kernel/arch/arm/mach-omap2/opp2430_data.c

   1 /*
   2  * opp2430_data.c - old-style "OPP" table for OMAP2430
   3  *
   4  * Copyright (C) 2005-2009 Texas Instruments, Inc.
   5  * Copyright (C) 2004-2009 Nokia Corporation
   6  *
   7  * Richard Woodruff <r-woodruff2@ti.com>
   8  *
   9  * The OMAP2 processor can be run at several discrete 'PRCM configurations'.
  10  * These configurations are characterized by voltage and speed for clocks.
  11  * The device is only validated for certain combinations. One way to express
  12  * these combinations is via the 'ratios' which the clocks operate with
  13  * respect to each other. These ratio sets are for a given voltage/DPLL
  14  * setting. All configurations can be described by a DPLL setting and a ratio.
  15  *
  16  * 2430 differs from 2420 in that there are no more phase synchronizers used.
  17  * They both have a slightly different clock domain setup. 2420(iva1,dsp) vs
  18  * 2430 (iva2.1, NOdsp, mdm)
  19  *
  20  * XXX Missing voltage data.
  21  * XXX Missing 19.2MHz sys_clk rate sets.
  22  *
  23  * THe format described in this file is deprecated.  Once a reasonable
  24  * OPP API exists, the data in this file should be converted to use it.
  25  *
  26  * This is technically part of the OMAP2xxx clock code.
  27  */
  28
  29 #include <linux/kernel.h>
  30
  31 #include "opp2xxx.h"
  32 #include "sdrc.h"
  33 #include "clock.h"
  34
  35 /*
  36  * Key dividers which make up a PRCM set. Ratios for a PRCM are mandated.
  37  * xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU,
  38  * CM_CLKSEL_DSP, CM_CLKSEL_GFX, CM_CLKSEL1_CORE, CM_CLKSEL1_PLL,
  39  * CM_CLKSEL2_PLL, CM_CLKSEL_MDM
  40  *
  41  * Filling in table based on 2430-SDPs variants available.  There are
  42  * quite a few more rate combinations which could be defined.
  43  *
  44  * When multiple values are defined the start up will try and choose
  45  * the fastest one. If a 'fast' value is defined, then automatically,
  46  * the /2 one should be included as it can be used.  Generally having
  47  * more than one fast set does not make sense, as static timings need
  48  * to be changed to change the set.  The exception is the bypass
  49  * setting which is available for low power bypass.
  50  *
  51  * Note: This table needs to be sorted, fastest to slowest.
  52  */
  53 const struct prcm_config omap2430_rate_table[] = {
  54         /* PRCM #4 - ratio2 (ES2.1) - FAST */
  55         {S13M, S798M, S399M, R2_CM_CLKSEL_MPU_VAL,              /* 399MHz ARM */
  56                 R2_CM_CLKSEL_DSP_VAL, R2_CM_CLKSEL_GFX_VAL,
  57                 R2_CM_CLKSEL1_CORE_VAL, M4_CM_CLKSEL1_PLL_13_VAL,
  58                 MX_CLKSEL2_PLL_2x_VAL, R2_CM_CLKSEL_MDM_VAL,
  59                 SDRC_RFR_CTRL_133MHz,
  60                 RATE_IN_243X},
  61
  62         /* PRCM #2 - ratio1 (ES2) - FAST */
  63         {S13M, S658M, S329M, R1_CM_CLKSEL_MPU_VAL,              /* 330MHz ARM */
  64                 R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL,
  65                 R1_CM_CLKSEL1_CORE_VAL, M2_CM_CLKSEL1_PLL_13_VAL,
  66                 MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL,
  67                 SDRC_RFR_CTRL_165MHz,
  68                 RATE_IN_243X},
  69
  70         /* PRCM #5a - ratio1 - FAST */
  71         {S13M, S532M, S266M, R1_CM_CLKSEL_MPU_VAL,              /* 266MHz ARM */
  72                 R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL,
  73                 R1_CM_CLKSEL1_CORE_VAL, M5A_CM_CLKSEL1_PLL_13_VAL,
  74                 MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL,
  75                 SDRC_RFR_CTRL_133MHz,
  76                 RATE_IN_243X},
  77
  78         /* PRCM #5b - ratio1 - FAST */
  79         {S13M, S400M, S200M, R1_CM_CLKSEL_MPU_VAL,              /* 200MHz ARM */
  80                 R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL,
  81                 R1_CM_CLKSEL1_CORE_VAL, M5B_CM_CLKSEL1_PLL_13_VAL,
  82                 MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL,
  83                 SDRC_RFR_CTRL_100MHz,
  84                 RATE_IN_243X},
  85
  86         /* PRCM #4 - ratio1 (ES2.1) - SLOW */
  87         {S13M, S399M, S199M, R2_CM_CLKSEL_MPU_VAL,              /* 200MHz ARM */
  88                 R2_CM_CLKSEL_DSP_VAL, R2_CM_CLKSEL_GFX_VAL,
  89                 R2_CM_CLKSEL1_CORE_VAL, M4_CM_CLKSEL1_PLL_13_VAL,
  90                 MX_CLKSEL2_PLL_1x_VAL, R2_CM_CLKSEL_MDM_VAL,
  91                 SDRC_RFR_CTRL_133MHz,
  92                 RATE_IN_243X},
  93
  94         /* PRCM #2 - ratio1 (ES2) - SLOW */
  95         {S13M, S329M, S164M, R1_CM_CLKSEL_MPU_VAL,              /* 165MHz ARM */
  96                 R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL,
  97                 R1_CM_CLKSEL1_CORE_VAL, M2_CM_CLKSEL1_PLL_13_VAL,
  98                 MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL,
  99                 SDRC_RFR_CTRL_165MHz,
 100                 RATE_IN_243X},
 101
 102         /* PRCM #5a - ratio1 - SLOW */
 103         {S13M, S266M, S133M, R1_CM_CLKSEL_MPU_VAL,              /* 133MHz ARM */
 104                 R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL,
 105                 R1_CM_CLKSEL1_CORE_VAL, M5A_CM_CLKSEL1_PLL_13_VAL,
 106                 MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL,
 107                 SDRC_RFR_CTRL_133MHz,
 108                 RATE_IN_243X},
 109
 110         /* PRCM #5b - ratio1 - SLOW*/
 111         {S13M, S200M, S100M, R1_CM_CLKSEL_MPU_VAL,              /* 100MHz ARM */
 112                 R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL,
 113                 R1_CM_CLKSEL1_CORE_VAL, M5B_CM_CLKSEL1_PLL_13_VAL,
 114                 MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL,
 115                 SDRC_RFR_CTRL_100MHz,
 116                 RATE_IN_243X},
 117
 118         /* PRCM-boot/bypass */
 119         {S13M, S13M, S13M, RB_CM_CLKSEL_MPU_VAL,                /* 13Mhz */
 120                 RB_CM_CLKSEL_DSP_VAL, RB_CM_CLKSEL_GFX_VAL,
 121                 RB_CM_CLKSEL1_CORE_VAL, MB_CM_CLKSEL1_PLL_13_VAL,
 122                 MX_CLKSEL2_PLL_2x_VAL, RB_CM_CLKSEL_MDM_VAL,
 123                 SDRC_RFR_CTRL_BYPASS,
 124                 RATE_IN_243X},
 125
 126         /* PRCM-boot/bypass */
 127         {S12M, S12M, S12M, RB_CM_CLKSEL_MPU_VAL,                /* 12Mhz */
 128                 RB_CM_CLKSEL_DSP_VAL, RB_CM_CLKSEL_GFX_VAL,
 129                 RB_CM_CLKSEL1_CORE_VAL, MB_CM_CLKSEL1_PLL_12_VAL,
 130                 MX_CLKSEL2_PLL_2x_VAL, RB_CM_CLKSEL_MDM_VAL,
 131                 SDRC_RFR_CTRL_BYPASS,
 132                 RATE_IN_243X},
 133
 134         { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 135 };