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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | // SPDX-License-Identifier: GPL-2.0 /* * OMAP2420 clockdomains * * Copyright (C) 2008-2011 Texas Instruments, Inc. * Copyright (C) 2008-2010 Nokia Corporation * * Paul Walmsley, Jouni Högander * * This file contains clockdomains and clockdomain wakeup dependencies * for OMAP2420 chips. Some notes: * * A useful validation rule for struct clockdomain: Any clockdomain * referenced by a wkdep_srcs must have a dep_bit assigned. So * wkdep_srcs are really just software-controllable dependencies. * Non-software-controllable dependencies do exist, but they are not * encoded below (yet). * * 24xx does not support programmable sleep dependencies (SLEEPDEP) * * The overly-specific dep_bit names are due to a bit name collision * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift * value are the same for all powerdomains: 2 * * XXX should dep_bit be a mask, so we can test to see if it is 0 as a * sanity check? * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE */ /* * To-Do List * -> Port the Sleep/Wakeup dependencies for the domains * from the Power domain framework */ #include <linux/kernel.h> #include <linux/io.h> #include "soc.h" #include "clockdomain.h" #include "prm2xxx_3xxx.h" #include "cm2xxx_3xxx.h" #include "cm-regbits-24xx.h" #include "prm-regbits-24xx.h" /* * Clockdomain dependencies for wkdeps * * XXX Hardware dependencies (e.g., dependencies that cannot be * changed in software) are not included here yet, but should be. */ /* Wakeup dependency source arrays */ /* 2420-specific possible wakeup dependencies */ /* 2420 PM_WKDEP_MPU: CORE, DSP, WKUP */ static struct clkdm_dep mpu_2420_wkdeps[] = { { .clkdm_name = "core_l3_clkdm" }, { .clkdm_name = "core_l4_clkdm" }, { .clkdm_name = "dsp_clkdm" }, { .clkdm_name = "wkup_clkdm" }, { NULL }, }; /* 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP */ static struct clkdm_dep core_2420_wkdeps[] = { { .clkdm_name = "dsp_clkdm" }, { .clkdm_name = "gfx_clkdm" }, { .clkdm_name = "mpu_clkdm" }, { .clkdm_name = "wkup_clkdm" }, { NULL }, }; /* * 2420-only clockdomains */ static struct clockdomain mpu_2420_clkdm = { .name = "mpu_clkdm", .pwrdm = { .name = "mpu_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .wkdep_srcs = mpu_2420_wkdeps, .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, }; static struct clockdomain iva1_2420_clkdm = { .name = "iva1_clkdm", .pwrdm = { .name = "dsp_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT, .wkdep_srcs = dsp_24xx_wkdeps, .clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK, }; static struct clockdomain dsp_2420_clkdm = { .name = "dsp_clkdm", .pwrdm = { .name = "dsp_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK, }; static struct clockdomain gfx_2420_clkdm = { .name = "gfx_clkdm", .pwrdm = { .name = "gfx_pwrdm" }, .flags = CLKDM_CAN_HWSUP_SWSUP, .wkdep_srcs = gfx_24xx_wkdeps, .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK, }; static struct clockdomain core_l3_2420_clkdm = { .name = "core_l3_clkdm", .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .wkdep_srcs = core_2420_wkdeps, .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK, }; static struct clockdomain core_l4_2420_clkdm = { .name = "core_l4_clkdm", .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .wkdep_srcs = core_2420_wkdeps, .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK, }; static struct clockdomain dss_2420_clkdm = { .name = "dss_clkdm", .pwrdm = { .name = "core_pwrdm" }, .flags = CLKDM_CAN_HWSUP, .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK, }; static struct clockdomain *clockdomains_omap242x[] __initdata = { &wkup_common_clkdm, &mpu_2420_clkdm, &iva1_2420_clkdm, &dsp_2420_clkdm, &gfx_2420_clkdm, &core_l3_2420_clkdm, &core_l4_2420_clkdm, &dss_2420_clkdm, NULL, }; void __init omap242x_clockdomains_init(void) { if (!cpu_is_omap242x()) return; clkdm_register_platform_funcs(&omap2_clkdm_operations); clkdm_register_clkdms(clockdomains_omap242x); clkdm_complete_init(); } |