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9173c5ceb0
Trusted Firmware-A (TF-A) for rk3399 implements a SiP call to get the on-die termination (ODT) and auto power down parameters from kernel, this patch adds the functionality to do this. Also, if DDR clock frequency is lower than the on-die termination (ODT) disable frequency this driver should disable the DDR ODT. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Gaël PORTAY <gael.portay@collabora.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
28 lines
1.1 KiB
C
28 lines
1.1 KiB
C
/*
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* Copyright (c) 2016, Fuzhou Rockchip Electronics Co., Ltd
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* Author: Lin Huang <hl@rock-chips.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef __SOC_ROCKCHIP_SIP_H
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#define __SOC_ROCKCHIP_SIP_H
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#define ROCKCHIP_SIP_DRAM_FREQ 0x82000008
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#define ROCKCHIP_SIP_CONFIG_DRAM_INIT 0x00
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#define ROCKCHIP_SIP_CONFIG_DRAM_SET_RATE 0x01
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#define ROCKCHIP_SIP_CONFIG_DRAM_ROUND_RATE 0x02
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#define ROCKCHIP_SIP_CONFIG_DRAM_SET_AT_SR 0x03
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#define ROCKCHIP_SIP_CONFIG_DRAM_GET_BW 0x04
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#define ROCKCHIP_SIP_CONFIG_DRAM_GET_RATE 0x05
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#define ROCKCHIP_SIP_CONFIG_DRAM_CLR_IRQ 0x06
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#define ROCKCHIP_SIP_CONFIG_DRAM_SET_PARAM 0x07
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#define ROCKCHIP_SIP_CONFIG_DRAM_SET_ODT_PD 0x08
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#endif
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