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R-Car M3-W needs a delay of 1 µs before powering off the A3IR and A3VC power domains. Add support for this using a new flag, which indicates that a power area is subject to this quirk. Inspired by a patch in the BSP by Dien Pham. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/ecbc3465c598084c904dd3714e2894463094ed9a.1713348705.git.geert+renesas@glider.be Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Renesas R-Car M3-W System Controller
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*
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* Copyright (C) 2016 Glider bvba
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* Copyright (C) 2018-2019 Renesas Electronics Corporation
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*/
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#include <linux/bits.h>
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#include <linux/kernel.h>
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#include <dt-bindings/power/r8a7796-sysc.h>
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#include "rcar-sysc.h"
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static const struct rcar_sysc_area r8a77960_areas[] __initconst = {
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{ "always-on", 0, 0, R8A7796_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
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{ "ca57-scu", 0x1c0, 0, R8A7796_PD_CA57_SCU, R8A7796_PD_ALWAYS_ON,
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PD_SCU },
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{ "ca57-cpu0", 0x80, 0, R8A7796_PD_CA57_CPU0, R8A7796_PD_CA57_SCU,
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PD_CPU_NOCR },
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{ "ca57-cpu1", 0x80, 1, R8A7796_PD_CA57_CPU1, R8A7796_PD_CA57_SCU,
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PD_CPU_NOCR },
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{ "ca53-scu", 0x140, 0, R8A7796_PD_CA53_SCU, R8A7796_PD_ALWAYS_ON,
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PD_SCU },
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{ "ca53-cpu0", 0x200, 0, R8A7796_PD_CA53_CPU0, R8A7796_PD_CA53_SCU,
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PD_CPU_NOCR },
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{ "ca53-cpu1", 0x200, 1, R8A7796_PD_CA53_CPU1, R8A7796_PD_CA53_SCU,
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PD_CPU_NOCR },
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{ "ca53-cpu2", 0x200, 2, R8A7796_PD_CA53_CPU2, R8A7796_PD_CA53_SCU,
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PD_CPU_NOCR },
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{ "ca53-cpu3", 0x200, 3, R8A7796_PD_CA53_CPU3, R8A7796_PD_CA53_SCU,
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PD_CPU_NOCR },
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{ "cr7", 0x240, 0, R8A7796_PD_CR7, R8A7796_PD_ALWAYS_ON },
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{ "a3vc", 0x380, 0, R8A7796_PD_A3VC, R8A7796_PD_ALWAYS_ON,
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PD_OFF_DELAY },
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{ "a2vc0", 0x3c0, 0, R8A7796_PD_A2VC0, R8A7796_PD_A3VC },
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{ "a2vc1", 0x3c0, 1, R8A7796_PD_A2VC1, R8A7796_PD_A3VC },
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{ "3dg-a", 0x100, 0, R8A7796_PD_3DG_A, R8A7796_PD_ALWAYS_ON },
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{ "3dg-b", 0x100, 1, R8A7796_PD_3DG_B, R8A7796_PD_3DG_A },
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{ "a3ir", 0x180, 0, R8A7796_PD_A3IR, R8A7796_PD_ALWAYS_ON,
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PD_OFF_DELAY },
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};
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const struct rcar_sysc_info r8a77960_sysc_info __initconst = {
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.areas = r8a77960_areas,
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.num_areas = ARRAY_SIZE(r8a77960_areas),
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};
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