board/siemens/common/board.c

   1 /*
   2  * Common board functions for siemens AM335X based boards
   3  * (C) Copyright 2013 Siemens Schweiz AG
   4  * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
   5  *
   6  * Based on:
   7  * U-Boot file:/board/ti/am335x/board.c
   8  * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
   9  *
  10  * SPDX-License-Identifier:     GPL-2.0+
  11  */
  12
  13 #include <common.h>
  14 #include <errno.h>
  15 #include <spl.h>
  16 #include <asm/arch/cpu.h>
  17 #include <asm/arch/hardware.h>
  18 #include <asm/arch/omap.h>
  19 #include <asm/arch/ddr_defs.h>
  20 #include <asm/arch/clock.h>
  21 #include <asm/arch/gpio.h>
  22 #include <asm/arch/mmc_host_def.h>
  23 #include <asm/arch/sys_proto.h>
  24 #include <asm/io.h>
  25 #include <asm/emif.h>
  26 #include <asm/gpio.h>
  27 #include <i2c.h>
  28 #include <miiphy.h>
  29 #include <cpsw.h>
  30 #include <watchdog.h>
  31 #include "../common/factoryset.h"
  32
  33 DECLARE_GLOBAL_DATA_PTR;
  34
  35 #ifdef CONFIG_SPL_BUILD
  36 void set_uart_mux_conf(void)
  37 {
  38         enable_uart0_pin_mux();
  39 }
  40
  41 void set_mux_conf_regs(void)
  42 {
  43         /* Initalize the board header */
  44         enable_i2c0_pin_mux();
  45         i2c_set_bus_num(0);
  46         if (read_eeprom() < 0)
  47                 puts("Could not get board ID.\n");
  48
  49         enable_board_pin_mux();
  50 }
  51
  52 void sdram_init(void)
  53 {
  54         spl_siemens_board_init();
  55         board_init_ddr();
  56
  57         return;
  58 }
  59 #endif /* #ifdef CONFIG_SPL_BUILD */
  60
  61 #ifndef CONFIG_SPL_BUILD
  62 /*
  63  * Basic board specific setup.  Pinmux has been handled already.
  64  */
  65 int board_init(void)
  66 {
  67 #if defined(CONFIG_HW_WATCHDOG)
  68         hw_watchdog_init();
  69 #endif /* defined(CONFIG_HW_WATCHDOG) */
  70         i2c_set_bus_num(0);
  71         if (read_eeprom() < 0)
  72                 puts("Could not get board ID.\n");
  73
  74         gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
  75         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  76
  77 #ifdef CONFIG_FACTORYSET
  78         factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR);
  79 #endif
  80         gpmc_init();
  81
  82 #ifdef CONFIG_VIDEO
  83         board_video_init();
  84 #endif
  85
  86         return 0;
  87 }
  88 #endif /* #ifndef CONFIG_SPL_BUILD */
  89
  90 #define OSC     (V_OSCK/1000000)
  91 const struct dpll_params dpll_ddr = {
  92                 DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
  93
  94 const struct dpll_params *get_dpll_ddr_params(void)
  95 {
  96         return &dpll_ddr;
  97 }
  98
  99 #ifdef CONFIG_BOARD_LATE_INIT
 100 int board_late_init(void)
 101 {
 102         omap_nand_switch_ecc(1, 8);
 103
 104         return 0;
 105 }
 106 #endif
 107
 108 #ifndef CONFIG_SPL_BUILD
 109 #if defined(BOARD_DFU_BUTTON_GPIO)
 110 /*
 111  * This command returns the status of the user button on
 112  * Input - none
 113  * Returns -    1 if button is held down
 114  *              0 if button is not held down
 115  */
 116 static int
 117 do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 118 {
 119         int button = 0;
 120         int gpio;
 121
 122         gpio = BOARD_DFU_BUTTON_GPIO;
 123         gpio_request(gpio, "DFU");
 124         gpio_direction_input(gpio);
 125         if (gpio_get_value(gpio))
 126                 button = 1;
 127         else
 128                 button = 0;
 129
 130         gpio_free(gpio);
 131
 132         return button;
 133 }
 134
 135 U_BOOT_CMD(
 136         dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
 137         "Return the status of the DFU button",
 138         ""
 139 );
 140 #endif
 141 /*
 142  * This command sets led
 143  * Input -      name of led
 144  *              value of led
 145  * Returns -    1 if input does not match
 146  *              0 if led was set
 147  */
 148 static int
 149 do_setled(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 150 {
 151         int gpio = 0;
 152         if (argc != 3)
 153                 goto exit;
 154 #if defined(BOARD_STATUS_LED)
 155         if (!strcmp(argv[1], "stat"))
 156                 gpio = BOARD_STATUS_LED;
 157 #endif
 158 #if defined(BOARD_DFU_BUTTON_LED)
 159         if (!strcmp(argv[1], "dfu"))
 160                 gpio = BOARD_DFU_BUTTON_LED;
 161 #endif
 162         /* If argument does not mach exit */
 163         if (gpio == 0)
 164                 goto exit;
 165         gpio_request(gpio, "");
 166         gpio_direction_output(gpio, 1);
 167         if (!strcmp(argv[2], "1"))
 168                 gpio_set_value(gpio, 1);
 169         else
 170                 gpio_set_value(gpio, 0);
 171         return 0;
 172 exit:
 173         return 1;
 174 }
 175
 176 U_BOOT_CMD(
 177         led, CONFIG_SYS_MAXARGS, 2, do_setled,
 178         "Set led on or off",
 179         "dfu val - set dfu led\nled stat val - set status led"
 180 );
 181
 182 static int
 183 do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 184 {
 185         printf("\n\n\n Go into infinite loop\n\n\n");
 186         while (1)
 187                 ;
 188         return 0;
 189 };
 190
 191 U_BOOT_CMD(
 192         testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
 193         "Sends U-Boot into infinite loop",
 194         ""
 195 );
 196 #endif /* !CONFIG_SPL_BUILD */