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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2012 Michael Walle
* Michael Walle <michael@walle.cc>
*
* Based on sheevaplug/sheevaplug.c by
* Marvell Semiconductor <www.marvell.com>
*/
#include <common.h>
#include <bootstage.h>
#include <command.h>
#include <env.h>
#include <env_internal.h>
#include <flash.h>
#include <init.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 <asm/global_data.h>
#include <linux/delay.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_env_get_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");
env_set("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
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