// SPDX-License-Identifier: GPL-2.0
/*
 * Renesas RZ/G2E System Controller
 * Copyright (C) 2018 Renesas Electronics Corp.
 *
 * Based on Renesas R-Car E3 System Controller
 */

#include <linux/bits.h>
#include <linux/kernel.h>
#include <linux/sys_soc.h>

#include <dt-bindings/power/r8a774c0-sysc.h>

#include "rcar-sysc.h"

static struct rcar_sysc_area r8a774c0_areas[] __initdata = {
        { "always-on",      0, 0, R8A774C0_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
        { "ca53-scu",   0x140, 0, R8A774C0_PD_CA53_SCU,  R8A774C0_PD_ALWAYS_ON,
          PD_SCU },
        { "ca53-cpu0",  0x200, 0, R8A774C0_PD_CA53_CPU0, R8A774C0_PD_CA53_SCU,
          PD_CPU_NOCR },
        { "ca53-cpu1",  0x200, 1, R8A774C0_PD_CA53_CPU1, R8A774C0_PD_CA53_SCU,
          PD_CPU_NOCR },
        { "a3vc",       0x380, 0, R8A774C0_PD_A3VC,     R8A774C0_PD_ALWAYS_ON },
        { "a2vc1",      0x3c0, 1, R8A774C0_PD_A2VC1,    R8A774C0_PD_A3VC },
        { "3dg-a",      0x100, 0, R8A774C0_PD_3DG_A,    R8A774C0_PD_ALWAYS_ON },
        { "3dg-b",      0x100, 1, R8A774C0_PD_3DG_B,    R8A774C0_PD_3DG_A },
};

/* Fixups for RZ/G2E ES1.0 revision */
static const struct soc_device_attribute r8a774c0[] __initconst = {
        { .soc_id = "r8a774c0", .revision = "ES1.0" },
        { /* sentinel */ }
};

static int __init r8a774c0_sysc_init(void)
{
        if (soc_device_match(r8a774c0)) {
                /* Fix incorrect 3DG hierarchy */
                swap(r8a774c0_areas[6], r8a774c0_areas[7]);
                r8a774c0_areas[6].parent = R8A774C0_PD_ALWAYS_ON;
                r8a774c0_areas[7].parent = R8A774C0_PD_3DG_B;
        }

        return 0;
}

const struct rcar_sysc_info r8a774c0_sysc_info __initconst = {
        .init = r8a774c0_sysc_init,
        .areas = r8a774c0_areas,
        .num_areas = ARRAY_SIZE(r8a774c0_areas),
        .extmask_offs = 0x2f8,
        .extmask_val = BIT(0),
};