[MTD] Remove Momenco Ocelot NOR flash support

This patch has removed Momenco Ocelot support from MTD.
Ocelot support has already removed.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

drivers/mtd/maps/Kconfig

@@ -384,14 +384,6 @@ config MTD_REDWOOD
 	  Redwood board. If you have one of these boards and would like to
 	  use the flash chips on it, say 'Y'.
 
-config MTD_OCELOT
-	tristate "Momenco Ocelot boot flash device"
-	depends on MOMENCO_OCELOT
-	help
-	  This enables access routines for the boot flash device and for the
-	  NVRAM on the Momenco Ocelot board. If you have one of these boards
-	  and would like access to either of these, say 'Y'.
-
 config MTD_SOLUTIONENGINE
 	tristate "CFI Flash device mapped on Hitachi SolutionEngine"
 	depends on SUPERH && MTD_CFI && MTD_REDBOOT_PARTS

drivers/mtd/maps/Makefile

@@ -43,7 +43,6 @@ obj-$(CONFIG_MTD_SUN_UFLASH)	+= sun_uflash.o
 obj-$(CONFIG_MTD_VMAX)		+= vmax301.o
 obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o
 obj-$(CONFIG_MTD_DBOX2)		+= dbox2-flash.o
-obj-$(CONFIG_MTD_OCELOT)	+= ocelot.o
 obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
 obj-$(CONFIG_MTD_PCI)		+= pci.o
 obj-$(CONFIG_MTD_ALCHEMY)       += alchemy-flash.o

drivers/mtd/maps/ocelot.c

-/*
- * $Id: ocelot.c,v 1.17 2005/11/07 11:14:27 gleixner Exp $
- *
- * Flash on Momenco Ocelot
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#define OCELOT_PLD 0x2c000000
-#define FLASH_WINDOW_ADDR 0x2fc00000
-#define FLASH_WINDOW_SIZE 0x00080000
-#define FLASH_BUSWIDTH 1
-#define NVRAM_WINDOW_ADDR 0x2c800000
-#define NVRAM_WINDOW_SIZE 0x00007FF0
-#define NVRAM_BUSWIDTH 1
-
-static unsigned int cacheflush = 0;
-
-static struct mtd_info *flash_mtd;
-static struct mtd_info *nvram_mtd;
-
-static void ocelot_ram_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
-{
-        struct map_info *map = mtd->priv;
-	size_t done = 0;
-
-	/* If we use memcpy, it does word-wide writes. Even though we told the
-	   GT64120A that it's an 8-bit wide region, word-wide writes don't work.
-	   We end up just writing the first byte of the four to all four bytes.
-	   So we have this loop instead */
-	*retlen = len;
-	while(len) {
-		__raw_writeb(*(unsigned char *) from, map->virt + to);
-		from++;
-		to++;
-		len--;
-	}
-}
-
-static struct mtd_partition *parsed_parts;
-
-struct map_info ocelot_flash_map = {
-	.name = "Ocelot boot flash",
-	.size = FLASH_WINDOW_SIZE,
-	.bankwidth = FLASH_BUSWIDTH,
-	.phys = FLASH_WINDOW_ADDR,
-};
-
-struct map_info ocelot_nvram_map = {
-	.name = "Ocelot NVRAM",
-	.size = NVRAM_WINDOW_SIZE,
-	.bankwidth = NVRAM_BUSWIDTH,
-	.phys = NVRAM_WINDOW_ADDR,
-};
-
-static const char *probes[] = { "RedBoot", NULL };
-
-static int __init init_ocelot_maps(void)
-{
-	void *pld;
-	int nr_parts;
-	unsigned char brd_status;
-
-       	printk(KERN_INFO "Momenco Ocelot MTD mappings: Flash 0x%x at 0x%x, NVRAM 0x%x at 0x%x\n",
-	       FLASH_WINDOW_SIZE, FLASH_WINDOW_ADDR, NVRAM_WINDOW_SIZE, NVRAM_WINDOW_ADDR);
-
-	/* First check whether the flash jumper is present */
-	pld = ioremap(OCELOT_PLD, 0x10);
-	if (!pld) {
-		printk(KERN_NOTICE "Failed to ioremap Ocelot PLD\n");
-		return -EIO;
-	}
-	brd_status = readb(pld+4);
-	iounmap(pld);
-
-	/* Now ioremap the NVRAM space */
-	ocelot_nvram_map.virt = ioremap_nocache(NVRAM_WINDOW_ADDR, NVRAM_WINDOW_SIZE);
-	if (!ocelot_nvram_map.virt) {
-		printk(KERN_NOTICE "Failed to ioremap Ocelot NVRAM space\n");
-		return -EIO;
-	}
-
-	simple_map_init(&ocelot_nvram_map);
-
-	/* And do the RAM probe on it to get an MTD device */
-	nvram_mtd = do_map_probe("map_ram", &ocelot_nvram_map);
-	if (!nvram_mtd) {
-		printk("NVRAM probe failed\n");
-		goto fail_1;
-	}
-	nvram_mtd->owner = THIS_MODULE;
-	nvram_mtd->erasesize = 16;
-	/* Override the write() method */
-	nvram_mtd->write = ocelot_ram_write;
-
-	/* Now map the flash space */
-	ocelot_flash_map.virt = ioremap_nocache(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE);
-	if (!ocelot_flash_map.virt) {
-		printk(KERN_NOTICE "Failed to ioremap Ocelot flash space\n");
-		goto fail_2;
-	}
-	/* Now the cached version */
-	ocelot_flash_map.cached = (unsigned long)__ioremap(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE, 0);
-
-	simple_map_init(&ocelot_flash_map);
-
-	/* Only probe for flash if the write jumper is present */
-	if (brd_status & 0x40) {
-		flash_mtd = do_map_probe("jedec", &ocelot_flash_map);
-	} else {
-		printk(KERN_NOTICE "Ocelot flash write jumper not present. Treating as ROM\n");
-	}
-	/* If that failed or the jumper's absent, pretend it's ROM */
-	if (!flash_mtd) {
-		flash_mtd = do_map_probe("map_rom", &ocelot_flash_map);
-		/* If we're treating it as ROM, set the erase size */
-		if (flash_mtd)
-			flash_mtd->erasesize = 0x10000;
-	}
-	if (!flash_mtd)
-		goto fail3;
-
-	add_mtd_device(nvram_mtd);
-
-	flash_mtd->owner = THIS_MODULE;
-	nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0);
-
-	if (nr_parts > 0)
-		add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
-	else
-		add_mtd_device(flash_mtd);
-
-	return 0;
-
- fail3:
-	iounmap((void *)ocelot_flash_map.virt);
-	if (ocelot_flash_map.cached)
-			iounmap((void *)ocelot_flash_map.cached);
- fail_2:
-	map_destroy(nvram_mtd);
- fail_1:
-	iounmap((void *)ocelot_nvram_map.virt);
-
-	return -ENXIO;
-}
-
-static void __exit cleanup_ocelot_maps(void)
-{
-	del_mtd_device(nvram_mtd);
-	map_destroy(nvram_mtd);
-	iounmap((void *)ocelot_nvram_map.virt);
-
-	if (parsed_parts)
-		del_mtd_partitions(flash_mtd);
-	else
-		del_mtd_device(flash_mtd);
-	map_destroy(flash_mtd);
-	iounmap((void *)ocelot_flash_map.virt);
-	if (ocelot_flash_map.cached)
-		iounmap((void *)ocelot_flash_map.cached);
-}
-
-module_init(init_ocelot_maps);
-module_exit(cleanup_ocelot_maps);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Red Hat, Inc. - David Woodhouse <dwmw2@cambridge.redhat.com>");
-MODULE_DESCRIPTION("MTD map driver for Momenco Ocelot board");