1 files changed, 133 insertions, 0 deletions
diff --git a/linux-2.4.x/drivers/mtd/maps/p3p440.c b/linux-2.4.x/drivers/mtd/maps/p3p440.c
new file mode 100644
index 0000000..ea63527
--- /dev/null
+++ b/linux-2.4.x/drivers/mtd/maps/p3p440.c
@@ -0,0 +1,133 @@
+/*
+ * $Id: p3p440.c,v 1.2 2005/11/29 14:34:38 gleixner Exp $
+ *
+ * drivers/mtd/maps/p3p440.c
+ *
+ * Mapping for Prodrive P3P440 flash
+ *
+ * Copyright (c) 2005 DENX Software Engineering
+ * Stefan Roese <sr@denx.de>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/io.h>
+#include <asm/ibm4xx.h>
+#include <asm/ppcboot.h>
+
+extern bd_t __res;
+
+#define RW_PART0_OF	0
+#define RW_PART0_SZ	0x180000
+#define RW_PART1_SZ	0x280000
+/* Partition 2 will be autosized dynamically... */
+#define RW_PART3_SZ	0x40000
+#define RW_PART4_SZ	0x40000
+
+static struct mtd_partition p3p440_flash_partitions[] = {
+	{
+		.name = "kernel",
+		.offset = RW_PART0_OF,
+		.size = RW_PART0_SZ
+	},
+	{
+		.name = "root",
+		.offset = MTDPART_OFS_APPEND,
+		.size = RW_PART1_SZ,
+	},
+	{
+		.name = "user",
+		.offset = MTDPART_OFS_APPEND,
+		/*
+		 * The size of the partition is adjusted at
+		 * runtime depending on the real flash size
+		 */
+	},
+	{
+		.name = "env",
+		.offset = MTDPART_OFS_APPEND,
+		.size = RW_PART3_SZ,
+	},
+	{
+		.name = "u-boot",
+		.offset = MTDPART_OFS_APPEND,
+		.size = RW_PART4_SZ,
+	}
+};
+
+static struct map_info p3p440_flash_map = {
+	.name = "p3p440-flash",
+	.bankwidth = 2,
+};
+
+static struct mtd_info *p3p440_mtd;
+
+static int __init init_p3p440_flash(void)
+{
+	unsigned long long flash_base;
+	unsigned long flash_size;
+	int res;
+
+	flash_base = __res.bi_flashstart | 0x0000000100000000LL;
+	flash_size = __res.bi_flashsize;
+
+	p3p440_flash_map.size = flash_size;
+	p3p440_flash_map.phys = flash_base;
+	p3p440_flash_map.virt = ioremap64(flash_base, p3p440_flash_map.size);
+
+	if (!p3p440_flash_map.virt) {
+		printk(KERN_NOTICE "init_p3p440_flash: failed to ioremap\n");
+		return -EIO;
+	}
+
+	/*
+	 * Adjust partitions to flash size
+	 */
+	p3p440_flash_partitions[2].size = p3p440_flash_map.size -
+		RW_PART0_SZ - RW_PART1_SZ - RW_PART3_SZ - RW_PART4_SZ;
+
+	simple_map_init(&p3p440_flash_map);
+
+	p3p440_mtd = do_map_probe("cfi_probe", &p3p440_flash_map);
+
+	if (p3p440_mtd) {
+		p3p440_mtd->owner = THIS_MODULE;
+		if(!add_mtd_partitions(p3p440_mtd, p3p440_flash_partitions,
+				       ARRAY_SIZE(p3p440_flash_partitions)))
+			return 0;
+
+		map_destroy(p3p440_mtd);
+	}
+
+	iounmap(p3p440_flash_map.virt);
+	return -ENXIO;
+}
+
+static void __exit cleanup_p3p440_flash(void)
+{
+	if (p3p440_mtd) {
+		del_mtd_partitions(p3p440_mtd);
+		map_destroy(p3p440_mtd);
+		iounmap(p3p440_flash_map.virt);
+	}
+}
+
+module_init(init_p3p440_flash);
+module_exit(cleanup_p3p440_flash);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Stefan Roese <sr@denx.de>");
+MODULE_DESCRIPTION("MTD map and partitions for Prodrive P3P440 board");