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/
17 #include <asm/arch/cpu.h>
18 #include <asm/arch/hardware.h>
19 #include <asm/arch/omap.h>
20 #include <asm/arch/ddr_defs.h>
21 #include <asm/arch/clock.h>
22 #include <asm/arch/gpio.h>
23 #include <asm/arch/mmc_host_def.h>
24 #include <asm/arch/sys_proto.h>
32 #include <asm/mach-types.h>
33 #include "../common/factoryset.h"
35 DECLARE_GLOBAL_DATA_PTR;
37 #ifdef CONFIG_SPL_BUILD
38 void set_uart_mux_conf(void)
40 enable_uart0_pin_mux();
43 void set_mux_conf_regs(void)
45 /* Initalize the board header */
46 enable_i2c0_pin_mux();
49 /* enable early the console */
50 gd->baudrate = CONFIG_BAUDRATE;
53 if (read_eeprom() < 0)
54 puts("Could not get board ID.\n");
56 enable_board_pin_mux();
61 spl_siemens_board_init();
66 #endif /* #ifdef CONFIG_SPL_BUILD */
68 #ifndef CONFIG_SPL_BUILD
70 * Basic board specific setup. Pinmux has been handled already.
74 #if defined(CONFIG_HW_WATCHDOG)
76 #endif /* defined(CONFIG_HW_WATCHDOG) */
78 if (read_eeprom() < 0)
79 puts("Could not get board ID.\n");
80 #ifdef CONFIG_MACH_TYPE
81 gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
83 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
85 #ifdef CONFIG_FACTORYSET
86 factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR);
91 #ifdef CONFIG_NAND_CS_INIT
100 #endif /* #ifndef CONFIG_SPL_BUILD */
102 #define OSC (V_OSCK/1000000)
103 const struct dpll_params dpll_ddr = {
104 DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
106 const struct dpll_params *get_dpll_ddr_params(void)
111 #ifndef CONFIG_SPL_BUILD
113 #define MAX_NR_LEDS 10
114 #define MAX_PIN_NUMBER 128
117 #if defined(BOARD_DFU_BUTTON_GPIO)
118 unsigned char get_button_state(char * const envname, unsigned char def)
124 /* If button is not found we take default */
125 ptr_env = env_get(envname);
126 if (NULL == ptr_env) {
129 gpio = (unsigned char)simple_strtoul(ptr_env, NULL, 0);
130 if (gpio > MAX_PIN_NUMBER)
134 gpio_request(gpio, "");
135 gpio_direction_input(gpio);
136 if (gpio_get_value(gpio))
146 * This command returns the status of the user button on
148 * Returns - 1 if button is held down
149 * 0 if button is not held down
152 do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
155 button = get_button_state("button_dfu0", BOARD_DFU_BUTTON_GPIO);
156 button |= get_button_state("button_dfu1", BOARD_DFU_BUTTON_GPIO);
161 dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
162 "Return the status of the DFU button",
168 do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
170 printf("\n\n\n Go into infinite loop\n\n\n");
177 testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
178 "Sends U-Boot into infinite loop",
183 * Get led gpios from env and set them.
184 * The led define in environment need to need to be of the form ledN=NN,S0,S1
185 * where N is an unsigned integer from 0 to 9 and S0 and S1 is 0 or 1. S0
186 * defines the startup state of the led, S1 the special state of the led when
187 * it enters e.g. dfu mode.
189 void set_env_gpios(unsigned char state)
192 char str_tmp[5]; /* must contain "ledX"*/
193 unsigned char i, idx, pos1, pos2, ccount;
194 unsigned char gpio_n, gpio_s0, gpio_s1;
196 for (i = 0; i < MAX_NR_LEDS; i++) {
197 sprintf(str_tmp, "led%d", i);
199 /* If env var is not found we stop */
200 ptr_env = env_get(str_tmp);
204 /* Find sperators position */
208 for (idx = 0; ptr_env[idx] != '\0'; idx++) {
209 if (ptr_env[idx] == ',') {
216 /* Bad led description skip this definition */
217 if (pos2 <= pos1 || ccount > 2)
220 /* Get pin number and request gpio */
221 memset(str_tmp, 0, sizeof(str_tmp));
222 strncpy(str_tmp, ptr_env, pos1*sizeof(char));
223 gpio_n = (unsigned char)simple_strtoul(str_tmp, NULL, 0);
225 /* Invalid gpio number skip definition */
226 if (gpio_n > MAX_PIN_NUMBER)
229 gpio_request(gpio_n, "");
231 if (state == STARTUP) {
232 /* get pin state 0 and set */
233 memset(str_tmp, 0, sizeof(str_tmp));
234 strncpy(str_tmp, ptr_env+pos1+1,
235 (pos2-pos1-1)*sizeof(char));
236 gpio_s0 = (unsigned char)simple_strtoul(str_tmp, NULL,
239 gpio_direction_output(gpio_n, gpio_s0);
242 /* get pin state 1 and set */
243 memset(str_tmp, 0, sizeof(str_tmp));
244 strcpy(str_tmp, ptr_env+pos2+1);
245 gpio_s1 = (unsigned char)simple_strtoul(str_tmp, NULL,
247 gpio_direction_output(gpio_n, gpio_s1);
249 } /* loop through defined led in environment */
252 static int do_board_led(cmd_tbl_t *cmdtp, int flag, int argc,
256 return CMD_RET_USAGE;
257 if ((unsigned char)simple_strtoul(argv[1], NULL, 0) == STARTUP)
265 draco_led, CONFIG_SYS_MAXARGS, 2, do_board_led,
266 "Set LEDs defined in environment",
269 #endif /* !CONFIG_SPL_BUILD */