[people/ms/u-boot.git] / board / siemens / common / board.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 <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 = 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 */
Commit	Line	Data
c0dcece7 HS	1	/*
	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.
	5	*
	6	* Based on:
	7	* U-Boot file:/board/ti/am335x/board.c
	8	* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
	9	*
	10	* SPDX-License-Identifier: GPL-2.0+
	11	*/
	12
	13	#include <common.h>
	14	#include <errno.h>
	15	#include <spl.h>
	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>
	24	#include <asm/io.h>
	25	#include <asm/emif.h>
	26	#include <asm/gpio.h>
	27	#include <i2c.h>
	28	#include <miiphy.h>
	29	#include <cpsw.h>
	30	#include <watchdog.h>
c62db35d	31	#include <asm/mach-types.h>
c0dcece7 HS	32	#include "../common/factoryset.h"
	33
	34	DECLARE_GLOBAL_DATA_PTR;
	35
	36	#ifdef CONFIG_SPL_BUILD
	37	void set_uart_mux_conf(void)
	38	{
	39	enable_uart0_pin_mux();
	40	}
	41
	42	void set_mux_conf_regs(void)
	43	{
	44	/* Initalize the board header */
	45	enable_i2c0_pin_mux();
6789e84e	46	i2c_set_bus_num(0);
012681b1 HS	47
	48	/* enable early the console */
	49	gd->baudrate = CONFIG_BAUDRATE;
	50	serial_init();
	51	gd->have_console = 1;
c0dcece7 HS	52	if (read_eeprom() < 0)
	53	puts("Could not get board ID.\n");
	54
	55	enable_board_pin_mux();
	56	}
	57
	58	void sdram_init(void)
	59	{
	60	spl_siemens_board_init();
	61	board_init_ddr();
	62
	63	return;
	64	}
	65	#endif /* #ifdef CONFIG_SPL_BUILD */
	66
	67	#ifndef CONFIG_SPL_BUILD
	68	/*
	69	* Basic board specific setup. Pinmux has been handled already.
	70	*/
	71	int board_init(void)
	72	{
	73	#if defined(CONFIG_HW_WATCHDOG)
	74	hw_watchdog_init();
	75	#endif /* defined(CONFIG_HW_WATCHDOG) */
6789e84e	76	i2c_set_bus_num(0);
c0dcece7 HS	77	if (read_eeprom() < 0)
c0dcece7 HS	78	puts("Could not get board ID.\n");
61159b76	79	#ifdef CONFIG_MACH_TYPE
c0dcece7	80	gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
61159b76	81	#endif
c0dcece7 HS	82	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
	83
	84	#ifdef CONFIG_FACTORYSET
	85	factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR);
	86	#endif
6b3943f1	87
c0dcece7 HS	88	gpmc_init();
c0dcece7 HS	89
6b3943f1 HS	90	#ifdef CONFIG_NAND_CS_INIT
	91	board_nand_cs_init();
	92	#endif
c0dcece7 HS	93	#ifdef CONFIG_VIDEO
	94	board_video_init();
	95	#endif
	96
	97	return 0;
	98	}
	99	#endif /* #ifndef CONFIG_SPL_BUILD */
	100
	101	#define OSC (V_OSCK/1000000)
	102	const struct dpll_params dpll_ddr = {
	103	DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1};
	104
	105	const struct dpll_params *get_dpll_ddr_params(void)
	106	{
	107	return &dpll_ddr;
	108	}
	109
c0dcece7	110	#ifndef CONFIG_SPL_BUILD
61159b76 HS	111
	112	#define MAX_NR_LEDS 10
	113	#define MAX_PIN_NUMBER 128
	114	#define STARTUP 0
	115
c0dcece7	116	#if defined(BOARD_DFU_BUTTON_GPIO)
61159b76	117	unsigned char get_button_state(char * const envname, unsigned char def)
c0dcece7 HS	118	{
	119	int button = 0;
	120	int gpio;
61159b76	121	char *ptr_env;
c0dcece7	122
61159b76 HS	123	/* If button is not found we take default */
	124	ptr_env = getenv(envname);
	125	if (NULL == ptr_env) {
	126	gpio = def;
	127	} else {
	128	gpio = (unsigned char)simple_strtoul(ptr_env, NULL, 0);
	129	if (gpio > MAX_PIN_NUMBER)
	130	gpio = def;
	131	}
	132
	133	gpio_request(gpio, "");
c0dcece7 HS	134	gpio_direction_input(gpio);
	135	if (gpio_get_value(gpio))
	136	button = 1;
	137	else
	138	button = 0;
	139
	140	gpio_free(gpio);
c0dcece7 HS	141
	142	return button;
	143	}
61159b76 HS	144	/**
	145	* This command returns the status of the user button on
	146	* Input - none
	147	* Returns - 1 if button is held down
	148	* 0 if button is not held down
111c8e40 ES	149	*/
111c8e40 ES	150	static int
61159b76	151	do_userbutton(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
111c8e40	152	{
61159b76 HS	153	int button = 0;
	154	button = get_button_state("button_dfu0", BOARD_DFU_BUTTON_GPIO);
	155	button \|= get_button_state("button_dfu1", BOARD_DFU_BUTTON_GPIO);
	156	return button;
111c8e40 ES	157	}
	158
	159	U_BOOT_CMD(
61159b76 HS	160	dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton,
	161	"Return the status of the DFU button",
	162	""
111c8e40	163	);
61159b76	164	#endif
c0dcece7 HS	165
	166	static int
	167	do_usertestwdt(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	168	{
	169	printf("\n\n\n Go into infinite loop\n\n\n");
	170	while (1)
	171	;
	172	return 0;
	173	};
	174
	175	U_BOOT_CMD(
	176	testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt,
	177	"Sends U-Boot into infinite loop",
	178	""
	179	);
61159b76 HS	180
	181	/**
	182	* Get led gpios from env and set them.
	183	* The led define in environment need to need to be of the form ledN=NN,S0,S1
	184	* where N is an unsigned integer from 0 to 9 and S0 and S1 is 0 or 1. S0
	185	* defines the startup state of the led, S1 the special state of the led when
	186	* it enters e.g. dfu mode.
	187	*/
	188	void set_env_gpios(unsigned char state)
	189	{
	190	char *ptr_env;
	191	char str_tmp[5]; /* must contain "ledX"*/
	192	char num[1];
	193	unsigned char i, idx, pos1, pos2, ccount;
	194	unsigned char gpio_n, gpio_s0, gpio_s1;
	195
	196	for (i = 0; i < MAX_NR_LEDS; i++) {
	197	strcpy(str_tmp, "led");
	198	sprintf(num, "%d", i);
	199	strcat(str_tmp, num);
	200
	201	/* If env var is not found we stop */
	202	ptr_env = getenv(str_tmp);
	203	if (NULL == ptr_env)
	204	break;
	205
	206	/* Find sperators position */
	207	pos1 = 0;
	208	pos2 = 0;
	209	ccount = 0;
	210	for (idx = 0; ptr_env[idx] != '\0'; idx++) {
	211	if (ptr_env[idx] == ',') {
	212	if (ccount++ < 1)
	213	pos1 = idx;
	214	else
	215	pos2 = idx;
	216	}
	217	}
	218	/* Bad led description skip this definition */
	219	if (pos2 <= pos1 \|\| ccount > 2)
	220	continue;
	221
	222	/* Get pin number and request gpio */
	223	memset(str_tmp, 0, sizeof(str_tmp));
	224	strncpy(str_tmp, ptr_env, pos1*sizeof(char));
	225	gpio_n = (unsigned char)simple_strtoul(str_tmp, NULL, 0);
	226
	227	/* Invalid gpio number skip definition */
	228	if (gpio_n > MAX_PIN_NUMBER)
	229	continue;
	230
	231	gpio_request(gpio_n, "");
	232
	233	if (state == STARTUP) {
	234	/* get pin state 0 and set */
	235	memset(str_tmp, 0, sizeof(str_tmp));
	236	strncpy(str_tmp, ptr_env+pos1+1,
	237	(pos2-pos1-1)*sizeof(char));
	238	gpio_s0 = (unsigned char)simple_strtoul(str_tmp, NULL,
	239	0);
	240
	241	gpio_direction_output(gpio_n, gpio_s0);
	242
	243	} else {
244	/* get pin state 1 and set */
245	memset(str_tmp, 0, sizeof(str_tmp));
246	strcpy(str_tmp, ptr_env+pos2+1);
247	gpio_s1 = (unsigned char)simple_strtoul(str_tmp, NULL,
248	0);
249	gpio_direction_output(gpio_n, gpio_s1);
250	}
251	} /* loop through defined led in environment */
252	}
253
254	static int do_board_led(cmd_tbl_t *cmdtp, int flag, int argc,
255	char *const argv[])
256	{
257	if (argc != 2)
258	return CMD_RET_USAGE;
259	if ((unsigned char)simple_strtoul(argv[1], NULL, 0) == STARTUP)
260	set_env_gpios(0);
261	else
262	set_env_gpios(1);
263	return 0;
264	};
265
266	U_BOOT_CMD(
267	draco_led, CONFIG_SYS_MAXARGS, 2, do_board_led,
268	"Set LEDs defined in environment",
269	"<0\|1>"
270	);
c0dcece7	271	#endif /* !CONFIG_SPL_BUILD */