GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)
This commit is contained in:
@@ -0,0 +1,269 @@
|
||||
// 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 <env.h>
|
||||
#include <errno.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(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"*/
|
||||
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(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 */
|
||||
Reference in New Issue
Block a user