1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Renesas R-Car E3 System Controller 4 * 5 * Copyright (C) 2018 Renesas Electronics Corp. 6 */ 7 8 #include <linux/bits.h> 9 #include <linux/kernel.h> 10 #include <linux/sys_soc.h> 11 12 #include <dt-bindings/power/r8a77990-sysc.h> 13 14 #include "rcar-sysc.h" 15 16 static struct rcar_sysc_area r8a77990_areas[] __initdata = { 17 { "always-on", 0, 0, R8A77990_PD_ALWAYS_ON, -1, PD_ALWAYS_ON }, 18 { "ca53-scu", 0x140, 0, R8A77990_PD_CA53_SCU, R8A77990_PD_ALWAYS_ON, 19 PD_SCU }, 20 { "ca53-cpu0", 0x200, 0, R8A77990_PD_CA53_CPU0, R8A77990_PD_CA53_SCU, 21 PD_CPU_NOCR }, 22 { "ca53-cpu1", 0x200, 1, R8A77990_PD_CA53_CPU1, R8A77990_PD_CA53_SCU, 23 PD_CPU_NOCR }, 24 { "cr7", 0x240, 0, R8A77990_PD_CR7, R8A77990_PD_ALWAYS_ON }, 25 { "a3vc", 0x380, 0, R8A77990_PD_A3VC, R8A77990_PD_ALWAYS_ON }, 26 { "a2vc1", 0x3c0, 1, R8A77990_PD_A2VC1, R8A77990_PD_A3VC }, 27 { "3dg-a", 0x100, 0, R8A77990_PD_3DG_A, R8A77990_PD_ALWAYS_ON }, 28 { "3dg-b", 0x100, 1, R8A77990_PD_3DG_B, R8A77990_PD_3DG_A }, 29 }; 30 31 /* Fixups for R-Car E3 ES1.0 revision */ 32 static const struct soc_device_attribute r8a77990[] __initconst = { 33 { .soc_id = "r8a77990", .revision = "ES1.0" }, 34 { /* sentinel */ } 35 }; 36 37 static int __init r8a77990_sysc_init(void) 38 { 39 if (soc_device_match(r8a77990)) { 40 /* Fix incorrect 3DG hierarchy */ 41 swap(r8a77990_areas[7], r8a77990_areas[8]); 42 r8a77990_areas[7].parent = R8A77990_PD_ALWAYS_ON; 43 r8a77990_areas[8].parent = R8A77990_PD_3DG_B; 44 } 45 46 return 0; 47 } 48 49 const struct rcar_sysc_info r8a77990_sysc_info __initconst = { 50 .init = r8a77990_sysc_init, 51 .areas = r8a77990_areas, 52 .num_areas = ARRAY_SIZE(r8a77990_areas), 53 .extmask_offs = 0x2f8, 54 .extmask_val = BIT(0), 55 }; 56