Merge branch 'master'

7 files changed, 74 insertions, 26 deletions

diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 846a533323a..452ccd5037c 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -538,12 +538,6 @@ config MTD_MPC1211
 	  This enables access to the flash chips on the Interface MPC-1211(CTP/PCI/MPC-SH02).
 	  If you have such a board, say 'Y'.
 
-config MTD_PQ2FADS
-	tristate "JEDEC flash SIMM mapped on PQ2FADS and 8272ADS boards"
-	depends on (ADS8272 || PQ2FADS) && MTD_PARTITIONS && MTD_JEDECPROBE && MTD_PHYSMAP && MTD_CFI_GEOMETRY && MTD_CFI_INTELEXT
-	help
-	 This enables access to flash SIMM on PQ2FADS-like boards
-
 config MTD_OMAP_NOR
 	tristate "TI OMAP board mappings"
 	depends on MTD_CFI && ARCH_OMAP
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 7d9e940a1dc..2f7e254912f 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -70,6 +70,5 @@ obj-$(CONFIG_MTD_DMV182)	+= dmv182.o
 obj-$(CONFIG_MTD_SHARP_SL)	+= sharpsl-flash.o
 obj-$(CONFIG_MTD_PLATRAM)	+= plat-ram.o
 obj-$(CONFIG_MTD_OMAP_NOR)	+= omap_nor.o
-obj-$(CONFIG_MTD_PQ2FADS)	+= pq2fads.o
 obj-$(CONFIG_MTD_MTX1)		+= mtx-1_flash.o
 obj-$(CONFIG_MTD_TQM834x)	+= tqm834x.o
diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index a59f8027903..986c5862839 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -1,5 +1,5 @@
 /*
- * $Id: ixp4xx.c,v 1.12 2005/11/07 11:14:27 gleixner Exp $
+ * $Id: ixp4xx.c,v 1.13 2005/11/16 16:23:21 dvrabel Exp $
  *
  * drivers/mtd/maps/ixp4xx.c
  *
@@ -34,10 +34,55 @@
 
 #include <linux/reboot.h>
 
+/*
+ * Read/write a 16 bit word from flash address 'addr'.
+ *
+ * When the cpu is in little-endian mode it swizzles the address lines
+ * ('address coherency') so we need to undo the swizzling to ensure commands
+ * and the like end up on the correct flash address.
+ *
+ * To further complicate matters, due to the way the expansion bus controller
+ * handles 32 bit reads, the byte stream ABCD is stored on the flash as:
+ *     D15    D0
+ *     +---+---+
+ *     | A | B | 0
+ *     +---+---+
+ *     | C | D | 2
+ *     +---+---+
+ * This means that on LE systems each 16 bit word must be swapped. Note that
+ * this requires CONFIG_MTD_CFI_BE_BYTE_SWAP to be enabled to 'unswap' the CFI
+ * data and other flash commands which are always in D7-D0.
+ */
 #ifndef __ARMEB__
+#ifndef CONFIG_MTD_CFI_BE_BYTE_SWAP
+#  error CONFIG_MTD_CFI_BE_BYTE_SWAP required
+#endif
+
+static inline u16 flash_read16(void __iomem *addr)
+{
+	return be16_to_cpu(__raw_readw((void __iomem *)((unsigned long)addr ^ 0x2)));
+}
+
+static inline void flash_write16(u16 d, void __iomem *addr)
+{
+	__raw_writew(cpu_to_be16(d), (void __iomem *)((unsigned long)addr ^ 0x2));
+}
+
 #define	BYTE0(h)	((h) & 0xFF)
 #define	BYTE1(h)	(((h) >> 8) & 0xFF)
+
 #else
+
+static inline u16 flash_read16(const void __iomem *addr)
+{
+	return __raw_readw(addr);
+}
+
+static inline void flash_write16(u16 d, void __iomem *addr)
+{
+	__raw_writew(d, addr);
+}
+
 #define	BYTE0(h)	(((h) >> 8) & 0xFF)
 #define	BYTE1(h)	((h) & 0xFF)
 #endif
@@ -45,7 +90,7 @@
 static map_word ixp4xx_read16(struct map_info *map, unsigned long ofs)
 {
 	map_word val;
-	val.x[0] = le16_to_cpu(readw(map->virt + ofs));
+	val.x[0] = flash_read16(map->virt + ofs);
 	return val;
 }
 
@@ -57,19 +102,28 @@ static map_word ixp4xx_read16(struct map_info *map, unsigned long ofs)
 static void ixp4xx_copy_from(struct map_info *map, void *to,
 			     unsigned long from, ssize_t len)
 {
-	int i;
 	u8 *dest = (u8 *) to;
 	void __iomem *src = map->virt + from;
-	u16 data;
 
-	for (i = 0; i < (len / 2); i++) {
-		data = le16_to_cpu(readw(src + 2*i));
-		dest[i * 2] = BYTE0(data);
-		dest[i * 2 + 1] = BYTE1(data);
+	if (len <= 0)
+		return;
+
+	if (from & 1) {
+		*dest++ = BYTE1(flash_read16(src));
+                src++;
+		--len;
 	}
 
-	if (len & 1)
-		dest[len - 1] = BYTE0(le16_to_cpu(readw(src + 2*i)));
+	while (len >= 2) {
+		u16 data = flash_read16(src);
+		*dest++ = BYTE0(data);
+		*dest++ = BYTE1(data);
+		src += 2;
+		len -= 2;
+        }
+
+	if (len > 0)
+		*dest++ = BYTE0(flash_read16(src));
 }
 
 /*
@@ -79,7 +133,7 @@ static void ixp4xx_copy_from(struct map_info *map, void *to,
 static void ixp4xx_probe_write16(struct map_info *map, map_word d, unsigned long adr)
 {
 	if (!(adr & 1))
-		writew(cpu_to_le16(d.x[0]), map->virt + adr);
+		flash_write16(d.x[0], map->virt + adr);
 }
 
 /*
@@ -87,7 +141,7 @@ static void ixp4xx_probe_write16(struct map_info *map, map_word d, unsigned long
  */
 static void ixp4xx_write16(struct map_info *map, map_word d, unsigned long adr)
 {
-	writew(cpu_to_le16(d.x[0]), map->virt + adr);
+	flash_write16(d.x[0], map->virt + adr);
 }
 
 struct ixp4xx_flash_info {
diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c
index f00ee7e54db..632eb2aa968 100644
--- a/drivers/mtd/maps/nettel.c
+++ b/drivers/mtd/maps/nettel.c
@@ -6,7 +6,7 @@
  *      (C) Copyright 2000-2001, Greg Ungerer (gerg@snapgear.com)
  *      (C) Copyright 2001-2002, SnapGear (www.snapgear.com)
  *
- *	$Id: nettel.c,v 1.11 2005/11/07 11:14:27 gleixner Exp $
+ *	$Id: nettel.c,v 1.12 2005/11/29 14:30:00 gleixner Exp $
  */
 
 /****************************************************************************/
@@ -479,7 +479,7 @@ void __exit nettel_cleanup(void)
 	}
 	if (nettel_intel_map.virt) {
 		iounmap(nettel_intel_map.virt);
-		nettel_intel_map.virt = 0;
+		nettel_intel_map.virt = NULL;
 	}
 #endif
 }
diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
index 8b3570b0909..21822c2edbe 100644
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -7,7 +7,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
- *  $Id: pci.c,v 1.13 2005/11/07 11:14:27 gleixner Exp $
+ *  $Id: pci.c,v 1.14 2005/11/17 08:20:27 dwmw2 Exp $
  *
  * Generic PCI memory map driver.  We support the following boards:
  *  - Intel IQ80310 ATU.
@@ -102,7 +102,7 @@ static void mtd_pci_copyto(struct map_info *_map, unsigned long to, const void *
 	memcpy_toio(map->base + map->translate(map, to), from, len);
 }
 
-static struct map_info mtd_pci_map = {
+static const struct map_info mtd_pci_map = {
 	.phys =		NO_XIP,
 	.copy_from =	mtd_pci_copyfrom,
 	.copy_to =	mtd_pci_copyto,
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 9ee760f97bc..f49ebc3c460 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -1,5 +1,5 @@
 /*
- * $Id: physmap.c,v 1.38 2005/11/07 11:14:28 gleixner Exp $
+ * $Id: physmap.c,v 1.39 2005/11/29 14:49:36 gleixner Exp $
  *
  * Normal mappings of chips in physical memory
  *
@@ -19,6 +19,7 @@
 #include <linux/mtd/map.h>
 #include <linux/config.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
 
 static struct mtd_info *mymtd;
 
diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c
index 6fb9f3c57aa..ed92afadd8a 100644
--- a/drivers/mtd/maps/sc520cdp.c
+++ b/drivers/mtd/maps/sc520cdp.c
@@ -16,7 +16,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  *
- * $Id: sc520cdp.c,v 1.22 2005/11/07 11:14:28 gleixner Exp $
+ * $Id: sc520cdp.c,v 1.23 2005/11/17 08:20:27 dwmw2 Exp $
  *
  *
  * The SC520CDP is an evaluation board for the Elan SC520 processor available
@@ -164,7 +164,7 @@ struct sc520_par_table
 	unsigned long default_address;
 };
 
-static struct sc520_par_table par_table[NUM_FLASH_BANKS] =
+static const struct sc520_par_table par_table[NUM_FLASH_BANKS] =
 {
 	{	/* Flash Bank #0: selected by ROMCS0 */
 		SC520_PAR_ROMCS0,