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c0718df4 PW |
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); |