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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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561b036ad9
Convert OMAP based boards to use physmap-flash. Refreshed against today's Linux omap kernel tree Cc: linux-mtd@lists.infradead.org Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
34 lines
692 B
C
34 lines
692 B
C
/*
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* Flash support for OMAP1
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <plat/io.h>
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#include <plat/tc.h>
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void omap1_set_vpp(struct map_info *map, int enable)
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{
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static int count;
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u32 l;
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if (enable) {
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if (count++ == 0) {
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l = omap_readl(EMIFS_CONFIG);
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l |= OMAP_EMIFS_CONFIG_WP;
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omap_writel(l, EMIFS_CONFIG);
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}
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} else {
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if (count && (--count == 0)) {
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l = omap_readl(EMIFS_CONFIG);
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l &= ~OMAP_EMIFS_CONFIG_WP;
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omap_writel(l, EMIFS_CONFIG);
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}
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}
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}
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