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.
7 * U-Boot file:/board/ti/am335x/board.c
8 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
10 * SPDX-License-Identifier: GPL-2.0+
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>
31 #include "../common/factoryset.h"
33 DECLARE_GLOBAL_DATA_PTR;
35 #ifdef CONFIG_SPL_BUILD
36 void set_uart_mux_conf(void)
38 enable_uart0_pin_mux();
41 void set_mux_conf_regs(void)
43 /* Initalize the board header */
44 enable_i2c0_pin_mux();
47 /* enable early the console */
48 gd->baudrate = CONFIG_BAUDRATE;
51 if (read_eeprom() < 0)
52 puts("Could not get board ID.\n");
54 enable_board_pin_mux();
59 spl_siemens_board_init();
64 #endif /* #ifdef CONFIG_SPL_BUILD */
66 #ifndef CONFIG_SPL_BUILD
68 * Basic board specific setup. Pinmux has been handled already.
72 #if defined(CONFIG_HW_WATCHDOG)
74 #endif /* defined(CONFIG_HW_WATCHDOG) */
76 if (read_eeprom() < 0)
77 puts("Could not get board ID.\n");
78 #ifdef CONFIG_MACH_TYPE
79 gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
81 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
83 #ifdef CONFIG_FACTORYSET
84 factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR);
94 #endif /* #ifndef CONFIG_SPL_BUILD */
96 #define OSC (V_OSCK/1000000)
97 const struct dpll_params dpll_ddr = {
98 DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
100 const struct dpll_params *get_dpll_ddr_params(void)
105 #ifndef CONFIG_SPL_BUILD
107 #define MAX_NR_LEDS 10
108 #define MAX_PIN_NUMBER 128
111 #if defined(BOARD_DFU_BUTTON_GPIO)
112 unsigned char get_button_state(char * const envname, unsigned char def)
118 /* If button is not found we take default */
119 ptr_env = getenv(envname);
120 if (NULL == ptr_env) {
123 gpio = (unsigned char)simple_strtoul(ptr_env, NULL, 0);
124 if (gpio > MAX_PIN_NUMBER)
128 gpio_request(gpio, "");
129 gpio_direction_input(gpio);
130 if (gpio_get_value(gpio))
140 * This command returns the status of the user button on
142 * Returns - 1 if button is held down
143 * 0 if button is not held down
146 do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
149 button = get_button_state("button_dfu0", BOARD_DFU_BUTTON_GPIO);
150 button |= get_button_state("button_dfu1", BOARD_DFU_BUTTON_GPIO);
155 dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
156 "Return the status of the DFU button",
162 do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
164 printf("\n\n\n Go into infinite loop\n\n\n");
171 testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
172 "Sends U-Boot into infinite loop",
177 * Get led gpios from env and set them.
178 * The led define in environment need to need to be of the form ledN=NN,S0,S1
179 * where N is an unsigned integer from 0 to 9 and S0 and S1 is 0 or 1. S0
180 * defines the startup state of the led, S1 the special state of the led when
181 * it enters e.g. dfu mode.
183 void set_env_gpios(unsigned char state)
186 char str_tmp[5]; /* must contain "ledX"*/
188 unsigned char i, idx, pos1, pos2, ccount;
189 unsigned char gpio_n, gpio_s0, gpio_s1;
191 for (i = 0; i < MAX_NR_LEDS; i++) {
192 strcpy(str_tmp, "led");
193 sprintf(num, "%d", i);
194 strcat(str_tmp, num);
196 /* If env var is not found we stop */
197 ptr_env = getenv(str_tmp);
201 /* Find sperators position */
205 for (idx = 0; ptr_env[idx] != '\0'; idx++) {
206 if (ptr_env[idx] == ',') {
213 /* Bad led description skip this definition */
214 if (pos2 <= pos1 || ccount > 2)
217 /* Get pin number and request gpio */
218 memset(str_tmp, 0, sizeof(str_tmp));
219 strncpy(str_tmp, ptr_env, pos1*sizeof(char));
220 gpio_n = (unsigned char)simple_strtoul(str_tmp, NULL, 0);
222 /* Invalid gpio number skip definition */
223 if (gpio_n > MAX_PIN_NUMBER)
226 gpio_request(gpio_n, "");
228 if (state == STARTUP) {
229 /* get pin state 0 and set */
230 memset(str_tmp, 0, sizeof(str_tmp));
231 strncpy(str_tmp, ptr_env+pos1+1,
232 (pos2-pos1-1)*sizeof(char));
233 gpio_s0 = (unsigned char)simple_strtoul(str_tmp, NULL,
236 gpio_direction_output(gpio_n, gpio_s0);
239 /* get pin state 1 and set */
240 memset(str_tmp, 0, sizeof(str_tmp));
241 strcpy(str_tmp, ptr_env+pos2+1);
242 gpio_s1 = (unsigned char)simple_strtoul(str_tmp, NULL,
244 gpio_direction_output(gpio_n, gpio_s1);
246 } /* loop through defined led in environment */
249 static int do_board_led(cmd_tbl_t *cmdtp, int flag, int argc,
253 return CMD_RET_USAGE;
254 if ((unsigned char)simple_strtoul(argv[1], NULL, 0) == STARTUP)
262 draco_led, CONFIG_SYS_MAXARGS, 2, do_board_led,
263 "Set LEDs defined in environment",
266 #endif /* !CONFIG_SPL_BUILD */