1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Renesas RZ/G2E System Controller
4 * Copyright (C) 2018 Renesas Electronics Corp.
5 *
6 * Based on Renesas R-Car E3 System Controller
7 */
8
9 #include <linux/bits.h>
10 #include <linux/kernel.h>
11 #include <linux/sys_soc.h>
12
13 #include <dt-bindings/power/r8a774c0-sysc.h>
14
15 #include "rcar-sysc.h"
16
17 static struct rcar_sysc_area r8a774c0_areas[] __initdata = {
18 { "always-on", 0, 0, R8A774C0_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
19 { "ca53-scu", 0x140, 0, R8A774C0_PD_CA53_SCU, R8A774C0_PD_ALWAYS_ON,
20 PD_SCU },
21 { "ca53-cpu0", 0x200, 0, R8A774C0_PD_CA53_CPU0, R8A774C0_PD_CA53_SCU,
22 PD_CPU_NOCR },
23 { "ca53-cpu1", 0x200, 1, R8A774C0_PD_CA53_CPU1, R8A774C0_PD_CA53_SCU,
24 PD_CPU_NOCR },
25 { "a3vc", 0x380, 0, R8A774C0_PD_A3VC, R8A774C0_PD_ALWAYS_ON },
26 { "a2vc1", 0x3c0, 1, R8A774C0_PD_A2VC1, R8A774C0_PD_A3VC },
27 { "3dg-a", 0x100, 0, R8A774C0_PD_3DG_A, R8A774C0_PD_ALWAYS_ON },
28 { "3dg-b", 0x100, 1, R8A774C0_PD_3DG_B, R8A774C0_PD_3DG_A },
29 };
30
31 /* Fixups for RZ/G2E ES1.0 revision */
32 static const struct soc_device_attribute r8a774c0[] __initconst = {
33 { .soc_id = "r8a774c0", .revision = "ES1.0" },
34 { /* sentinel */ }
35 };
36
r8a774c0_sysc_init(void)37 static int __init r8a774c0_sysc_init(void)
38 {
39 if (soc_device_match(r8a774c0)) {
40 /* Fix incorrect 3DG hierarchy */
41 swap(r8a774c0_areas[6], r8a774c0_areas[7]);
42 r8a774c0_areas[6].parent = R8A774C0_PD_ALWAYS_ON;
43 r8a774c0_areas[7].parent = R8A774C0_PD_3DG_B;
44 }
45
46 return 0;
47 }
48
49 const struct rcar_sysc_info r8a774c0_sysc_info __initconst = {
50 .init = r8a774c0_sysc_init,
51 .areas = r8a774c0_areas,
52 .num_areas = ARRAY_SIZE(r8a774c0_areas),
53 .extmask_offs = 0x2f8,
54 .extmask_val = BIT(0),
55 };
56