1 /* 2 * OMAP3 voltage domain data 3 * 4 * Copyright (C) 2007, 2010 Texas Instruments, Inc. 5 * Rajendra Nayak <rnayak@ti.com> 6 * Lesly A M <x0080970@ti.com> 7 * Thara Gopinath <thara@ti.com> 8 * 9 * Copyright (C) 2008, 2011 Nokia Corporation 10 * Kalle Jokiniemi 11 * Paul Walmsley 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License version 2 as 15 * published by the Free Software Foundation. 16 */ 17 #include <linux/kernel.h> 18 #include <linux/err.h> 19 #include <linux/init.h> 20 21 #include "soc.h" 22 #include "common.h" 23 #include "prm-regbits-34xx.h" 24 #include "omap_opp_data.h" 25 #include "voltage.h" 26 #include "vc.h" 27 #include "vp.h" 28 29 /* 30 * VDD data 31 */ 32 33 /* OMAP3-common voltagedomain data */ 34 35 static struct voltagedomain omap3_voltdm_wkup = { 36 .name = "wakeup", 37 }; 38 39 /* 34xx/36xx voltagedomain data */ 40 41 static const struct omap_vfsm_instance omap3_vdd1_vfsm = { 42 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET, 43 .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK, 44 }; 45 46 static const struct omap_vfsm_instance omap3_vdd2_vfsm = { 47 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET, 48 .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK, 49 }; 50 51 static struct voltagedomain omap3_voltdm_mpu = { 52 .name = "mpu_iva", 53 .scalable = true, 54 .read = omap3_prm_vcvp_read, 55 .write = omap3_prm_vcvp_write, 56 .rmw = omap3_prm_vcvp_rmw, 57 .vc = &omap3_vc_mpu, 58 .vfsm = &omap3_vdd1_vfsm, 59 .vp = &omap3_vp_mpu, 60 }; 61 62 static struct voltagedomain omap3_voltdm_core = { 63 .name = "core", 64 .scalable = true, 65 .read = omap3_prm_vcvp_read, 66 .write = omap3_prm_vcvp_write, 67 .rmw = omap3_prm_vcvp_rmw, 68 .vc = &omap3_vc_core, 69 .vfsm = &omap3_vdd2_vfsm, 70 .vp = &omap3_vp_core, 71 }; 72 73 static struct voltagedomain *voltagedomains_omap3[] __initdata = { 74 &omap3_voltdm_mpu, 75 &omap3_voltdm_core, 76 &omap3_voltdm_wkup, 77 NULL, 78 }; 79 80 /* AM35xx voltagedomain data */ 81 82 static struct voltagedomain am35xx_voltdm_mpu = { 83 .name = "mpu_iva", 84 }; 85 86 static struct voltagedomain am35xx_voltdm_core = { 87 .name = "core", 88 }; 89 90 static struct voltagedomain *voltagedomains_am35xx[] __initdata = { 91 &am35xx_voltdm_mpu, 92 &am35xx_voltdm_core, 93 &omap3_voltdm_wkup, 94 NULL, 95 }; 96 97 98 static const char *const sys_clk_name __initconst = "sys_ck"; 99 100 void __init omap3xxx_voltagedomains_init(void) 101 { 102 struct voltagedomain *voltdm; 103 struct voltagedomain **voltdms; 104 int i; 105 106 /* 107 * XXX Will depend on the process, validation, and binning 108 * for the currently-running IC 109 */ 110 #ifdef CONFIG_PM_OPP 111 if (cpu_is_omap3630()) { 112 omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data; 113 omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data; 114 } else { 115 omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data; 116 omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data; 117 } 118 #endif 119 120 omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data; 121 omap3_voltdm_core.vp_param = &omap3_core_vp_data; 122 omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data; 123 omap3_voltdm_core.vc_param = &omap3_core_vc_data; 124 125 if (soc_is_am35xx()) 126 voltdms = voltagedomains_am35xx; 127 else 128 voltdms = voltagedomains_omap3; 129 130 for (i = 0; voltdm = voltdms[i], voltdm; i++) 131 voltdm->sys_clk.name = sys_clk_name; 132 133 voltdm_init(voltdms); 134 }; 135