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Adaptive Voltage Scaling is a technology used in TI SoCs to optimize the operating voltage based on characterization data written to efuse during production. Add a driver to support this feature for K3 line of SoCs, initially for AM65x. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Keerthy <j-keerthy@ti.com>
29 lines
600 B
C
29 lines
600 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Texas Instruments' K3 Adaptive Voltage Scaling driver
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*
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* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
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* Tero Kristo <t-kristo@ti.com>
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*
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*/
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#ifndef _K3_AVS0_
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#define _K3_AVS0_
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#define AM6_VDD_WKUP 0
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#define AM6_VDD_MCU 1
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#define AM6_VDD_CORE 2
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#define AM6_VDD_MPU0 3
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#define AM6_VDD_MPU1 4
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#define NUM_OPPS 4
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#define AM6_OPP_NOM 1
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#define AM6_OPP_OD 2
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#define AM6_OPP_TURBO 3
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int k3_avs_set_opp(struct udevice *dev, int vdd_id, int opp_id);
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int k3_avs_notify_freq(int dev_id, int clk_id, u32 freq);
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#endif
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