1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/mtd/maps/dbox2-flash.c b/drivers/mtd/maps/dbox2-flash.c
new file mode 100644
index 0000000..d850a27
--- /dev/null
+++ b/drivers/mtd/maps/dbox2-flash.c
@@ -0,0 +1,126 @@
+/*
+ * $Id: dbox2-flash.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $
+ *
+ * D-Box 2 flash driver
+ */
+
+#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>
+#include <linux/config.h>
+#include <linux/errno.h>
+
+/* partition_info gives details on the logical partitions that the split the
+ * single flash device into. If the size if zero we use up to the end of the
+ * device. */
+static struct mtd_partition partition_info[]= {
+	{
+	.name		= "BR bootloader",
+	.size		= 128 * 1024, 
+	.offset		= 0,                  
+	.mask_flags	= MTD_WRITEABLE
+	},
+	{
+	.name		= "FLFS (U-Boot)",
+	.size		= 128 * 1024, 
+	.offset		= MTDPART_OFS_APPEND, 
+	.mask_flags	= 0
+	},
+	{
+	.name		= "Root (SquashFS)",	
+	.size		= 7040 * 1024, 
+	.offset		= MTDPART_OFS_APPEND, 
+	.mask_flags	= 0
+	},
+	{
+	.name		= "var (JFFS2)",
+	.size		= 896 * 1024, 
+	.offset		= MTDPART_OFS_APPEND, 
+	.mask_flags	= 0
+	},
+	{
+	.name		= "Flash without bootloader",	
+	.size		= MTDPART_SIZ_FULL, 
+	.offset		= 128 * 1024, 
+	.mask_flags	= 0
+	},
+	{
+	.name		= "Complete Flash",	
+	.size		= MTDPART_SIZ_FULL, 
+	.offset		= 0, 
+	.mask_flags	= MTD_WRITEABLE
+	}
+};
+
+#define NUM_PARTITIONS (sizeof(partition_info) / sizeof(partition_info[0]))
+
+#define WINDOW_ADDR 0x10000000
+#define WINDOW_SIZE 0x800000
+
+static struct mtd_info *mymtd;
+
+
+struct map_info dbox2_flash_map = {
+	.name		= "D-Box 2 flash memory",
+	.size		= WINDOW_SIZE,
+	.bankwidth	= 4,
+	.phys		= WINDOW_ADDR,
+};
+
+int __init init_dbox2_flash(void)
+{
+       	printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR);
+	dbox2_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
+
+	if (!dbox2_flash_map.virt) {
+		printk("Failed to ioremap\n");
+		return -EIO;
+	}
+	simple_map_init(&dbox2_flash_map);
+
+	// Probe for dual Intel 28F320 or dual AMD
+	mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
+	if (!mymtd) {
+	    // Probe for single Intel 28F640
+	    dbox2_flash_map.bankwidth = 2;
+	
+	    mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
+	}
+	    
+	if (mymtd) {
+		mymtd->owner = THIS_MODULE;
+
+                /* Create MTD devices for each partition. */
+	        add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS);
+		
+		return 0;
+	}
+
+	iounmap((void *)dbox2_flash_map.virt);
+	return -ENXIO;
+}
+
+static void __exit cleanup_dbox2_flash(void)
+{
+	if (mymtd) {
+		del_mtd_partitions(mymtd);
+		map_destroy(mymtd);
+	}
+	if (dbox2_flash_map.virt) {
+		iounmap((void *)dbox2_flash_map.virt);
+		dbox2_flash_map.virt = 0;
+	}
+}
+
+module_init(init_dbox2_flash);
+module_exit(cleanup_dbox2_flash);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>");
+MODULE_DESCRIPTION("MTD map driver for D-Box 2 board");