| Paul Walmsley | c0718df | 2011-03-10 22:17:45 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * OMAP3/OMAP4 Voltage Management Routines |
| 3 | * |
| 4 | * Author: Thara Gopinath <thara@ti.com> |
| 5 | * |
| 6 | * Copyright (C) 2007 Texas Instruments, Inc. |
| 7 | * Rajendra Nayak <rnayak@ti.com> |
| 8 | * Lesly A M <x0080970@ti.com> |
| 9 | * |
| 10 | * Copyright (C) 2008 Nokia Corporation |
| 11 | * Kalle Jokiniemi |
| 12 | * |
| 13 | * Copyright (C) 2010 Texas Instruments, Inc. |
| 14 | * Thara Gopinath <thara@ti.com> |
| 15 | * |
| 16 | * This program is free software; you can redistribute it and/or modify |
| 17 | * it under the terms of the GNU General Public License version 2 as |
| 18 | * published by the Free Software Foundation. |
| 19 | */ |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/err.h> |
| 22 | #include <linux/init.h> |
| 23 | |
| 24 | #include <plat/common.h> |
| 25 | |
| 26 | #include "prm-regbits-44xx.h" |
| 27 | #include "prm44xx.h" |
| 28 | #include "prcm44xx.h" |
| 29 | #include "prminst44xx.h" |
| 30 | #include "voltage.h" |
| 31 | #include "omap_opp_data.h" |
| 32 | #include "vc.h" |
| 33 | #include "vp.h" |
| 34 | |
| 35 | static const struct omap_vfsm_instance_data omap4_vdd_mpu_vfsm_data = { |
| 36 | .voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET, |
| 37 | }; |
| 38 | |
| 39 | static struct omap_vdd_info omap4_vdd_mpu_info = { |
| 40 | .vp_data = &omap4_vp_mpu_data, |
| 41 | .vc_data = &omap4_vc_mpu_data, |
| 42 | .vfsm = &omap4_vdd_mpu_vfsm_data, |
| 43 | .voltdm = { |
| 44 | .name = "mpu", |
| 45 | }, |
| 46 | }; |
| 47 | |
| 48 | static const struct omap_vfsm_instance_data omap4_vdd_iva_vfsm_data = { |
| 49 | .voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET, |
| 50 | }; |
| 51 | |
| 52 | static struct omap_vdd_info omap4_vdd_iva_info = { |
| 53 | .vp_data = &omap4_vp_iva_data, |
| 54 | .vc_data = &omap4_vc_iva_data, |
| 55 | .vfsm = &omap4_vdd_iva_vfsm_data, |
| 56 | .voltdm = { |
| 57 | .name = "iva", |
| 58 | }, |
| 59 | }; |
| 60 | |
| 61 | static const struct omap_vfsm_instance_data omap4_vdd_core_vfsm_data = { |
| 62 | .voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET, |
| 63 | }; |
| 64 | |
| 65 | static struct omap_vdd_info omap4_vdd_core_info = { |
| 66 | .vp_data = &omap4_vp_core_data, |
| 67 | .vc_data = &omap4_vc_core_data, |
| 68 | .vfsm = &omap4_vdd_core_vfsm_data, |
| 69 | .voltdm = { |
| 70 | .name = "core", |
| 71 | }, |
| 72 | }; |
| 73 | |
| 74 | /* OMAP4 VDD structures */ |
| 75 | static struct omap_vdd_info *omap4_vdd_info[] = { |
| 76 | &omap4_vdd_mpu_info, |
| 77 | &omap4_vdd_iva_info, |
| 78 | &omap4_vdd_core_info, |
| 79 | }; |
| 80 | |
| 81 | /* OMAP4 specific voltage init functions */ |
| 82 | static int __init omap44xx_voltage_early_init(void) |
| 83 | { |
| 84 | s16 prm_mod = OMAP4430_PRM_DEVICE_INST; |
| 85 | s16 prm_irqst_ocp_mod = OMAP4430_PRM_OCP_SOCKET_INST; |
| 86 | |
| 87 | if (!cpu_is_omap44xx()) |
| 88 | return 0; |
| 89 | |
| 90 | /* |
| 91 | * XXX Will depend on the process, validation, and binning |
| 92 | * for the currently-running IC |
| 93 | */ |
| 94 | omap4_vdd_mpu_info.volt_data = omap44xx_vdd_mpu_volt_data; |
| 95 | omap4_vdd_iva_info.volt_data = omap44xx_vdd_iva_volt_data; |
| 96 | omap4_vdd_core_info.volt_data = omap44xx_vdd_core_volt_data; |
| 97 | |
| 98 | return omap_voltage_early_init(prm_mod, prm_irqst_ocp_mod, |
| 99 | omap4_vdd_info, |
| 100 | ARRAY_SIZE(omap4_vdd_info)); |
| 101 | }; |
| 102 | core_initcall(omap44xx_voltage_early_init); |