1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Renesas R-Car H3 System Controller 4 * 5 * Copyright (C) 2016-2017 Glider bvba 6 */ 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 16 static 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 revisions 53 */ 54 55 #define NO_EXTMASK BIT(1) /* Missing SYSCEXTMASK register */ 56 57 static 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 65 static 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 80 struct 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