1 /* 2 * Copyright (C) 2016 Compulab, Ltd. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <spl.h> 9 #include <i2c.h> 10 #include <asm/arch/clock.h> 11 #include <asm/arch/ddr_defs.h> 12 #include <asm/gpio.h> 13 #include <power/pmic.h> 14 #include <power/tps65218.h> 15 #include "board.h" 16 17 DECLARE_GLOBAL_DATA_PTR; 18 19 const struct dpll_params dpll_mpu = { 800, 24, 1, -1, -1, -1, -1 }; 20 const struct dpll_params dpll_core = { 1000, 24, -1, -1, 10, 8, 4 }; 21 const struct dpll_params dpll_per = { 960, 24, 5, -1, -1, -1, -1 }; 22 const struct dpll_params dpll_ddr = { 400, 23, 1, -1, 1, -1, -1 }; 23 24 const struct ctrl_ioregs ioregs_ddr3 = { 25 .cm0ioctl = DDR3_ADDRCTRL_IOCTRL_VALUE, 26 .cm1ioctl = DDR3_ADDRCTRL_WD0_IOCTRL_VALUE, 27 .cm2ioctl = DDR3_ADDRCTRL_WD1_IOCTRL_VALUE, 28 .dt0ioctl = DDR3_DATA0_IOCTRL_VALUE, 29 .dt1ioctl = DDR3_DATA0_IOCTRL_VALUE, 30 .dt2ioctrl = DDR3_DATA0_IOCTRL_VALUE, 31 .dt3ioctrl = DDR3_DATA0_IOCTRL_VALUE, 32 .emif_sdram_config_ext = 0x0143, 33 }; 34 35 /* EMIF DDR3 Configurations are different for production AM43X GP EVMs */ 36 struct emif_regs ddr3_emif_regs = { 37 .sdram_config = 0x638413B2, 38 .ref_ctrl = 0x00000C30, 39 .sdram_tim1 = 0xEAAAD4DB, 40 .sdram_tim2 = 0x266B7FDA, 41 .sdram_tim3 = 0x107F8678, 42 .read_idle_ctrl = 0x00050000, 43 .zq_config = 0x50074BE4, 44 .temp_alert_config = 0x0, 45 .emif_ddr_phy_ctlr_1 = 0x0E004008, 46 .emif_ddr_ext_phy_ctrl_1 = 0x08020080, 47 .emif_ddr_ext_phy_ctrl_2 = 0x00000066, 48 .emif_ddr_ext_phy_ctrl_3 = 0x00000091, 49 .emif_ddr_ext_phy_ctrl_4 = 0x000000B9, 50 .emif_ddr_ext_phy_ctrl_5 = 0x000000E6, 51 .emif_rd_wr_exec_thresh = 0x80000405, 52 .emif_prio_class_serv_map = 0x80000001, 53 .emif_connect_id_serv_1_map = 0x80000094, 54 .emif_connect_id_serv_2_map = 0x00000000, 55 .emif_cos_config = 0x000FFFFF 56 }; 57 58 const u32 ext_phy_ctrl_const_base_ddr3[] = { 59 0x00000000, 60 0x00000044, 61 0x00000044, 62 0x00000046, 63 0x00000046, 64 0x00000000, 65 0x00000059, 66 0x00000077, 67 0x00000093, 68 0x000000A8, 69 0x00000000, 70 0x00000019, 71 0x00000037, 72 0x00000053, 73 0x00000068, 74 0x00000000, 75 0x0, 76 0x0, 77 0x40000000, 78 0x08102040 79 }; 80 81 void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size) 82 { 83 *regs = ext_phy_ctrl_const_base_ddr3; 84 *size = ARRAY_SIZE(ext_phy_ctrl_const_base_ddr3); 85 } 86 87 const struct dpll_params *get_dpll_ddr_params(void) 88 { 89 return &dpll_ddr; 90 } 91 92 const struct dpll_params *get_dpll_mpu_params(void) 93 { 94 return &dpll_mpu; 95 } 96 97 const struct dpll_params *get_dpll_core_params(void) 98 { 99 return &dpll_core; 100 } 101 102 const struct dpll_params *get_dpll_per_params(void) 103 { 104 return &dpll_per; 105 } 106 107 void scale_vcores(void) 108 { 109 set_i2c_pin_mux(); 110 i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); 111 if (i2c_probe(TPS65218_CHIP_PM)) 112 return; 113 114 tps65218_voltage_update(TPS65218_DCDC1, TPS65218_DCDC_VOLT_SEL_1100MV); 115 tps65218_voltage_update(TPS65218_DCDC2, TPS65218_DCDC_VOLT_SEL_1100MV); 116 } 117 118 void sdram_init(void) 119 { 120 unsigned long ram_size; 121 122 config_ddr(0, &ioregs_ddr3, NULL, NULL, &ddr3_emif_regs, 0); 123 ram_size = get_ram_size((long int *)CONFIG_SYS_SDRAM_BASE, 0x80000000); 124 if (ram_size == 0x80000000 || 125 ram_size == 0x40000000 || 126 ram_size == 0x20000000) 127 return; 128 129 ddr3_emif_regs.sdram_config = 0x638453B2; 130 config_ddr(0, &ioregs_ddr3, NULL, NULL, &ddr3_emif_regs, 0); 131 ram_size = get_ram_size((long int *)CONFIG_SYS_SDRAM_BASE, 0x80000000); 132 if (ram_size == 0x08000000) 133 return; 134 135 hang(); 136 } 137 138