe", "map_rom", NULL } */
+#define PROBETYPES { "jedec_probe", NULL }
+
+#define MSG_PREFIX "impA7:"   /* prefix for our printk()'s */
+#define MTDID      "impa7-%d"  /* for mtdparts= partitioning */
+
+static struct mtd_info *impa7_mtd[NUM_FLASHBANKS];
+
+
+static struct map_info impa7_map[NUM_FLASHBANKS] = {
+	{
+		.name = "impA7 NOR Flash Bank #0",
+		.size = WINDOW_SIZE0,
+		.bankwidth = BUSWIDTH,
+	},
+	{
+		.name = "impA7 NOR Flash Bank #1",
+		.size = WINDOW_SIZE1,
+		.bankwidth = BUSWIDTH,
+	},
+};
+
+#ifdef CONFIG_MTD_PARTITIONS
+
+/*
+ * MTD partitioning stuff 
+ */
+static struct mtd_partition static_partitions[] =
+{
+	{
+		.name = "FileSystem",
+		.size = 0x800000,
+		.offset = 0x00000000
+	},
+};
+
+static int mtd_parts_nb[NUM_FLASHBANKS];
+static struct mtd_partition *mtd_parts[NUM_FLASHBANKS];
+
+#endif
+
+static const char *probes[] = { "cmdlinepart", NULL };
+
+int __init init_impa7(void)
+{
+	static const char *rom_probe_types[] = PROBETYPES;
+	const char **type;
+	const char *part_type = 0;
+	int i;
+	static struct { u_long addr; u_long size; } pt[NUM_FLASHBANKS] = {
+	  { WINDOW_ADDR0, WINDOW_SIZE0 },
+	  { WINDOW_ADDR1, WINDOW_SIZE1 },
+        };
+	int devicesfound = 0;
+
+	for(i=0; i<NUM_FLASHBANKS; i++)
+	{
+		printk(KERN_NOTICE MSG_PREFIX "probing 0x%08lx at 0x%08lx\n",
+		       pt[i].size, pt[i].addr);
+
+		impa7_map[i].phys = pt[i].addr;
+		impa7_map[i].virt = ioremap(pt[i].addr, pt[i].size);
+		if (!impa7_map[i].virt) {
+			printk(MSG_PREFIX "failed to ioremap\n");
+			return -EIO;
+		}
+		simple_map_init(&impa7_map[i]);
+
+		impa7_mtd[i] = 0;
+		type = rom_probe_types;
+		for(; !impa7_mtd[i] && *type; type++) {
+			impa7_mtd[i] = do_map_probe(*type, &impa7_map[i]);
+		}
+
+		if (impa7_mtd[i]) {
+			impa7_mtd[i]->owner = THIS_MODULE;
+			devicesfound++;
+#ifdef CONFIG_MTD_PARTITIONS
+			mtd_parts_nb[i] = parse_mtd_partitions(impa7_mtd[i], 
+							       probes,
+							       &mtd_parts[i], 
+							       0);
+			if (mtd_parts_nb[i] > 0) {
+				part_type = "command line";
+			} else {
+				mtd_parts[i] = static_partitions;
+				mtd_parts_nb[i] = ARRAY_SIZE(static_partitions);
+				part_type = "static";
+			}
+
+			printk(KERN_NOTICE MSG_PREFIX
+			       "using %s partition definition\n", 
+			       part_type);
+			add_mtd_partitions(impa7_mtd[i], 
+					   mtd_parts[i], mtd_parts_nb[i]);
+#else
+			add_mtd_device(impa7_mtd[i]);
+
+#endif
+		}
+		else 
+			iounmap((void *)impa7_map[i].virt);
+	}
+	return devicesfound == 0 ? -ENXIO : 0;
+}
+
+static void __exit cleanup_impa7(void)
+{
+	int i;
+	for (i=0; i<NUM_FLASHBANKS; i++) {
+		if (impa7_mtd[i]) {
+#ifdef CONFIG_MTD_PARTITIONS
+			del_mtd_partitions(impa7_mtd[i]);
+#else
+			del_mtd_device(impa7_mtd[i]);
+#endif
+			map_destroy(impa7_mtd[i]);
+			iounmap((void *)impa7_map[i].virt);
+			impa7_map[i].virt = 0;
+		}
+	}
+}
+
+module_init(init_impa7);
+module_exit(cleanup_impa7);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pavel Bartusek <pba@sysgo.de>");
+MODULE_DESCRIPTION("MTD map driver for implementa impA7");
-- 
cgit