1 // SPDX-License-Identifier: GPL-2.0+
3 * Common board functions for siemens AM335X based boards
4 * (C) Copyright 2013 Siemens Schweiz AG
5 * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
8 * U-Boot file:/board/ti/am335x/board.c
9 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
18 #include <asm/arch/cpu.h>
19 #include <asm/arch/hardware.h>
20 #include <asm/arch/omap.h>
21 #include <asm/arch/ddr_defs.h>
22 #include <asm/arch/clock.h>
23 #include <asm/arch/gpio.h>
24 #include <asm/arch/mmc_host_def.h>
25 #include <asm/arch/sys_proto.h>
33 #include <asm/mach-types.h>
34 #include "../common/factoryset.h"
36 DECLARE_GLOBAL_DATA_PTR;
38 #ifdef CONFIG_SPL_BUILD
39 void set_uart_mux_conf(void)
41 enable_uart0_pin_mux();
44 void set_mux_conf_regs(void)
46 /* Initalize the board header */
47 enable_i2c0_pin_mux();
50 /* enable early the console */
51 gd->baudrate = CONFIG_BAUDRATE;
54 if (read_eeprom() < 0)
55 puts("Could not get board ID.\n");
57 enable_board_pin_mux();
62 spl_siemens_board_init();
67 #endif /* #ifdef CONFIG_SPL_BUILD */
69 #ifndef CONFIG_SPL_BUILD
71 * Basic board specific setup. Pinmux has been handled already.
75 #if defined(CONFIG_HW_WATCHDOG)
77 #endif /* defined(CONFIG_HW_WATCHDOG) */
79 if (read_eeprom() < 0)
80 puts("Could not get board ID.\n");
81 #ifdef CONFIG_MACH_TYPE
82 gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
84 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
86 #ifdef CONFIG_FACTORYSET
87 factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR);
92 #ifdef CONFIG_NAND_CS_INIT
101 #endif /* #ifndef CONFIG_SPL_BUILD */
103 #define OSC (V_OSCK/1000000)
104 const struct dpll_params dpll_ddr = {
105 DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
107 const struct dpll_params *get_dpll_ddr_params(void)
112 #ifndef CONFIG_SPL_BUILD
114 #define MAX_NR_LEDS 10
115 #define MAX_PIN_NUMBER 128
118 #if defined(BOARD_DFU_BUTTON_GPIO)
119 unsigned char get_button_state(char * const envname, unsigned char def)
125 /* If button is not found we take default */
126 ptr_env = env_get(envname);
127 if (NULL == ptr_env) {
130 gpio = (unsigned char)simple_strtoul(ptr_env, NULL, 0);
131 if (gpio > MAX_PIN_NUMBER)
135 gpio_request(gpio, "");
136 gpio_direction_input(gpio);
137 if (gpio_get_value(gpio))
147 * This command returns the status of the user button on
149 * Returns - 1 if button is held down
150 * 0 if button is not held down
153 do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
156 button = get_button_state("button_dfu0", BOARD_DFU_BUTTON_GPIO);
157 button |= get_button_state("button_dfu1", BOARD_DFU_BUTTON_GPIO);
162 dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
163 "Return the status of the DFU button",
169 do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
171 printf("\n\n\n Go into infinite loop\n\n\n");
178 testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
179 "Sends U-Boot into infinite loop",
184 * Get led gpios from env and set them.
185 * The led define in environment need to need to be of the form ledN=NN,S0,S1
186 * where N is an unsigned integer from 0 to 9 and S0 and S1 is 0 or 1. S0
187 * defines the startup state of the led, S1 the special state of the led when
188 * it enters e.g. dfu mode.
190 void set_env_gpios(unsigned char state)
193 char str_tmp[5]; /* must contain "ledX"*/
194 unsigned char i, idx, pos1, pos2, ccount;
195 unsigned char gpio_n, gpio_s0, gpio_s1;
197 for (i = 0; i < MAX_NR_LEDS; i++) {
198 sprintf(str_tmp, "led%d", i);
200 /* If env var is not found we stop */
201 ptr_env = env_get(str_tmp);
205 /* Find sperators position */
209 for (idx = 0; ptr_env[idx] != '\0'; idx++) {
210 if (ptr_env[idx] == ',') {
217 /* Bad led description skip this definition */
218 if (pos2 <= pos1 || ccount > 2)
221 /* Get pin number and request gpio */
222 memset(str_tmp, 0, sizeof(str_tmp));
223 strncpy(str_tmp, ptr_env, pos1*sizeof(char));
224 gpio_n = (unsigned char)simple_strtoul(str_tmp, NULL, 0);
226 /* Invalid gpio number skip definition */
227 if (gpio_n > MAX_PIN_NUMBER)
230 gpio_request(gpio_n, "");
232 if (state == STARTUP) {
233 /* get pin state 0 and set */
234 memset(str_tmp, 0, sizeof(str_tmp));
235 strncpy(str_tmp, ptr_env+pos1+1,
236 (pos2-pos1-1)*sizeof(char));
237 gpio_s0 = (unsigned char)simple_strtoul(str_tmp, NULL,
240 gpio_direction_output(gpio_n, gpio_s0);
243 /* get pin state 1 and set */
244 memset(str_tmp, 0, sizeof(str_tmp));
245 strcpy(str_tmp, ptr_env+pos2+1);
246 gpio_s1 = (unsigned char)simple_strtoul(str_tmp, NULL,
248 gpio_direction_output(gpio_n, gpio_s1);
250 } /* loop through defined led in environment */
253 static int do_board_led(cmd_tbl_t *cmdtp, int flag, int argc,
257 return CMD_RET_USAGE;
258 if ((unsigned char)simple_strtoul(argv[1], NULL, 0) == STARTUP)
266 draco_led, CONFIG_SYS_MAXARGS, 2, do_board_led,
267 "Set LEDs defined in environment",
270 #endif /* !CONFIG_SPL_BUILD */