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[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>
This commit is contained in:
Yoichi Yuasa
David Woodhouse
parent
98b830d260
commit
5041f1f1b7
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@ -384,14 +384,6 @@ config MTD_REDWOOD
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Redwood board. If you have one of these boards and would like to
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use the flash chips on it, say 'Y'.
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config MTD_OCELOT
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tristate "Momenco Ocelot boot flash device"
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depends on MOMENCO_OCELOT
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help
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This enables access routines for the boot flash device and for the
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NVRAM on the Momenco Ocelot board. If you have one of these boards
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and would like access to either of these, say 'Y'.
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config MTD_SOLUTIONENGINE
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tristate "CFI Flash device mapped on Hitachi SolutionEngine"
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depends on SUPERH && MTD_CFI && MTD_REDBOOT_PARTS
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@ -43,7 +43,6 @@ obj-$(CONFIG_MTD_SUN_UFLASH) += sun_uflash.o
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obj-$(CONFIG_MTD_VMAX) += vmax301.o
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obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o
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obj-$(CONFIG_MTD_DBOX2) += dbox2-flash.o
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obj-$(CONFIG_MTD_OCELOT) += ocelot.o
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obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
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obj-$(CONFIG_MTD_PCI) += pci.o
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obj-$(CONFIG_MTD_ALCHEMY) += alchemy-flash.o
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@ -1,175 +0,0 @@
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/*
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* $Id: ocelot.c,v 1.17 2005/11/07 11:14:27 gleixner Exp $
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*
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* Flash on Momenco Ocelot
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/io.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/partitions.h>
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#define OCELOT_PLD 0x2c000000
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#define FLASH_WINDOW_ADDR 0x2fc00000
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#define FLASH_WINDOW_SIZE 0x00080000
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#define FLASH_BUSWIDTH 1
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#define NVRAM_WINDOW_ADDR 0x2c800000
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#define NVRAM_WINDOW_SIZE 0x00007FF0
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#define NVRAM_BUSWIDTH 1
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static unsigned int cacheflush = 0;
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static struct mtd_info *flash_mtd;
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static struct mtd_info *nvram_mtd;
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static void ocelot_ram_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
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{
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struct map_info *map = mtd->priv;
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size_t done = 0;
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/* If we use memcpy, it does word-wide writes. Even though we told the
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GT64120A that it's an 8-bit wide region, word-wide writes don't work.
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We end up just writing the first byte of the four to all four bytes.
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So we have this loop instead */
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*retlen = len;
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while(len) {
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__raw_writeb(*(unsigned char *) from, map->virt + to);
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from++;
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to++;
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len--;
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}
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}
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static struct mtd_partition *parsed_parts;
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struct map_info ocelot_flash_map = {
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.name = "Ocelot boot flash",
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.size = FLASH_WINDOW_SIZE,
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.bankwidth = FLASH_BUSWIDTH,
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.phys = FLASH_WINDOW_ADDR,
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};
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struct map_info ocelot_nvram_map = {
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.name = "Ocelot NVRAM",
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.size = NVRAM_WINDOW_SIZE,
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.bankwidth = NVRAM_BUSWIDTH,
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.phys = NVRAM_WINDOW_ADDR,
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};
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static const char *probes[] = { "RedBoot", NULL };
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static int __init init_ocelot_maps(void)
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{
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void *pld;
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int nr_parts;
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unsigned char brd_status;
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printk(KERN_INFO "Momenco Ocelot MTD mappings: Flash 0x%x at 0x%x, NVRAM 0x%x at 0x%x\n",
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FLASH_WINDOW_SIZE, FLASH_WINDOW_ADDR, NVRAM_WINDOW_SIZE, NVRAM_WINDOW_ADDR);
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/* First check whether the flash jumper is present */
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pld = ioremap(OCELOT_PLD, 0x10);
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if (!pld) {
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printk(KERN_NOTICE "Failed to ioremap Ocelot PLD\n");
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return -EIO;
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}
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brd_status = readb(pld+4);
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iounmap(pld);
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/* Now ioremap the NVRAM space */
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ocelot_nvram_map.virt = ioremap_nocache(NVRAM_WINDOW_ADDR, NVRAM_WINDOW_SIZE);
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if (!ocelot_nvram_map.virt) {
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printk(KERN_NOTICE "Failed to ioremap Ocelot NVRAM space\n");
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return -EIO;
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}
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simple_map_init(&ocelot_nvram_map);
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/* And do the RAM probe on it to get an MTD device */
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nvram_mtd = do_map_probe("map_ram", &ocelot_nvram_map);
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if (!nvram_mtd) {
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printk("NVRAM probe failed\n");
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goto fail_1;
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}
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nvram_mtd->owner = THIS_MODULE;
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nvram_mtd->erasesize = 16;
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/* Override the write() method */
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nvram_mtd->write = ocelot_ram_write;
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/* Now map the flash space */
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ocelot_flash_map.virt = ioremap_nocache(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE);
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if (!ocelot_flash_map.virt) {
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printk(KERN_NOTICE "Failed to ioremap Ocelot flash space\n");
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goto fail_2;
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}
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/* Now the cached version */
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ocelot_flash_map.cached = (unsigned long)__ioremap(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE, 0);
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simple_map_init(&ocelot_flash_map);
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/* Only probe for flash if the write jumper is present */
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if (brd_status & 0x40) {
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flash_mtd = do_map_probe("jedec", &ocelot_flash_map);
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} else {
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printk(KERN_NOTICE "Ocelot flash write jumper not present. Treating as ROM\n");
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}
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/* If that failed or the jumper's absent, pretend it's ROM */
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if (!flash_mtd) {
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flash_mtd = do_map_probe("map_rom", &ocelot_flash_map);
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/* If we're treating it as ROM, set the erase size */
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if (flash_mtd)
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flash_mtd->erasesize = 0x10000;
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}
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if (!flash_mtd)
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goto fail3;
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add_mtd_device(nvram_mtd);
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flash_mtd->owner = THIS_MODULE;
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nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0);
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if (nr_parts > 0)
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add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
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else
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add_mtd_device(flash_mtd);
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return 0;
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fail3:
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iounmap((void *)ocelot_flash_map.virt);
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if (ocelot_flash_map.cached)
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iounmap((void *)ocelot_flash_map.cached);
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fail_2:
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map_destroy(nvram_mtd);
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fail_1:
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iounmap((void *)ocelot_nvram_map.virt);
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return -ENXIO;
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}
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static void __exit cleanup_ocelot_maps(void)
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{
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del_mtd_device(nvram_mtd);
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map_destroy(nvram_mtd);
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iounmap((void *)ocelot_nvram_map.virt);
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if (parsed_parts)
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del_mtd_partitions(flash_mtd);
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else
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del_mtd_device(flash_mtd);
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map_destroy(flash_mtd);
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iounmap((void *)ocelot_flash_map.virt);
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if (ocelot_flash_map.cached)
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iounmap((void *)ocelot_flash_map.cached);
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}
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module_init(init_ocelot_maps);
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module_exit(cleanup_ocelot_maps);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Red Hat, Inc. - David Woodhouse <dwmw2@cambridge.redhat.com>");
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MODULE_DESCRIPTION("MTD map driver for Momenco Ocelot board");
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