diff options
Diffstat (limited to 'arch/arm/mach-omap2/opp2420_data.c')
| -rw-r--r-- | arch/arm/mach-omap2/opp2420_data.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/opp2420_data.c b/arch/arm/mach-omap2/opp2420_data.c new file mode 100644 index 000000000..18a448f93 --- /dev/null +++ b/arch/arm/mach-omap2/opp2420_data.c @@ -0,0 +1,131 @@ +// 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}, +}; |