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memory: tegra: Add EMC (external memory controller) driver

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Implements functionality needed to change the rate of the memory bus
clock.

Signed-off-by: Mikko Perttunen <[email protected]>
Signed-off-by: Tomeu Vizoso <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
This commit is contained in:
Mikko Perttunen 2015-03-12 15:48:03 +01:00 • committed by Thierry Reding
commit 73a7f0a906
4 changed files with 1123 additions and 0 deletions
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19
include/soc/tegra/emc.h Normal file
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/*
* Copyright (c) 2014 NVIDIA Corporation. All rights reserved.
*
* 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.
*/
#ifndef __SOC_TEGRA_EMC_H__
#define __SOC_TEGRA_EMC_H__
struct tegra_emc;
int tegra_emc_prepare_timing_change(struct tegra_emc *emc,
unsigned long rate);
void tegra_emc_complete_timing_change(struct tegra_emc *emc,
unsigned long rate);
#endif /* __SOC_TEGRA_EMC_H__ */