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 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