/* * * Clock initialization for OMAP5 * * (C) Copyright 2010 * Texas Instruments, * * Aneesh V * Sricharan R * * Based on previous work by: * Santosh Shilimkar * Rajendra Nayak * * 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 #include #include #include #include #include #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 struct omap5_prcm_regs *const prcm = (struct omap5_prcm_regs *)0x4A004100; const u32 sys_clk_array[8] = { 12000000, /* 12 MHz */ 0, /* NA */ 16800000, /* 16.8 MHz */ 19200000, /* 19.2 MHz */ 26000000, /* 26 MHz */ 0, /* NA */ 38400000, /* 38.4 MHz */ }; static const struct dpll_params mpu_dpll_params_1_5ghz[NUM_SYS_CLKS] = { {125, 0, 1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {625, 6, 1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {625, 7, 1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {750, 12, 1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {625, 15, 1, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */ }; static const struct dpll_params mpu_dpll_params_2ghz[NUM_SYS_CLKS] = { {500, 2, 1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {2024, 16, 1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {625, 5, 1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {1000, 12, 1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {625, 11, 1, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */ }; static const struct dpll_params mpu_dpll_params_1100mhz[NUM_SYS_CLKS] = { {275, 2, 1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {1375, 20, 1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {1375, 23, 1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {550, 12, 1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {1375, 47, 1, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */ }; static const struct dpll_params mpu_dpll_params_800mhz[NUM_SYS_CLKS] = { {200, 2, 1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {1000, 20, 1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {375, 8, 1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {400, 12, 1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {375, 17, 1, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */ }; static const struct dpll_params mpu_dpll_params_400mhz[NUM_SYS_CLKS] = { {200, 2, 2, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {1000, 20, 2, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {375, 8, 2, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {400, 12, 2, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {375, 17, 2, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */ }; static const struct dpll_params mpu_dpll_params_550mhz[NUM_SYS_CLKS] = { {275, 2, 2, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {1375, 20, 2, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {1375, 23, 2, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {550, 12, 2, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {1375, 47, 2, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */ }; static const struct dpll_params core_dpll_params_2128mhz_ddr532[NUM_SYS_CLKS] = { {266, 2, 2, 5, 8, 4, 62, 5, 5, 7}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {570, 8, 2, 5, 8, 4, 62, 5, 5, 7}, /* 16.8 MHz */ {665, 11, 2, 5, 8, 4, 62, 5, 5, 7}, /* 19.2 MHz */ {532, 12, 2, 5, 8, 4, 62, 5, 5, 7}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {665, 23, 2, 5, 8, 4, 62, 5, 5, 7} /* 38.4 MHz */ }; static const struct dpll_params core_dpll_params_2128mhz_ddr266[NUM_SYS_CLKS] = { {266, 2, 4, 5, 8, 8, 62, 10, 10, 14}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {570, 8, 4, 5, 8, 8, 62, 10, 10, 14}, /* 16.8 MHz */ {665, 11, 4, 5, 8, 8, 62, 10, 10, 14}, /* 19.2 MHz */ {532, 12, 4, 8, 8, 8, 62, 10, 10, 14}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {665, 23, 4, 8, 8, 8, 62, 10, 10, 14} /* 38.4 MHz */ }; static const struct dpll_params per_dpll_params_768mhz[NUM_SYS_CLKS] = { {32, 0, 4, 3, 6, 4, -1, 2, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {160, 6, 4, 3, 6, 4, -1, 2, -1, -1}, /* 16.8 MHz */ {20, 0, 4, 3, 6, 4, -1, 2, -1, -1}, /* 19.2 MHz */ {192, 12, 4, 3, 6, 4, -1, 2, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {10, 0, 4, 3, 6, 4, -1, 2, -1, -1} /* 38.4 MHz */ }; static const struct dpll_params iva_dpll_params_2330mhz[NUM_SYS_CLKS] = { {1165, 11, -1, -1, 5, 6, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {2011, 28, -1, -1, 5, 6, -1, -1, -1, -1}, /* 16.8 MHz */ {1881, 30, -1, -1, 5, 6, -1, -1, -1, -1}, /* 19.2 MHz */ {1165, 25, -1, -1, 5, 6, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {1972, 64, -1, -1, 5, 6, -1, -1, -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, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {35, 5, 1, 1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {46, 8, 1, 1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {34, 8, 1, 1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {64, 24, 1, 1, -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, -1, -1 }; static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = { {400, 4, 2, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */ {400, 6, 2, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ {400, 7, 2, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ {480, 12, 2, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */ {400, 15, 2, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */ }; void setup_post_dividers(u32 *const base, const struct dpll_params *params) { struct dpll_regs *const dpll_regs = (struct dpll_regs *)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->h11 >= 0) writel(params->h11, &dpll_regs->cm_div_h11_dpll); if (params->h12 >= 0) writel(params->h12, &dpll_regs->cm_div_h12_dpll); if (params->h13 >= 0) writel(params->h13, &dpll_regs->cm_div_h13_dpll); if (params->h14 >= 0) writel(params->h14, &dpll_regs->cm_div_h14_dpll); if (params->h22 >= 0) writel(params->h22, &dpll_regs->cm_div_h22_dpll); if (params->h23 >= 0) writel(params->h23, &dpll_regs->cm_div_h23_dpll); } const struct dpll_params *get_mpu_dpll_params(void) { u32 sysclk_ind = get_sys_clk_index(); return &mpu_dpll_params_800mhz[sysclk_ind]; } const struct dpll_params *get_core_dpll_params(void) { u32 sysclk_ind = get_sys_clk_index(); /* Configuring the DDR to be at 532mhz */ return &core_dpll_params_2128mhz_ddr532[sysclk_ind]; } const struct dpll_params *get_per_dpll_params(void) { u32 sysclk_ind = get_sys_clk_index(); return &per_dpll_params_768mhz[sysclk_ind]; } const struct dpll_params *get_iva_dpll_params(void) { u32 sysclk_ind = get_sys_clk_index(); return &iva_dpll_params_2330mhz[sysclk_ind]; } const struct dpll_params *get_usb_dpll_params(void) { u32 sysclk_ind = get_sys_clk_index(); return &usb_dpll_params_1920mhz[sysclk_ind]; } const struct dpll_params *get_abe_dpll_params(void) { #ifdef CONFIG_SYS_OMAP_ABE_SYSCK u32 sysclk_ind = get_sys_clk_index(); return &abe_dpll_params_sysclk_196608khz[sysclk_ind]; #else return &abe_dpll_params_32k_196608khz; #endif } /* * 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 */ void scale_vcores(void) { u32 volt_core, volt_mpu, volt_mm; omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ); /* Palmas settings */ if (omap_revision() != OMAP5432_ES1_0) { volt_core = VDD_CORE; volt_mpu = VDD_MPU; volt_mm = VDD_MM; } else { volt_core = VDD_CORE_5432; volt_mpu = VDD_MPU_5432; volt_mm = VDD_MM_5432; } do_scale_vcore(SMPS_REG_ADDR_8_CORE, volt_core); do_scale_vcore(SMPS_REG_ADDR_12_MPU, volt_mpu); do_scale_vcore(SMPS_REG_ADDR_45_IVA, volt_mm); if (omap_revision() == OMAP5432_ES1_0) { /* Configure LDO SRAM "magic" bits */ writel(2, &prcm->prm_sldo_core_setup); writel(2, &prcm->prm_sldo_mpu_setup); writel(2, &prcm->prm_sldo_mm_setup); } } u32 get_offset_code(u32 volt_offset) { u32 offset_code, step = 10000; /* 10 mV represented in uV */ volt_offset -= PALMAS_SMPS_BASE_VOLT_UV; offset_code = (volt_offset + step - 1) / step; /* * Offset codes 1-6 all give the base voltage in Palmas * Offset code 0 switches OFF the SMPS */ return offset_code + 6; } /* * Enable essential clock domains, modules and * do some additional special settings needed */ void enable_basic_clocks(void) { 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_l3_2_gpmc_clkctrl, &prcm->cm_memif_emif_1_clkctrl, &prcm->cm_memif_emif_2_clkctrl, &prcm->cm_l4cfg_l4_cfg_clkctrl, &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, 0 }; u32 *const clk_modules_explicit_en_essential[] = { &prcm->cm_wkup_gptimer1_clkctrl, &prcm->cm_l3init_hsmmc1_clkctrl, &prcm->cm_l3init_hsmmc2_clkctrl, &prcm->cm_l4per_gptimer2_clkctrl, &prcm->cm_wkup_wdtimer2_clkctrl, &prcm->cm_l4per_uart3_clkctrl, &prcm->cm_l4per_i2c1_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); /* Set the correct clock dividers for mmc */ setbits_le32(&prcm->cm_l3init_hsmmc1_clkctrl, HSMMC_CLKCTRL_CLKSEL_DIV_MASK); setbits_le32(&prcm->cm_l3init_hsmmc2_clkctrl, HSMMC_CLKCTRL_CLKSEL_DIV_MASK); /* Select 32KHz clock as the source of GPTIMER1 */ setbits_le32(&prcm->cm_wkup_gptimer1_clkctrl, GPTIMER1_CLKCTRL_CLKSEL_MASK); do_enable_clocks(clk_domains_essential, clk_modules_hw_auto_essential, clk_modules_explicit_en_essential, 1); /* Select 384Mhz for GPU as its the POR for ES1.0 */ setbits_le32(&prcm->cm_sgx_sgx_clkctrl, CLKSEL_GPU_HYD_GCLK_MASK); setbits_le32(&prcm->cm_sgx_sgx_clkctrl, CLKSEL_GPU_CORE_GCLK_MASK); /* Enable SCRM OPT clocks for PER and CORE dpll */ setbits_le32(&prcm->cm_wkupaon_scrm_clkctrl, OPTFCLKEN_SCRM_PER_MASK); setbits_le32(&prcm->cm_wkupaon_scrm_clkctrl, OPTFCLKEN_SCRM_CORE_MASK); } void enable_basic_uboot_clocks(void) { u32 *const clk_domains_essential[] = { 0 }; u32 *const clk_modules_hw_auto_essential[] = { 0 }; u32 *const clk_modules_explicit_en_essential[] = { &prcm->cm_l4per_mcspi1_clkctrl, &prcm->cm_l4per_i2c2_clkctrl, &prcm->cm_l4per_i2c3_clkctrl, &prcm->cm_l4per_i2c4_clkctrl, &prcm->cm_l3init_hsusbtll_clkctrl, &prcm->cm_l3init_hsusbhost_clkctrl, &prcm->cm_l3init_fsusb_clkctrl, 0 }; do_enable_clocks(clk_domains_essential, clk_modules_hw_auto_essential, clk_modules_explicit_en_essential, 1); } /* * Enable non-essential clock domains, modules and * do some additional special settings needed */ void enable_non_essential_clocks(void) { 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_l3instr_l3_3_clkctrl, &prcm->cm_l3instr_l3_instr_clkctrl, &prcm->cm_l3instr_intrconn_wp1_clkctrl, &prcm->cm_l3init_hsi_clkctrl, &prcm->cm_l4per_hdq1w_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_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, 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); do_enable_clocks(clk_domains_non_essential, clk_modules_hw_auto_non_essential, clk_modules_explicit_en_non_essential, 0); /* 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); }