linux / linux / kernel / git / dhowells / linux-fs / fa4b851b4ad632dc673627f38a8a552547568a2c / . / arch / arm / mach-omap2 / opp2420_data.c

// SPDX-License-Identifier: GPL-2.0 | |

/* | |

* opp2420_data.c - old-style "OPP" table for OMAP2420 | |

* | |

* Copyright (C) 2005-2009 Texas Instruments, Inc. | |

* Copyright (C) 2004-2009 Nokia Corporation | |

* | |

* Richard Woodruff <r-woodruff2@ti.com> | |

* | |

* The OMAP2 processor can be run at several discrete 'PRCM configurations'. | |

* These configurations are characterized by voltage and speed for clocks. | |

* The device is only validated for certain combinations. One way to express | |

* these combinations is via the 'ratios' which the clocks operate with | |

* respect to each other. These ratio sets are for a given voltage/DPLL | |

* setting. All configurations can be described by a DPLL setting and a ratio. | |

* | |

* XXX Missing voltage data. | |

* XXX Missing 19.2MHz sys_clk rate sets (needed for N800/N810) | |

* | |

* THe format described in this file is deprecated. Once a reasonable | |

* OPP API exists, the data in this file should be converted to use it. | |

* | |

* This is technically part of the OMAP2xxx clock code. | |

* | |

* Considerable work is still needed to fully support dynamic frequency | |

* changes on OMAP2xxx-series chips. Readers interested in such a | |

* project are encouraged to review the Maemo Diablo RX-34 and RX-44 | |

* kernel source at: | |

* http://repository.maemo.org/pool/diablo/free/k/kernel-source-diablo/ | |

*/ | |

#include <linux/kernel.h> | |

#include "opp2xxx.h" | |

#include "sdrc.h" | |

#include "clock.h" | |

/* | |

* Key dividers which make up a PRCM set. Ratios for a PRCM are mandated. | |

* xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU, | |

* CM_CLKSEL_DSP, CM_CLKSEL_GFX, CM_CLKSEL1_CORE, CM_CLKSEL1_PLL, | |

* CM_CLKSEL2_PLL, CM_CLKSEL_MDM | |

* | |

* Filling in table based on H4 boards available. There are quite a | |

* few more rate combinations which could be defined. | |

* | |

* When multiple values are defined the start up will try and choose | |

* the fastest one. If a 'fast' value is defined, then automatically, | |

* the /2 one should be included as it can be used. Generally having | |

* more than one fast set does not make sense, as static timings need | |

* to be changed to change the set. The exception is the bypass | |

* setting which is available for low power bypass. | |

* | |

* Note: This table needs to be sorted, fastest to slowest. | |

**/ | |

const struct prcm_config omap2420_rate_table[] = { | |

/* PRCM I - FAST */ | |

{S12M, S660M, S330M, RI_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */ | |

RI_CM_CLKSEL_DSP_VAL, RI_CM_CLKSEL_GFX_VAL, | |

RI_CM_CLKSEL1_CORE_VAL, MI_CM_CLKSEL1_PLL_12_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_165MHz, | |

RATE_IN_242X}, | |

/* PRCM II - FAST */ | |

{S12M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ | |

RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, | |

RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, | |

RATE_IN_242X}, | |

{S13M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ | |

RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, | |

RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, | |

RATE_IN_242X}, | |

/* PRCM III - FAST */ | |

{S12M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ | |

RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, | |

RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, | |

RATE_IN_242X}, | |

{S13M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ | |

RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, | |

RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, | |

RATE_IN_242X}, | |

/* PRCM II - SLOW */ | |

{S12M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ | |

RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, | |

RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, | |

RATE_IN_242X}, | |

{S13M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ | |

RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, | |

RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, | |

RATE_IN_242X}, | |

/* PRCM III - SLOW */ | |

{S12M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ | |

RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, | |

RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, | |

RATE_IN_242X}, | |

{S13M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ | |

RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, | |

RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, | |

RATE_IN_242X}, | |

/* PRCM-VII (boot-bypass) */ | |

{S12M, S12M, S12M, RVII_CM_CLKSEL_MPU_VAL, /* 12MHz ARM*/ | |

RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, | |

RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_12_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, | |

RATE_IN_242X}, | |

/* PRCM-VII (boot-bypass) */ | |

{S13M, S13M, S13M, RVII_CM_CLKSEL_MPU_VAL, /* 13MHz ARM */ | |

RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, | |

RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_13_VAL, | |

MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, | |

RATE_IN_242X}, | |

{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |

}; |