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OpenCloudOS-Kernel/arch/arm/mach-omap1/flash.c

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omap: convert boards to use physmap-flash 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>
2010-02-16 02:03:32 +08:00
/*
* 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.
*/
ARM: OMAP1: Move most of plat/io.h into local iomap.h There's no need to have these in plat/io.h. While at it, clean up the includes to group them like they typically are grouped. Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-25 02:34:34 +08:00
#include <linux/io.h>
omap: convert boards to use physmap-flash 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>
2010-02-16 02:03:32 +08:00
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
ARM: OMAP1: Move plat/tc.h to mach/tc.h for omap1 We cannot keep this in plat as it causes problems with the ARM single zImage support. Cc: Felipe Balbi <balbi@ti.com> Cc: linux-pcmcia@lists.infradead.org Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-03 04:39:28 +08:00
#include <mach/tc.h>
ARM: OMAP1: Move flash.h from plat to mach This is only used by omap1. Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-21 02:41:37 +08:00
#include <mach/flash.h>
omap: convert boards to use physmap-flash 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>
2010-02-16 02:03:32 +08:00
ARM: OMAP: Remove plat/io.h by splitting it into mach/io.h and mach/hardware.h This is needed to minimize io.h so the SoC specific io.h for ARMs can removed. Note that minimal driver changes for DSS and RNG are needed to include cpu.h for SoC detection macros. Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Matt Mackall <mpm@selenic.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-25 02:34:35 +08:00
#include <mach/hardware.h>
ARM: 6910/1: MTD: physmap: let set_vpp() pass a platform_device instead of a map_info The set_vpp() method provided by physmap passes a map_info back to the platform code, which has little relevance as far as the platform is concerned (this parameter is completely unused). Instead, pass the platform_device, which can be used in the pismo driver to retrieve some important information in a nicer way, instead of the hack that was in place. The empty set_vpp function in board-at572d940hf_ek.c is left untouched, as the board/SoC is scheduled for removal. Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Philipp Zabel <philipp.zabel@gmail.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-18 17:51:55 +08:00
void omap1_set_vpp(struct platform_device *pdev, int enable)
omap: convert boards to use physmap-flash 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>
2010-02-16 02:03:32 +08:00
{
u32 l;
mtd: maps: physmap: Add reference counter to set_vpp() This patch is part of a set which fixes unnecessary flash erase and write errors resulting from the MTD CFI driver turning off vpp while an erase is in progress. This patch allows physmap_set_vpp() calls to be nested by adding a reference counter. omap1_set_vpp() already used a reference counter. Since it is called from physmap_set_vpp(), omap1_set_vpp() can now be simplified. simtec_nor_vpp() already disabled hard interrupts. Since it is called from physmap_set_vpp(), simtec_nor_vpp() can now be simplified. Signed-off-by: Paul Parsons <lost.distance@yahoo.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-07 22:12:08 +08:00
l = omap_readl(EMIFS_CONFIG);
if (enable)
l |= OMAP_EMIFS_CONFIG_WP;
else
l &= ~OMAP_EMIFS_CONFIG_WP;
omap_writel(l, EMIFS_CONFIG);
omap: convert boards to use physmap-flash 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>
2010-02-16 02:03:32 +08:00
}