![Aneesh V](/assets/img/avatar_default.png)
Device tree support for the EMIF driver. LPDDR2 generic timings extraction from device is managed using couple of helper functions which can be used by other memory controller drivers. Reviewed-by: Benoit Cousson <b-cousson@ti.com> Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Aneesh V <aneesh@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1 KiB
C
37 lines
1 KiB
C
/*
|
|
* OpenFirmware helpers for memory drivers
|
|
*
|
|
* Copyright (C) 2012 Texas Instruments, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef __LINUX_MEMORY_OF_REG_H
|
|
#define __LINUX_MEMORY_OF_REG_H
|
|
|
|
#ifdef CONFIG_OF
|
|
extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,
|
|
struct device *dev);
|
|
extern const struct lpddr2_timings
|
|
*of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
|
|
u32 device_type, u32 *nr_frequencies);
|
|
#else
|
|
static inline const struct lpddr2_min_tck
|
|
*of_get_min_tck(struct device_node *np, struct device *dev)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline const struct lpddr2_timings
|
|
*of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
|
|
u32 device_type, u32 *nr_frequencies)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif /* CONFIG_OF */
|
|
|
|
#endif /* __LINUX_MEMORY_OF_REG_ */
|