mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
dcfb81d61d
OMAP-L137/AM17x has limited number of dedicated EMIFA address pins, enough to interface directly to an SDRAM. If a device such as an asynchronous flash needs to be attached to the EMIFA, then either GPIO pins or a chip select may be used to control the flash device's upper address lines. This patch adds support for the NOR flash on the OMAP-L137/ AM17x user interface daughter board using the latch-addr-flash MTD mapping driver which allows flashes to be partially physically addressed. The upper address lines are set by a board specific code which is a separate patch. Signed-off-by: David Griego <dgriego@mvista.com> Signed-off-by: Aleksey Makarov <amakarov@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@ti.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
30 lines
716 B
C
30 lines
716 B
C
/*
|
|
* Interface for NOR flash driver whose high address lines are latched
|
|
*
|
|
* Copyright © 2008 MontaVista Software, Inc. <source@mvista.com>
|
|
*
|
|
* This file is licensed under the terms of the GNU General Public License
|
|
* version 2. This program is licensed "as is" without any warranty of any
|
|
* kind, whether express or implied.
|
|
*/
|
|
#ifndef __LATCH_ADDR_FLASH__
|
|
#define __LATCH_ADDR_FLASH__
|
|
|
|
struct map_info;
|
|
struct mtd_partition;
|
|
|
|
struct latch_addr_flash_data {
|
|
unsigned int width;
|
|
unsigned int size;
|
|
|
|
int (*init)(void *data, int cs);
|
|
void (*done)(void *data);
|
|
void (*set_window)(unsigned long offset, void *data);
|
|
void *data;
|
|
|
|
unsigned int nr_parts;
|
|
struct mtd_partition *parts;
|
|
};
|
|
|
|
#endif
|