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path: root/recipes/linux/linux-mtx-1-2.4.24/02-mtd-mtx-1-map.diff
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diff -Nurb linux/drivers/mtd/maps/Config.in linux-mips-2.4.24-pre2+mtd-2004-01-27+mtx-map/drivers/mtd/maps/Config.in
--- linux/drivers/mtd/maps/Config.in	2004-11-17 18:17:59.049312400 +0100
+++ linux-mips-2.4.24-pre2+mtd-2004-01-27+mtx-map/drivers/mtd/maps/Config.in	2004-11-17 18:12:26.000000000 +0100
@@ -80,6 +80,7 @@
       bool '  Db1x00 boot flash device' CONFIG_MTD_DB1X00_BOOT 
       bool '  Db1x00 user flash device (2nd bank)' CONFIG_MTD_DB1X00_USER
    fi
+   dep_tristate '  MTX-1 flash device' CONFIG_MTD_MTX1 $CONFIG_MIPS_MTX1
    dep_tristate '  Flash chip mapping on ITE QED-4N-S01B, Globespan IVR or custom board' CONFIG_MTD_CSTM_MIPS_IXX $CONFIG_MTD_CFI $CONFIG_MTD_JEDEC $CONFIG_MTD_PARTITIONS 
    if [ "$CONFIG_MTD_CSTM_MIPS_IXX" = "y" -o "$CONFIG_MTD_CSTM_MIPS_IXX" = "m" ]; then
       hex '    Physical start address of flash mapping' CONFIG_MTD_CSTM_MIPS_IXX_START 0x8000000
diff -Nurb linux/drivers/mtd/maps/Makefile linux-mips-2.4.24-pre2+mtd-2004-01-27+mtx-map/drivers/mtd/maps/Makefile
--- linux/drivers/mtd/maps/Makefile	2004-11-17 18:17:59.051312096 +0100
+++ linux-mips-2.4.24-pre2+mtd-2004-01-27+mtx-map/drivers/mtd/maps/Makefile	2004-11-17 18:12:26.000000000 +0100
@@ -49,6 +49,7 @@
 obj-$(CONFIG_MTD_PCI)		+= pci.o
 obj-$(CONFIG_MTD_PB1XXX)	+= pb1xxx-flash.o
 obj-$(CONFIG_MTD_DB1X00)        += db1x00-flash.o
+obj-$(CONFIG_MTD_MTX1)          += mtx-1.o
 obj-$(CONFIG_MTD_LASAT)		+= lasat.o
 obj-$(CONFIG_MTD_AUTCPU12)	+= autcpu12-nvram.o
 obj-$(CONFIG_MTD_EDB7312)	+= edb7312.o
diff -Nurb linux/drivers/mtd/maps/mtx-1.c linux-mips-2.4.24-pre2+mtd-2004-01-27+mtx-map/drivers/mtd/maps/mtx-1.c
--- linux/drivers/mtd/maps/mtx-1.c	2004-11-17 18:17:02.689880336 +0100
+++ linux-mips-2.4.24-pre2+mtd-2004-01-27+mtx-map/drivers/mtd/maps/mtx-1.c	2004-11-17 18:12:26.000000000 +0100
@@ -1,166 +1,78 @@
 /*
  * Flash memory access on 4G Systems MTX-1 board
  * 
- * (C) 2003 Pete Popov <ppopov@mvista.com>
- *	    Bruno Randolf <bruno.randolf@4g-systems.de>
+ * (C) Bruno Randolf (4G Systeme GmbH) <bruno.randolf@4g-systems.biz>
  */
 
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/init.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 
 #include <asm/io.h>
-#include <asm/au1000.h>
 
-#ifdef 	DEBUG_RW
-#define	DBG(x...)	printk(x)
-#else
-#define	DBG(x...)	
-#endif
-
-#ifdef CONFIG_MIPS_MTX1
 #define WINDOW_ADDR 0x1E000000
 #define WINDOW_SIZE 0x2000000
-#endif
-
-__u8 physmap_read8(struct map_info *map, unsigned long ofs)
-{
-	__u8 ret;
-	ret = __raw_readb(map->map_priv_1 + ofs);
-	DBG("read8 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
-	return ret;
-}
-
-__u16 physmap_read16(struct map_info *map, unsigned long ofs)
-{
-	__u16 ret;
-	ret = __raw_readw(map->map_priv_1 + ofs);
-	DBG("read16 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
-	return ret;
-}
-
-__u32 physmap_read32(struct map_info *map, unsigned long ofs)
-{
-	__u32 ret;
-	ret = __raw_readl(map->map_priv_1 + ofs);
-	DBG("read32 from %x, %x\n", (unsigned)(map->map_priv_1 + ofs), ret);
-	return ret;
-}
-
-void physmap_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-{
-	DBG("physmap_copy from %x to %x\n", (unsigned)from, (unsigned)to);
-	memcpy_fromio(to, map->map_priv_1 + from, len);
-}
-
-void physmap_write8(struct map_info *map, __u8 d, unsigned long adr)
-{
-	DBG("write8 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
-	__raw_writeb(d, map->map_priv_1 + adr);
-	mb();
-}
-
-void physmap_write16(struct map_info *map, __u16 d, unsigned long adr)
-{
-	DBG("write16 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
-	__raw_writew(d, map->map_priv_1 + adr);
-	mb();
-}
-
-void physmap_write32(struct map_info *map, __u32 d, unsigned long adr)
-{
-	DBG("write32 at %x, %x\n", (unsigned)(map->map_priv_1 + adr), d);
-	__raw_writel(d, map->map_priv_1 + adr);
-	mb();
-}
-
-void physmap_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
-{
-	DBG("physmap_copy_to %x from %x\n", (unsigned)to, (unsigned)from);
-	memcpy_toio(map->map_priv_1 + to, from, len);
-}
-
-
+#define BUSWIDTH    4
 
 static struct map_info mtx1_map = {
-	name:		"MTX-1 flash",
-	read8: physmap_read8,
-	read16: physmap_read16,
-	read32: physmap_read32,
-	copy_from: physmap_copy_from,
-	write8: physmap_write8,
-	write16: physmap_write16,
-	write32: physmap_write32,
-	copy_to: physmap_copy_to,
+	.name = "MTX-1 flash",
+	.size = WINDOW_SIZE,
+	.buswidth = BUSWIDTH,
+	.phys = WINDOW_ADDR
 };
 
-
-static unsigned long flash_size = 0x01000000;
-static unsigned char flash_buswidth = 4;
 static struct mtd_partition mtx1_partitions[] = {
         {
-                name: "user fs",
-                size: 0x1c00000,
-                offset: 0,
+                .name = "user fs",
+                .size = 0x1c00000,
+                .offset = 0,
         },{
-                name: "yamon",
-                size: 0x0100000,
-                offset: MTDPART_OFS_APPEND,
-                mask_flags: MTD_WRITEABLE
+                .name = "yamon",
+                .size = 0x0100000,
+                .offset = MTDPART_OFS_APPEND,
+                .mask_flags = MTD_WRITEABLE  /* force read-only */
         },{
-                name: "raw kernel",
-                size: 0x02c0000,
-                offset: MTDPART_OFS_APPEND,
+                .name = "raw kernel",
+                .size = 0x02c0000,
+                .offset = MTDPART_OFS_APPEND,
         },{
-                name: "yamon env vars",
-                size: 0x0040000,
-                offset: MTDPART_OFS_APPEND,
-                mask_flags: MTD_WRITEABLE
+                .name = "yamon environment",
+                .size = 0x0040000,
+                .offset = MTDPART_OFS_APPEND,
+                .mask_flags = MTD_WRITEABLE  /* force read-only */
         }
 };
 
-
-#define NB_OF(x)  (sizeof(x)/sizeof(x[0]))
-
-static struct mtd_partition *parsed_parts;
 static struct mtd_info *mymtd;
 
 int __init mtx1_mtd_init(void)
 {
-	struct mtd_partition *parts;
-	int nb_parts = 0;
-	char *part_type;
+	printk(KERN_NOTICE "MTX-1 flash: probing %d-bit flash bus at %x\n",
+			mtx1_map.buswidth*8, WINDOW_ADDR);
 	
-	/* Default flash buswidth */
-	mtx1_map.buswidth = flash_buswidth;
+	mtx1_map.virt = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
+	if (!mtx1_map.virt) {
+		printk("mtx_mtd_init: failed to ioremap\n");
+		return -EIO;
+	}
+
+	simple_map_init(&mtx1_map);
 
-	/*
-	 * Static partition definition selection
-	 */
-	part_type = "static";
-	parts = mtx1_partitions;
-	nb_parts = NB_OF(mtx1_partitions);
-	mtx1_map.size = flash_size;
-
-	/*
-	 * Now let's probe for the actual flash.  Do it here since
-	 * specific machine settings might have been set above.
-	 */
-	printk(KERN_NOTICE "MTX-1 flash: probing %d-bit flash bus\n",
-			mtx1_map.buswidth*8);
-	mtx1_map.map_priv_1 =
-		(unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE);
 	mymtd = do_map_probe("cfi_probe", &mtx1_map);
-	if (!mymtd) return -ENXIO;
-	mymtd->module = THIS_MODULE;
+	if (!mymtd) {
+		iounmap(mtx1_map.virt);
+		return -ENXIO;
+	}
+
+	mymtd->owner = THIS_MODULE;
 
-	add_mtd_partitions(mymtd, parts, nb_parts);
-	return 0;
+	return add_mtd_partitions(mymtd, mtx1_partitions, ARRAY_SIZE(mtx1_partitions));
 }
 
 static void __exit mtx1_mtd_cleanup(void)
@@ -168,14 +80,14 @@
 	if (mymtd) {
 		del_mtd_partitions(mymtd);
 		map_destroy(mymtd);
-		if (parsed_parts)
-			kfree(parsed_parts);
 	}
+	if (mtx1_map.virt)
+		iounmap(mtx1_map.virt);
 }
 
 module_init(mtx1_mtd_init);
 module_exit(mtx1_mtd_cleanup);
 
-MODULE_AUTHOR("Pete Popov");
+MODULE_AUTHOR("Bruno Randolf <bruno.randolf@4g-systems.biz>");
 MODULE_DESCRIPTION("MTX-1 CFI map driver");
 MODULE_LICENSE("GPL");