board/BuR/common/common.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * common.c
   4  *
   5  * common board functions for B&R boards
   6  *
   7  * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
   8  * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
   9  *
  10  */
  11 #include <log.h>
  12 #include <version.h>
  13 #include <common.h>
  14 #include <env.h>
  15 #include <fdtdec.h>
  16 #include <i2c.h>
  17 #include <asm/global_data.h>
  18 #include <linux/delay.h>
  19 #include "bur_common.h"
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 /* --------------------------------------------------------------------------*/
  24
  25 int ft_board_setup(void *blob, struct bd_info *bd)
  26 {
  27         int nodeoffset;
  28
  29         nodeoffset = fdt_path_offset(blob, "/factory-settings");
  30         if (nodeoffset < 0) {
  31                 printf("%s: cannot find /factory-settings, trying /fset\n",
  32                        __func__);
  33                 nodeoffset = fdt_path_offset(blob, "/fset");
  34                 if (nodeoffset < 0) {
  35                         printf("%s: cannot find /fset.\n", __func__);
  36                         return 0;
  37                 }
  38         }
  39
  40         if (fdt_setprop(blob, nodeoffset, "bl-version",
  41                         PLAIN_VERSION, strlen(PLAIN_VERSION)) != 0) {
  42                 printf("%s: no 'bl-version' prop in fdt!\n", __func__);
  43                 return 0;
  44         }
  45         return 0;
  46 }
  47
  48 int brdefaultip_setup(int bus, int chip)
  49 {
  50         int rc;
  51         struct udevice *i2cdev;
  52         u8 u8buf = 0;
  53         char defip[256] = { 0 };
  54
  55         rc = i2c_get_chip_for_busnum(bus, chip, 2, &i2cdev);
  56         if (rc != 0) {
  57                 printf("WARN: cannot probe baseboard EEPROM!\n");
  58                 return -1;
  59         }
  60
  61         rc = dm_i2c_read(i2cdev, 0, &u8buf, 1);
  62         if (rc != 0) {
  63                 printf("WARN: cannot read baseboard EEPROM!\n");
  64                 return -1;
  65         }
  66
  67         if (u8buf != 0xFF)
  68                 snprintf(defip, sizeof(defip),
  69                          "if test -r ${ipaddr}; then; else setenv ipaddr 192.168.60.%d; setenv serverip 192.168.60.254; setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;",
  70                          u8buf);
  71         else
  72                 strncpy(defip,
  73                         "if test -r ${ipaddr}; then; else setenv ipaddr 192.168.60.1; setenv serverip 192.168.60.254; setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;",
  74                         sizeof(defip));
  75
  76         env_set("brdefaultip", defip);
  77         env_set_hex("board_id", u8buf);
  78
  79         return 0;
  80 }
  81
  82 int overwrite_console(void)
  83 {
  84         return 1;
  85 }
  86
  87 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_AM33XX)
  88 #include <asm/arch/hardware.h>
  89 #include <asm/arch/omap.h>
  90 #include <asm/arch/clock.h>
  91 #include <asm/arch/sys_proto.h>
  92 #include <power/tps65217.h>
  93
  94 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  95
  96 void pmicsetup(u32 mpupll, unsigned int bus)
  97 {
  98         int mpu_vdd;
  99         int usb_cur_lim;
 100
 101         if (power_tps65217_init(bus)) {
 102                 printf("WARN: cannot setup PMIC 0x24 @ bus #%d, not found!.\n",
 103                        bus);
 104                 return;
 105         }
 106
 107         /* Get the frequency which is defined by device fuses */
 108         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 109         printf("detected max. frequency: %d - ", dpll_mpu_opp100.m);
 110
 111         if (0 != mpupll) {
 112                 dpll_mpu_opp100.m = mpupll;
 113                 printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m);
 114         } else {
 115                 puts("ok.\n");
 116         }
 117         /*
 118          * Increase USB current limit to 1300mA or 1800mA and set
 119          * the MPU voltage controller as needed.
 120          */
 121         if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
 122                 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
 123                 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
 124         } else {
 125                 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
 126                 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
 127         }
 128
 129         if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
 130                                usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 131                 puts("tps65217_reg_write failure\n");
 132
 133         /* Set DCDC3 (CORE) voltage to 1.125V */
 134         if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 135                                     TPS65217_DCDC_VOLT_SEL_1125MV)) {
 136                 puts("tps65217_voltage_update failure\n");
 137                 return;
 138         }
 139
 140         /* Set CORE Frequencies to OPP100 */
 141         do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 142
 143         /* Set DCDC2 (MPU) voltage */
 144         if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 145                 puts("tps65217_voltage_update failure\n");
 146                 return;
 147         }
 148
 149         /* Set LDO3 to 1.8V */
 150         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 151                                TPS65217_DEFLS1,
 152                                TPS65217_LDO_VOLTAGE_OUT_1_8,
 153                                TPS65217_LDO_MASK))
 154                 puts("tps65217_reg_write failure\n");
 155         /* Set LDO4 to 3.3V */
 156         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 157                                TPS65217_DEFLS2,
 158                                TPS65217_LDO_VOLTAGE_OUT_3_3,
 159                                TPS65217_LDO_MASK))
 160                 puts("tps65217_reg_write failure\n");
 161
 162         /* Set MPU Frequency to what we detected now that voltages are set */
 163         do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 164         /* Set PWR_EN bit in Status Register */
 165         tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
 166                            TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF);
 167 }
 168
 169 void set_uart_mux_conf(void)
 170 {
 171         enable_uart0_pin_mux();
 172 }
 173
 174 void set_mux_conf_regs(void)
 175 {
 176         enable_board_pin_mux();
 177 }
 178
 179 #endif /* CONFIG_SPL_BUILD && CONFIG_AM33XX */