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// SPDX-License-Identifier: GPL-2.0+
/*
* Common board functions for siemens AM335X based boards
* (C) Copyright 2013 Siemens Schweiz AG
* (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
*
* Based on:
* U-Boot file:/board/ti/am335x/board.c
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
*/
#include <common.h>
#include <command.h>
#include <env.h>
#include <errno.h>
#include <init.h>
#include <malloc.h>
#include <serial.h>
#include <spl.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/omap.h>
#include <asm/arch/ddr_defs.h>
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/sys_proto.h>
#include <asm/io.h>
#include <asm/emif.h>
#include <asm/gpio.h>
#include <i2c.h>
#include <miiphy.h>
#include <cpsw.h>
#include <watchdog.h>
#include <asm/mach-types.h>
#include "../common/factoryset.h"
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_SPL_BUILD
void set_uart_mux_conf(void)
{
enable_uart0_pin_mux();
}
void set_mux_conf_regs(void)
{
/* Initalize the board header */
enable_i2c0_pin_mux();
i2c_set_bus_num(0);
/* enable early the console */
gd->baudrate = CONFIG_BAUDRATE;
serial_init();
gd->have_console = 1;
if (read_eeprom() < 0)
puts("Could not get board ID.\n");
enable_board_pin_mux();
}
void sdram_init(void)
{
spl_siemens_board_init();
board_init_ddr();
return;
}
#endif /* #ifdef CONFIG_SPL_BUILD */
#ifndef CONFIG_SPL_BUILD
/*
* Basic board specific setup. Pinmux has been handled already.
*/
int board_init(void)
{
#if defined(CONFIG_HW_WATCHDOG)
hw_watchdog_init();
#endif /* defined(CONFIG_HW_WATCHDOG) */
i2c_set_bus_num(0);
if (read_eeprom() < 0)
puts("Could not get board ID.\n");
#ifdef CONFIG_MACH_TYPE
gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
#endif
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_FACTORYSET
factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR);
#endif
gpmc_init();
#ifdef CONFIG_NAND_CS_INIT
board_nand_cs_init();
#endif
#ifdef CONFIG_VIDEO
board_video_init();
#endif
return 0;
}
#endif /* #ifndef CONFIG_SPL_BUILD */
#define OSC (V_OSCK/1000000)
const struct dpll_params dpll_ddr = {
DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
const struct dpll_params *get_dpll_ddr_params(void)
{
return &dpll_ddr;
}
#ifndef CONFIG_SPL_BUILD
#define MAX_NR_LEDS 10
#define MAX_PIN_NUMBER 128
#define STARTUP 0
#if defined(BOARD_DFU_BUTTON_GPIO)
unsigned char get_button_state(char * const envname, unsigned char def)
{
int button = 0;
int gpio;
char *ptr_env;
/* If button is not found we take default */
ptr_env = env_get(envname);
if (NULL == ptr_env) {
gpio = def;
} else {
gpio = (unsigned char)simple_strtoul(ptr_env, NULL, 0);
if (gpio > MAX_PIN_NUMBER)
gpio = def;
}
gpio_request(gpio, "");
gpio_direction_input(gpio);
if (gpio_get_value(gpio))
button = 1;
else
button = 0;
gpio_free(gpio);
return button;
}
/**
* This command returns the status of the user button on
* Input - none
* Returns - 1 if button is held down
* 0 if button is not held down
*/
static int
do_userbutton(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
int button = 0;
button = get_button_state("button_dfu0", BOARD_DFU_BUTTON_GPIO);
button |= get_button_state("button_dfu1", BOARD_DFU_BUTTON_GPIO);
return button;
}
U_BOOT_CMD(
dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
"Return the status of the DFU button",
""
);
#endif
static int
do_usertestwdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
printf("\n\n\n Go into infinite loop\n\n\n");
while (1)
;
return 0;
};
U_BOOT_CMD(
testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
"Sends U-Boot into infinite loop",
""
);
/**
* Get led gpios from env and set them.
* The led define in environment need to need to be of the form ledN=NN,S0,S1
* where N is an unsigned integer from 0 to 9 and S0 and S1 is 0 or 1. S0
* defines the startup state of the led, S1 the special state of the led when
* it enters e.g. dfu mode.
*/
void set_env_gpios(unsigned char state)
{
char *ptr_env;
char str_tmp[5]; /* must contain "ledX"*/
unsigned char i, idx, pos1, pos2, ccount;
unsigned char gpio_n, gpio_s0, gpio_s1;
for (i = 0; i < MAX_NR_LEDS; i++) {
sprintf(str_tmp, "led%d", i);
/* If env var is not found we stop */
ptr_env = env_get(str_tmp);
if (NULL == ptr_env)
break;
/* Find sperators position */
pos1 = 0;
pos2 = 0;
ccount = 0;
for (idx = 0; ptr_env[idx] != '\0'; idx++) {
if (ptr_env[idx] == ',') {
if (ccount++ < 1)
pos1 = idx;
else
pos2 = idx;
}
}
/* Bad led description skip this definition */
if (pos2 <= pos1 || ccount > 2)
continue;
/* Get pin number and request gpio */
memset(str_tmp, 0, sizeof(str_tmp));
strncpy(str_tmp, ptr_env, pos1*sizeof(char));
gpio_n = (unsigned char)simple_strtoul(str_tmp, NULL, 0);
/* Invalid gpio number skip definition */
if (gpio_n > MAX_PIN_NUMBER)
continue;
gpio_request(gpio_n, "");
if (state == STARTUP) {
/* get pin state 0 and set */
memset(str_tmp, 0, sizeof(str_tmp));
strncpy(str_tmp, ptr_env+pos1+1,
(pos2-pos1-1)*sizeof(char));
gpio_s0 = (unsigned char)simple_strtoul(str_tmp, NULL,
0);
gpio_direction_output(gpio_n, gpio_s0);
} else {
/* get pin state 1 and set */
memset(str_tmp, 0, sizeof(str_tmp));
strcpy(str_tmp, ptr_env+pos2+1);
gpio_s1 = (unsigned char)simple_strtoul(str_tmp, NULL,
0);
gpio_direction_output(gpio_n, gpio_s1);
}
} /* loop through defined led in environment */
}
static int do_board_led(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
if (argc != 2)
return CMD_RET_USAGE;
if ((unsigned char)simple_strtoul(argv[1], NULL, 0) == STARTUP)
set_env_gpios(0);
else
set_env_gpios(1);
return 0;
};
U_BOOT_CMD(
draco_led, CONFIG_SYS_MAXARGS, 2, do_board_led,
"Set LEDs defined in environment",
"<0|1>"
);
#endif /* !CONFIG_SPL_BUILD */
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