--- /dev/null
+/*
+ * 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 <asm/arch/kirkwood.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/mpp.h>
+#include <asm/arch/gpio.h>
+#include <spi_flash.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
+ */
+ kw_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 = kw_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)
+{
+ uchar enetaddr[6];
+
+ printf("Entering rescue mode..\n");
+#ifdef CONFIG_RANDOM_MACADDR
+ if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
+ eth_random_addr(enetaddr);
+ if (eth_setenv_enetaddr("ethaddr", enetaddr)) {
+ printf("Failed to set ethernet address\n");
+ set_led(LED_ALARM_BLINKING);
+ return;
+ }
+ }
+#endif
+ 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
Code Review / kvmfornfv.git / blobdiff