u-boot/board/siemens/common/board.c
Heiko Schocher 6b3943f1b0 siemens,am33x: add draco etamin board
In the draco CPU board family, etamin is a new variant
with bigger flash and more RAM. Due to new flash that
uses larger pages (4K) some changes are necessary because
it impacts the MTD partition layout and the ubi mount
parameters.

Signed-off-by: Samuel Egli <samuel.egli@siemens.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
[trini: Move BOOTDELAY into defconfig, just always be 3 now]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-06-09 13:53:13 -04:00

270 lines
5.8 KiB
C

/*
* 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/
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <errno.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 "../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 = getenv(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(cmd_tbl_t *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(cmd_tbl_t *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"*/
char num[1];
unsigned char i, idx, pos1, pos2, ccount;
unsigned char gpio_n, gpio_s0, gpio_s1;
for (i = 0; i < MAX_NR_LEDS; i++) {
strcpy(str_tmp, "led");
sprintf(num, "%d", i);
strcat(str_tmp, num);
/* If env var is not found we stop */
ptr_env = getenv(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(cmd_tbl_t *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 */