1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * OMAP3 voltage domain data 4 * 5 * Copyright (C) 2007, 2010 Texas Instruments, Inc. 6 * Rajendra Nayak <rnayak@ti.com> 7 * Lesly A M <x0080970@ti.com> 8 * Thara Gopinath <thara@ti.com> 9 * 10 * Copyright (C) 2008, 2011 Nokia Corporation 11 * Kalle Jokiniemi 12 * Paul Walmsley 13 */ 14 #include <linux/kernel.h> 15 #include <linux/err.h> 16 #include <linux/init.h> 17 18 #include "soc.h" 19 #include "common.h" 20 #include "prm-regbits-34xx.h" 21 #include "omap_opp_data.h" 22 #include "voltage.h" 23 #include "vc.h" 24 #include "vp.h" 25 26 /* 27 * VDD data 28 */ 29 30 /* OMAP3-common voltagedomain data */ 31 32 static struct voltagedomain omap3_voltdm_wkup = { 33 .name = "wakeup", 34 }; 35 36 /* 34xx/36xx voltagedomain data */ 37 38 static const struct omap_vfsm_instance omap3_vdd1_vfsm = { 39 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET, 40 .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK, 41 }; 42 43 static const struct omap_vfsm_instance omap3_vdd2_vfsm = { 44 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET, 45 .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK, 46 }; 47 48 static struct voltagedomain omap3_voltdm_mpu = { 49 .name = "mpu_iva", 50 .scalable = true, 51 .read = omap3_prm_vcvp_read, 52 .write = omap3_prm_vcvp_write, 53 .rmw = omap3_prm_vcvp_rmw, 54 .vc = &omap3_vc_mpu, 55 .vfsm = &omap3_vdd1_vfsm, 56 .vp = &omap3_vp_mpu, 57 }; 58 59 static struct voltagedomain omap3_voltdm_core = { 60 .name = "core", 61 .scalable = true, 62 .read = omap3_prm_vcvp_read, 63 .write = omap3_prm_vcvp_write, 64 .rmw = omap3_prm_vcvp_rmw, 65 .vc = &omap3_vc_core, 66 .vfsm = &omap3_vdd2_vfsm, 67 .vp = &omap3_vp_core, 68 }; 69 70 static struct voltagedomain *voltagedomains_omap3[] __initdata = { 71 &omap3_voltdm_mpu, 72 &omap3_voltdm_core, 73 &omap3_voltdm_wkup, 74 NULL, 75 }; 76 77 /* AM35xx voltagedomain data */ 78 79 static struct voltagedomain am35xx_voltdm_mpu = { 80 .name = "mpu_iva", 81 }; 82 83 static struct voltagedomain am35xx_voltdm_core = { 84 .name = "core", 85 }; 86 87 static struct voltagedomain *voltagedomains_am35xx[] __initdata = { 88 &am35xx_voltdm_mpu, 89 &am35xx_voltdm_core, 90 &omap3_voltdm_wkup, 91 NULL, 92 }; 93 94 95 static const char *const sys_clk_name __initconst = "sys_ck"; 96 97 void __init omap3xxx_voltagedomains_init(void) 98 { 99 struct voltagedomain *voltdm; 100 struct voltagedomain **voltdms; 101 int i; 102 103 /* 104 * XXX Will depend on the process, validation, and binning 105 * for the currently-running IC 106 */ 107 #ifdef CONFIG_PM_OPP 108 if (cpu_is_omap3630()) { 109 omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data; 110 omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data; 111 } else { 112 omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data; 113 omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data; 114 } 115 #endif 116 117 omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data; 118 omap3_voltdm_core.vp_param = &omap3_core_vp_data; 119 omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data; 120 omap3_voltdm_core.vc_param = &omap3_core_vc_data; 121 122 if (soc_is_am35xx()) 123 voltdms = voltagedomains_am35xx; 124 else 125 voltdms = voltagedomains_omap3; 126 127 for (i = 0; voltdm = voltdms[i], voltdm; i++) 128 voltdm->sys_clk.name = sys_clk_name; 129 130 voltdm_init(voltdms); 131 }; 132
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