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 #ifndef CONFIG_SPL_BUILD 100 #if defined(BOARD_DFU_BUTTON_GPIO) 101 /* 102 * This command returns the status of the user button on 103 * Input - none 104 * Returns - 1 if button is held down 105 * 0 if button is not held down 106 */ 107 static int 108 do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 109 { 110 int button = 0; 111 int gpio; 112 113 gpio = BOARD_DFU_BUTTON_GPIO; 114 gpio_request(gpio, "DFU"); 115 gpio_direction_input(gpio); 116 if (gpio_get_value(gpio)) 117 button = 1; 118 else 119 button = 0; 120 121 gpio_free(gpio); 122 123 return button; 124 } 125 126 U_BOOT_CMD( 127 dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton, 128 "Return the status of the DFU button", 129 "" 130 ); 131 #endif 132 /* 133 * This command sets led 134 * Input - name of led 135 * value of led 136 * Returns - 1 if input does not match 137 * 0 if led was set 138 */ 139 static int 140 do_setled(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 141 { 142 int gpio = 0; 143 if (argc != 3) 144 goto exit; 145 #if defined(BOARD_STATUS_LED) 146 if (!strcmp(argv[1], "stat")) 147 gpio = BOARD_STATUS_LED; 148 #endif 149 #if defined(BOARD_DFU_BUTTON_LED) 150 if (!strcmp(argv[1], "dfu")) 151 gpio = BOARD_DFU_BUTTON_LED; 152 #endif 153 /* If argument does not mach exit */ 154 if (gpio == 0) 155 goto exit; 156 gpio_request(gpio, ""); 157 gpio_direction_output(gpio, 1); 158 if (!strcmp(argv[2], "1")) 159 gpio_set_value(gpio, 1); 160 else 161 gpio_set_value(gpio, 0); 162 return 0; 163 exit: 164 return 1; 165 } 166 167 U_BOOT_CMD( 168 led, CONFIG_SYS_MAXARGS, 2, do_setled, 169 "Set led on or off", 170 "dfu val - set dfu led\nled stat val - set status led" 171 ); 172 173 static int 174 do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 175 { 176 printf("\n\n\n Go into infinite loop\n\n\n"); 177 while (1) 178 ; 179 return 0; 180 }; 181 182 U_BOOT_CMD( 183 testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt, 184 "Sends U-Boot into infinite loop", 185 "" 186 ); 187 #endif /* !CONFIG_SPL_BUILD */ 188