X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fmtd%2Fmaps%2Fixp4xx.c;h=56b3a355bf7b83f934a77eeca368b2cdfa25d96c;hb=b3ce1debe2685383a9ad6ace9c49869c3968c013;hp=3fcc3288407437792479c456574ac09c50ee716e;hpb=bb77c03cf40fec911c4ce9610b8207bf0050a5fd;p=linux-2.6

diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 3fcc328840..56b3a355bf 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -1,5 +1,5 @@
 /*
- * $Id: ixp4xx.c,v 1.7 2004/11/04 13:24:15 gleixner Exp $
+ * $Id: ixp4xx.c,v 1.12 2005/11/07 11:14:27 gleixner Exp $
  *
  * drivers/mtd/maps/ixp4xx.c
  *
@@ -20,11 +20,15 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
+
 #include <asm/io.h>
 #include <asm/mach/flash.h>
 
@@ -41,7 +45,7 @@
 static map_word ixp4xx_read16(struct map_info *map, unsigned long ofs)
 {
 	map_word val;
-	val.x[0] = *(__u16 *) (map->map_priv_1 + ofs);
+	val.x[0] = le16_to_cpu(readw(map->virt + ofs));
 	return val;
 }
 
@@ -55,35 +59,35 @@ static void ixp4xx_copy_from(struct map_info *map, void *to,
 {
 	int i;
 	u8 *dest = (u8 *) to;
-	u16 *src = (u16 *) (map->map_priv_1 + from);
+	void __iomem *src = map->virt + from;
 	u16 data;
 
 	for (i = 0; i < (len / 2); i++) {
-		data = src[i];
+		data = le16_to_cpu(readw(src + 2*i));
 		dest[i * 2] = BYTE0(data);
 		dest[i * 2 + 1] = BYTE1(data);
 	}
 
 	if (len & 1)
-		dest[len - 1] = BYTE0(src[i]);
+		dest[len - 1] = BYTE0(le16_to_cpu(readw(src + 2*i)));
 }
 
-/* 
+/*
  * Unaligned writes are ignored, causing the 8-bit
  * probe to fail and proceed to the 16-bit probe (which succeeds).
  */
 static void ixp4xx_probe_write16(struct map_info *map, map_word d, unsigned long adr)
 {
 	if (!(adr & 1))
-	       *(__u16 *) (map->map_priv_1 + adr) = d.x[0];
+		writew(cpu_to_le16(d.x[0]), map->virt + adr);
 }
 
-/* 
+/*
  * Fast write16 function without the probing check above
  */
 static void ixp4xx_write16(struct map_info *map, map_word d, unsigned long adr)
 {
-       *(__u16 *) (map->map_priv_1 + adr) = d.x[0];
+	writew(cpu_to_le16(d.x[0]), map->virt + adr);
 }
 
 struct ixp4xx_flash_info {
@@ -100,28 +104,20 @@ static int ixp4xx_flash_remove(struct device *_dev)
 	struct platform_device *dev = to_platform_device(_dev);
 	struct flash_platform_data *plat = dev->dev.platform_data;
 	struct ixp4xx_flash_info *info = dev_get_drvdata(&dev->dev);
-	map_word d;
 
 	dev_set_drvdata(&dev->dev, NULL);
 
 	if(!info)
 		return 0;
 
-	/*
-	 * This is required for a soft reboot to work.
-	 */
-	d.x[0] = 0xff;
-	ixp4xx_write16(&info->map, d, 0x55 * 0x2);
-
 	if (info->mtd) {
 		del_mtd_partitions(info->mtd);
 		map_destroy(info->mtd);
 	}
-	if (info->map.map_priv_1)
-		iounmap((void *) info->map.map_priv_1);
+	if (info->map.virt)
+		iounmap(info->map.virt);
 
-	if (info->partitions)
-		kfree(info->partitions);
+	kfree(info->partitions);
 
 	if (info->res) {
 		release_resource(info->res);
@@ -131,9 +127,6 @@ static int ixp4xx_flash_remove(struct device *_dev)
 	if (plat->exit)
 		plat->exit();
 
-	/* Disable flash write */
-	*IXP4XX_EXP_CS0 &= ~IXP4XX_FLASH_WRITABLE;
-
 	return 0;
 }
 
@@ -157,17 +150,11 @@ static int ixp4xx_flash_probe(struct device *_dev)
 	if(!info) {
 		err = -ENOMEM;
 		goto Error;
-	}	
+	}
 	memzero(info, sizeof(struct ixp4xx_flash_info));
 
 	dev_set_drvdata(&dev->dev, info);
 
-	/* 
-	 * Enable flash write 
-	 * TODO: Move this out to board specific code
-	 */
-	*IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
-
 	/*
 	 * Tell the MTD layer we're not 1:1 mapped so that it does
 	 * not attempt to do a direct access on us.
@@ -186,8 +173,8 @@ static int ixp4xx_flash_probe(struct device *_dev)
 	info->map.write = ixp4xx_probe_write16,
 	info->map.copy_from = ixp4xx_copy_from,
 
-	info->res = request_mem_region(dev->resource->start, 
-			dev->resource->end - dev->resource->start + 1, 
+	info->res = request_mem_region(dev->resource->start,
+			dev->resource->end - dev->resource->start + 1,
 			"IXP4XXFlash");
 	if (!info->res) {
 		printk(KERN_ERR "IXP4XXFlash: Could not reserve memory region\n");
@@ -195,9 +182,9 @@ static int ixp4xx_flash_probe(struct device *_dev)
 		goto Error;
 	}
 
-	info->map.map_priv_1 = ioremap(dev->resource->start,
-			    dev->resource->end - dev->resource->start + 1);
-	if (!info->map.map_priv_1) {
+	info->map.virt = ioremap(dev->resource->start,
+				 dev->resource->end - dev->resource->start + 1);
+	if (!info->map.virt) {
 		printk(KERN_ERR "IXP4XXFlash: Failed to ioremap region\n");
 		err = -EIO;
 		goto Error;
@@ -210,7 +197,7 @@ static int ixp4xx_flash_probe(struct device *_dev)
 		goto Error;
 	}
 	info->mtd->owner = THIS_MODULE;
-	
+
 	/* Use the fast version */
 	info->map.write = ixp4xx_write16,
 
@@ -255,4 +242,3 @@ module_exit(ixp4xx_flash_exit);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MTD map driver for Intel IXP4xx systems");
 MODULE_AUTHOR("Deepak Saxena");
-