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flash.c

/*
 * Flash support for OMAP1
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>

#include <plat/io.h>
#include <plat/tc.h>
#include <plat/flash.h>

void omap1_set_vpp(struct map_info *map, int enable)
{
      static int count;
      u32 l;

      if (enable) {
            if (count++ == 0) {
                  l = omap_readl(EMIFS_CONFIG);
                  l |= OMAP_EMIFS_CONFIG_WP;
                  omap_writel(l, EMIFS_CONFIG);
            }
      } else {
            if (count && (--count == 0)) {
                  l = omap_readl(EMIFS_CONFIG);
                  l &= ~OMAP_EMIFS_CONFIG_WP;
                  omap_writel(l, EMIFS_CONFIG);
            }
      }
}

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