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 47 /* enable early the console */ 48 gd->baudrate = CONFIG_BAUDRATE; 49 serial_init(); 50 gd->have_console = 1; 51 if (read_eeprom() < 0) 52 puts("Could not get board ID.\n"); 53 54 enable_board_pin_mux(); 55 } 56 57 void sdram_init(void) 58 { 59 spl_siemens_board_init(); 60 board_init_ddr(); 61 62 return; 63 } 64 #endif /* #ifdef CONFIG_SPL_BUILD */ 65 66 #ifndef CONFIG_SPL_BUILD 67 /* 68 * Basic board specific setup. Pinmux has been handled already. 69 */ 70 int board_init(void) 71 { 72 #if defined(CONFIG_HW_WATCHDOG) 73 hw_watchdog_init(); 74 #endif /* defined(CONFIG_HW_WATCHDOG) */ 75 i2c_set_bus_num(0); 76 if (read_eeprom() < 0) 77 puts("Could not get board ID.\n"); 78 79 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; 80 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 81 82 #ifdef CONFIG_FACTORYSET 83 factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR); 84 #endif 85 gpmc_init(); 86 87 #ifdef CONFIG_VIDEO 88 board_video_init(); 89 #endif 90 91 return 0; 92 } 93 #endif /* #ifndef CONFIG_SPL_BUILD */ 94 95 #define OSC (V_OSCK/1000000) 96 const struct dpll_params dpll_ddr = { 97 DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1}; 98 99 const struct dpll_params *get_dpll_ddr_params(void) 100 { 101 return &dpll_ddr; 102 } 103 104 #ifndef CONFIG_SPL_BUILD 105 #if defined(BOARD_DFU_BUTTON_GPIO) 106 /* 107 * This command returns the status of the user button on 108 * Input - none 109 * Returns - 1 if button is held down 110 * 0 if button is not held down 111 */ 112 static int 113 do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 114 { 115 int button = 0; 116 int gpio; 117 118 gpio = BOARD_DFU_BUTTON_GPIO; 119 gpio_request(gpio, "DFU"); 120 gpio_direction_input(gpio); 121 if (gpio_get_value(gpio)) 122 button = 1; 123 else 124 button = 0; 125 126 gpio_free(gpio); 127 128 return button; 129 } 130 131 U_BOOT_CMD( 132 dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton, 133 "Return the status of the DFU button", 134 "" 135 ); 136 #endif 137 /* 138 * This command sets led 139 * Input - name of led 140 * value of led 141 * Returns - 1 if input does not match 142 * 0 if led was set 143 */ 144 static int 145 do_setled(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 146 { 147 int gpio = 0; 148 if (argc != 3) 149 goto exit; 150 #if defined(BOARD_STATUS_LED) 151 if (!strcmp(argv[1], "stat")) 152 gpio = BOARD_STATUS_LED; 153 #endif 154 #if defined(BOARD_DFU_BUTTON_LED) 155 if (!strcmp(argv[1], "dfu")) 156 gpio = BOARD_DFU_BUTTON_LED; 157 #endif 158 /* If argument does not mach exit */ 159 if (gpio == 0) 160 goto exit; 161 gpio_request(gpio, ""); 162 gpio_direction_output(gpio, 1); 163 if (!strcmp(argv[2], "1")) 164 gpio_set_value(gpio, 1); 165 else 166 gpio_set_value(gpio, 0); 167 return 0; 168 exit: 169 return 1; 170 } 171 172 U_BOOT_CMD( 173 led, CONFIG_SYS_MAXARGS, 2, do_setled, 174 "Set led on or off", 175 "dfu val - set dfu led\nled stat val - set status led" 176 ); 177 178 static int 179 do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 180 { 181 printf("\n\n\n Go into infinite loop\n\n\n"); 182 while (1) 183 ; 184 return 0; 185 }; 186 187 U_BOOT_CMD( 188 testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt, 189 "Sends U-Boot into infinite loop", 190 "" 191 ); 192 #endif /* !CONFIG_SPL_BUILD */ 193