Add support for: 1. DPLL locking 2. Initialization of clock domains and clock modules 3. Setting up the right voltage on voltage rails
This work draws upon previous work done for x-loader by: Santosh Shilimkar santosh.shilimkar@ti.com Rajendra Nayak rnayak@ti.com
Signed-off-by: Aneesh V aneesh@ti.com --- V2: * Use pre-calculated M & N values instead of calculated ones * Changes due to make file changes * Some corrections * Do all clock initialization in SPL itself instead of differing some work to u-boot
V3: * Use struct for register addressing * Support only Turbo OPP for MPU. OPP's above this need Smart Reflex enabled * Cleaned up the scale_vcore(). Now takes into account the differing voltage offsets for different revisions of Phoenix. * Removed references to deprecated utility functions - modify_reg_32() etc. * Changed all spl_debug() to debug() * Moved the host-program for calculating DPLL multiplier/divider to tools/omap/ directory. Added more documentation * Replaced calls to omap4_revision() with omap_revision() * Some changes to IVA and ABE dpll locking code --- arch/arm/cpu/armv7/omap4/Makefile | 1 + arch/arm/cpu/armv7/omap4/board.c | 1 + arch/arm/cpu/armv7/omap4/clocks.c | 809 +++++++++++++++++++++++++++ arch/arm/include/asm/arch-omap4/clocks.h | 664 ++++++++++++++++++++++ arch/arm/include/asm/arch-omap4/sys_proto.h | 8 + arch/arm/include/asm/omap_common.h | 3 + tools/omap/clocks_get_m_n.c | 197 +++++++ 7 files changed, 1683 insertions(+), 0 deletions(-) create mode 100644 arch/arm/cpu/armv7/omap4/clocks.c create mode 100644 arch/arm/include/asm/arch-omap4/clocks.h create mode 100644 tools/omap/clocks_get_m_n.c
diff --git a/arch/arm/cpu/armv7/omap4/Makefile b/arch/arm/cpu/armv7/omap4/Makefile index 987dc9d..ac4b2a6 100644 --- a/arch/arm/cpu/armv7/omap4/Makefile +++ b/arch/arm/cpu/armv7/omap4/Makefile @@ -28,6 +28,7 @@ LIB = $(obj)lib$(SOC).o SOBJS += lowlevel_init.o
COBJS += board.o +COBJS += clocks.o COBJS += mem.o COBJS += sys_info.o
diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c index 09861a9..1c26a66 100644 --- a/arch/arm/cpu/armv7/omap4/board.c +++ b/arch/arm/cpu/armv7/omap4/board.c @@ -154,6 +154,7 @@ void s_init(void) init_omap4_revision(); watchdog_init(); set_mux_conf_regs(); + prcm_init(); }
/* diff --git a/arch/arm/cpu/armv7/omap4/clocks.c b/arch/arm/cpu/armv7/omap4/clocks.c new file mode 100644 index 0000000..e8d3a52 --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/clocks.c @@ -0,0 +1,809 @@ +/* + * + * Clock initialization for OMAP4 + * + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Aneesh V aneesh@ti.com + * + * Based on previous work by: + * Santosh Shilimkar santosh.shilimkar@ti.com + * Rajendra Nayak rnayak@ti.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> +#include <asm/omap_common.h> +#include <asm/arch/clocks.h> +#include <asm/arch/sys_proto.h> +#include <asm/utils.h> + +#ifndef CONFIG_SPL_BUILD +/* + * printing to console doesn't work unless + * this code is executed from SPL + */ +#define printf(fmt, args...) +#define puts(s) +#endif + +#define abs(x) (((x) < 0) ? ((x)*-1) : (x)) + +struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100; + +static const u32 sys_clk_array[8] = { + 12000000, /* 12 MHz */ + 13000000, /* 13 MHz */ + 16800000, /* 16.8 MHz */ + 19200000, /* 19.2 MHz */ + 26000000, /* 26 MHz */ + 27000000, /* 27 MHz */ + 38400000, /* 38.4 MHz */ +}; + +/* + * The M & N values in the following tables are created using the + * following tool: + * tools/omap/clocks_get_m_n.c + * Please use this tool for creating the table for any new frequency. + */ + +/* dpll locked at 1584 MHz - MPU clk at 792 MHz(OPP Turbo) */ +static const struct dpll_params mpu_dpll_params_1584mhz[NUM_SYS_CLKS] = { + {66, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */ + {792, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */ + {330, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ + {165, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ + {396, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */ + {88, 2, 1, -1, -1, -1, -1, -1}, /* 27 MHz */ + {165, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */ +}; + +/* dpll locked at 1200 MHz - MPU clk at 600 MHz */ +static const struct dpll_params mpu_dpll_params_1200mhz[NUM_SYS_CLKS] = { + {50, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */ + {600, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */ + {250, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ + {125, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ + {300, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */ + {200, 8, 1, -1, -1, -1, -1, -1}, /* 27 MHz */ + {125, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */ +}; + +static const struct dpll_params core_dpll_params_1600mhz[NUM_SYS_CLKS] = { + {200, 2, 1, 5, 8, 4, 6, 5}, /* 12 MHz */ + {800, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */ + {619, 12, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */ + {125, 2, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */ + {400, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */ + {800, 26, 1, 5, 8, 4, 6, 5}, /* 27 MHz */ + {125, 5, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */ +}; + +static const struct dpll_params core_dpll_params_es1_1524mhz[NUM_SYS_CLKS] = { + {127, 1, 1, 5, 8, 4, 6, 5}, /* 12 MHz */ + {762, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */ + {635, 13, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */ + {635, 15, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */ + {381, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */ + {254, 8, 1, 5, 8, 4, 6, 5}, /* 27 MHz */ + {496, 24, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */ +}; + +static const struct dpll_params + core_dpll_params_es2_1600mhz_ddr200mhz[NUM_SYS_CLKS] = { + {200, 2, 2, 5, 8, 4, 6, 5}, /* 12 MHz */ + {800, 12, 2, 5, 8, 4, 6, 5}, /* 13 MHz */ + {619, 12, 2, 5, 8, 4, 6, 5}, /* 16.8 MHz */ + {125, 2, 2, 5, 8, 4, 6, 5}, /* 19.2 MHz */ + {400, 12, 2, 5, 8, 4, 6, 5}, /* 26 MHz */ + {800, 26, 2, 5, 8, 4, 6, 5}, /* 27 MHz */ + {125, 5, 2, 5, 8, 4, 6, 5} /* 38.4 MHz */ +}; + +static const struct dpll_params per_dpll_params_1536mhz[NUM_SYS_CLKS] = { + {64, 0, 8, 6, 12, 9, 4, 5}, /* 12 MHz */ + {768, 12, 8, 6, 12, 9, 4, 5}, /* 13 MHz */ + {320, 6, 8, 6, 12, 9, 4, 5}, /* 16.8 MHz */ + {40, 0, 8, 6, 12, 9, 4, 5}, /* 19.2 MHz */ + {384, 12, 8, 6, 12, 9, 4, 5}, /* 26 MHz */ + {256, 8, 8, 6, 12, 9, 4, 5}, /* 27 MHz */ + {20, 0, 8, 6, 12, 9, 4, 5} /* 38.4 MHz */ +}; + +static const struct dpll_params iva_dpll_params_1862mhz[NUM_SYS_CLKS] = { + {931, 11, -1, -1, 4, 7, -1, -1}, /* 12 MHz */ + {931, 12, -1, -1, 4, 7, -1, -1}, /* 13 MHz */ + {665, 11, -1, -1, 4, 7, -1, -1}, /* 16.8 MHz */ + {727, 14, -1, -1, 4, 7, -1, -1}, /* 19.2 MHz */ + {931, 25, -1, -1, 4, 7, -1, -1}, /* 26 MHz */ + {931, 26, -1, -1, 4, 7, -1, -1}, /* 27 MHz */ + {412, 16, -1, -1, 4, 7, -1, -1} /* 38.4 MHz */ +}; + +/* ABE M & N values with sys_clk as source */ +static const struct dpll_params + abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = { + {49, 5, 1, 1, -1, -1, -1, -1}, /* 12 MHz */ + {68, 8, 1, 1, -1, -1, -1, -1}, /* 13 MHz */ + {35, 5, 1, 1, -1, -1, -1, -1}, /* 16.8 MHz */ + {46, 8, 1, 1, -1, -1, -1, -1}, /* 19.2 MHz */ + {34, 8, 1, 1, -1, -1, -1, -1}, /* 26 MHz */ + {29, 7, 1, 1, -1, -1, -1, -1}, /* 27 MHz */ + {64, 24, 1, 1, -1, -1, -1, -1} /* 38.4 MHz */ +}; + +/* ABE M & N values with 32K clock as source */ +static const struct dpll_params abe_dpll_params_32k_196608khz = { + 750, 0, 1, 1, -1, -1, -1, -1 +}; + + +static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = { + {80, 0, 2, -1, -1, -1, -1, -1}, /* 12 MHz */ + {960, 12, 2, -1, -1, -1, -1, -1}, /* 13 MHz */ + {400, 6, 2, -1, -1, -1, -1, -1}, /* 16.8 MHz */ + {50, 0, 2, -1, -1, -1, -1, -1}, /* 19.2 MHz */ + {480, 12, 2, -1, -1, -1, -1, -1}, /* 26 MHz */ + {320, 8, 2, -1, -1, -1, -1, -1}, /* 27 MHz */ + {25, 0, 2, -1, -1, -1, -1, -1} /* 38.4 MHz */ +}; + +static inline u32 __get_sys_clk_index(void) +{ + u32 ind; + /* + * For ES1 the ROM code calibration of sys clock is not reliable + * due to hw issue. So, use hard-coded value. If this value is not + * correct for any board over-ride this function in board file + * From ES2.0 onwards you will get this information from + * CM_SYS_CLKSEL + */ + if (omap_revision() == OMAP4430_ES1_0) + ind = OMAP_SYS_CLK_IND_38_4_MHZ; + else { + /* SYS_CLKSEL - 1 to match the dpll param array indices */ + ind = (readl(&prcm->cm_sys_clksel) & + CM_SYS_CLKSEL_SYS_CLKSEL_MASK) - 1; + } + return ind; +} + +u32 get_sys_clk_index(void) + __attribute__ ((weak, alias("__get_sys_clk_index"))); + +u32 get_sys_clk_freq(void) +{ + u8 index = get_sys_clk_index(); + return sys_clk_array[index]; +} + +static inline void do_bypass_dpll(u32 *const base) +{ + struct dpll_regs *dpll_regs = (struct dpll_regs *)base; + + clrsetbits_le32(&dpll_regs->cm_clkmode_dpll, + CM_CLKMODE_DPLL_DPLL_EN_MASK, + DPLL_EN_FAST_RELOCK_BYPASS << + CM_CLKMODE_DPLL_EN_SHIFT); +} + +static inline void wait_for_bypass(u32 *const base) +{ + struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; + + if (!wait_on_value(ST_DPLL_CLK_MASK, 0, &dpll_regs->cm_idlest_dpll, + LDELAY)) { + printf("Bypassing DPLL failed %p\n", base); + } +} + +static inline void do_lock_dpll(u32 *const base) +{ + struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; + + clrsetbits_le32(&dpll_regs->cm_clkmode_dpll, + CM_CLKMODE_DPLL_DPLL_EN_MASK, + DPLL_EN_LOCK << CM_CLKMODE_DPLL_EN_SHIFT); +} + +static inline void wait_for_lock(u32 *const base) +{ + struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; + + if (!wait_on_value(ST_DPLL_CLK_MASK, ST_DPLL_CLK_MASK, + &dpll_regs->cm_idlest_dpll, LDELAY)) { + printf("DPLL locking failed for %p\n", base); + hang(); + } +} + +static void do_setup_dpll(u32 *const base, const struct dpll_params *params, + u8 lock) +{ + u32 temp; + struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; + + bypass_dpll(base); + + /* Set M & N */ + temp = readl(&dpll_regs->cm_clksel_dpll); + + temp &= ~CM_CLKSEL_DPLL_M_MASK; + temp |= (params->m << CM_CLKSEL_DPLL_M_SHIFT) & CM_CLKSEL_DPLL_M_MASK; + + temp &= ~CM_CLKSEL_DPLL_N_MASK; + temp |= (params->n << CM_CLKSEL_DPLL_N_SHIFT) & CM_CLKSEL_DPLL_N_MASK; + + writel(temp, &dpll_regs->cm_clksel_dpll); + + /* Lock */ + if (lock) + do_lock_dpll(base); + + /* Setup post-dividers */ + if (params->m2 >= 0) + writel(params->m2, &dpll_regs->cm_div_m2_dpll); + if (params->m3 >= 0) + writel(params->m3, &dpll_regs->cm_div_m3_dpll); + if (params->m4 >= 0) + writel(params->m4, &dpll_regs->cm_div_m4_dpll); + if (params->m5 >= 0) + writel(params->m5, &dpll_regs->cm_div_m5_dpll); + if (params->m6 >= 0) + writel(params->m6, &dpll_regs->cm_div_m6_dpll); + if (params->m7 >= 0) + writel(params->m7, &dpll_regs->cm_div_m7_dpll); + + /* Wait till the DPLL locks */ + if (lock) + wait_for_lock(base); +} + +const struct dpll_params *get_core_dpll_params(void) +{ + u32 sysclk_ind = get_sys_clk_index(); + + switch (omap_revision()) { + case OMAP4430_ES1_0: + return &core_dpll_params_es1_1524mhz[sysclk_ind]; + case OMAP4430_ES2_0: + case OMAP4430_SILICON_ID_INVALID: + /* safest */ + return &core_dpll_params_es2_1600mhz_ddr200mhz[sysclk_ind]; + default: + return &core_dpll_params_1600mhz[sysclk_ind]; + } +} + +u32 omap4_ddr_clk(void) +{ + u32 ddr_clk, sys_clk_khz; + const struct dpll_params *core_dpll_params; + + sys_clk_khz = get_sys_clk_freq() / 1000; + + core_dpll_params = get_core_dpll_params(); + + debug("sys_clk %d\n ", sys_clk_khz * 1000); + + /* Find Core DPLL locked frequency first */ + ddr_clk = sys_clk_khz * 2 * core_dpll_params->m / + (core_dpll_params->n + 1); + /* + * DDR frequency is PHY_ROOT_CLK/2 + * PHY_ROOT_CLK = Fdpll/2/M2 + */ + ddr_clk = ddr_clk / 4 / core_dpll_params->m2; + + ddr_clk *= 1000; /* convert to Hz */ + debug("ddr_clk %d\n ", ddr_clk); + + return ddr_clk; +} + +static void setup_dplls(void) +{ + u32 sysclk_ind, temp; + const struct dpll_params *params; + debug("setup_dplls\n"); + + sysclk_ind = get_sys_clk_index(); + + /* CORE dpll */ + params = get_core_dpll_params(); /* default - safest */ + /* + * Do not lock the core DPLL now. Just set it up. + * Core DPLL will be locked after setting up EMIF + * using the FREQ_UPDATE method(freq_update_core()) + */ + do_setup_dpll(&prcm->cm_clkmode_dpll_core, params, DPLL_NO_LOCK); + /* Set the ratios for CORE_CLK, L3_CLK, L4_CLK */ + temp = (CLKSEL_CORE_X2_DIV_1 << CLKSEL_CORE_SHIFT) | + (CLKSEL_L3_CORE_DIV_2 << CLKSEL_L3_SHIFT) | + (CLKSEL_L4_L3_DIV_2 << CLKSEL_L4_SHIFT); + writel(temp, &prcm->cm_clksel_core); + debug("Core DPLL configured\n"); + + /* lock PER dpll */ + do_setup_dpll(&prcm->cm_clkmode_dpll_per, + &per_dpll_params_1536mhz[sysclk_ind], DPLL_LOCK); + debug("PER DPLL locked\n"); + + /* MPU dpll */ + if (omap_revision() == OMAP4430_ES1_0) + params = &mpu_dpll_params_1200mhz[sysclk_ind]; + else + params = &mpu_dpll_params_1584mhz[sysclk_ind]; + do_setup_dpll(&prcm->cm_clkmode_dpll_mpu, params, DPLL_LOCK); + debug("MPU DPLL locked\n"); +} + +static void setup_non_essential_dplls(void) +{ + u32 sys_clk_khz, abe_ref_clk; + u32 sysclk_ind, sd_div, num, den; + const struct dpll_params *params; + + sysclk_ind = get_sys_clk_index(); + sys_clk_khz = get_sys_clk_freq() / 1000; + + /* IVA */ + clrsetbits_le32(&prcm->cm_bypclk_dpll_iva, + CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2); + + do_setup_dpll(&prcm->cm_clkmode_dpll_iva, + &iva_dpll_params_1862mhz[sysclk_ind], DPLL_LOCK); + + /* + * USB: + * USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction + * DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250) + * - where CLKINP is sys_clk in MHz + * Use CLKINP in KHz and adjust the denominator accordingly so + * that we have enough accuracy and at the same time no overflow + */ + params = &usb_dpll_params_1920mhz[sysclk_ind]; + num = params->m * sys_clk_khz; + den = (params->n + 1) * 250 * 1000; + num += den - 1; + sd_div = num / den; + clrsetbits_le32(&prcm->cm_clksel_dpll_usb, + CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK, + sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT); + + /* Now setup the dpll with the regular function */ + do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK); + +#ifdef CONFIG_SYS_OMAP4_ABE_SYSCK + params = &abe_dpll_params_sysclk_196608khz[sysclk_ind]; + abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK; +#else + params = &abe_dpll_params_32k_196608khz; + abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK; + /* + * We need to enable some additional options to achieve + * 196.608MHz from 32768 Hz + */ + setbits_le32(&prcm->cm_clkmode_dpll_abe, + CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK| + CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK| + CM_CLKMODE_DPLL_LPMODE_EN_MASK| + CM_CLKMODE_DPLL_REGM4XEN_MASK); + /* Spend 4 REFCLK cycles at each stage */ + clrsetbits_le32(&prcm->cm_clkmode_dpll_abe, + CM_CLKMODE_DPLL_RAMP_RATE_MASK, + 1 << CM_CLKMODE_DPLL_RAMP_RATE_SHIFT); +#endif + + /* Select the right reference clk */ + clrsetbits_le32(&prcm->cm_abe_pll_ref_clksel, + CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK, + abe_ref_clk << CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT); + /* Lock the dpll */ + do_setup_dpll(&prcm->cm_clkmode_dpll_abe, params, DPLL_LOCK); +} + +static void do_scale_vcore(u32 vcore_reg, u32 volt_mv) +{ + u32 temp, offset_code; + u32 step = 12660; /* 12.66 mV represented in uV */ + u32 offset = volt_mv; + + /* convert to uV for better accuracy in the calculations */ + offset *= 1000; + + if (omap_revision() == OMAP4430_ES1_0) + offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV; + else + offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV; + + offset_code = (offset + step - 1) / step; + /* The code starts at 1 not 0 */ + offset_code++; + + debug("do_scale_vcore: volt - %d offset_code - 0x%x\n", volt_mv, + offset_code); + + temp = SMPS_I2C_SLAVE_ADDR | + (vcore_reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) | + (offset_code << PRM_VC_VAL_BYPASS_DATA_SHIFT) | + PRM_VC_VAL_BYPASS_VALID_BIT; + writel(temp, &prcm->prm_vc_val_bypass); + if (!wait_on_value(PRM_VC_VAL_BYPASS_VALID_BIT, 0, + &prcm->prm_vc_val_bypass, LDELAY)) { + printf("Scaling voltage failed for 0x%x\n", vcore_reg); + } +} + +/* + * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva + * We set the maximum voltages allowed here because Smart-Reflex is not + * enabled in bootloader. Voltage initialization in the kernel will set + * these to the nominal values after enabling Smart-Reflex + */ +static void scale_vcores(void) +{ + u32 volt, sys_clk_khz, cycles_hi, cycles_low, temp; + + sys_clk_khz = get_sys_clk_freq() / 1000; + + /* + * Setup the dedicated I2C controller for Voltage Control + * I2C clk - high period 40% low period 60% + */ + cycles_hi = sys_clk_khz * 4 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10; + cycles_low = sys_clk_khz * 6 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10; + /* values to be set in register - less by 5 & 7 respectively */ + cycles_hi -= 5; + cycles_low -= 7; + temp = (cycles_hi << PRM_VC_CFG_I2C_CLK_SCLH_SHIFT) | + (cycles_low << PRM_VC_CFG_I2C_CLK_SCLL_SHIFT); + writel(temp, &prcm->prm_vc_cfg_i2c_clk); + + /* Disable high speed mode and all advanced features */ + writel(0x0, &prcm->prm_vc_cfg_i2c_mode); + + /* + * VCORE 1 - 4430 : supplies vdd_mpu + * Setting a high voltage for Nitro mode as smart reflex is not enabled. + * We use the maximum possible value in the AVS range because the next + * higher voltage in the discrete range (code >= 0b111010) is way too + * high + */ + volt = 1417; + do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt); + + /* VCORE 2 - supplies vdd_iva */ + volt = 1200; + do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt); + + /* VCORE 3 - supplies vdd_core */ + volt = 1200; + do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt); +} + +static inline void enable_clock_domain(u32 *const clkctrl_reg, u32 enable_mode) +{ + clrsetbits_le32(clkctrl_reg, CD_CLKCTRL_CLKTRCTRL_MASK, + enable_mode << CD_CLKCTRL_CLKTRCTRL_SHIFT); + debug("Enable clock domain - 0x%08x\n", clkctrl_reg); +} + +static inline void wait_for_clk_enable(u32 *clkctrl_addr) +{ + u32 clkctrl, idlest = MODULE_CLKCTRL_IDLEST_DISABLED; + u32 bound = LDELAY; + + while ((idlest == MODULE_CLKCTRL_IDLEST_DISABLED) || + (idlest == MODULE_CLKCTRL_IDLEST_TRANSITIONING)) { + + clkctrl = readl(clkctrl_addr); + idlest = (clkctrl & MODULE_CLKCTRL_IDLEST_MASK) >> + MODULE_CLKCTRL_IDLEST_SHIFT; + if (--bound == 0) { + printf("Clock enable failed for 0x%p idlest 0x%x\n", + clkctrl_addr, clkctrl); + return; + } + } +} + +static inline void enable_clock_module(u32 *const clkctrl_addr, u32 enable_mode, + u32 wait_for_enable) +{ + clrsetbits_le32(clkctrl_addr, MODULE_CLKCTRL_MODULEMODE_MASK, + enable_mode << MODULE_CLKCTRL_MODULEMODE_SHIFT); + debug("Enable clock module - 0x%08x\n", clkctrl_addr); + if (wait_for_enable) + wait_for_clk_enable(clkctrl_addr); +} + +/* + * Enable essential clock domains, modules and + * do some additional special settings needed + */ +static void enable_basic_clocks(void) +{ + u32 i, max = 100, wait_for_enable = 1; + u32 *const clk_domains_essential[] = { + &prcm->cm_l4per_clkstctrl, + &prcm->cm_l3init_clkstctrl, + &prcm->cm_memif_clkstctrl, + &prcm->cm_l4cfg_clkstctrl, + 0 + }; + + u32 *const clk_modules_hw_auto_essential[] = { + &prcm->cm_wkup_gpio1_clkctrl, + &prcm->cm_l4per_gpio2_clkctrl, + &prcm->cm_l4per_gpio3_clkctrl, + &prcm->cm_l4per_gpio4_clkctrl, + &prcm->cm_l4per_gpio5_clkctrl, + &prcm->cm_l4per_gpio6_clkctrl, + &prcm->cm_memif_emif_1_clkctrl, + &prcm->cm_memif_emif_2_clkctrl, + &prcm->cm_l3init_hsusbotg_clkctrl, + &prcm->cm_l3init_usbphy_clkctrl, + &prcm->cm_l4cfg_l4_cfg_clkctrl, + 0 + }; + + u32 *const clk_modules_explicit_en_essential[] = { + &prcm->cm_l4per_gptimer2_clkctrl, + &prcm->cm_l3init_hsmmc1_clkctrl, + &prcm->cm_l3init_hsmmc2_clkctrl, + &prcm->cm_l4per_mcspi1_clkctrl, + &prcm->cm_wkup_gptimer1_clkctrl, + &prcm->cm_l4per_i2c1_clkctrl, + &prcm->cm_l4per_i2c2_clkctrl, + &prcm->cm_l4per_i2c3_clkctrl, + &prcm->cm_l4per_i2c4_clkctrl, + &prcm->cm_wkup_wdtimer2_clkctrl, + &prcm->cm_l4per_uart3_clkctrl, + 0 + }; + + /* Enable optional additional functional clock for GPIO4 */ + setbits_le32(&prcm->cm_l4per_gpio4_clkctrl, + GPIO4_CLKCTRL_OPTFCLKEN_MASK); + + /* Enable 96 MHz clock for MMC1 & MMC2 */ + setbits_le32(&prcm->cm_l3init_hsmmc1_clkctrl, + HSMMC_CLKCTRL_CLKSEL_MASK); + setbits_le32(&prcm->cm_l3init_hsmmc2_clkctrl, + HSMMC_CLKCTRL_CLKSEL_MASK); + + /* Select 32KHz clock as the source of GPTIMER1 */ + setbits_le32(&prcm->cm_wkup_gptimer1_clkctrl, + GPTIMER1_CLKCTRL_CLKSEL_MASK); + + /* Enable optional 48M functional clock for USB PHY */ + setbits_le32(&prcm->cm_l3init_usbphy_clkctrl, + USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK); + + /* Put the clock domains in SW_WKUP mode */ + for (i = 0; (i < max) && clk_domains_essential[i]; i++) { + enable_clock_domain(clk_domains_essential[i], + CD_CLKCTRL_CLKTRCTRL_SW_WKUP); + } + + /* Clock modules that need to be put in HW_AUTO */ + for (i = 0; (i < max) && clk_modules_hw_auto_essential[i]; i++) { + enable_clock_module(clk_modules_hw_auto_essential[i], + MODULE_CLKCTRL_MODULEMODE_HW_AUTO, + wait_for_enable); + }; + + /* Clock modules that need to be put in SW_EXPLICIT_EN mode */ + for (i = 0; (i < max) && clk_modules_explicit_en_essential[i]; i++) { + enable_clock_module(clk_modules_explicit_en_essential[i], + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN, + wait_for_enable); + }; + + /* Put the clock domains in HW_AUTO mode now */ + for (i = 0; (i < max) && clk_domains_essential[i]; i++) { + enable_clock_domain(clk_domains_essential[i], + CD_CLKCTRL_CLKTRCTRL_HW_AUTO); + } +} + +/* + * Enable non-essential clock domains, modules and + * do some additional special settings needed + */ +static void enable_non_essential_clocks(void) +{ + u32 i, max = 100, wait_for_enable = 0; + u32 *const clk_domains_non_essential[] = { + &prcm->cm_mpu_m3_clkstctrl, + &prcm->cm_ivahd_clkstctrl, + &prcm->cm_dsp_clkstctrl, + &prcm->cm_dss_clkstctrl, + &prcm->cm_sgx_clkstctrl, + &prcm->cm1_abe_clkstctrl, + &prcm->cm_c2c_clkstctrl, + &prcm->cm_cam_clkstctrl, + &prcm->cm_dss_clkstctrl, + &prcm->cm_sdma_clkstctrl, + 0 + }; + + u32 *const clk_modules_hw_auto_non_essential[] = { + &prcm->cm_mpu_m3_mpu_m3_clkctrl, + &prcm->cm_ivahd_ivahd_clkctrl, + &prcm->cm_ivahd_sl2_clkctrl, + &prcm->cm_dsp_dsp_clkctrl, + &prcm->cm_l3_2_gpmc_clkctrl, + &prcm->cm_l3instr_l3_3_clkctrl, + &prcm->cm_l3instr_l3_instr_clkctrl, + &prcm->cm_l3instr_intrconn_wp1_clkctrl, + &prcm->cm_l3init_hsi_clkctrl, + &prcm->cm_l3init_hsusbtll_clkctrl, + 0 + }; + + u32 *const clk_modules_explicit_en_non_essential[] = { + &prcm->cm1_abe_aess_clkctrl, + &prcm->cm1_abe_pdm_clkctrl, + &prcm->cm1_abe_dmic_clkctrl, + &prcm->cm1_abe_mcasp_clkctrl, + &prcm->cm1_abe_mcbsp1_clkctrl, + &prcm->cm1_abe_mcbsp2_clkctrl, + &prcm->cm1_abe_mcbsp3_clkctrl, + &prcm->cm1_abe_slimbus_clkctrl, + &prcm->cm1_abe_timer5_clkctrl, + &prcm->cm1_abe_timer6_clkctrl, + &prcm->cm1_abe_timer7_clkctrl, + &prcm->cm1_abe_timer8_clkctrl, + &prcm->cm1_abe_wdt3_clkctrl, + &prcm->cm_l4per_gptimer9_clkctrl, + &prcm->cm_l4per_gptimer10_clkctrl, + &prcm->cm_l4per_gptimer11_clkctrl, + &prcm->cm_l4per_gptimer3_clkctrl, + &prcm->cm_l4per_gptimer4_clkctrl, + &prcm->cm_l4per_hdq1w_clkctrl, + &prcm->cm_l4per_mcbsp4_clkctrl, + &prcm->cm_l4per_mcspi2_clkctrl, + &prcm->cm_l4per_mcspi3_clkctrl, + &prcm->cm_l4per_mcspi4_clkctrl, + &prcm->cm_l4per_mmcsd3_clkctrl, + &prcm->cm_l4per_mmcsd4_clkctrl, + &prcm->cm_l4per_mmcsd5_clkctrl, + &prcm->cm_l4per_uart1_clkctrl, + &prcm->cm_l4per_uart2_clkctrl, + &prcm->cm_l4per_uart4_clkctrl, + &prcm->cm_wkup_keyboard_clkctrl, + &prcm->cm_wkup_wdtimer2_clkctrl, + &prcm->cm_cam_iss_clkctrl, + &prcm->cm_cam_fdif_clkctrl, + &prcm->cm_dss_dss_clkctrl, + &prcm->cm_sgx_sgx_clkctrl, + &prcm->cm_l3init_hsusbhost_clkctrl, + &prcm->cm_l3init_fsusb_clkctrl, + 0 + }; + + /* Enable optional functional clock for ISS */ + setbits_le32(&prcm->cm_cam_iss_clkctrl, ISS_CLKCTRL_OPTFCLKEN_MASK); + + /* Enable all optional functional clocks of DSS */ + setbits_le32(&prcm->cm_dss_dss_clkctrl, DSS_CLKCTRL_OPTFCLKEN_MASK); + + + /* Put the clock domains in SW_WKUP mode */ + for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) { + enable_clock_domain(clk_domains_non_essential[i], + CD_CLKCTRL_CLKTRCTRL_SW_WKUP); + } + + /* Clock modules that need to be put in HW_AUTO */ + for (i = 0; (i < max) && clk_modules_hw_auto_non_essential[i]; i++) { + enable_clock_module(clk_modules_hw_auto_non_essential[i], + MODULE_CLKCTRL_MODULEMODE_HW_AUTO, + wait_for_enable); + }; + + /* Clock modules that need to be put in SW_EXPLICIT_EN mode */ + for (i = 0; (i < max) && clk_modules_explicit_en_non_essential[i]; + i++) { + enable_clock_module(clk_modules_explicit_en_non_essential[i], + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN, + wait_for_enable); + }; + + /* Put the clock domains in HW_AUTO mode now */ + for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) { + enable_clock_domain(clk_domains_non_essential[i], + CD_CLKCTRL_CLKTRCTRL_HW_AUTO); + } + + /* Put camera module in no sleep mode */ + clrsetbits_le32(&prcm->cm_cam_clkstctrl, MODULE_CLKCTRL_MODULEMODE_MASK, + CD_CLKCTRL_CLKTRCTRL_NO_SLEEP << + MODULE_CLKCTRL_MODULEMODE_SHIFT); +} + + +void freq_update_core(void) +{ + u32 freq_config1 = 0; + const struct dpll_params *core_dpll_params; + + core_dpll_params = get_core_dpll_params(); + /* Put EMIF clock domain in sw wakeup mode */ + enable_clock_domain(&prcm->cm_memif_clkstctrl, + CD_CLKCTRL_CLKTRCTRL_SW_WKUP); + wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl); + wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl); + + freq_config1 = SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK | + SHADOW_FREQ_CONFIG1_DLL_RESET_MASK; + + freq_config1 |= (DPLL_EN_LOCK << SHADOW_FREQ_CONFIG1_DPLL_EN_SHIFT) & + SHADOW_FREQ_CONFIG1_DPLL_EN_MASK; + + freq_config1 |= (core_dpll_params->m2 << + SHADOW_FREQ_CONFIG1_M2_DIV_SHIFT) & + SHADOW_FREQ_CONFIG1_M2_DIV_MASK; + + writel(freq_config1, &prcm->cm_shadow_freq_config1); + if (!wait_on_value(SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK, 0, + &prcm->cm_shadow_freq_config1, LDELAY)) { + puts("FREQ UPDATE procedure failed!!"); + hang(); + } + + /* Put EMIF clock domain back in hw auto mode */ + enable_clock_domain(&prcm->cm_memif_clkstctrl, + CD_CLKCTRL_CLKTRCTRL_HW_AUTO); + wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl); + wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl); +} + +void bypass_dpll(u32 *const base) +{ + do_bypass_dpll(base); + wait_for_bypass(base); +} + +void lock_dpll(u32 *const base) +{ + do_lock_dpll(base); + wait_for_lock(base); +} + +void prcm_init(void) +{ + switch (omap4_hw_init_context()) { + case OMAP_INIT_CONTEXT_SPL: + case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR: + case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH: + scale_vcores(); + setup_dplls(); + enable_basic_clocks(); + setup_non_essential_dplls(); + enable_non_essential_clocks(); + break; + default: + break; + } +} diff --git a/arch/arm/include/asm/arch-omap4/clocks.h b/arch/arm/include/asm/arch-omap4/clocks.h new file mode 100644 index 0000000..71db39c --- /dev/null +++ b/arch/arm/include/asm/arch-omap4/clocks.h @@ -0,0 +1,664 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Aneesh V aneesh@ti.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef _CLOCKS_OMAP4_H_ +#define _CLOCKS_OMAP4_H_ +#include <common.h> + +/* + * Assuming a maximum of 1.5 GHz ARM speed and a minimum of 2 cycles per + * loop, allow for a minimum of 2 ms wait (in reality the wait will be + * much more than that) + */ +#define LDELAY 1000000 + +#define CM_CLKMODE_DPLL_CORE (OMAP44XX_L4_CORE_BASE + 0x4120) +#define CM_CLKMODE_DPLL_PER (OMAP44XX_L4_CORE_BASE + 0x8140) +#define CM_CLKMODE_DPLL_MPU (OMAP44XX_L4_CORE_BASE + 0x4160) +#define CM_CLKSEL_CORE (OMAP44XX_L4_CORE_BASE + 0x4100) + +struct omap4_prcm_regs { + /* cm1.ckgen */ + u32 cm_clksel_core; + u32 pad001[1]; + u32 cm_clksel_abe; + u32 pad002[1]; + u32 cm_dll_ctrl; + u32 pad003[3]; + u32 cm_clkmode_dpll_core; + u32 cm_idlest_dpll_core; + u32 cm_autoidle_dpll_core; + u32 cm_clksel_dpll_core; + u32 cm_div_m2_dpll_core; + u32 cm_div_m3_dpll_core; + u32 cm_div_m4_dpll_core; + u32 cm_div_m5_dpll_core; + u32 cm_div_m6_dpll_core; + u32 cm_div_m7_dpll_core; + u32 cm_ssc_deltamstep_dpll_core; + u32 cm_ssc_modfreqdiv_dpll_core; + u32 cm_emu_override_dpll_core; + u32 pad004[3]; + u32 cm_clkmode_dpll_mpu; + u32 cm_idlest_dpll_mpu; + u32 cm_autoidle_dpll_mpu; + u32 cm_clksel_dpll_mpu; + u32 cm_div_m2_dpll_mpu; + u32 pad005[5]; + u32 cm_ssc_deltamstep_dpll_mpu; + u32 cm_ssc_modfreqdiv_dpll_mpu; + u32 pad006[3]; + u32 cm_bypclk_dpll_mpu; + u32 cm_clkmode_dpll_iva; + u32 cm_idlest_dpll_iva; + u32 cm_autoidle_dpll_iva; + u32 cm_clksel_dpll_iva; + u32 pad007[2]; + u32 cm_div_m4_dpll_iva; + u32 cm_div_m5_dpll_iva; + u32 pad008[2]; + u32 cm_ssc_deltamstep_dpll_iva; + u32 cm_ssc_modfreqdiv_dpll_iva; + u32 pad009[3]; + u32 cm_bypclk_dpll_iva; + u32 cm_clkmode_dpll_abe; + u32 cm_idlest_dpll_abe; + u32 cm_autoidle_dpll_abe; + u32 cm_clksel_dpll_abe; + u32 cm_div_m2_dpll_abe; + u32 cm_div_m3_dpll_abe; + u32 pad010[4]; + u32 cm_ssc_deltamstep_dpll_abe; + u32 cm_ssc_modfreqdiv_dpll_abe; + u32 pad011[4]; + u32 cm_clkmode_dpll_ddrphy; + u32 cm_idlest_dpll_ddrphy; + u32 cm_autoidle_dpll_ddrphy; + u32 cm_clksel_dpll_ddrphy; + u32 cm_div_m2_dpll_ddrphy; + u32 pad012[1]; + u32 cm_div_m4_dpll_ddrphy; + u32 cm_div_m5_dpll_ddrphy; + u32 cm_div_m6_dpll_ddrphy; + u32 pad013[1]; + u32 cm_ssc_deltamstep_dpll_ddrphy; + u32 pad014[5]; + u32 cm_shadow_freq_config1; + + /* cm1.dsp */ + u32 pad015[103]; + u32 cm_dsp_clkstctrl; + u32 pad016[7]; + u32 cm_dsp_dsp_clkctrl; + + /* cm1.abe */ + u32 pad017[55]; + u32 cm1_abe_clkstctrl; + u32 pad018[7]; + u32 cm1_abe_l4abe_clkctrl; + u32 pad019[1]; + u32 cm1_abe_aess_clkctrl; + u32 pad020[1]; + u32 cm1_abe_pdm_clkctrl; + u32 pad021[1]; + u32 cm1_abe_dmic_clkctrl; + u32 pad022[1]; + u32 cm1_abe_mcasp_clkctrl; + u32 pad023[1]; + u32 cm1_abe_mcbsp1_clkctrl; + u32 pad024[1]; + u32 cm1_abe_mcbsp2_clkctrl; + u32 pad025[1]; + u32 cm1_abe_mcbsp3_clkctrl; + u32 pad026[1]; + u32 cm1_abe_slimbus_clkctrl; + u32 pad027[1]; + u32 cm1_abe_timer5_clkctrl; + u32 pad028[1]; + u32 cm1_abe_timer6_clkctrl; + u32 pad029[1]; + u32 cm1_abe_timer7_clkctrl; + u32 pad030[1]; + u32 cm1_abe_timer8_clkctrl; + u32 pad031[1]; + u32 cm1_abe_wdt3_clkctrl; + + /* cm2.ckgen */ + u32 pad032[3805]; + u32 cm_clksel_mpu_m3_iss_root; + u32 cm_clksel_usb_60mhz; + u32 cm_scale_fclk; + u32 pad033[1]; + u32 cm_core_dvfs_perf1; + u32 cm_core_dvfs_perf2; + u32 cm_core_dvfs_perf3; + u32 cm_core_dvfs_perf4; + u32 pad034[1]; + u32 cm_core_dvfs_current; + u32 cm_iva_dvfs_perf_tesla; + u32 cm_iva_dvfs_perf_ivahd; + u32 cm_iva_dvfs_perf_abe; + u32 pad035[1]; + u32 cm_iva_dvfs_current; + u32 pad036[1]; + u32 cm_clkmode_dpll_per; + u32 cm_idlest_dpll_per; + u32 cm_autoidle_dpll_per; + u32 cm_clksel_dpll_per; + u32 cm_div_m2_dpll_per; + u32 cm_div_m3_dpll_per; + u32 cm_div_m4_dpll_per; + u32 cm_div_m5_dpll_per; + u32 cm_div_m6_dpll_per; + u32 cm_div_m7_dpll_per; + u32 cm_ssc_deltamstep_dpll_per; + u32 cm_ssc_modfreqdiv_dpll_per; + u32 cm_emu_override_dpll_per; + u32 pad037[3]; + u32 cm_clkmode_dpll_usb; + u32 cm_idlest_dpll_usb; + u32 cm_autoidle_dpll_usb; + u32 cm_clksel_dpll_usb; + u32 cm_div_m2_dpll_usb; + u32 pad038[5]; + u32 cm_ssc_deltamstep_dpll_usb; + u32 cm_ssc_modfreqdiv_dpll_usb; + u32 pad039[1]; + u32 cm_clkdcoldo_dpll_usb; + u32 pad040[2]; + u32 cm_clkmode_dpll_unipro; + u32 cm_idlest_dpll_unipro; + u32 cm_autoidle_dpll_unipro; + u32 cm_clksel_dpll_unipro; + u32 cm_div_m2_dpll_unipro; + u32 pad041[5]; + u32 cm_ssc_deltamstep_dpll_unipro; + u32 cm_ssc_modfreqdiv_dpll_unipro; + + /* cm2.core */ + u32 pad0411[324]; + u32 cm_l3_1_clkstctrl; + u32 pad042[1]; + u32 cm_l3_1_dynamicdep; + u32 pad043[5]; + u32 cm_l3_1_l3_1_clkctrl; + u32 pad044[55]; + u32 cm_l3_2_clkstctrl; + u32 pad045[1]; + u32 cm_l3_2_dynamicdep; + u32 pad046[5]; + u32 cm_l3_2_l3_2_clkctrl; + u32 pad047[1]; + u32 cm_l3_2_gpmc_clkctrl; + u32 pad048[1]; + u32 cm_l3_2_ocmc_ram_clkctrl; + u32 pad049[51]; + u32 cm_mpu_m3_clkstctrl; + u32 cm_mpu_m3_staticdep; + u32 cm_mpu_m3_dynamicdep; + u32 pad050[5]; + u32 cm_mpu_m3_mpu_m3_clkctrl; + u32 pad051[55]; + u32 cm_sdma_clkstctrl; + u32 cm_sdma_staticdep; + u32 cm_sdma_dynamicdep; + u32 pad052[5]; + u32 cm_sdma_sdma_clkctrl; + u32 pad053[55]; + u32 cm_memif_clkstctrl; + u32 pad054[7]; + u32 cm_memif_dmm_clkctrl; + u32 pad055[1]; + u32 cm_memif_emif_fw_clkctrl; + u32 pad056[1]; + u32 cm_memif_emif_1_clkctrl; + u32 pad057[1]; + u32 cm_memif_emif_2_clkctrl; + u32 pad058[1]; + u32 cm_memif_dll_clkctrl; + u32 pad059[3]; + u32 cm_memif_emif_h1_clkctrl; + u32 pad060[1]; + u32 cm_memif_emif_h2_clkctrl; + u32 pad061[1]; + u32 cm_memif_dll_h_clkctrl; + u32 pad062[39]; + u32 cm_c2c_clkstctrl; + u32 cm_c2c_staticdep; + u32 cm_c2c_dynamicdep; + u32 pad063[5]; + u32 cm_c2c_sad2d_clkctrl; + u32 pad064[1]; + u32 cm_c2c_modem_icr_clkctrl; + u32 pad065[1]; + u32 cm_c2c_sad2d_fw_clkctrl; + u32 pad066[51]; + u32 cm_l4cfg_clkstctrl; + u32 pad067[1]; + u32 cm_l4cfg_dynamicdep; + u32 pad068[5]; + u32 cm_l4cfg_l4_cfg_clkctrl; + u32 pad069[1]; + u32 cm_l4cfg_hw_sem_clkctrl; + u32 pad070[1]; + u32 cm_l4cfg_mailbox_clkctrl; + u32 pad071[1]; + u32 cm_l4cfg_sar_rom_clkctrl; + u32 pad072[49]; + u32 cm_l3instr_clkstctrl; + u32 pad073[7]; + u32 cm_l3instr_l3_3_clkctrl; + u32 pad074[1]; + u32 cm_l3instr_l3_instr_clkctrl; + u32 pad075[5]; + u32 cm_l3instr_intrconn_wp1_clkctrl; + + + /* cm2.ivahd */ + u32 pad076[47]; + u32 cm_ivahd_clkstctrl; + u32 pad077[7]; + u32 cm_ivahd_ivahd_clkctrl; + u32 pad078[1]; + u32 cm_ivahd_sl2_clkctrl; + + /* cm2.cam */ + u32 pad079[53]; + u32 cm_cam_clkstctrl; + u32 pad080[7]; + u32 cm_cam_iss_clkctrl; + u32 pad081[1]; + u32 cm_cam_fdif_clkctrl; + + /* cm2.dss */ + u32 pad082[53]; + u32 cm_dss_clkstctrl; + u32 pad083[7]; + u32 cm_dss_dss_clkctrl; + + /* cm2.sgx */ + u32 pad084[55]; + u32 cm_sgx_clkstctrl; + u32 pad085[7]; + u32 cm_sgx_sgx_clkctrl; + + /* cm2.l3init */ + u32 pad086[55]; + u32 cm_l3init_clkstctrl; + + /* cm2.l3init */ + u32 pad087[9]; + u32 cm_l3init_hsmmc1_clkctrl; + u32 pad088[1]; + u32 cm_l3init_hsmmc2_clkctrl; + u32 pad089[1]; + u32 cm_l3init_hsi_clkctrl; + u32 pad090[7]; + u32 cm_l3init_hsusbhost_clkctrl; + u32 pad091[1]; + u32 cm_l3init_hsusbotg_clkctrl; + u32 pad092[1]; + u32 cm_l3init_hsusbtll_clkctrl; + u32 pad093[3]; + u32 cm_l3init_p1500_clkctrl; + u32 pad094[21]; + u32 cm_l3init_fsusb_clkctrl; + u32 pad095[3]; + u32 cm_l3init_usbphy_clkctrl; + + /* cm2.l4per */ + u32 pad096[7]; + u32 cm_l4per_clkstctrl; + u32 pad097[1]; + u32 cm_l4per_dynamicdep; + u32 pad098[5]; + u32 cm_l4per_adc_clkctrl; + u32 pad100[1]; + u32 cm_l4per_gptimer10_clkctrl; + u32 pad101[1]; + u32 cm_l4per_gptimer11_clkctrl; + u32 pad102[1]; + u32 cm_l4per_gptimer2_clkctrl; + u32 pad103[1]; + u32 cm_l4per_gptimer3_clkctrl; + u32 pad104[1]; + u32 cm_l4per_gptimer4_clkctrl; + u32 pad105[1]; + u32 cm_l4per_gptimer9_clkctrl; + u32 pad106[1]; + u32 cm_l4per_elm_clkctrl; + u32 pad107[1]; + u32 cm_l4per_gpio2_clkctrl; + u32 pad108[1]; + u32 cm_l4per_gpio3_clkctrl; + u32 pad109[1]; + u32 cm_l4per_gpio4_clkctrl; + u32 pad110[1]; + u32 cm_l4per_gpio5_clkctrl; + u32 pad111[1]; + u32 cm_l4per_gpio6_clkctrl; + u32 pad112[1]; + u32 cm_l4per_hdq1w_clkctrl; + u32 pad113[1]; + u32 cm_l4per_hecc1_clkctrl; + u32 pad114[1]; + u32 cm_l4per_hecc2_clkctrl; + u32 pad115[1]; + u32 cm_l4per_i2c1_clkctrl; + u32 pad116[1]; + u32 cm_l4per_i2c2_clkctrl; + u32 pad117[1]; + u32 cm_l4per_i2c3_clkctrl; + u32 pad118[1]; + u32 cm_l4per_i2c4_clkctrl; + u32 pad119[1]; + u32 cm_l4per_l4per_clkctrl; + u32 pad1191[3]; + u32 cm_l4per_mcasp2_clkctrl; + u32 pad120[1]; + u32 cm_l4per_mcasp3_clkctrl; + u32 pad121[1]; + u32 cm_l4per_mcbsp4_clkctrl; + u32 pad122[1]; + u32 cm_l4per_mgate_clkctrl; + u32 pad123[1]; + u32 cm_l4per_mcspi1_clkctrl; + u32 pad124[1]; + u32 cm_l4per_mcspi2_clkctrl; + u32 pad125[1]; + u32 cm_l4per_mcspi3_clkctrl; + u32 pad126[1]; + u32 cm_l4per_mcspi4_clkctrl; + u32 pad127[5]; + u32 cm_l4per_mmcsd3_clkctrl; + u32 pad128[1]; + u32 cm_l4per_mmcsd4_clkctrl; + u32 pad129[1]; + u32 cm_l4per_msprohg_clkctrl; + u32 pad130[1]; + u32 cm_l4per_slimbus2_clkctrl; + u32 pad131[1]; + u32 cm_l4per_uart1_clkctrl; + u32 pad132[1]; + u32 cm_l4per_uart2_clkctrl; + u32 pad133[1]; + u32 cm_l4per_uart3_clkctrl; + u32 pad134[1]; + u32 cm_l4per_uart4_clkctrl; + u32 pad135[1]; + u32 cm_l4per_mmcsd5_clkctrl; + u32 pad136[1]; + u32 cm_l4per_i2c5_clkctrl; + u32 pad137[5]; + u32 cm_l4sec_clkstctrl; + u32 cm_l4sec_staticdep; + u32 cm_l4sec_dynamicdep; + u32 pad138[5]; + u32 cm_l4sec_aes1_clkctrl; + u32 pad139[1]; + u32 cm_l4sec_aes2_clkctrl; + u32 pad140[1]; + u32 cm_l4sec_des3des_clkctrl; + u32 pad141[1]; + u32 cm_l4sec_pkaeip29_clkctrl; + u32 pad142[1]; + u32 cm_l4sec_rng_clkctrl; + u32 pad143[1]; + u32 cm_l4sec_sha2md51_clkctrl; + u32 pad144[3]; + u32 cm_l4sec_cryptodma_clkctrl; + u32 pad145[776841]; + + /* l4 wkup regs */ + u32 pad201[6211]; + u32 cm_abe_pll_ref_clksel; + u32 cm_sys_clksel; + u32 pad202[1467]; + u32 cm_wkup_clkstctrl; + u32 pad203[7]; + u32 cm_wkup_l4wkup_clkctrl; + u32 pad204; + u32 cm_wkup_wdtimer1_clkctrl; + u32 pad205; + u32 cm_wkup_wdtimer2_clkctrl; + u32 pad206; + u32 cm_wkup_gpio1_clkctrl; + u32 pad207; + u32 cm_wkup_gptimer1_clkctrl; + u32 pad208; + u32 cm_wkup_gptimer12_clkctrl; + u32 pad209; + u32 cm_wkup_synctimer_clkctrl; + u32 pad210; + u32 cm_wkup_usim_clkctrl; + u32 pad211; + u32 cm_wkup_sarram_clkctrl; + u32 pad212[5]; + u32 cm_wkup_keyboard_clkctrl; + u32 pad213; + u32 cm_wkup_rtc_clkctrl; + u32 pad214; + u32 cm_wkup_bandgap_clkctrl; + u32 pad215[197]; + u32 prm_vc_val_bypass; + u32 prm_vc_cfg_channel; + u32 prm_vc_cfg_i2c_mode; + u32 prm_vc_cfg_i2c_clk; + +}; + +/* DPLL register offsets */ +#define CM_CLKMODE_DPLL 0 +#define CM_IDLEST_DPLL 0x4 +#define CM_AUTOIDLE_DPLL 0x8 +#define CM_CLKSEL_DPLL 0xC +#define CM_DIV_M2_DPLL 0x10 +#define CM_DIV_M3_DPLL 0x14 +#define CM_DIV_M4_DPLL 0x18 +#define CM_DIV_M5_DPLL 0x1C +#define CM_DIV_M6_DPLL 0x20 +#define CM_DIV_M7_DPLL 0x24 + +#define DPLL_CLKOUT_DIV_MASK 0x1F /* post-divider mask */ + +/* CM_CLKMODE_DPLL */ +#define CM_CLKMODE_DPLL_REGM4XEN_SHIFT 11 +#define CM_CLKMODE_DPLL_REGM4XEN_MASK (1 << 11) +#define CM_CLKMODE_DPLL_LPMODE_EN_SHIFT 10 +#define CM_CLKMODE_DPLL_LPMODE_EN_MASK (1 << 10) +#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_SHIFT 9 +#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK (1 << 9) +#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_SHIFT 8 +#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK (1 << 8) +#define CM_CLKMODE_DPLL_RAMP_RATE_SHIFT 5 +#define CM_CLKMODE_DPLL_RAMP_RATE_MASK (0x7 << 5) +#define CM_CLKMODE_DPLL_EN_SHIFT 0 +#define CM_CLKMODE_DPLL_EN_MASK (0x7 << 0) + +#define CM_CLKMODE_DPLL_DPLL_EN_SHIFT 0 +#define CM_CLKMODE_DPLL_DPLL_EN_MASK 7 + +#define DPLL_EN_STOP 1 +#define DPLL_EN_MN_BYPASS 4 +#define DPLL_EN_LOW_POWER_BYPASS 5 +#define DPLL_EN_FAST_RELOCK_BYPASS 6 +#define DPLL_EN_LOCK 7 + +/* CM_IDLEST_DPLL fields */ +#define ST_DPLL_CLK_MASK 1 + +/* CM_CLKSEL_DPLL */ +#define CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT 24 +#define CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK (0xFF << 24) +#define CM_CLKSEL_DPLL_M_SHIFT 8 +#define CM_CLKSEL_DPLL_M_MASK (0x7FF << 8) +#define CM_CLKSEL_DPLL_N_SHIFT 0 +#define CM_CLKSEL_DPLL_N_MASK 0x7F + +#define OMAP4_DPLL_MAX_N 127 + +/* CM_SYS_CLKSEL */ +#define CM_SYS_CLKSEL_SYS_CLKSEL_MASK 7 + +/* CM_CLKSEL_CORE */ +#define CLKSEL_CORE_SHIFT 0 +#define CLKSEL_L3_SHIFT 4 +#define CLKSEL_L4_SHIFT 8 + +#define CLKSEL_CORE_X2_DIV_1 0 +#define CLKSEL_L3_CORE_DIV_2 1 +#define CLKSEL_L4_L3_DIV_2 1 + +/* CM_ABE_PLL_REF_CLKSEL */ +#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT 0 +#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK 1 +#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK 0 +#define CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK 1 + +/* CM_BYPCLK_DPLL_IVA */ +#define CM_BYPCLK_DPLL_IVA_CLKSEL_SHIFT 0 +#define CM_BYPCLK_DPLL_IVA_CLKSEL_MASK 3 + +#define DPLL_IVA_CLKSEL_CORE_X2_DIV_2 1 + +/* CM_SHADOW_FREQ_CONFIG1 */ +#define SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK 1 +#define SHADOW_FREQ_CONFIG1_DLL_OVERRIDE_MASK 4 +#define SHADOW_FREQ_CONFIG1_DLL_RESET_MASK 8 + +#define SHADOW_FREQ_CONFIG1_DPLL_EN_SHIFT 8 +#define SHADOW_FREQ_CONFIG1_DPLL_EN_MASK (7 << 8) + +#define SHADOW_FREQ_CONFIG1_M2_DIV_SHIFT 11 +#define SHADOW_FREQ_CONFIG1_M2_DIV_MASK (0x1F << 11) + +/*CM_<clock_domain>__CLKCTRL */ +#define CD_CLKCTRL_CLKTRCTRL_SHIFT 0 +#define CD_CLKCTRL_CLKTRCTRL_MASK 3 + +#define CD_CLKCTRL_CLKTRCTRL_NO_SLEEP 0 +#define CD_CLKCTRL_CLKTRCTRL_SW_SLEEP 1 +#define CD_CLKCTRL_CLKTRCTRL_SW_WKUP 2 +#define CD_CLKCTRL_CLKTRCTRL_HW_AUTO 3 + + +/* CM_<clock_domain>_<module>_CLKCTRL */ +#define MODULE_CLKCTRL_MODULEMODE_SHIFT 0 +#define MODULE_CLKCTRL_MODULEMODE_MASK 3 +#define MODULE_CLKCTRL_IDLEST_SHIFT 16 +#define MODULE_CLKCTRL_IDLEST_MASK (3 << 16) + +#define MODULE_CLKCTRL_MODULEMODE_SW_DISABLE 0 +#define MODULE_CLKCTRL_MODULEMODE_HW_AUTO 1 +#define MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN 2 + +#define MODULE_CLKCTRL_IDLEST_FULLY_FUNCTIONAL 0 +#define MODULE_CLKCTRL_IDLEST_TRANSITIONING 1 +#define MODULE_CLKCTRL_IDLEST_IDLE 2 +#define MODULE_CLKCTRL_IDLEST_DISABLED 3 + +/* CM_L4PER_GPIO4_CLKCTRL */ +#define GPIO4_CLKCTRL_OPTFCLKEN_MASK (1 << 8) + +/* CM_L3INIT_HSMMCn_CLKCTRL */ +#define HSMMC_CLKCTRL_CLKSEL_MASK (1 << 24) + +/* CM_WKUP_GPTIMER1_CLKCTRL */ +#define GPTIMER1_CLKCTRL_CLKSEL_MASK (1 << 24) + +/* CM_CAM_ISS_CLKCTRL */ +#define ISS_CLKCTRL_OPTFCLKEN_MASK (1 << 8) + +/* CM_DSS_DSS_CLKCTRL */ +#define DSS_CLKCTRL_OPTFCLKEN_MASK 0xF00 + +/* CM_L3INIT_USBPHY_CLKCTRL */ +#define USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK 8 + +/* Clock frequencies */ +#define OMAP_SYS_CLK_FREQ_38_4_MHZ 38400000 +#define OMAP_SYS_CLK_IND_38_4_MHZ 6 +#define OMAP_32K_CLK_FREQ 32768 + +/* PRM_VC_CFG_I2C_CLK */ +#define PRM_VC_CFG_I2C_CLK_SCLH_SHIFT 0 +#define PRM_VC_CFG_I2C_CLK_SCLH_MASK 0xFF +#define PRM_VC_CFG_I2C_CLK_SCLL_SHIFT 8 +#define PRM_VC_CFG_I2C_CLK_SCLL_MASK (0xFF << 8) + +/* PRM_VC_VAL_BYPASS */ +#define PRM_VC_I2C_CHANNEL_FREQ_KHZ 400 + +#define PRM_VC_VAL_BYPASS_VALID_BIT 0x1000000 +#define PRM_VC_VAL_BYPASS_SLAVEADDR_SHIFT 0 +#define PRM_VC_VAL_BYPASS_SLAVEADDR_MASK 0x7F +#define PRM_VC_VAL_BYPASS_REGADDR_SHIFT 8 +#define PRM_VC_VAL_BYPASS_REGADDR_MASK 0xFF +#define PRM_VC_VAL_BYPASS_DATA_SHIFT 16 +#define PRM_VC_VAL_BYPASS_DATA_MASK 0xFF + +#define SMPS_I2C_SLAVE_ADDR 0x12 +#define SMPS_REG_ADDR_VCORE1 0x55 +#define SMPS_REG_ADDR_VCORE2 0x5B +#define SMPS_REG_ADDR_VCORE3 0x61 + +#define PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV 607700 +#define PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV 709000 + +/* Defines for DPLL setup */ +#define DPLL_LOCKED_FREQ_TOLERANCE_0 0 +#define DPLL_LOCKED_FREQ_TOLERANCE_500_KHZ 500 +#define DPLL_LOCKED_FREQ_TOLERANCE_1_MHZ 1000 + +#define DPLL_NO_LOCK 0 +#define DPLL_LOCK 1 + +#define NUM_SYS_CLKS 7 + +struct dpll_regs { + u32 cm_clkmode_dpll; + u32 cm_idlest_dpll; + u32 cm_autoidle_dpll; + u32 cm_clksel_dpll; + u32 cm_div_m2_dpll; + u32 cm_div_m3_dpll; + u32 cm_div_m4_dpll; + u32 cm_div_m5_dpll; + u32 cm_div_m6_dpll; + u32 cm_div_m7_dpll; +}; + +/* DPLL parameter table */ +struct dpll_params { + u32 m; + u32 n; + u8 m2; + u8 m3; + u8 m4; + u8 m5; + u8 m6; + u8 m7; +}; + +#endif /* _CLOCKS_OMAP4_H_ */ diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h index c10fa18..f871921 100644 --- a/arch/arm/include/asm/arch-omap4/sys_proto.h +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -22,6 +22,7 @@ #define _SYS_PROTO_H_
#include <asm/arch/omap4.h> +#include <asm/arch/clocks.h> #include <asm/io.h> #include <asm/omap_common.h> #include <asm/arch/mux_omap4.h> @@ -31,6 +32,8 @@ struct omap_sysinfo { }; extern const struct omap_sysinfo sysinfo;
+extern struct omap4_prcm_regs *const prcm; + void gpmc_init(void); void watchdog_init(void); u32 get_device_type(void); @@ -41,6 +44,11 @@ u32 wait_on_value(u32, u32, void *, u32); void sdelay(unsigned long); void set_pl310_ctrl_reg(u32 val); void omap_rev_string(char *omap4_rev_string); +void prcm_init(void); +void bypass_dpll(u32 *const base); +void freq_update_core(void); +u32 get_sys_clk_freq(void); +u32 omap4_ddr_clk(void);
static inline u32 running_from_sdram(void) { diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h index d80f665..33caa4e 100644 --- a/arch/arm/include/asm/omap_common.h +++ b/arch/arm/include/asm/omap_common.h @@ -25,6 +25,9 @@ #ifndef _OMAP_COMMON_H_ #define _OMAP_COMMON_H_
+/* Max value for DPLL multiplier M */ +#define OMAP_DPLL_MAX_N 127 + /* HW Init Context */ #define OMAP_INIT_CONTEXT_SPL 0 #define OMAP_INIT_CONTEXT_UBOOT_FROM_NOR 1 diff --git a/tools/omap/clocks_get_m_n.c b/tools/omap/clocks_get_m_n.c new file mode 100644 index 0000000..cfc1760 --- /dev/null +++ b/tools/omap/clocks_get_m_n.c @@ -0,0 +1,197 @@ +/* + * Program for finding M & N values for DPLLs + * To be run on Host PC + * + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Aneesh V aneesh@ti.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <stdlib.h> +#include <stdio.h> +typedef unsigned int u32; +#define MAX_N 127 + +/* + * get_m_n_optimized() - Finds optimal DPLL multiplier(M) and divider(N) + * values based on the reference frequency, required output frequency, + * maximum tolerance for output frequency etc. + * + * target_freq_khz - output frequency required in KHz + * ref_freq_khz - reference(input) frequency in KHz + * m - pointer to computed M value + * n - pointer to computed N value + * tolerance_khz - tolerance for the output frequency. When the algorithm + * succeeds in finding vialble M and N values the corresponding output + * frequency will be in the range: + * [target_freq_khz - tolerance_khz, target_freq_khz] + * + * Formula: + * Fdpll = (2 * M * Fref) / (N + 1) + * + * Considerations for lock-time: + * - Smaller the N, better lock-time, especially lock-time will be + * - For acceptable lock-times: + * Fref / (M + 1) >= 1 MHz + * + * Considerations for power: + * - The difference in power for different N values giving the same + * output is negligible. So, we optimize for lock-time + * + * Hard-constraints: + * - N can not be greater than 127(7 bit field for representing N) + * + * Usage: + * $ gcc clocks_get_m_n.c + * $ ./a.out + */ +int get_m_n_optimized(u32 target_freq_khz, u32 ref_freq_khz, u32 *m, u32 *n, + u32 tolerance_khz) +{ + u32 min_freq = target_freq_khz - tolerance_khz; + u32 max_freq = target_freq_khz; + u32 freq, freq_old; + *n = 1; + while (1) { + *m = min_freq / ref_freq_khz / 2 * (*n) ; + freq_old = 0; + while (1) { + freq = ref_freq_khz * 2 * (*m) / (*n); + if (abs(target_freq_khz - freq_old) <= + abs(target_freq_khz - freq)) { + freq = freq_old; + (*m)--; + break; + } + (*m)++; + freq_old = freq; + } + if (freq >= min_freq && freq <= max_freq) + break; + (*n)++; + if ((*n) > MAX_N + 1) { + printf("ref %d m %d n %d target %d : ", + ref_freq_khz, *m, *n, target_freq_khz); + printf("can not find m & n - please consider" + " increasing tolerance\n"); + return -1; + } + } + (*n)--; + printf("ref %d m %d n %d target %d locked %d\n", + ref_freq_khz, *m, *n, target_freq_khz, freq); + if ((ref_freq_khz / (*n + 1)) < 1000) { + printf("\tREFCLK - CLKINP/(N+1) is less than 1 MHz - less than" + " ideal, locking time will be high!\n"); + } + return 0; +} + +void main(void) +{ + u32 m, n; + printf("\nMPU - 2000000\n"); + get_m_n_optimized(2000000, 12000, &m, &n, 0); + get_m_n_optimized(2000000, 13000, &m, &n, 0); + get_m_n_optimized(2000000, 16800, &m, &n, 800); + get_m_n_optimized(2000000, 19200, &m, &n, 0); + get_m_n_optimized(2000000, 26000, &m, &n, 0); + get_m_n_optimized(2000000, 27000, &m, &n, 0); + get_m_n_optimized(2000000, 38400, &m, &n, 0); + + printf("\nMPU - 1200000\n"); + get_m_n_optimized(1200000, 12000, &m, &n, 0); + get_m_n_optimized(1200000, 13000, &m, &n, 0); + get_m_n_optimized(1200000, 16800, &m, &n, 800); + get_m_n_optimized(1200000, 19200, &m, &n, 0); + get_m_n_optimized(1200000, 26000, &m, &n, 0); + get_m_n_optimized(1200000, 27000, &m, &n, 0); + get_m_n_optimized(1200000, 38400, &m, &n, 0); + + printf("\nMPU - 1584000\n"); + get_m_n_optimized(1584000, 12000, &m, &n, 0); + get_m_n_optimized(1584000, 13000, &m, &n, 0); + get_m_n_optimized(1584000, 16800, &m, &n, 400); + get_m_n_optimized(1584000, 19200, &m, &n, 0); + get_m_n_optimized(1584000, 26000, &m, &n, 0); + get_m_n_optimized(1584000, 27000, &m, &n, 0); + get_m_n_optimized(1584000, 38400, &m, &n, 0); + + printf("\nCore 1600000\n"); + get_m_n_optimized(1600000, 12000, &m, &n, 0); + get_m_n_optimized(1600000, 13000, &m, &n, 0); + get_m_n_optimized(1600000, 16800, &m, &n, 200); + get_m_n_optimized(1600000, 19200, &m, &n, 0); + get_m_n_optimized(1600000, 26000, &m, &n, 0); + get_m_n_optimized(1600000, 27000, &m, &n, 0); + get_m_n_optimized(1600000, 38400, &m, &n, 0); + + printf("\nPER 1536000\n"); + get_m_n_optimized(1536000, 12000, &m, &n, 0); + get_m_n_optimized(1536000, 13000, &m, &n, 0); + get_m_n_optimized(1536000, 16800, &m, &n, 0); + get_m_n_optimized(1536000, 19200, &m, &n, 0); + get_m_n_optimized(1536000, 26000, &m, &n, 0); + get_m_n_optimized(1536000, 27000, &m, &n, 0); + get_m_n_optimized(1536000, 38400, &m, &n, 0); + + printf("\nIVA 1862000\n"); + get_m_n_optimized(1862000, 12000, &m, &n, 0); + get_m_n_optimized(1862000, 13000, &m, &n, 0); + get_m_n_optimized(1862000, 16800, &m, &n, 0); + get_m_n_optimized(1862000, 19200, &m, &n, 900); + get_m_n_optimized(1862000, 26000, &m, &n, 0); + get_m_n_optimized(1862000, 27000, &m, &n, 0); + get_m_n_optimized(1862000, 38400, &m, &n, 800); + + printf("\nABE 196608 sys clk\n"); + get_m_n_optimized(196608, 12000, &m, &n, 700); + get_m_n_optimized(196608, 13000, &m, &n, 200); + get_m_n_optimized(196608, 16800, &m, &n, 700); + get_m_n_optimized(196608, 19200, &m, &n, 400); + get_m_n_optimized(196608, 26000, &m, &n, 200); + get_m_n_optimized(196608, 27000, &m, &n, 900); + get_m_n_optimized(196608, 38400, &m, &n, 0); + + printf("\nABE 196608 32K\n"); + get_m_n_optimized(196608000/4, 32768, &m, &n, 0); + + printf("\nUSB 1920000\n"); + get_m_n_optimized(1920000, 12000, &m, &n, 0); + get_m_n_optimized(1920000, 13000, &m, &n, 0); + get_m_n_optimized(1920000, 16800, &m, &n, 0); + get_m_n_optimized(1920000, 19200, &m, &n, 0); + get_m_n_optimized(1920000, 26000, &m, &n, 0); + get_m_n_optimized(1920000, 27000, &m, &n, 0); + get_m_n_optimized(1920000, 38400, &m, &n, 0); + + printf("\nCore ES1 1523712\n"); + get_m_n_optimized(1524000, 12000, &m, &n, 100); + get_m_n_optimized(1524000, 13000, &m, &n, 0); + get_m_n_optimized(1524000, 16800, &m, &n, 0); + get_m_n_optimized(1524000, 19200, &m, &n, 0); + get_m_n_optimized(1524000, 26000, &m, &n, 0); + get_m_n_optimized(1524000, 27000, &m, &n, 0); + + /* exact recommendation for SDPs */ + get_m_n_optimized(1523712, 38400, &m, &n, 0); + +}