[MTD] maps: Add mapping driver for PQ2FADS boards.

From: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 88 insertions, 0 deletions

diff --git a/drivers/mtd/maps/pq2fads.c b/drivers/mtd/maps/pq2fads.c
new file mode 100644
index 0000000..e959076
--- /dev/null
+++ b/drivers/mtd/maps/pq2fads.c
@@ -0,0 +1,88 @@
+/*
+ * drivers/mtd/maps/pq2fads.c
+ *
+ * Mapping for the flash SIMM on 8272ADS and PQ2FADS board
+ *
+ * Author: Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <asm/ppcboot.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+/*
+  NOTE: bank width and interleave relative to the installed flash 
+  should have been chosen within MTD_CFI_GEOMETRY options.
+  */
+#define PQ2FADS_BANK_WIDTH 4
+
+static struct mtd_partition pq2fads_partitions[] = {
+	{
+#ifdef CONFIG_ADS8272
+		.name		= "HRCW",
+		.size		= 0x40000,
+		.offset 	= 0,
+		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
+	}, { 
+		.name		= "User FS",
+		.size		= 0x5c0000,
+		.offset 	= 0x40000,
+#else
+		.name		= "User FS",
+		.size		= 0x600000,
+		.offset 	= 0,
+#endif
+	}, {    
+		.name		= "uImage",
+		.size		= 0x100000,
+		.offset 	= 0x600000,
+		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
+	}, {    
+		.name		= "bootloader",
+		.size		= 0x40000,
+		.offset		= 0x700000,
+		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
+	}, {    
+		.name		= "bootloader env",
+		.size		= 0x40000,
+		.offset		= 0x740000,
+		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
+	}
+};
+
+
+/* pointer to MPC885ADS board info data */
+extern unsigned char __res[];
+
+static int __init init_pq2fads_mtd(void)
+{
+	bd_t *bd = (bd_t *)__res;
+	physmap_configure(bd->bi_flashstart, bd->bi_flashsize, PQ2FADS_BANK_WIDTH, NULL);
+
+	physmap_set_partitions(pq2fads_partitions,
+				sizeof (pq2fads_partitions) /
+				sizeof (pq2fads_partitions[0]));
+	return 0;
+}
+
+static void __exit cleanup_pq2fads_mtd(void)
+{
+}
+                                                                                                                                                    
+module_init(init_pq2fads_mtd);
+module_exit(cleanup_pq2fads_mtd);
+                                                                                                                                                    
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("MTD map and partitions for MPC8272ADS boards");