uboot/board/bosch/guardian/board.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * board.c
   4 *
   5 * Board functions for Bosch Guardian
   6 *
   7 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
   8 * Copyright (C) 2018 Robert Bosch Power Tools GmbH
   9 */
  10
  11#include <common.h>
  12#include <cpsw.h>
  13#include <dm.h>
  14#include <environment.h>
  15#include <environment.h>
  16#include <errno.h>
  17#include <i2c.h>
  18#include <miiphy.h>
  19#include <panel.h>
  20#include <power/tps65217.h>
  21#include <power/tps65910.h>
  22#include <spl.h>
  23#include <watchdog.h>
  24#include <asm/arch/clock.h>
  25#include <asm/arch/cpu.h>
  26#include <asm/arch/ddr_defs.h>
  27#include <asm/arch/gpio.h>
  28#include <asm/arch/hardware.h>
  29#include <asm/arch/mem.h>
  30#include <asm/arch/mmc_host_def.h>
  31#include <asm/arch/omap.h>
  32#include <asm/arch/sys_proto.h>
  33#include <asm/emif.h>
  34#include <asm/gpio.h>
  35#include <asm/io.h>
  36#include "board.h"
  37
  38DECLARE_GLOBAL_DATA_PTR;
  39
  40#ifndef CONFIG_SKIP_LOWLEVEL_INIT
  41static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  42
  43static const struct ddr_data ddr3_data = {
  44        .datardsratio0 = MT41K128M16JT125K_RD_DQS,
  45        .datawdsratio0 = MT41K128M16JT125K_WR_DQS,
  46        .datafwsratio0 = MT41K128M16JT125K_PHY_FIFO_WE,
  47        .datawrsratio0 = MT41K128M16JT125K_PHY_WR_DATA,
  48};
  49
  50static const struct cmd_control ddr3_cmd_ctrl_data = {
  51        .cmd0csratio = MT41K128M16JT125K_RATIO,
  52        .cmd0iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
  53
  54        .cmd1csratio = MT41K128M16JT125K_RATIO,
  55        .cmd1iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
  56
  57        .cmd2csratio = MT41K128M16JT125K_RATIO,
  58        .cmd2iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
  59};
  60
  61static struct emif_regs ddr3_emif_reg_data = {
  62        .sdram_config = MT41K128M16JT125K_EMIF_SDCFG,
  63        .ref_ctrl = MT41K128M16JT125K_EMIF_SDREF,
  64        .sdram_tim1 = MT41K128M16JT125K_EMIF_TIM1,
  65        .sdram_tim2 = MT41K128M16JT125K_EMIF_TIM2,
  66        .sdram_tim3 = MT41K128M16JT125K_EMIF_TIM3,
  67        .zq_config = MT41K128M16JT125K_ZQ_CFG,
  68        .emif_ddr_phy_ctlr_1 = MT41K128M16JT125K_EMIF_READ_LATENCY,
  69};
  70
  71#define OSC     (V_OSCK / 1000000)
  72const struct dpll_params dpll_ddr = {
  73                400, OSC - 1, 1, -1, -1, -1, -1};
  74
  75void am33xx_spl_board_init(void)
  76{
  77        int mpu_vdd;
  78        int usb_cur_lim;
  79
  80        /* Get the frequency */
  81        dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
  82
  83        if (i2c_probe(TPS65217_CHIP_PM))
  84                return;
  85
  86        /*
  87         * Increase USB current limit to 1300mA or 1800mA and set
  88         * the MPU voltage controller as needed.
  89         */
  90        if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
  91                usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
  92                mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
  93        } else {
  94                usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
  95                mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
  96        }
  97
  98        if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
  99                               TPS65217_POWER_PATH,
 100                               usb_cur_lim,
 101                               TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 102                puts("tps65217_reg_write failure\n");
 103
 104        /* Set DCDC3 (CORE) voltage to 1.125V */
 105        if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 106                                    TPS65217_DCDC_VOLT_SEL_1125MV)) {
 107                puts("tps65217_voltage_update failure\n");
 108                return;
 109        }
 110
 111        /* Set CORE Frequencies to OPP100 */
 112        do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 113
 114        /* Set DCDC2 (MPU) voltage */
 115        if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 116                puts("tps65217_voltage_update failure\n");
 117                return;
 118        }
 119
 120        /*
 121         * Set LDO3 to 1.8V and LDO4 to 3.3V
 122         */
 123        if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 124                               TPS65217_DEFLS1,
 125                               TPS65217_LDO_VOLTAGE_OUT_1_8,
 126                               TPS65217_LDO_MASK))
 127                puts("tps65217_reg_write failure\n");
 128
 129        if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 130                               TPS65217_DEFLS2,
 131                               TPS65217_LDO_VOLTAGE_OUT_3_3,
 132                               TPS65217_LDO_MASK))
 133                puts("tps65217_reg_write failure\n");
 134
 135        /* Set MPU Frequency to what we detected now that voltages are set */
 136        do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 137}
 138
 139const struct dpll_params *get_dpll_ddr_params(void)
 140{
 141        enable_i2c0_pin_mux();
 142        i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 143
 144        return &dpll_ddr;
 145}
 146
 147void set_uart_mux_conf(void)
 148{
 149        enable_uart0_pin_mux();
 150}
 151
 152void set_mux_conf_regs(void)
 153{
 154        enable_board_pin_mux();
 155}
 156
 157const struct ctrl_ioregs ioregs = {
 158        .cm0ioctl               = MT41K128M16JT125K_IOCTRL_VALUE,
 159        .cm1ioctl               = MT41K128M16JT125K_IOCTRL_VALUE,
 160        .cm2ioctl               = MT41K128M16JT125K_IOCTRL_VALUE,
 161        .dt0ioctl               = MT41K128M16JT125K_IOCTRL_VALUE,
 162        .dt1ioctl               = MT41K128M16JT125K_IOCTRL_VALUE,
 163};
 164
 165void sdram_init(void)
 166{
 167        config_ddr(400, &ioregs,
 168                   &ddr3_data,
 169                   &ddr3_cmd_ctrl_data,
 170                   &ddr3_emif_reg_data, 0);
 171}
 172#endif
 173
 174int board_init(void)
 175{
 176#if defined(CONFIG_HW_WATCHDOG)
 177        hw_watchdog_init();
 178#endif
 179
 180        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 181
 182#ifdef CONFIG_NAND
 183        gpmc_init();
 184#endif
 185        return 0;
 186}
 187