X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fmtd%2Fmaps%2Flasat.c;h=2a2efaa424569a324ab8ce6383a8c1937b98a42f;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=36a14d6a441a5e0fbba796b733d43f816268706d;hpb=db216c3d5e4c040e557a50f8f5d35d5c415e8c1c;p=linux-2.6.git

diff --git a/drivers/mtd/maps/lasat.c b/drivers/mtd/maps/lasat.c
index 36a14d6a4..2a2efaa42 100644
--- a/drivers/mtd/maps/lasat.c
+++ b/drivers/mtd/maps/lasat.c
@@ -1,14 +1,13 @@
 /*
- * Flash device on lasat 100 and 200 boards
+ * Flash device on Lasat 100 and 200 boards
  *
- * Presumably (C) 2002 Brian Murphy <brian@murphy.dk> or whoever he
- * works for.
+ * (C) 2002 Brian Murphy <brian@murphy.dk>
  *
  * 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.
  *
- * $Id: lasat.c,v 1.5 2003/05/21 12:45:19 dwmw2 Exp $
+ * $Id: lasat.c,v 1.7 2004/07/12 21:59:44 dwmw2 Exp $
  *
  */
 
@@ -22,44 +21,53 @@
 #include <linux/mtd/partitions.h>
 #include <linux/config.h>
 #include <asm/lasat/lasat.h>
-#include <asm/lasat/lasat_mtd.h>
 
-static struct mtd_info *mymtd;
-
-static struct map_info sp_map = {
-	.name = "SP flash",
-	.buswidth = 4,
-};
+static struct mtd_info *lasat_mtd;
 
 static struct mtd_partition partition_info[LASAT_MTD_LAST];
 static char *lasat_mtd_partnames[] = {"Bootloader", "Service", "Normal", "Filesystem", "Config"};
 
-static int __init init_sp(void)
+static void lasat_set_vpp(struct map_info *map, int vpp)
 {
-	int i;
-	/* this does not play well with the old flash code which 
-	 * protects and uprotects the flash when necessary */
-	/* FIXME: Implement set_vpp() */
-       	printk(KERN_NOTICE "Unprotecting flash\n");
-	*lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit;
+	if (vpp)
+	    *lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit;
+	else
+	    *lasat_misc->flash_wp_reg &= ~(1 << lasat_misc->flash_wp_bit);
+}
+
+static struct map_info lasat_map = {
+	.name = "LASAT flash",
+	.bankwidth = 4,
+	.set_vpp = lasat_set_vpp
+};
 
-	sp_map.virt = lasat_flash_partition_start(LASAT_MTD_BOOTLOADER);
-	sp_map.phys = virt_to_phys(sp_map.virt);
-	sp_map.size = lasat_board_info.li_flash_size;
+static int __init init_lasat(void)
+{
+	int i;
+	/* since we use AMD chips and set_vpp is not implimented
+	 * for these (yet) we still have to permanently enable flash write */
+	printk(KERN_NOTICE "Unprotecting flash\n");
+	ENABLE_VPP((&lasat_map));
 
-	simple_map_init(&sp_map);
+	lasat_map.phys = lasat_flash_partition_start(LASAT_MTD_BOOTLOADER);
+	lasat_map.virt = (unsigned long)ioremap_nocache(
+		        lasat_map.phys, lasat_board_info.li_flash_size);
+	lasat_map.size = lasat_board_info.li_flash_size;
 
-       	printk(KERN_NOTICE "sp flash device: %lx at %lx\n", 
-			sp_map.size, sp_map.phys);
+	simple_map_init(&lasat_map);
 
 	for (i=0; i < LASAT_MTD_LAST; i++)
 		partition_info[i].name = lasat_mtd_partnames[i];
 
-	mymtd = do_map_probe("cfi_probe", &sp_map);
-	if (mymtd) {
+	lasat_mtd = do_map_probe("cfi_probe", &lasat_map);
+
+	if (!lasat_mtd)
+	    lasat_mtd = do_map_probe("jedec_probe", &lasat_map);
+
+	if (lasat_mtd) {
 		u32 size, offset = 0;
 
-		mymtd->owner = THIS_MODULE;
+		lasat_mtd->owner = THIS_MODULE;
 
 		for (i=0; i < LASAT_MTD_LAST; i++) {
 			size = lasat_flash_partition_size(i);
@@ -68,26 +76,26 @@ static int __init init_sp(void)
 			offset += size;
 		}
 
-		add_mtd_partitions( mymtd, partition_info, LASAT_MTD_LAST );
+		add_mtd_partitions( lasat_mtd, partition_info, LASAT_MTD_LAST );
 		return 0;
 	}
 
 	return -ENXIO;
 }
 
-static void __exit cleanup_sp(void)
+static void __exit cleanup_lasat(void)
 {
-	if (mymtd) {
-		del_mtd_partitions(mymtd);
-		map_destroy(mymtd);
+	if (lasat_mtd) {
+		del_mtd_partitions(lasat_mtd);
+		map_destroy(lasat_mtd);
 	}
-	if (sp_map.virt) {
-		sp_map.virt = 0;
+	if (lasat_map.virt) {
+		lasat_map.virt = 0;
 	}
 }
 
-module_init(init_sp);
-module_exit(cleanup_sp);
+module_init(init_lasat);
+module_exit(cleanup_lasat);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Brian Murphy <brian@murphy.dk>");