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 - https://www.ti.com/
20 #include <asm/arch/cpu.h>
21 #include <asm/arch/hardware.h>
22 #include <asm/arch/omap.h>
23 #include <asm/arch/ddr_defs.h>
24 #include <asm/arch/clock.h>
25 #include <asm/arch/gpio.h>
26 #include <asm/arch/mmc_host_def.h>
27 #include <asm/arch/sys_proto.h>
28 #include <asm/global_data.h>
36 #include <asm/mach-types.h>
38 #include "factoryset.h"
40 DECLARE_GLOBAL_DATA_PTR;
42 #ifdef CONFIG_SPL_BUILD
43 void set_uart_mux_conf(void)
45 enable_uart0_pin_mux();
48 void set_mux_conf_regs(void)
50 /* Initalize the board header */
51 enable_i2c0_pin_mux();
54 /* enable early the console */
55 gd->baudrate = CONFIG_BAUDRATE;
58 if (read_eeprom() < 0)
59 puts("Could not get board ID.\n");
61 enable_board_pin_mux();
66 spl_siemens_board_init();
71 #endif /* #ifdef CONFIG_SPL_BUILD */
73 #ifndef CONFIG_SPL_BUILD
75 * Basic board specific setup. Pinmux has been handled already.
79 #if defined(CONFIG_HW_WATCHDOG)
81 #endif /* defined(CONFIG_HW_WATCHDOG) */
83 if (read_eeprom() < 0)
84 puts("Could not get board ID.\n");
85 #ifdef CONFIG_MACH_TYPE
86 gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
88 gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
90 #ifdef CONFIG_FACTORYSET
91 factoryset_read_eeprom(SIEMENS_EE_I2C_ADDR);
96 #if CONFIG_IS_ENABLED(NAND_CS_INIT)
102 #endif /* #ifndef CONFIG_SPL_BUILD */
104 #define OSC (V_OSCK/1000000)
105 const struct dpll_params dpll_ddr = {
106 DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
108 const struct dpll_params *get_dpll_ddr_params(void)
113 #ifndef CONFIG_SPL_BUILD
115 #define MAX_NR_LEDS 10
116 #define MAX_PIN_NUMBER 128
119 #if defined(BOARD_DFU_BUTTON_GPIO)
120 unsigned char get_button_state(char * const envname, unsigned char def)
126 /* If button is not found we take default */
127 ptr_env = env_get(envname);
128 if (NULL == ptr_env) {
131 gpio = (unsigned char)simple_strtoul(ptr_env, NULL, 0);
132 if (gpio > MAX_PIN_NUMBER)
136 gpio_request(gpio, "");
137 gpio_direction_input(gpio);
138 if (gpio_get_value(gpio))
148 * This command returns the status of the user button on
150 * Returns - 1 if button is held down
151 * 0 if button is not held down
154 do_userbutton(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
157 button = get_button_state("button_dfu0", BOARD_DFU_BUTTON_GPIO);
158 button |= get_button_state("button_dfu1", BOARD_DFU_BUTTON_GPIO);
163 dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
164 "Return the status of the DFU button",
170 do_usertestwdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
172 printf("\n\n\n Go into infinite loop\n\n\n");
179 testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
180 "Sends U-Boot into infinite loop",
185 * Get led gpios from env and set them.
186 * The led define in environment need to need to be of the form ledN=NN,S0,S1
187 * where N is an unsigned integer from 0 to 9 and S0 and S1 is 0 or 1. S0
188 * defines the startup state of the led, S1 the special state of the led when
189 * it enters e.g. dfu mode.
191 void set_env_gpios(unsigned char state)
194 char str_tmp[5]; /* must contain "ledX"*/
195 unsigned char i, idx, pos1, pos2, ccount;
196 unsigned char gpio_n, gpio_s0, gpio_s1;
198 for (i = 0; i < MAX_NR_LEDS; i++) {
199 sprintf(str_tmp, "led%d", i);
201 /* If env var is not found we stop */
202 ptr_env = env_get(str_tmp);
206 /* Find sperators position */
210 for (idx = 0; ptr_env[idx] != '\0'; idx++) {
211 if (ptr_env[idx] == ',') {
218 /* Bad led description skip this definition */
219 if (pos2 <= pos1 || ccount > 2)
222 /* Get pin number and request gpio */
223 memset(str_tmp, 0, sizeof(str_tmp));
224 strncpy(str_tmp, ptr_env, pos1*sizeof(char));
225 gpio_n = (unsigned char)simple_strtoul(str_tmp, NULL, 0);
227 /* Invalid gpio number skip definition */
228 if (gpio_n > MAX_PIN_NUMBER)
231 gpio_request(gpio_n, "");
233 if (state == STARTUP) {
234 /* get pin state 0 and set */
235 memset(str_tmp, 0, sizeof(str_tmp));
236 strncpy(str_tmp, ptr_env+pos1+1,
237 (pos2-pos1-1)*sizeof(char));
238 gpio_s0 = (unsigned char)simple_strtoul(str_tmp, NULL,
241 gpio_direction_output(gpio_n, gpio_s0);
244 /* get pin state 1 and set */
245 memset(str_tmp, 0, sizeof(str_tmp));
246 strcpy(str_tmp, ptr_env+pos2+1);
247 gpio_s1 = (unsigned char)simple_strtoul(str_tmp, NULL,
249 gpio_direction_output(gpio_n, gpio_s1);
251 } /* loop through defined led in environment */
254 static int do_board_led(struct cmd_tbl *cmdtp, int flag, int argc,
258 return CMD_RET_USAGE;
259 if ((unsigned char)simple_strtoul(argv[1], NULL, 0) == STARTUP)
267 draco_led, CONFIG_SYS_MAXARGS, 2, do_board_led,
268 "Set LEDs defined in environment",
271 #endif /* !CONFIG_SPL_BUILD */