[people/ms/u-boot.git] / board / buffalo / lsxl / lsxl.c

/*
 * Copyright (c) 2012 Michael Walle
 * Michael Walle <michael@walle.cc>
 *
 * Based on sheevaplug/sheevaplug.c by
 *   Marvell Semiconductor <www.marvell.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <net.h>
#include <malloc.h>
#include <netdev.h>
#include <miiphy.h>
#include <spi.h>
#include <spi_flash.h>
#include <asm/arch/soc.h>
#include <asm/arch/cpu.h>
#include <asm/arch/mpp.h>
#include <asm/arch/gpio.h>

#include "lsxl.h"

/*
 * Rescue mode
 *
 * Selected by holding the push button for 3 seconds, while powering on
 * the device.
 *
 * These linkstations don't have a (populated) serial port. There is no
 * way to access an (unmodified) board other than using the netconsole. If
 * you want to recover from a bad environment setting or an empty environment,
 * you can do this only with a working network connection. Therefore, a random
 * ethernet address is generated if none is set and a DHCP request is sent.
 * After a successful DHCP response is received, the network settings are
 * configured and the ncip is unset. Therefore, all netconsole packets are
 * broadcasted.
 * Additionally, the bootsource is set to 'rescue'.
 */

#ifndef CONFIG_ENV_OVERWRITE
# error "You need to set CONFIG_ENV_OVERWRITE"
#endif

DECLARE_GLOBAL_DATA_PTR;

int board_early_init_f(void)
{
	/*
	 * default gpio configuration
	 * There are maximum 64 gpios controlled through 2 sets of registers
	 * the below configuration configures mainly initial LED status
	 */
	mvebu_config_gpio(LSXL_OE_VAL_LOW,
			  LSXL_OE_VAL_HIGH,
			  LSXL_OE_LOW, LSXL_OE_HIGH);

	/*
	 * Multi-Purpose Pins Functionality configuration
	 * These strappings are taken from the original vendor uboot port.
	 */
	static const u32 kwmpp_config[] = {
		MPP0_SPI_SCn,
		MPP1_SPI_MOSI,
		MPP2_SPI_SCK,
		MPP3_SPI_MISO,
		MPP4_UART0_RXD,
		MPP5_UART0_TXD,
		MPP6_SYSRST_OUTn,
		MPP7_GPO,
		MPP8_GPIO,
		MPP9_GPIO,
		MPP10_GPO,		/* HDD power */
		MPP11_GPIO,		/* USB Vbus enable */
		MPP12_SD_CLK,
		MPP13_SD_CMD,
		MPP14_SD_D0,
		MPP15_SD_D1,
		MPP16_SD_D2,
		MPP17_SD_D3,
		MPP18_GPO,		/* fan speed high */
		MPP19_GPO,		/* fan speed low */
		MPP20_GE1_0,
		MPP21_GE1_1,
		MPP22_GE1_2,
		MPP23_GE1_3,
		MPP24_GE1_4,
		MPP25_GE1_5,
		MPP26_GE1_6,
		MPP27_GE1_7,
		MPP28_GPIO,
		MPP29_GPIO,
		MPP30_GE1_10,
		MPP31_GE1_11,
		MPP32_GE1_12,
		MPP33_GE1_13,
		MPP34_GPIO,
		MPP35_GPIO,
		MPP36_GPIO,		/* function LED */
		MPP37_GPIO,		/* alarm LED */
		MPP38_GPIO,		/* info LED */
		MPP39_GPIO,		/* power LED */
		MPP40_GPIO,		/* fan alarm */
		MPP41_GPIO,		/* funtion button */
		MPP42_GPIO,		/* power switch */
		MPP43_GPIO,		/* power auto switch */
		MPP44_GPIO,
		MPP45_GPIO,
		MPP46_GPIO,
		MPP47_GPIO,
		MPP48_GPIO,		/* function red LED */
		MPP49_GPIO,
		0
	};

	kirkwood_mpp_conf(kwmpp_config, NULL);

	return 0;
}

#define LED_OFF             0
#define LED_ALARM_ON        1
#define LED_ALARM_BLINKING  2
#define LED_POWER_ON        3
#define LED_POWER_BLINKING  4
#define LED_INFO_ON         5
#define LED_INFO_BLINKING   6

static void __set_led(int blink_alarm, int blink_info, int blink_power,
		int value_alarm, int value_info, int value_power)
{
	kw_gpio_set_blink(GPIO_ALARM_LED, blink_alarm);
	kw_gpio_set_blink(GPIO_INFO_LED, blink_info);
	kw_gpio_set_blink(GPIO_POWER_LED, blink_power);
	kw_gpio_set_value(GPIO_ALARM_LED, value_alarm);
	kw_gpio_set_value(GPIO_INFO_LED, value_info);
	kw_gpio_set_value(GPIO_POWER_LED, value_power);
}

static void set_led(int state)
{
	switch (state) {
	case LED_OFF:
		__set_led(0, 0, 0, 1, 1, 1);
		break;
	case LED_ALARM_ON:
		__set_led(0, 0, 0, 0, 1, 1);
		break;
	case LED_ALARM_BLINKING:
		__set_led(1, 0, 0, 1, 1, 1);
		break;
	case LED_INFO_ON:
		__set_led(0, 0, 0, 1, 0, 1);
		break;
	case LED_INFO_BLINKING:
		__set_led(0, 1, 0, 1, 1, 1);
		break;
	case LED_POWER_ON:
		__set_led(0, 0, 0, 1, 1, 0);
		break;
	case LED_POWER_BLINKING:
		__set_led(0, 0, 1, 1, 1, 1);
		break;
	}
}

int board_init(void)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;

	set_led(LED_POWER_BLINKING);

	return 0;
}

#ifdef CONFIG_MISC_INIT_R
static void check_power_switch(void)
{
	if (kw_gpio_get_value(GPIO_POWER_SWITCH)) {
		/* turn off fan, HDD and USB power */
		kw_gpio_set_value(GPIO_HDD_POWER, 0);
		kw_gpio_set_value(GPIO_USB_VBUS, 0);
		kw_gpio_set_value(GPIO_FAN_HIGH, 1);
		kw_gpio_set_value(GPIO_FAN_LOW, 1);
		set_led(LED_OFF);

		/* loop until released */
		while (kw_gpio_get_value(GPIO_POWER_SWITCH))
			;

		/* turn power on again */
		kw_gpio_set_value(GPIO_HDD_POWER, 1);
		kw_gpio_set_value(GPIO_USB_VBUS, 1);
		kw_gpio_set_value(GPIO_FAN_HIGH, 0);
		kw_gpio_set_value(GPIO_FAN_LOW, 0);
		set_led(LED_POWER_BLINKING);
	}
}

void check_enetaddr(void)
{
	uchar enetaddr[6];

	if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
		/* signal unset/invalid ethaddr to user */
		set_led(LED_INFO_BLINKING);
	}
}

static void erase_environment(void)
{
	struct spi_flash *flash;

	printf("Erasing environment..\n");
	flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
	if (!flash) {
		printf("Erasing flash failed\n");
		return;
	}

	spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE);
	spi_flash_free(flash);
	do_reset(NULL, 0, 0, NULL);
}

static void rescue_mode(void)
{
	printf("Entering rescue mode..\n");
	setenv("bootsource", "rescue");
}

static void check_push_button(void)
{
	int i = 0;

	while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) {
		udelay(100000);
		i++;

		if (i == 10)
			set_led(LED_INFO_ON);

		if (i >= 100) {
			set_led(LED_INFO_BLINKING);
			break;
		}
	}

	if (i >= 100)
		erase_environment();
	else if (i >= 10)
		rescue_mode();
}

int misc_init_r(void)
{
	check_power_switch();
	check_enetaddr();
	check_push_button();

	return 0;
}
#endif

#ifdef CONFIG_SHOW_BOOT_PROGRESS
void show_boot_progress(int progress)
{
	if (progress > 0)
		return;

	/* this is not an error, eg. bootp with autoload=no will trigger this */
	if (progress == -BOOTSTAGE_ID_NET_LOADED)
		return;

	set_led(LED_ALARM_BLINKING);
}
#endif
Commit	Line	Data
f214a20e MW	1	/*
	2	* Copyright (c) 2012 Michael Walle
	3	* Michael Walle <michael@walle.cc>
	4	*
	5	* Based on sheevaplug/sheevaplug.c by
	6	* Marvell Semiconductor <www.marvell.com>
	7	*
1a459660	8	* SPDX-License-Identifier: GPL-2.0+
f214a20e MW	9	*/
	10
	11	#include <common.h>
	12	#include <net.h>
	13	#include <malloc.h>
	14	#include <netdev.h>
	15	#include <miiphy.h>
ff0960f9 SG	16	#include <spi.h>
ff0960f9 SG	17	#include <spi_flash.h>
3dc23f78	18	#include <asm/arch/soc.h>
f214a20e MW	19	#include <asm/arch/cpu.h>
	20	#include <asm/arch/mpp.h>
	21	#include <asm/arch/gpio.h>
f214a20e MW	22
	23	#include "lsxl.h"
	24
	25	/*
	26	* Rescue mode
	27	*
	28	* Selected by holding the push button for 3 seconds, while powering on
	29	* the device.
	30	*
	31	* These linkstations don't have a (populated) serial port. There is no
	32	* way to access an (unmodified) board other than using the netconsole. If
	33	* you want to recover from a bad environment setting or an empty environment,
	34	* you can do this only with a working network connection. Therefore, a random
	35	* ethernet address is generated if none is set and a DHCP request is sent.
	36	* After a successful DHCP response is received, the network settings are
23c9946a MW	37	* configured and the ncip is unset. Therefore, all netconsole packets are
23c9946a MW	38	* broadcasted.
f214a20e MW	39	* Additionally, the bootsource is set to 'rescue'.
	40	*/
	41
	42	#ifndef CONFIG_ENV_OVERWRITE
	43	# error "You need to set CONFIG_ENV_OVERWRITE"
	44	#endif
	45
	46	DECLARE_GLOBAL_DATA_PTR;
	47
	48	int board_early_init_f(void)
	49	{
	50	/*
	51	* default gpio configuration
	52	* There are maximum 64 gpios controlled through 2 sets of registers
	53	* the below configuration configures mainly initial LED status
	54	*/
d5c5132f SR	55	mvebu_config_gpio(LSXL_OE_VAL_LOW,
	56	LSXL_OE_VAL_HIGH,
	57	LSXL_OE_LOW, LSXL_OE_HIGH);
f214a20e MW	58
	59	/*
	60	* Multi-Purpose Pins Functionality configuration
	61	* These strappings are taken from the original vendor uboot port.
	62	*/
9d86f0c3	63	static const u32 kwmpp_config[] = {
f214a20e MW	64	MPP0_SPI_SCn,
	65	MPP1_SPI_MOSI,
	66	MPP2_SPI_SCK,
	67	MPP3_SPI_MISO,
	68	MPP4_UART0_RXD,
	69	MPP5_UART0_TXD,
	70	MPP6_SYSRST_OUTn,
	71	MPP7_GPO,
	72	MPP8_GPIO,
	73	MPP9_GPIO,
	74	MPP10_GPO, /* HDD power */
	75	MPP11_GPIO, /* USB Vbus enable */
	76	MPP12_SD_CLK,
	77	MPP13_SD_CMD,
	78	MPP14_SD_D0,
	79	MPP15_SD_D1,
	80	MPP16_SD_D2,
	81	MPP17_SD_D3,
	82	MPP18_GPO, /* fan speed high */
	83	MPP19_GPO, /* fan speed low */
	84	MPP20_GE1_0,
	85	MPP21_GE1_1,
	86	MPP22_GE1_2,
	87	MPP23_GE1_3,
	88	MPP24_GE1_4,
	89	MPP25_GE1_5,
	90	MPP26_GE1_6,
	91	MPP27_GE1_7,
	92	MPP28_GPIO,
	93	MPP29_GPIO,
	94	MPP30_GE1_10,
	95	MPP31_GE1_11,
	96	MPP32_GE1_12,
	97	MPP33_GE1_13,
	98	MPP34_GPIO,
	99	MPP35_GPIO,
	100	MPP36_GPIO, /* function LED */
	101	MPP37_GPIO, /* alarm LED */
	102	MPP38_GPIO, /* info LED */
	103	MPP39_GPIO, /* power LED */
	104	MPP40_GPIO, /* fan alarm */
	105	MPP41_GPIO, /* funtion button */
	106	MPP42_GPIO, /* power switch */
	107	MPP43_GPIO, /* power auto switch */
	108	MPP44_GPIO,
	109	MPP45_GPIO,
	110	MPP46_GPIO,
	111	MPP47_GPIO,
	112	MPP48_GPIO, /* function red LED */
	113	MPP49_GPIO,
	114	0
	115	};
	116
	117	kirkwood_mpp_conf(kwmpp_config, NULL);
	118
	119	return 0;
	120	}
	121
	122	#define LED_OFF 0
	123	#define LED_ALARM_ON 1
	124	#define LED_ALARM_BLINKING 2
	125	#define LED_POWER_ON 3
	126	#define LED_POWER_BLINKING 4
	127	#define LED_INFO_ON 5
128	#define LED_INFO_BLINKING 6
129
130	static void __set_led(int blink_alarm, int blink_info, int blink_power,
131	int value_alarm, int value_info, int value_power)
132	{
133	kw_gpio_set_blink(GPIO_ALARM_LED, blink_alarm);
134	kw_gpio_set_blink(GPIO_INFO_LED, blink_info);
135	kw_gpio_set_blink(GPIO_POWER_LED, blink_power);
136	kw_gpio_set_value(GPIO_ALARM_LED, value_alarm);
137	kw_gpio_set_value(GPIO_INFO_LED, value_info);
138	kw_gpio_set_value(GPIO_POWER_LED, value_power);
139	}
140
141	static void set_led(int state)
142	{
143	switch (state) {
144	case LED_OFF:
a9f1a489	145	__set_led(0, 0, 0, 1, 1, 1);
f214a20e MW	146	break;
	147	case LED_ALARM_ON:
	148	__set_led(0, 0, 0, 0, 1, 1);
	149	break;
	150	case LED_ALARM_BLINKING:
	151	__set_led(1, 0, 0, 1, 1, 1);
	152	break;
	153	case LED_INFO_ON:
	154	__set_led(0, 0, 0, 1, 0, 1);
	155	break;
	156	case LED_INFO_BLINKING:
	157	__set_led(0, 1, 0, 1, 1, 1);
	158	break;
	159	case LED_POWER_ON:
	160	__set_led(0, 0, 0, 1, 1, 0);
	161	break;
	162	case LED_POWER_BLINKING:
	163	__set_led(0, 0, 1, 1, 1, 1);
	164	break;
	165	}
	166	}
	167
	168	int board_init(void)
	169	{
	170	/* address of boot parameters */
96c5f081	171	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
f214a20e MW	172
	173	set_led(LED_POWER_BLINKING);
	174
	175	return 0;
	176	}
	177
	178	#ifdef CONFIG_MISC_INIT_R
a9f1a489 MW	179	static void check_power_switch(void)
	180	{
	181	if (kw_gpio_get_value(GPIO_POWER_SWITCH)) {
9bd2317b	182	/* turn off fan, HDD and USB power */
a9f1a489 MW	183	kw_gpio_set_value(GPIO_HDD_POWER, 0);
a9f1a489 MW	184	kw_gpio_set_value(GPIO_USB_VBUS, 0);
9bd2317b MW	185	kw_gpio_set_value(GPIO_FAN_HIGH, 1);
9bd2317b MW	186	kw_gpio_set_value(GPIO_FAN_LOW, 1);
a9f1a489 MW	187	set_led(LED_OFF);
	188
	189	/* loop until released */
	190	while (kw_gpio_get_value(GPIO_POWER_SWITCH))
	191	;
	192
	193	/* turn power on again */
	194	kw_gpio_set_value(GPIO_HDD_POWER, 1);
	195	kw_gpio_set_value(GPIO_USB_VBUS, 1);
9bd2317b MW	196	kw_gpio_set_value(GPIO_FAN_HIGH, 0);
9bd2317b MW	197	kw_gpio_set_value(GPIO_FAN_LOW, 0);
a9f1a489 MW	198	set_led(LED_POWER_BLINKING);
	199	}
	200	}
	201
f214a20e MW	202	void check_enetaddr(void)
	203	{
	204	uchar enetaddr[6];
	205
	206	if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
	207	/* signal unset/invalid ethaddr to user */
	208	set_led(LED_INFO_BLINKING);
	209	}
	210	}
	211
	212	static void erase_environment(void)
	213	{
	214	struct spi_flash *flash;
	215
	216	printf("Erasing environment..\n");
	217	flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
	218	if (!flash) {
	219	printf("Erasing flash failed\n");
	220	return;
	221	}
	222
	223	spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE);
	224	spi_flash_free(flash);
	225	do_reset(NULL, 0, 0, NULL);
	226	}
	227
	228	static void rescue_mode(void)
	229	{
f214a20e	230	printf("Entering rescue mode..\n");
f214a20e MW	231	setenv("bootsource", "rescue");
	232	}
	233
	234	static void check_push_button(void)
	235	{
	236	int i = 0;
	237
	238	while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) {
	239	udelay(100000);
	240	i++;
	241
	242	if (i == 10)
	243	set_led(LED_INFO_ON);
	244
	245	if (i >= 100) {
	246	set_led(LED_INFO_BLINKING);
	247	break;
	248	}
	249	}
	250
	251	if (i >= 100)
	252	erase_environment();
	253	else if (i >= 10)
	254	rescue_mode();
	255	}
	256
	257	int misc_init_r(void)
	258	{
a9f1a489	259	check_power_switch();
f214a20e MW	260	check_enetaddr();
	261	check_push_button();
	262
	263	return 0;
	264	}
	265	#endif
	266
	267	#ifdef CONFIG_SHOW_BOOT_PROGRESS
	268	void show_boot_progress(int progress)
	269	{
	270	if (progress > 0)
	271	return;
	272
	273	/* this is not an error, eg. bootp with autoload=no will trigger this */
	274	if (progress == -BOOTSTAGE_ID_NET_LOADED)
	275	return;
	276
	277	set_led(LED_ALARM_BLINKING);
	278	}
	279	#endif