1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * opp2420_data.c - old-style "OPP" table for OMAP2420 |
4 | * |
5 | * Copyright (C) 2005-2009 Texas Instruments, Inc. |
6 | * Copyright (C) 2004-2009 Nokia Corporation |
7 | * |
8 | * Richard Woodruff <r-woodruff2@ti.com> |
9 | * |
10 | * The OMAP2 processor can be run at several discrete 'PRCM configurations'. |
11 | * These configurations are characterized by voltage and speed for clocks. |
12 | * The device is only validated for certain combinations. One way to express |
13 | * these combinations is via the 'ratios' which the clocks operate with |
14 | * respect to each other. These ratio sets are for a given voltage/DPLL |
15 | * setting. All configurations can be described by a DPLL setting and a ratio. |
16 | * |
17 | * XXX Missing voltage data. |
18 | * XXX Missing 19.2MHz sys_clk rate sets (needed for N800/N810) |
19 | * |
20 | * THe format described in this file is deprecated. Once a reasonable |
21 | * OPP API exists, the data in this file should be converted to use it. |
22 | * |
23 | * This is technically part of the OMAP2xxx clock code. |
24 | * |
25 | * Considerable work is still needed to fully support dynamic frequency |
26 | * changes on OMAP2xxx-series chips. Readers interested in such a |
27 | * project are encouraged to review the Maemo Diablo RX-34 and RX-44 |
28 | * kernel source at: |
29 | * http://repository.maemo.org/pool/diablo/free/k/kernel-source-diablo/ |
30 | */ |
31 | |
32 | #include <linux/kernel.h> |
33 | |
34 | #include "opp2xxx.h" |
35 | #include "sdrc.h" |
36 | #include "clock.h" |
37 | |
38 | /* |
39 | * Key dividers which make up a PRCM set. Ratios for a PRCM are mandated. |
40 | * xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU, |
41 | * CM_CLKSEL_DSP, CM_CLKSEL_GFX, CM_CLKSEL1_CORE, CM_CLKSEL1_PLL, |
42 | * CM_CLKSEL2_PLL, CM_CLKSEL_MDM |
43 | * |
44 | * Filling in table based on H4 boards available. There are quite a |
45 | * few more rate combinations which could be defined. |
46 | * |
47 | * When multiple values are defined the start up will try and choose |
48 | * the fastest one. If a 'fast' value is defined, then automatically, |
49 | * the /2 one should be included as it can be used. Generally having |
50 | * more than one fast set does not make sense, as static timings need |
51 | * to be changed to change the set. The exception is the bypass |
52 | * setting which is available for low power bypass. |
53 | * |
54 | * Note: This table needs to be sorted, fastest to slowest. |
55 | **/ |
56 | const struct prcm_config omap2420_rate_table[] = { |
57 | /* PRCM I - FAST */ |
58 | {S12M, S660M, S330M, RI_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */ |
59 | RI_CM_CLKSEL_DSP_VAL, RI_CM_CLKSEL_GFX_VAL, |
60 | RI_CM_CLKSEL1_CORE_VAL, MI_CM_CLKSEL1_PLL_12_VAL, |
61 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_165MHz, |
62 | RATE_IN_242X}, |
63 | |
64 | /* PRCM II - FAST */ |
65 | {S12M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ |
66 | RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, |
67 | RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, |
68 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, |
69 | RATE_IN_242X}, |
70 | |
71 | {S13M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ |
72 | RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, |
73 | RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, |
74 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, |
75 | RATE_IN_242X}, |
76 | |
77 | /* PRCM III - FAST */ |
78 | {S12M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ |
79 | RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, |
80 | RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, |
81 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, |
82 | RATE_IN_242X}, |
83 | |
84 | {S13M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ |
85 | RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, |
86 | RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, |
87 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, |
88 | RATE_IN_242X}, |
89 | |
90 | /* PRCM II - SLOW */ |
91 | {S12M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ |
92 | RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, |
93 | RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, |
94 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, |
95 | RATE_IN_242X}, |
96 | |
97 | {S13M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ |
98 | RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, |
99 | RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, |
100 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, |
101 | RATE_IN_242X}, |
102 | |
103 | /* PRCM III - SLOW */ |
104 | {S12M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ |
105 | RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, |
106 | RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, |
107 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, |
108 | RATE_IN_242X}, |
109 | |
110 | {S13M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ |
111 | RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, |
112 | RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, |
113 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, |
114 | RATE_IN_242X}, |
115 | |
116 | /* PRCM-VII (boot-bypass) */ |
117 | {S12M, S12M, S12M, RVII_CM_CLKSEL_MPU_VAL, /* 12MHz ARM*/ |
118 | RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, |
119 | RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_12_VAL, |
120 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, |
121 | RATE_IN_242X}, |
122 | |
123 | /* PRCM-VII (boot-bypass) */ |
124 | {S13M, S13M, S13M, RVII_CM_CLKSEL_MPU_VAL, /* 13MHz ARM */ |
125 | RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, |
126 | RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_13_VAL, |
127 | MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, |
128 | RATE_IN_242X}, |
129 | |
130 | { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
131 | }; |
132 | |