87 lines · c
1// SPDX-License-Identifier: GPL-2.02/*3 * Renesas R-Car H3 System Controller4 *5 * Copyright (C) 2016-2017 Glider bvba6 */7 8#include <linux/bits.h>9#include <linux/kernel.h>10#include <linux/sys_soc.h>11 12#include <dt-bindings/power/r8a7795-sysc.h>13 14#include "rcar-sysc.h"15 16static struct rcar_sysc_area r8a7795_areas[] __initdata = {17 { "always-on", 0, 0, R8A7795_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },18 { "ca57-scu", 0x1c0, 0, R8A7795_PD_CA57_SCU, R8A7795_PD_ALWAYS_ON,19 PD_SCU },20 { "ca57-cpu0", 0x80, 0, R8A7795_PD_CA57_CPU0, R8A7795_PD_CA57_SCU,21 PD_CPU_NOCR },22 { "ca57-cpu1", 0x80, 1, R8A7795_PD_CA57_CPU1, R8A7795_PD_CA57_SCU,23 PD_CPU_NOCR },24 { "ca57-cpu2", 0x80, 2, R8A7795_PD_CA57_CPU2, R8A7795_PD_CA57_SCU,25 PD_CPU_NOCR },26 { "ca57-cpu3", 0x80, 3, R8A7795_PD_CA57_CPU3, R8A7795_PD_CA57_SCU,27 PD_CPU_NOCR },28 { "ca53-scu", 0x140, 0, R8A7795_PD_CA53_SCU, R8A7795_PD_ALWAYS_ON,29 PD_SCU },30 { "ca53-cpu0", 0x200, 0, R8A7795_PD_CA53_CPU0, R8A7795_PD_CA53_SCU,31 PD_CPU_NOCR },32 { "ca53-cpu1", 0x200, 1, R8A7795_PD_CA53_CPU1, R8A7795_PD_CA53_SCU,33 PD_CPU_NOCR },34 { "ca53-cpu2", 0x200, 2, R8A7795_PD_CA53_CPU2, R8A7795_PD_CA53_SCU,35 PD_CPU_NOCR },36 { "ca53-cpu3", 0x200, 3, R8A7795_PD_CA53_CPU3, R8A7795_PD_CA53_SCU,37 PD_CPU_NOCR },38 { "a3vp", 0x340, 0, R8A7795_PD_A3VP, R8A7795_PD_ALWAYS_ON },39 { "cr7", 0x240, 0, R8A7795_PD_CR7, R8A7795_PD_ALWAYS_ON },40 { "a3vc", 0x380, 0, R8A7795_PD_A3VC, R8A7795_PD_ALWAYS_ON },41 { "a2vc1", 0x3c0, 1, R8A7795_PD_A2VC1, R8A7795_PD_A3VC },42 { "3dg-a", 0x100, 0, R8A7795_PD_3DG_A, R8A7795_PD_ALWAYS_ON },43 { "3dg-b", 0x100, 1, R8A7795_PD_3DG_B, R8A7795_PD_3DG_A },44 { "3dg-c", 0x100, 2, R8A7795_PD_3DG_C, R8A7795_PD_3DG_B },45 { "3dg-d", 0x100, 3, R8A7795_PD_3DG_D, R8A7795_PD_3DG_C },46 { "3dg-e", 0x100, 4, R8A7795_PD_3DG_E, R8A7795_PD_3DG_D },47 { "a3ir", 0x180, 0, R8A7795_PD_A3IR, R8A7795_PD_ALWAYS_ON },48};49 50 51 /*52 * Fixups for R-Car H3 revisions53 */54 55#define NO_EXTMASK BIT(1) /* Missing SYSCEXTMASK register */56 57static const struct soc_device_attribute r8a7795_quirks_match[] __initconst = {58 {59 .soc_id = "r8a7795", .revision = "ES2.*",60 .data = (void *)(NO_EXTMASK),61 },62 { /* sentinel */ }63};64 65static int __init r8a7795_sysc_init(void)66{67 const struct soc_device_attribute *attr;68 u32 quirks = 0;69 70 attr = soc_device_match(r8a7795_quirks_match);71 if (attr)72 quirks = (uintptr_t)attr->data;73 74 if (quirks & NO_EXTMASK)75 r8a7795_sysc_info.extmask_val = 0;76 77 return 0;78}79 80struct rcar_sysc_info r8a7795_sysc_info __initdata = {81 .init = r8a7795_sysc_init,82 .areas = r8a7795_areas,83 .num_areas = ARRAY_SIZE(r8a7795_areas),84 .extmask_offs = 0x2f8,85 .extmask_val = BIT(0),86};87