diff -urN ./lubbock-2.4.19-rmk7-pxa1/drivers/mtd/maps/lubbock.c ./lubbock-2.4.19-rmk7-pxa1-flash/drivers/mtd/maps/lubbock.c
--- ./lubbock-2.4.19-rmk7-pxa1/drivers/mtd/maps/lubbock.c	Mon May 12 02:25:48 2003
+++ ./lubbock-2.4.19-rmk7-pxa1-flash/drivers/mtd/maps/lubbock.c	Thu May 15 14:14:59 2003
@@ -18,7 +18,10 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
-
+#ifdef CONFIG_PM
+#include <linux/pm.h>
+static struct pm_dev *mtd_pm_dev = NULL;
+#endif
 
 #define WINDOW_ADDR 	0
 //#define WINDOW_ADDR 	0x04000000
@@ -101,12 +104,34 @@
 
 extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
 
+#ifdef CONFIG_PM
+static int mtd_pm_callback(struct pm_dev *dev,pm_request_t rqst,void *data)
+{
+   int i;
+
+       if (rqst == PM_RESUME ) {
+       /* Unlock the flash device. */
+       if( mymtd->unlock )  {
+               for (i=0; i<mymtd->numeraseregions;i++) {
+               int j;
+               for(j=0;j<mymtd->eraseregions[i].numblocks;j++) {
+                   mymtd->unlock(mymtd,mymtd->eraseregions[i].offset + j * mymtd->eraseregions[i].erasesize,
+                   mymtd->eraseregions[i].erasesize);
+               }
+           }
+       }
+   }
+   return 0;
+}
+#endif
+
 static int __init init_lubbock(void)
 {
 	struct mtd_partition *parts;
 	int nb_parts = 0;
 	int parsed_nr_parts = 0;
 	char *part_type = "static";
+	int	i=0;
 
 	lubbock_map.buswidth = (BOOT_DEF & 1) ? 2 : 4;
 	printk( "Probing Lubbock flash at physical address 0x%08x (%d-bit buswidth)\n",
@@ -122,6 +147,16 @@
 		return -ENXIO;
 	}
 	mymtd->module = THIS_MODULE;
+   /* Unlock the flash device. */
+   if( mymtd->unlock )  {
+           for (i=0; i<mymtd->numeraseregions;i++) {
+           int j;
+           for(j=0;j<mymtd->eraseregions[i].numblocks;j++) {
+               mymtd->unlock(mymtd,mymtd->eraseregions[i].offset + j * mymtd->eraseregions[i].erasesize,
+                   mymtd->eraseregions[i].erasesize);
+           }
+       }
+   }
 
 #ifdef CONFIG_MTD_REDBOOT_PARTS
 	if (parsed_nr_parts == 0) {
@@ -147,6 +182,12 @@
 	} else {
 		add_mtd_device(mymtd);
 	}
+#ifdef CONFIG_PM
+   mtd_pm_dev = pm_register(PM_SYS_DEV, PM_SYS_UNKNOWN, mtd_pm_callback);
+   if( mtd_pm_dev == NULL )  {
+       printk(KERN_INFO "MTD pm register fialed.\n");
+   }
+#endif
 	return 0;
 }
 
@@ -160,6 +201,10 @@
 	}
 	if (lubbock_map.map_priv_1)
 		iounmap((void *)lubbock_map.map_priv_1);
+#ifdef CONFIG_PM
+   if( mtd_pm_dev )
+       pm_unregister(mtd_pm_dev);
+#endif
 	return 0;
 }