ca6eccb31e
Revise some of the comments in the OMAP2xxx OPP data for clarity. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Richard Woodruff <r-woodruff2@ti.com>
128 lines
4.9 KiB
C
128 lines
4.9 KiB
C
/*
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* opp2420_data.c - old-style "OPP" table for OMAP2420
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*
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* Copyright (C) 2005-2009 Texas Instruments, Inc.
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* Copyright (C) 2004-2009 Nokia Corporation
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*
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* Richard Woodruff <r-woodruff2@ti.com>
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*
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* The OMAP2 processor can be run at several discrete 'PRCM configurations'.
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* These configurations are characterized by voltage and speed for clocks.
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* The device is only validated for certain combinations. One way to express
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* these combinations is via the 'ratios' which the clocks operate with
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* respect to each other. These ratio sets are for a given voltage/DPLL
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* setting. All configurations can be described by a DPLL setting and a ratio.
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*
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* XXX Missing voltage data.
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* XXX Missing 19.2MHz sys_clk rate sets (needed for N800/N810)
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*
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* THe format described in this file is deprecated. Once a reasonable
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* OPP API exists, the data in this file should be converted to use it.
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*
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* This is technically part of the OMAP2xxx clock code.
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*
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* Considerable work is still needed to fully support dynamic frequency
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* changes on OMAP2xxx-series chips. Readers interested in such a
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* project are encouraged to review the Maemo Diablo RX-34 and RX-44
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* kernel source at:
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* http://repository.maemo.org/pool/diablo/free/k/kernel-source-diablo/
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*/
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#include "opp2xxx.h"
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#include "sdrc.h"
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#include "clock.h"
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/*
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* Key dividers which make up a PRCM set. Ratios for a PRCM are mandated.
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* xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU,
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* CM_CLKSEL_DSP, CM_CLKSEL_GFX, CM_CLKSEL1_CORE, CM_CLKSEL1_PLL,
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* CM_CLKSEL2_PLL, CM_CLKSEL_MDM
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*
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* Filling in table based on H4 boards available. There are quite a
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* few more rate combinations which could be defined.
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*
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* When multiple values are defined the start up will try and choose
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* the fastest one. If a 'fast' value is defined, then automatically,
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* the /2 one should be included as it can be used. Generally having
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* more than one fast set does not make sense, as static timings need
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* to be changed to change the set. The exception is the bypass
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* setting which is available for low power bypass.
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*
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* Note: This table needs to be sorted, fastest to slowest.
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**/
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const struct prcm_config omap2420_rate_table[] = {
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/* PRCM I - FAST */
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{S12M, S660M, S330M, RI_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */
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RI_CM_CLKSEL_DSP_VAL, RI_CM_CLKSEL_GFX_VAL,
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RI_CM_CLKSEL1_CORE_VAL, MI_CM_CLKSEL1_PLL_12_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_165MHz,
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RATE_IN_242X},
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/* PRCM II - FAST */
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{S12M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */
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RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL,
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RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz,
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RATE_IN_242X},
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{S13M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */
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RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL,
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RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz,
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RATE_IN_242X},
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/* PRCM III - FAST */
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{S12M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */
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RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL,
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RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz,
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RATE_IN_242X},
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{S13M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */
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RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL,
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RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz,
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RATE_IN_242X},
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/* PRCM II - SLOW */
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{S12M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */
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RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL,
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RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz,
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RATE_IN_242X},
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{S13M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */
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RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL,
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RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz,
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RATE_IN_242X},
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/* PRCM III - SLOW */
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{S12M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */
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RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL,
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RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz,
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RATE_IN_242X},
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{S13M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */
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RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL,
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RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz,
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RATE_IN_242X},
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/* PRCM-VII (boot-bypass) */
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{S12M, S12M, S12M, RVII_CM_CLKSEL_MPU_VAL, /* 12MHz ARM*/
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RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL,
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RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_12_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS,
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RATE_IN_242X},
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/* PRCM-VII (boot-bypass) */
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{S13M, S13M, S13M, RVII_CM_CLKSEL_MPU_VAL, /* 13MHz ARM */
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RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL,
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RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_13_VAL,
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MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS,
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RATE_IN_242X},
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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};
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