// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2011, Texas Instruments, Incorporated - https://www.ti.com/ * Copyright (C) 2017, Grinn - http://grinn-global.com/ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if !CONFIG_IS_ENABLED(SKIP_LOWLEVEL_INIT) static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; static struct module_pin_mux i2c0_pin_mux[] = { {OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)}, /* I2C_DATA */ {OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */ {-1}, }; static struct module_pin_mux nand_pin_mux[] = { {OFFSET(gpmc_ad0), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD0 */ {OFFSET(gpmc_ad1), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD1 */ {OFFSET(gpmc_ad2), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD2 */ {OFFSET(gpmc_ad3), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD3 */ {OFFSET(gpmc_ad4), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD4 */ {OFFSET(gpmc_ad5), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD5 */ {OFFSET(gpmc_ad6), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD6 */ {OFFSET(gpmc_ad7), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD7 */ {OFFSET(gpmc_wait0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* NAND WAIT */ {OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN | RXACTIVE)}, /* NAND_WPN */ {OFFSET(gpmc_csn0), (MODE(0) | PULLUDEN)}, /* NAND_CS0 */ {OFFSET(gpmc_advn_ale), (MODE(0) | PULLUDEN)}, /* NAND_ADV_ALE */ {OFFSET(gpmc_oen_ren), (MODE(0) | PULLUDEN)}, /* NAND_OE */ {OFFSET(gpmc_wen), (MODE(0) | PULLUDEN)}, /* NAND_WEN */ {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLUDEN)}, /* NAND_BE_CLE */ {-1}, }; static void enable_i2c0_pin_mux(void) { configure_module_pin_mux(i2c0_pin_mux); } void chilisom_enable_pin_mux(void) { /* chilisom pin mux */ configure_module_pin_mux(nand_pin_mux); } static const struct ddr_data ddr3_chilisom_data = { .datardsratio0 = MT41K256M16HA125E_RD_DQS, .datawdsratio0 = MT41K256M16HA125E_WR_DQS, .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, }; static const struct cmd_control ddr3_chilisom_cmd_ctrl_data = { .cmd0csratio = MT41K256M16HA125E_RATIO, .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, .cmd1csratio = MT41K256M16HA125E_RATIO, .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, .cmd2csratio = MT41K256M16HA125E_RATIO, .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, }; static struct emif_regs ddr3_chilisom_emif_reg_data = { .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, .ocp_config = 0x00141414, .zq_config = MT41K256M16HA125E_ZQ_CFG, .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, }; void chilisom_spl_board_init(void) { int mpu_vdd; int usb_cur_lim; enable_i2c0_pin_mux(); /* Get the frequency */ dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); if (i2c_probe(TPS65217_CHIP_PM)) return; /* * Increase USB current limit to 1300mA or 1800mA and set * the MPU voltage controller as needed. */ if (dpll_mpu_opp100.m == MPUPLL_M_1000) { usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA; mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV; } else { usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA; mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV; } if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH, usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK)) puts("tps65217_reg_write failure\n"); /* Set DCDC3 (CORE) voltage to 1.125V */ if (tps65217_voltage_update(TPS65217_DEFDCDC3, TPS65217_DCDC_VOLT_SEL_1125MV)) { puts("tps65217_voltage_update failure\n"); return; } /* Set CORE Frequencies to OPP100 */ do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); /* Set DCDC2 (MPU) voltage */ if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) { puts("tps65217_voltage_update failure\n"); return; } /* Set LDO3 to 1.8V and LDO4 to 3.3V */ if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS1, TPS65217_LDO_VOLTAGE_OUT_1_8, TPS65217_LDO_MASK)) puts("tps65217_reg_write failure\n"); if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS2, TPS65217_LDO_VOLTAGE_OUT_3_3, TPS65217_LDO_MASK)) puts("tps65217_reg_write failure\n"); /* Set MPU Frequency to what we detected now that voltages are set */ do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); } #define OSC (V_OSCK/1000000) const struct dpll_params dpll_ddr_chilisom = { 400, OSC-1, 1, -1, -1, -1, -1}; const struct dpll_params *get_dpll_ddr_params(void) { return &dpll_ddr_chilisom; } const struct ctrl_ioregs ioregs_chilisom = { .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, }; void sdram_init(void) { config_ddr(400, &ioregs_chilisom, &ddr3_chilisom_data, &ddr3_chilisom_cmd_ctrl_data, &ddr3_chilisom_emif_reg_data, 0); } #endif /* CONFIG_IS_ENABLED(SKIP_LOWLEVEL_INIT) */