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// 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/bug.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 },
};
static void __init rcar_sysc_fix_parent(struct rcar_sysc_area *areas,
unsigned int num_areas, u8 id,
int new_parent)
{
unsigned int i;
for (i = 0; i < num_areas; i++)
if (areas[i].isr_bit == id) {
areas[i].parent = new_parent;
return;
}
}
/* 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)) {
rcar_sysc_fix_parent(r8a774c0_areas,
ARRAY_SIZE(r8a774c0_areas),
R8A774C0_PD_3DG_A, R8A774C0_PD_3DG_B);
rcar_sysc_fix_parent(r8a774c0_areas,
ARRAY_SIZE(r8a774c0_areas),
R8A774C0_PD_3DG_B, R8A774C0_PD_ALWAYS_ON);
}
return 0;
}
const struct rcar_sysc_info r8a774c0_sysc_info __initconst = {
.init = r8a774c0_sysc_init,
.areas = r8a774c0_areas,
.num_areas = ARRAY_SIZE(r8a774c0_areas),
};
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